Power supply apparatus having electronic circuit breaker and control method thereof
阅读说明:本技术 具有电子断路器的电源供应设备及其控制方法 (Power supply apparatus having electronic circuit breaker and control method thereof ) 是由 殷任霈 于 2018-07-16 设计创作,主要内容包括:本发明提供一种具有电子断路器的电源供应设备及其控制方法。该具有电子断路器的电源供应设备包含有一电源输出端、一电源转换器及一电子断路器。通过电子断路器的运作,当一电器设备作为负载电连接在电源输出端与接地端之间时,电子断路器被启动,使该电源转换器输出的电压能够被输出至电源输出端,对电器设备进行充电。当电器设备充电完毕被移开时,电子断路器关闭,使电源转换器输出的电压无法输出至电源输出端。如此一来,即便电源输出端外露在外壳外面,当电器设备没有在充电时,电源输出端不会输出电压,因此使用者不会因为误触而被电击,进而提高使用的安全性。(The invention provides a power supply apparatus having an electronic circuit breaker and a control method thereof. The power supply equipment with the electronic circuit breaker comprises a power output end, a power converter and the electronic circuit breaker. Through the operation of the electronic circuit breaker, when an electric appliance is electrically connected between the power output end and the grounding end as a load, the electronic circuit breaker is started, so that the voltage output by the power converter can be output to the power output end to charge the electric appliance. When the electrical equipment is removed after charging, the electronic circuit breaker is closed, so that the voltage output by the power converter cannot be output to the power output end. Therefore, even if the power output end is exposed outside the shell, when the electrical equipment is not charged, the power output end can not output voltage, so that a user can not be shocked by mistake, and the use safety is improved.)
1. A power supply apparatus having an electronic circuit breaker, comprising:
a power supply output terminal;
a power converter having a first voltage output terminal and a second voltage output terminal; wherein the power converter performs feedback control according to the voltage output by the second voltage output terminal;
an electronic circuit breaker comprising:
the electronic switch is connected between the power supply output end and the second voltage output end and is provided with a control end so as to control the on-off of the electronic switch;
a processing unit having a first input terminal, a second input terminal, a third input terminal and a first output terminal; the first input end and the second input end are respectively connected to the first voltage output end and the second voltage output end, the third input end is connected with the power supply output end, and the first output end is connected with the control end of the electronic switch;
the processing unit executes a standby mode and judges whether the voltage value of the power supply output end is smaller than a starting critical value; when the processing unit judges that the voltage value of the power output end is smaller than the starting critical value, the processing unit generates a starting signal to be output from the first output end to control the electronic switch to be conducted so as to switch on the second voltage output end and the power output end, and the processing unit further judges whether the voltage value of the first voltage output end of the power converter is smaller than a closing critical value or not; when the processing unit judges that the voltage value of the first voltage output end is smaller than the closing critical value, the processing unit generates a closing signal to be output from the first output end, controls the electronic switch to be switched off, and executes the standby mode again.
2. The power supply apparatus with electronic circuit breaker of claim 1, wherein the power converter further comprises:
the primary side loop unit is connected with a power supply for receiving electric energy;
a primary side coupling coil electrically connected to the primary side loop unit;
a first secondary side coupling coil coupled to the primary side coupling coil and connected to the first voltage output terminal to output a first voltage through the first voltage output terminal;
a second secondary side coupling coil coupled to the primary side coupling coil and connected to the second voltage output terminal to output a second voltage through the second voltage output terminal; the number of turns of the first secondary side coupling coil is greater than that of the second secondary side coupling coil;
and the control unit is electrically connected to the second secondary side coupling coil and the primary side loop unit and generates a control signal to control the primary side loop unit according to a second voltage output by the second secondary side coupling coil.
