阅读说明：本技术 一种直流可编程大功率电压调节器 (Direct current high-power voltage regulator able to programme ) 是由 陈建风 赖伟明 于 2019-12-09 设计创作，主要内容包括：本发明涉及一种直流可编程大功率电压调节器,包括STM8S系列单片机、串口通讯模块、LED显示器、风速调节模块、键盘控制模块、调压模块、电流取样模块,STM8S系列单片机连接串口通讯模块,STM8S系列单片机的输入端连接键盘控制模块,STM8S系列单片机的输出端分别连接LED显示器、风速调节模块、NE555集成电路的输入端,NE555集成电路的输出端连接调压模块,调压模块的输出端连接电流取样模块的输入端,电流取样模块的输出端连接STM8S系列单片机的输入端,且与键盘控制模块相连；本发明能够实现直流供电系统中每个独立用电单元电压可独立调节、输出、保护,且每个独立单元输出电压精确稳定。(The invention relates to a direct-current programmable high-power voltage regulator, which comprises an STM8S series single chip microcomputer, a serial communication module, an LED display, a wind speed regulating module, a keyboard control module, a voltage regulating module and a current sampling module, wherein the STM8S series single chip microcomputer is connected with the serial communication module, the input end of an STM8S series single chip microcomputer is connected with the keyboard control module, the output end of the STM8S series single chip microcomputer is respectively connected with the LED display, the wind speed regulating module and the input end of an NE555 integrated circuit, the output end of the NE555 integrated circuit is connected with the voltage regulating module, the output end of the voltage regulating module is connected with the input end of the current sampling module, and the output end of the current sampling module is connected with; the invention can realize that the voltage of each independent power utilization unit in the direct current power supply system can be independently regulated, output and protected, and the output voltage of each independent unit is accurate and stable.)

1. A direct current programmable high power voltage regulator is characterized in that: the wind power generation device comprises an STM8S series single chip microcomputer (1), a serial communication module (2), an LED display (3), a wind speed adjusting module (4), a keyboard control module (5), an NE555 integrated circuit (6), a pressure regulating module (7) and a current sampling module (8), wherein the STM8S series single chip microcomputer (1) is connected with the serial communication module (2), the input end of the STM8S series single chip microcomputer (1) is connected with the output end of the keyboard control module (5), the output end of the STM8S series single chip microcomputer (1) is respectively connected with the input ends of the LED display (3), the wind speed adjusting module (4) and the NE555 integrated circuit (6), the output end of the NE555 integrated circuit (6) is connected with the input end of the pressure regulating module (7), the output end of the pressure regulating module (7) is connected with the input end of the current sampling module (8), the output end of the current sampling module (8) is connected, and the current sampling module (8) is connected with the keyboard control module (5).

2. The dc programmable high power voltage regulator of claim 1, wherein: the keyboard control module (5) comprises an up page turning key (9), a down page turning key (10), a MEMORY call key (11), a SET selection key (12), an OUTPUT/OK confirmation key (13) and a FUNCTION knob key (14), wherein the up page turning key (9) is used for turning up pages to quickly SET voltage and current values, the down page turning key (10) is used for turning down pages to quickly SET voltage and current values, the MEMORY call key (11) is a cursor left-right moving key, the SET selection key (12) is used for setting parameter selection, the OUTPUT/OK confirmation key (13) is used for outputting confirmation, and the FUNCTION knob key (14) is used for selecting FUNCTIONs stored in an STM8S series single chip microcomputer (1) in equipment and setting corresponding parameter values.

3. The dc programmable high power voltage regulator of claim 2, wherein: keyboard control module (5) set up required mode to confirm OUTPUT through OUTPUT OK confirm key (13) of keyboard control module (5), voltage regulating module (7) are including switch tube, energy storage inductance, rectifier circuit connects gradually switch tube, energy storage inductance, voltage regulating module (7) are used for realizing the voltage regulation OUTPUT, the switch tube in NE555 integrated circuit (6) control voltage regulating module (7) realizes that voltage OUTPUT is stable.

4. The dc programmable high power voltage regulator of claim 3, wherein: a temperature detection sensor is arranged in the voltage regulator, and the temperature detection sensor regulates the voltage and the current of the wind speed regulation module (4) through an STM8S series single chip microcomputer (1).