3. The power supply apparatus with electronic circuit breaker of claim 1, wherein the electronic circuit breaker further comprises a switch circuit, the first output terminal of the processing unit is connected to the control terminal of the electronic switch through the switch circuit, the switch circuit comprises:
a first transistor having a drain, a gate and a source, the gate being electrically connected to the first output terminal of the processing unit, the source being electrically connected to a ground terminal;
a second transistor having an emitter, a base and a collector, the emitter being electrically connected to the first voltage output terminal, the base being electrically connected to the drain of the first transistor;
a third transistor having an emitter, a base and a collector, wherein the collector of the third transistor is electrically connected to the first voltage output terminal, the base of the third transistor is electrically connected to the collector of the second transistor, and the emitter of the third transistor is electrically connected to the control terminal of the electronic switch.
4. The power supply apparatus having an electronic circuit breaker according to claim 3, wherein the electronic switch comprises:
a fourth transistor having a drain, a gate and a source, the drain of the fourth transistor being electrically connected to the second voltage output terminal, the gate of the fourth transistor being electrically connected to the emitter of the third transistor, the source of the fourth transistor being electrically connected to the power output terminal; wherein the gate of the fourth transistor is the control terminal of the electronic switch;
and the first resistor is electrically connected between the grid electrode of the fourth transistor and the source electrode of the fourth transistor.
5. The power supply apparatus of claim 4, wherein the electronic circuit breaker further comprises a feedback current generating circuit, and the feedback current generating circuit comprises:
a seventh transistor having a drain, a gate and a source, the gate of the seventh transistor being electrically connected to a second output terminal of the processing unit, the source of the seventh transistor being electrically connected to the ground terminal;
an eighth transistor having an emitter electrically connected to the first voltage output terminal, a base electrically connected to the drain of the seventh transistor, and a collector electrically connected to the power output terminal through a fifth resistor;
when the processing unit judges that the voltage value of the power output end is smaller than the starting critical value, the processing unit further generates a feedback current starting signal to be output from the second output end to control the seventh transistor and the eighth transistor to be conducted;
when the processing unit judges that the voltage value of the first voltage input end is smaller than the closing critical value, the processing unit further generates a feedback current closing signal to be output from the second output end, and the seventh transistor and the eighth transistor are controlled to be switched off.
6. The power supply apparatus with an electronic circuit breaker as claimed in any one of claims 1 to 5, further comprising a standby power controller, characterized in that:
the electronic switch is connected to the second voltage output end of the power converter through the standby power controller, and the standby power controller is further connected to the power output end;
the first input end of the processing unit of the electronic circuit breaker is connected to the first voltage output end of the power converter through the standby power controller;
the second input of the processing unit of the electronic circuit breaker is directly connected to the second voltage output of the power converter;
when the voltage value of the power supply output end is larger than the starting critical value, the standby power supply controller disconnects the power supply converter from the electronic circuit breaker.
7. The power supply apparatus having an electronic circuit breaker of claim 6, wherein the standby power controller comprises:
a ninth transistor having an emitter, a base, and a collector, the emitter of the ninth transistor being electrically connected to the first voltage output terminal, the collector of the ninth transistor being electrically connected to the first input terminal of the processing unit of the electronic circuit breaker;
a tenth transistor having an emitter, a base, and a collector, the emitter of the tenth transistor being electrically connected to the second voltage output terminal, the collector of the tenth transistor being electrically connected to the electronic switch;
an eleventh transistor having a drain, a gate, and a source, the drain of the eleventh transistor being electrically connected to the base of the ninth transistor and the base of the tenth transistor, the source of the eleventh transistor being electrically connected to ground;
the switch unit is connected between the second voltage output end and the grounding end and is provided with a control end for controlling the on-off of the switch unit; wherein the power output terminal is electrically connected to the control terminal of the switch unit; wherein a gate of the eleventh transistor is electrically connected to a connection node of the switching unit and the second voltage output terminal, and is electrically connected to the first input terminal of the processing unit of the electronic circuit breaker.
8. A control method of power supply equipment with an electronic circuit breaker is characterized in that the control method is executed by the electronic circuit breaker and comprises the following steps:
receiving a first voltage output by a first voltage output end and a second voltage output by a second voltage output end of a power converter; the power converter performs feedback control according to the second voltage output by the second voltage output end;
receiving an output voltage of a power supply output end;
executing a standby mode;
judging whether the voltage value of the output voltage of the power supply output end is smaller than a starting critical value or not;
when the voltage value of the output voltage of the power supply output end is smaller than the starting critical value, a starting signal is generated, and the second voltage output end is connected with the power supply output end;
judging whether the voltage value of the first voltage input end is smaller than a closing critical value;
when the voltage value of the first voltage input end is smaller than the closing critical value, a closing signal is generated, the second voltage output end is disconnected with the power output end, and the standby mode is executed again.
9. The control method of a power supply apparatus having an electronic circuit breaker according to claim 8, characterized in that:
when the voltage value of the power output end is smaller than the starting critical value, the method is characterized by further generating a feedback current starting signal to generate a feedback current to be output to the power output end;
when the voltage value of the first voltage input end is smaller than the closing critical value, a feedback current closing signal is further generated to stop generating the feedback current.
10. The control method of a power supply apparatus having an electronic circuit breaker according to claim 8, characterized in that:
after the starting signal is generated, further judging whether the voltage value of the output voltage of the power supply output end is smaller than a short-circuit critical value;
when the voltage value of the output voltage of the power supply output end is smaller than the short-circuit critical value, the closing signal is generated, the second voltage output end is disconnected with the power supply output end, and whether the voltage value of the output voltage of the power supply output end is larger than a standby critical value or not is further judged; when the voltage value of the power supply output end is larger than the standby critical value, the standby mode is executed again;
when the voltage value of the output voltage of the power supply output end is not smaller than the short-circuit critical value, whether the voltage value of the first voltage input end is smaller than the closing critical value or not is judged.
Technical Field
The present invention relates to a power supply apparatus and a control method thereof, and more particularly, to a power supply apparatus having an electronic circuit breaker and a control method thereof.
Background
There are many electrical devices in modern homes, and generally, the electrical devices have a wire, so that the electrical devices can be electrically connected to the socket through the wire to receive the commercial power for normal operation. In addition, when the electrical equipment is movable, in order to facilitate the use of a user, the battery can be directly arranged in the movable electrical equipment, so that the electrical equipment can directly receive the electric energy of the battery to normally operate, the limitation of the wire is eliminated, and the user can conveniently move. When the power of the battery is consumed, the user needs to charge the electrical equipment, so that the next use is facilitated.
The charging device is electrically connected to the socket through a wire to receive electric energy, and the charging device is provided with a group of first charging electrodes. When the battery in the electrical equipment is not charged, the user can directly place the electrical equipment on the charging equipment, so that a group of second charging electrodes on the electrical equipment are contacted with the group of first charging electrodes on the charging equipment, and the battery in the electrical equipment can be electrically connected to the charging equipment through the group of first charging electrodes for charging.
In order to facilitate the sweeper to move to the charging device and make electrical contact with the charging device, the first charging electrode of the charging device must be exposed outside the housing to be in contact with the second charging electrode of the electrical device. However, when the first charging electrodes of the charging device are exposed outside the housing, the first charging electrodes are easily touched by the user by mistake, so that the user is easily shocked. Therefore, the existing charging equipment needs to be improved.
Disclosure of Invention
In view of the danger that the charging electrode of the conventional charging equipment is exposed and is easily touched by a user by mistake to cause the user to be shocked, the invention provides the power supply equipment with the electronic circuit breaker and the control method thereof.