5. The dc programmable high power voltage regulator of claim 4, wherein: the serial port communication module (2) is provided with a TTL serial port communication protocol, and the serial port communication module (2) is connected with the STM8S series single chip microcomputer (1) through the communication protocol and is in communication connection with a computer through a serial port to realize data acquisition.

6. The dc programmable high power voltage regulator of claim 5, wherein: the keyboard control module (5) is arranged on a front panel (15) of the voltage regulator, the front panel (15) of the voltage regulator is further provided with an LED display (3), an indicator lamp (17) and an on-off key (18), the LED display (3), the indicator lamp (17) and the on-off key (18) are respectively connected with a display wire arranging terminal, an indicator lamp wire arranging terminal and a switch wire arranging terminal inside the voltage regulator, and the indicator lamp (17) is used for indicating output states in different modes.

7. The dc programmable high power voltage regulator of claim 6, wherein: be equipped with INPUT socket (19) and RS232 serial ports (20) on voltage regulator's rear panel (16), INPUT socket (19), RS232 serial ports (20) are connected the inside INPUT terminal of voltage regulator, RS232 serial ports communication terminal respectively, INPUT socket (19) are used for the INPUT as DC power supply, RS232 serial ports (20) are used for as the communication between voltage regulator and the computer.

8. The dc programmable high power voltage regulator of claim 7, wherein: the voltage regulator is internally provided with an over-temperature protection OTP module, an upper limit voltage protection OVP module, an upper limit current protection OCP module, an upper limit power protection OPP module, an overcharge capacity protection OAH module and an overtime protection OFFTIME module.

[ technical field ]

The invention relates to the technical field of electric appliance control, in particular to a direct-current programmable high-power voltage regulator.

[ background art ]

At present, an independent direct-current power supply has a voltage regulation function, but in a direct-current power supply system, when a certain independent power utilization unit needs to regulate voltage, the voltage of the whole direct-current power supply system can only be regulated, so that the power supply voltage of other independent power utilization units in the direct-current power supply system is influenced, and therefore each power utilization unit needs to be provided with a voltage and current measuring device and a circuit protection device to prevent danger caused by circuit faults.

[ summary of the invention ]

The invention aims to solve the defects and provide a direct current programmable high-power voltage regulator, which can realize independent regulation, output and protection of the voltage of each independent power unit in a direct current power supply system, and the output voltage of each independent unit is accurate and stable.

The direct current programmable high-power voltage regulator comprises an STM8S series single chip microcomputer 1, a serial communication module 2, an LED display 3, a wind speed regulating module 4, a keyboard control module 5, an NE555 integrated circuit 6, a voltage regulating module 7 and a current sampling module 8, the STM8S series single chip microcomputer 1 is connected with the serial port communication module 2, the input end of the STM8S series single chip microcomputer 1 is connected with the output end of the keyboard control module 5, the output end of the STM8S series single chip microcomputer 1 is respectively connected with the input ends of the LED display 3, the wind speed adjusting module 4 and the NE555 integrated circuit 6, the output end of the NE555 integrated circuit 6 is connected with the input end of the voltage regulating module 7, the output end of the voltage regulating module 7 is connected with the input end of the current sampling module 8, the output end of the current sampling module 8 is connected with the input end of the STM8S series single chip microcomputer 1, and the current sampling module 8 is connected with the keyboard control module 5.

Further, the keyboard control module 5 includes a page up key 9, a page down key 10, a MEMORY call key 11, a SET select key 12, an OUTPUT/OK confirm key 13, and a FUNCTION button key 14, the page up key 9 is used for turning up pages to SET a voltage and a current value quickly, the page down key 10 is used for turning down pages to SET a voltage and a current value quickly, the MEMORY call key 11 is a cursor left-right moving key, the SET select key 12 is used for setting parameter selection, the OUTPUT/OK confirm key 13 is used for outputting confirmation, and the FUNCTION button key 14 is used for selecting a FUNCTION stored in the STM 8S-series single chip microcomputer 1 in the device and setting a corresponding parameter value.