The power supply apparatus with an electronic circuit breaker includes:
a power supply output terminal; a power converter having a first voltage output terminal and a second voltage output terminal; wherein the power converter performs feedback control according to the voltage output by the second voltage output terminal;
an electronic circuit breaker comprising:
the electronic switch is connected between the power output end and the second voltage output end of the power converter and is provided with a control end to control the on-off of the electronic switch;
a processing unit having a first input terminal, a second input terminal, a third input terminal and a first output terminal; the first input end and the second input end are respectively connected to a first voltage output end and a second voltage output end of the power converter, the third input end is connected with the power output end, and the first output end is connected with the control end of the electronic switch;
the processing unit executes a standby mode and judges whether the voltage value of the power supply output end is smaller than a starting critical value; when the processing unit judges that the voltage value of the power output end is smaller than the starting critical value, the processing unit generates a starting signal to be output from the first output end to control the electronic switch to be conducted so as to switch on the second voltage output end and the power output end, and the processing unit further judges whether the voltage value of the first voltage output end of the power converter is smaller than a closing critical value or not; when the processing unit judges that the voltage value of the first voltage output end is smaller than the closing critical value, the processing unit generates a closing signal to be output from the first output end, controls the electronic switch to be switched off, and executes the standby mode again.
The control method of the power supply equipment with the electronic circuit breaker is executed by the electronic circuit breaker and comprises the following steps:
receiving a first voltage output by a first voltage output end and a second voltage output by a second voltage output end of a power converter; wherein the power converter performs feedback control according to the voltage output by the second voltage output terminal;
receiving an output voltage of a power supply output end;
executing a standby mode;
judging whether the voltage value of the output voltage of the power supply output end is smaller than a starting critical value or not;
when the voltage value of the output voltage of the power supply output end is smaller than the starting critical value, a starting signal is generated, and the second voltage output end is connected with the power supply output end;
judging whether the voltage value of the first voltage input end is smaller than a closing critical value;
when the voltage value of the first voltage input end is smaller than the closing critical value, a closing signal is generated, the second voltage output end is disconnected with the power output end, and the standby mode is executed again.
When an electrical device is electrically connected to the power output end as a load through the operation of the electronic circuit breaker, the voltage value of the power output end is smaller than the starting critical value, the processing unit starts the electronic switch to be conducted, and the second voltage output end of the power converter is connected with the power output end to charge the electrical device. When the electrical equipment is removed after charging is completed, the charging current originally charging the electrical equipment is fed back to the second voltage output end of the power converter, so that the power converter is suspended, the voltage value of the first voltage output end of the power converter is smaller than the closing critical value, and the processing unit generates the closing signal to enable the electronic switch to cut off the connection between the second voltage output end and the power output end. Therefore, even if the power supply output end is exposed outside the shell, when the electrical equipment is not charged, the power supply output end can not supply power, so that a user can not be shocked by mistake, and the use safety is improved.
Drawings
Fig. 1 is a schematic circuit diagram of a power supply apparatus with an electronic circuit breaker according to a first preferred embodiment of the present invention.
Fig. 2 is a schematic circuit diagram of a power converter of the power supply apparatus having the electronic circuit breaker of the present invention.
Fig. 3 is a schematic circuit diagram of a power supply apparatus with an electronic circuit breaker according to a second preferred embodiment of the present invention.
Fig. 4 is a schematic circuit diagram of a power supply apparatus with an electronic circuit breaker according to a third preferred embodiment of the present invention.
Fig. 5 is a schematic circuit diagram of a fourth preferred embodiment of the power supply apparatus with an electronic circuit breaker according to the present invention.
Fig. 6 is a schematic circuit diagram of a fifth preferred embodiment of the power supply apparatus with an electronic circuit breaker according to the present invention.
Fig. 7 is a block schematic diagram of a standby power controller of a power supply apparatus having an electronic circuit breaker according to the present invention.
Fig. 8 is a circuit schematic diagram of a standby power controller of a power supply apparatus having an electronic circuit breaker according to the present invention.
Fig. 9 is a flowchart illustrating a control method of a power supply apparatus with an electronic circuit breaker according to a first preferred embodiment of the present invention.
Fig. 10 is a flowchart illustrating a control method of a power supply apparatus with an electronic circuit breaker according to a second preferred embodiment of the present invention.
Fig. 11 is a flowchart illustrating a control method of a power supply apparatus with an electronic circuit breaker according to a third preferred embodiment of the present invention.
Fig. 12 is a schematic flow chart illustrating a control method of a power supply apparatus with an electronic circuit breaker according to a fourth preferred embodiment of the present invention.
Reference numerals
11 power converter
12 electronic circuit breaker
121 processing unit
20 power supply
Detailed Description
The technical means adopted by the invention to achieve the preset purpose are further described below by combining the drawings and the preferred embodiment of the invention.
Referring to fig. 1 and 2, a first preferred embodiment of a power supply apparatus with an electronic circuit breaker includes a power output terminal V and a control method thereofoutA
The
The
The
The first input terminal I/P1 is connected to the first voltage output terminal OUT1, the second input terminal I/P2 is connected to the second voltage output terminal OUT2, and the third input terminal I/P3 is connected to the power output terminal VoutThe first output terminal O/P1 is connected to the control terminal of the
The
The present invention operates through the
As shown in fig. 2, the
The primary-
In addition, the power supply apparatus with electronic circuit breaker may further include a power factor converter (not shown), and the primary
Referring to fig. 3, a second preferred embodiment of the power supply apparatus with electronic circuit breaker is the same as the first preferred embodiment, but the
The first input terminal I/P1 is connected to the first voltage output terminal OUT1 through the
The first output terminal O/P1 of the
The first transistor Q1Has a drain, a gate and a source, the gate is electrically connected to the first output terminal O/P1 of the
The
The fourth transistor Q4Having a drain, a gate and a source, the fourth transistor Q4Is electrically connected to the second voltage output terminal OUT2, the fourth transistor Q4Is electrically connected to the third transistor Q3The fourth transistor Q4Is electrically connected to the power output terminal Vout. The fourth crystalTransistor Q4The gate of (a) is the control terminal of the
The operation of the power supply apparatus with the electronic circuit breaker of the present invention is described in detail as follows.
When the electrical equipment is not electrically connected to the power output end VoutDuring charging, the
When the electrical equipment is electrically connected to the power output end VoutWhen the electrical equipment is charged with the ground GND, since the electrical equipment is connected in parallel with the third
Due to the first transistor Q1The gate of the first transistor Q receives the start signal1Entering a conducting state to make the second transistor Q2The base of the second transistor Q is grounded2Is turned on and further makes the third transistor Q3Is connected to the first voltage output terminal OUT1, so that the third transistor Q3Is turned on and further makes the fourth transistor Q4To the first voltage output terminal OUT1, so that the fourth transistor Q4And conducting.
In detail, when the third transistor Q is used3When conducting, the first voltage output terminal OUT1 passes through the first resistor R1And the third
In addition, since the
Therefore, when the electrical device is removed, the first resistor R passes through the first voltage output terminal OUT11And the third
Since the first voltage outputted from the first voltage output terminal OUT1 begins to drop, when the
In summary, the present invention operates the
Referring to fig. 4 again, a third preferred embodiment of the power supply apparatus with electronic breaker is the same as the second preferred embodiment, and the
The fifth transistor Q5Having a drain, a gate and a source, and the fifth transistor Q5Is electrically connected to the first output terminal O/P1 of the
Due to the fifth transistor Q5And the gate and source of the first transistor Q1The gate and source of (a) are connected in the same way, so that when the first transistor Q is connected1When entering the conducting state, the fifth transistor Q5And likewise will go into the on state altogether. While the fifth transistor Q is used5When entering the conducting state, the sixth transistor Q6Is connected to the ground terminal GND, so that the sixth transistor Q6The cut-off state is entered. In addition, as described above, when the first transistor Q is used1When entering the conducting state, the second transistor Q2Also enters a conductive state, so that the first voltage output terminal OUT1 can pass through the second transistor Q2For the first capacitor C1Charging and letting the third transistor Q3Can follow the voltage of the first capacitor C1Is slowly raised, thereby soft starting (soft start) the
Further, referring to fig. 5, a fourth preferred embodiment of the power supply apparatus with electronic circuit breaker is the same as the third preferred embodiment, but the
The seventh transistor Q7Having a drain, a gate and a source, the seventh transistor Q7Is electrically connected to a second output terminal O/P2 of the
The eighth transistor Q8Through the third resistor R3Is electrically connected to the eighth transistor Q8The base of (1). The eighth transistor Q8Through the fourth resistor R4Is electrically connected to the seventh transistor Q7Of the substrate. The eighth transistor Q8Through the fifth resistor R5Is electrically connected to the voltage output terminal Vout. In the preferred embodiment, more specifically, the eighth transistor Q8Is through the fifth resistor R5Is electrically connected to the fourth transistor Q4Of the substrate.