Further, keyboard control module 5 sets up required mode to confirm the OUTPUT through OUTPUT OK confirm key 13 of keyboard control module 5, pressure regulating module 7 includes switch tube, energy storage inductance, rectifier circuit connects gradually switch tube, energy storage inductance, pressure regulating module 7 is used for realizing voltage regulation OUTPUT, the switch tube among the NE555 integrated circuit 6 control pressure regulating module 7 realizes that voltage OUTPUT is stable.

Furthermore, a temperature detection sensor is arranged in the voltage regulator, and the temperature detection sensor regulates the voltage and the current of the wind speed regulation module 4 through an STM8S series single chip microcomputer 1.

Further, the serial port communication module 2 has a TTL serial port communication protocol, and the serial port communication module 2 is connected with the STM8S serial single chip microcomputer 1 through the communication protocol and is in communication connection with a computer through a serial port to realize data acquisition.

Further, the keyboard control module 5 is arranged on a front panel 15 of the voltage regulator, the front panel 15 of the voltage regulator is further provided with an LED display 3, an indicator light 17 and an on-off key 18, the LED display 3, the indicator light 17 and the on-off key 18 are respectively connected with a display bus bar terminal, an indicator light bus bar terminal and an on-off bus bar terminal inside the voltage regulator, and the indicator light 17 is used for indicating output states in different modes.

Further, an INPUT socket 19 and an RS232 serial port 20 are arranged on the rear panel 16 of the voltage regulator, the INPUT socket 19 and the RS232 serial port 20 are respectively connected with an INPUT terminal and an RS232 serial port communication terminal inside the voltage regulator, the INPUT socket 19 is used for being used as the INPUT of a direct-current power supply, and the RS232 serial port 20 is used for being used for communication between the voltage regulator and a computer.

Further, an over-temperature protection OTP module, an upper limit voltage protection OVP module, an upper limit current protection OCP module, an upper limit power protection OPP module, an overcharge capacity protection OAH module and an overtime protection OFFTIME module are arranged in the voltage regulator.

Compared with the prior art, the invention has the following advantages:

(1) according to the invention, in a direct-current power supply system, the voltage of each independent power unit can be independently regulated, output and protected, the output voltage of each independent unit is accurate and stable, the voltage reduction of the power supply system caused by wiring is effectively prevented, the high-precision voltage and current sampling circuit in the device realizes high output precision, the voltage display precision can reach 10mV, and the current can reach 10 mA;

(2) according to the invention, the voltage and current calibration function is provided, when the voltage and current display value has deviation with the measured value, the calibration can be carried out through the 'SET U _ CAL' voltage calibration and the 'SET I _ CAL' current calibration, the voltage calibration point is 5V and 28V, and the current calibration point is 1A and 8A, so that the accuracy of equipment parameters is ensured;

(3) multiple protection functions are arranged in the invention, such as over-temperature protection OTP, upper limit voltage protection OVP, upper limit current protection OCP, upper limit power protection OPP, overcharge capacity protection OAH and overtime protection OFFTIME, so as to ensure the safety of the equipment in the same operation and test process;

(4) the internal intelligent temperature control module can realize 5-level intelligent regulation of the rotating speed of the fan, so that the heating temperature of equipment is controlled;

(5) the invention is provided with the RS232 serial port communication terminal, realizes the connection communication and control with a computer, thereby recording the measured electrical parameter value in real time and supporting the secondary development.

(6) The invention adopts PWM pulse width modulation, and a switching power supply technology based on a BUCK voltage reduction framework, has the advantages of high safety and stability, high response speed, high output precision and perfect protection function, has 10 sets of parameter settings in the equipment, can self-define storage settings, is convenient to call, and is worthy of popularization and application.

[ description of the drawings ]

FIG. 1 is a schematic diagram of a front panel construction of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a schematic diagram of the construction of the back panel of the present invention;

FIG. 4 is a schematic side view of the present invention;

FIG. 5 is a schematic view of the internal top surface structure of the present invention;

FIG. 6 is a schematic view of the internal side structure of the present invention;

FIG. 7 is a functional block diagram of the present invention;

in the figure: 1. STM8S series single-chip microcomputer 2, serial port communication module 3, LED display 4, wind speed adjusting module 5, keyboard control module 6, NE555 integrated circuit 7, voltage adjusting module 8, current sampling module 9, page up key 10, page down key 11, MEMORY storage call key 12, SET selection key 13, OUTPUT/OK confirm key 14, FUNCTION knob key 15, front panel 16, rear panel 17, indicator light 18, switch key 19, INPUT socket 20, RS232 serial port.