And when the
When the
For example, when the electrical equipment is electrically connected to the power output terminal VoutWhen charging, the
However, when the electrical device is removed, the feedback current cannot be continuously outputted to the power output terminal VoutTherefore, the feedback current is fed back to the second voltage output terminal OUT 2. As described above, the feedback current fed back to the second voltage output terminal OUT2 causes the second voltage output by the second voltage output terminal OUT2 to exceed the threshold value, and the
In addition, when the electrical device is removed, the
By further providing the feedback
Referring to fig. 6, a fifth preferred embodiment of the power supply apparatus with electronic circuit breaker is substantially the same as the fourth preferred embodiment, wherein the difference is that the eighth transistor Q of the feedback
Further, in the first to fifth preferred embodiments of the power supply apparatus with electronic circuit breaker, after the
When the
When the
When the user accidentally touches the exposed power output end VoutResult in the power supply output terminal VoutWhen short-circuited with the ground terminal GND, the power supply output terminal VoutThe voltage value of the first voltage is equal to the ground GND, which is 0 v. However, when the power supply output terminal V is connectedoutWhen the short circuit with the ground GND occurs, the
Therefore, to avoid such false activation condition, when the
In addition, when the
Further, as shown in fig. 6, the first
The second
The third
The
The first transistor Q1Through the thirteenth resistor R13Is electrically connected to the first output terminal O/P1 of the
The feedback
Referring to fig. 7 and 8, the power supply apparatus with electronic circuit breaker further includes a
The
The first part isNine transistors Q9Has an emitter, a base and a collector. The ninth transistor Q9Is electrically connected to the first voltage output terminal OUT1, the ninth transistor Q9Is electrically connected to the first input I/P1 of the
The eleventh transistor Q11Having a drain, a gate and a source, the eleventh transistor Q11The source of the first transistor is electrically connected to the ground GND.
The power supply output end VoutThrough the second resistor R22Is electrically connected to the switch unit U1A control terminal of (1). The switch unit U1The control terminal is electrically connected to the ground terminal GND through the zener diode ZD.
The second voltage output terminal OUT2 passes through the second third resistor R23And the switch unit U1Is electrically connected to the ground GND, and the second voltage output terminal OUT2 passes through the second third resistor R23And the fourth diode D4Is electrically connected to the eleventh transistor Q11A gate electrode of (1).
The first output terminal O/P1 passes through the third diode D3Is electrically connected to the eleventh transistor Q11A gate electrode of (1). The second eight resistor R28Is electrically connected to the eleventh transistor Q11And the eleventh transistor Q11Between the source electrodes of (1).
The ninth transistor Q9Through the second four resistors R24Is electrically connected to the ninth transistor Q9The base of (1). The ninth transistor Q9Through the second five resistors R25And the first diode D1Is electrically connected to the eleventh transistor Q11Of the substrate.
The tenth transistor Q10Through the second six resistors R26Is electrically connected to the tenth transistor Q10The base of (1). The tenth transistor Q10Through the second seventh resistor R27And the second diode D2Is electrically connected to the eleventh transistor Q11Of the substrate.
The second voltage output terminal OUT2 passes through the second capacitor C2Is electrically connected to the ground GND.
When the electrical equipment is not electrically connected to the power output end VoutWhen charging, the power output end VoutThe voltage value of (a) is maintained at a state greater than the activation threshold value. So that the power supply output terminal VoutThe output voltage can pass through the second resistor R22To the switch unit U1The control terminal of the switch unit U1Maintain the eleventh transistor Q in a conducting state11The gate of the eleventh transistor Q is grounded11Is maintained in the off state. Further, when the eleventh transistor Q11When the ninth transistor Q is maintained in the OFF state9And the tenth transistor Q10So that the base of the ninth transistor Q cannot be grounded9And the tenth transistor Q10Also maintained in the off state.
At this time, since the ninth transistor Q9And the tenth transistor Q10Are both in the off state, the first voltage output terminal OUT1 and the second voltage output terminal OUT2 cannot pass through the ninth transistor Q9And the tenth transistor Q10Is connected to the
However, when the electrical device is initially electrically connected to the power output terminal VoutWhen the power supply output end V is connected to the power supplyoutWill decrease the voltage value of the switch unit U1The voltage value of the control terminal is reduced to ensure that the switch unit U1And becomes an off state. When the switch unit U1When the second voltage output terminal OUT2 is turned off, the second voltage output terminal OUT2 passes through the second resistor R23The fourth oneDiode D4And the second eight resistor R28Form a loop to generate current to make the eleventh transistor Q11And conducting. When the eleventh transistor Q11When turned on, the ninth transistor Q9And the tenth transistor Q10Will also be conductive.
At this time, since the ninth transistor Q9And the tenth transistor Q10In the on state, the first voltage output terminal OUT1 and the second voltage output terminal OUT2 can be connected to the
In addition, when the electrical equipment is electrically connected to the power output end VoutWhen charging, the power output end VoutWill be the same as the voltage value of the second voltage output terminal OUT2, i.e. the switching unit U1It will be turned on. But when the electrical device is electrically connected to the power output terminal VoutWhen charging, the first output terminal O/P of the
Further, referring to fig. 9, the control method of the power supply apparatus with the electronic circuit breaker is executed by the
receives the first voltage outputted from the first voltage output terminal OUT1 and the second voltage outputted from the second voltage output terminal OUT2 of the
executing the standby mode (S902);
judging the power output end VoutWhether the voltage value of the output voltage is less than the start-up threshold value (S903);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the start threshold value, the start signal is generated to make the second voltage output terminal OUT2 switch on the power output terminal Vout(S904);
Determining whether the voltage value of the first voltage at the first voltage output terminal OUT1 is less than a turn-off threshold (S905);
when the voltage value of the first voltage at the first voltage output terminal OUT1 is less than the turn-off threshold, a turn-off signal is generated to make the second voltage output terminal OUT2 and the power output terminal VoutIs turned off (S906), and the standby mode is re-executed (S902).
Referring to fig. 10, a second preferred embodiment of the control method includes the following steps:
receives the first voltage outputted from the first voltage output terminal OUT1 and the second voltage outputted from the second voltage output terminal OUT2 of the
executing the standby mode (S1002);
judging the power output end VoutWhether the voltage value of the output voltage is less than the start-up threshold value (S1003);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the start threshold value, the start signal is generated to make the second voltage output terminal OUT2 switch on the power output terminal Vout(S1004);
When the power supply output end VoutWhen the voltage value of the output voltage is smaller than the starting critical value, the feedback current starting signal is further generated to generate a feedback current to be output to the power output end Vout(S1005);
Determining whether the voltage value of the first voltage at the first voltage output terminal OUT1 is less than the turn-off threshold (S1006);
when the voltage value of the first voltage at the first voltage output terminal OUT1 is smaller than the turn-off threshold, the feedback current turn-off signal is generated to stop generating the feedback current (S1007), and the turn-off signal is generated to connect the second voltage output terminal OUT2 and the power output terminal VoutDisconnecting (S1008);
the standby mode is re-executed (S1002).