[ detailed description of the invention ]

The invention provides a direct-current programmable high-power voltage regulator which comprises an STM8S series single chip microcomputer 1, a serial communication module 2, an LED display 3, a wind speed regulating module 4, a keyboard control module 5, an NE555 integrated circuit 6, a voltage regulating module 7 and a current sampling module 8, wherein the STM8S series single chip microcomputer 1 is connected with the serial communication module 2, the input end of the STM8S series single chip microcomputer 1 is connected with the output end of the keyboard control module 5, the output end of the STM8S series single chip microcomputer 1 is respectively connected with the LED display 3, the wind speed regulating module 4 and the input end of the NE555 integrated circuit 6, the output end of the NE555 integrated circuit 6 is connected with the input end of the voltage regulating module 7, the output end of the voltage regulating module 7 is connected with the input end of the current sampling module 8, the output end of the current sampling module 8 is connected with the input end of the ST.

The keyboard control module 5 comprises an up page turning key 9, a down page turning key 10, a MEMORY call key 11, a SET selection key 12, an OUTPUT/OK confirmation key 13 and a FUNCTION FUNCTION knob key 14, wherein the up page turning key 9 is used for turning up pages to quickly SET voltage and current values, the down page turning key 10 is used for turning down pages to quickly SET voltage and current values, the MEMORY call key 11 is a cursor left-right moving key, the SET selection key 12 is used for setting parameter selection, the OUTPUT/OK confirmation key 13 is used for OUTPUT confirmation, and the FUNCTION knob key 14 is used for selecting FUNCTIONs stored in an STM8S series single chip microcomputer 1 in equipment and setting corresponding parameter values. The keyboard control module 5 sets a required working mode, the OUTPUT is determined through an OUTPUT/OK confirming key 13 of the keyboard control module 5, the voltage regulating module 7 comprises a switch tube, an energy storage inductor and a rectifying circuit, the rectifying circuit is sequentially connected with the switch tube and the energy storage inductor, the voltage regulating module 7 is used for realizing voltage regulation OUTPUT, and the NE555 integrated circuit 6 controls the switch tube in the voltage regulating module 7 to realize stable voltage OUTPUT.

In the invention, the serial communication module 2 is provided with a TTL serial communication protocol, and the serial communication module 2 is connected with the STM8S series single chip microcomputer 1 through the communication protocol and is in communication connection with a computer through a serial port so as to realize data acquisition. The keyboard control module 5 is arranged on a front panel 15 of the voltage regulator, the front panel 15 of the voltage regulator is further provided with an LED display 3, an indicator lamp 17 and an on-off key 18, the LED display 3, the indicator lamp 17 and the on-off key 18 are respectively connected with a display bus bar terminal, an indicator lamp bus bar terminal and a switch bus bar terminal inside the voltage regulator, and the indicator lamp 17 is used for indicating output states in different modes. An INPUT socket 19 and an RS232 serial port 20 are arranged on a rear panel 16 of the voltage regulator, the INPUT socket 19 and the RS232 serial port 20 are respectively connected with an INPUT terminal and an RS232 serial port communication terminal in the voltage regulator, the INPUT socket 19 is used for inputting a direct-current power supply, and the RS232 serial port 20 is used for communication between the voltage regulator and a computer. A temperature detection sensor is arranged in the voltage regulator, and the temperature detection sensor regulates the voltage and the current of the wind speed regulation module 4 through an STM8S series single chip microcomputer 1. The voltage regulator is also internally provided with an over-temperature protection OTP module, an upper limit voltage protection OVP module, an upper limit current protection OCP module, an upper limit power protection OPP module, an overcharge capacity protection OAH module and an overtime protection OFFTIME module.

The direct-current programmable high-power voltage regulator adopts PWM pulse width modulation, is based on a switching power supply technology of a BUCK voltage reduction framework, has the working frequency of 150kHz, the direct-current input voltage of 12-60 volts, the input voltage range is wide, the output direct-current voltage of 0-60 volts, and has the advantages of high safety and stability, high response speed, high output precision and perfect protection function; the device can be internally provided with 10 groups of parameter settings, so that the device can be stored and set by user-definition and is convenient to call.