Referring to fig. 11, a third preferred embodiment of the control method includes the following steps:
receives the first voltage outputted from the first voltage output terminal OUT1 and the second voltage outputted from the second voltage output terminal OUT2 of the
executing the standby mode (S1102);
judging the power output end VoutWhether the voltage value of the output voltage is less than the start-up threshold value (S1103);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the start threshold value, the start signal is generated to make the second voltage output terminal OUT2 switch on the power output terminal Vout(S1104);
Judging the power output end VoutWhether the voltage value of the output voltage of (1) is less than the short-circuit critical value (S1105);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the short-circuit threshold value, the turn-off signal is generated to make the second voltage output terminal OUT2 and the power output terminal VoutDisconnecting (S1106), and further determining the power output terminal VoutWhether the voltage value of the output voltage is greater than the standby critical value (S1107); when the power supply output end VoutWhen the voltage value of the output voltage is greater than the standby threshold value, re-executing the standby mode (S1102);
when the power supply output end VoutWhen the voltage value of the output voltage is not less than the short-circuit threshold, determining whether the voltage value of the first voltage output terminal OUT1 is less than the turn-off threshold (S1108);
when the voltage value of the first voltage at the first voltage output terminal OUT1 is less than the turn-off threshold, the turn-off signal is generated to make the second voltage output terminal OUT2 and the power output terminal VoutIs turned off (S1106), and the standby mode is re-executed (S1102).
Referring to fig. 12, a fourth preferred embodiment of the control method includes the following steps:
receives the first voltage outputted from the first voltage output terminal OUT1 and the second voltage outputted from the second voltage output terminal OUT2 of the
executing a standby mode (S1202);
judging the power output end VoutWhether the voltage value of the output voltage is smaller than the start threshold value (S1203);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the start threshold value, the start signal is generated to make the second voltage output terminal OUT2 switch on the power output terminal Vout(S1204);
Delaying a first time (S1205);
judging the power output end VoutWhether the voltage value of the output voltage is less than the short-circuit threshold value (S1206);
when the power supply output end VoutWhen the voltage value of the output voltage is smaller than the short-circuit threshold value, the turn-off signal is generated to make the second voltage output terminal OUT2 and the power output terminal VoutDisconnecting (S1207), and further determining the power output terminal VoutWhether the voltage value of the output voltage is greater than a standby critical value (S1208); when the power supply output end VoutWhen the voltage value of the output voltage is larger than the standby critical value, the standby critical value is executed againA standby mode (S1202);
when the power supply output end VoutWhen the voltage value of the output voltage is not less than the short-circuit threshold value, delaying a second time (S1209), and generating the feedback current start signal to generate a feedback current to be output to the power output terminal Vout(S1210) and determining whether the voltage value of the first voltage at the first voltage output terminal OUT1 is less than the turn-off threshold (S1211);
when the voltage value of the first voltage at the first voltage output terminal OUT1 is less than the turn-off threshold, the feedback current turn-off signal is generated to stop generating the feedback current (S1212), and the turn-off signal is generated to connect the second voltage output terminal OUT2 and the power output terminal VoutDisconnecting (S1207), and further judging the power supply output end VoutWhether the voltage value of the output voltage is greater than the standby critical value (S1208); when the power supply output end VoutWhen the voltage value of the output voltage is greater than the standby threshold value, the standby mode is executed again (S1202).
In the preferred embodiment, the first time is 100 microseconds (μ s) and the second time is 2 milliseconds (ms).
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
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