Like the front panel of fig. 1 and the back panel of fig. 3, the display bus on the front panel is connected with the internal display bus terminal to display the measured parameter values with the same function. The CV, CC and ON indicating lamp row lines ON the front panel are connected with an internal indicating lamp row line terminal, are used for indicating states in different modes and are equal to output state indicating lamps. The "FUNCTION knob on the front panel connects to the internal FUNCTION knob terminals for selecting different FUNCTIONs of the device, equivalent to the encoder adjustment knob. The button winding displacement such as "MEMORY", "SET", "Output" on the front panel connects the terminal of the internal button winding displacement, used for choosing and setting up the Output, equal to operating the button. The "Output" terminal on the front panel is connected to an Output terminal inside the device, and outputs the set Output voltage. The switch key on the front panel is connected to the switch key terminal inside the device for the switching function of the device, which is equivalent to a power switch. The "INPUT" terminal on the back panel is connected to the INPUT terminal inside the device as the INPUT of the dc power supply. The RS232 terminal on the back panel is connected to the serial communication interface inside the equipment for communication between the equipment and the computer. The power supply terminal of the direct current power supply system is connected with an 'Input' terminal of a rear panel in the attached figure 3, the required working mode and voltage are set through a setting key of a front panel or an RS232 serial port, and the equipment OUTPUTs through an 'OUTPUT' terminal on the front panel.

As shown in fig. 7, which is a working principle block diagram of the invention, it can be seen from the figure that the invention is composed of an STM8S series single chip microcomputer, a serial port communication module, an LED display, a wind speed adjusting module, a keyboard control module, a voltage adjusting module, a current sampling module, etc., and adopts the principle of PWM pulse width modulation and voltage reduction type switching power supply. Wherein the content of the first and second substances,

(1) voltage output regulation: the required working mode and voltage current are set through keyboard control, the output is determined through an 'OK' key of a keyboard, the voltage regulating module realizes voltage regulation output through a switching tube 75652G, an energy storage inductor and a rectifying circuit, an output voltage value is monitored and compared with a set voltage value, when the output voltage is deviated from the set voltage value, the PWM pulse width is regulated, and the switching tube in the voltage regulating module is controlled through NE555 to realize stable voltage output.

(2) Current measurement: when the voltage is output through the voltage regulating module, when the current passes through the 5m omega high-precision low-resistance sampling resistor R5, the voltage signal on the 5m omega is monitored and fed back to the current measuring module for current measurement.

(3) Adjusting the wind speed: have intelligent temperature detection in the equipment, the detection sensor is with according to equipment output' S size, and the condition of generating heat of equipment passes through singlechip STM8S00 and adjusts the voltage of wind speed module with the electric current, reaches 5 level rotational speeds of radiator fan and adjusts, reduces generating heat of equipment.

(4) Serial port communication: the equipment is provided with a TTL serial port communication protocol, and can realize communication connection between a computer and the equipment through a serial port, so as to realize data acquisition and control of output mode parameters. The voltage, current, power electrical parameters and the like return to the single chip microcomputer STM8S00 through the measuring circuit, and the communication module is connected with the single chip microcomputer through a communication protocol to read measured values.

(5) And (3) keyboard control: the functions stored in the single chip microcomputer in the equipment are selected through the function knob keys of the keyboard, corresponding parameter values are set, when the set values or the functions are achieved in the using process, the single chip microcomputer STM8S00 sends out control commands to carry out corresponding control, and the equipment functions are shown as the following table:

FIG. 1 sets the parameters by key press, as the following table:

the invention sets the required voltage and current parameters: in the power-on state, pressing the 'SET' key, stopping the cursor at the voltage SET value, rotating the 'FUNCTION' to SET the voltage parameter, pressing the 'SET' cursor again to move to the current SET value, rotating the 'FUNCTION' to SET the OUTPUT current value, pressing the 'SET' key again, the cursor disappears, rotating the 'FUNCTION' to display the 'SAVE DATA Press < OK > Enter', pressing the 'OUTPUT/OK' key at this moment, saving the setting, pressing the 'OUTPUT/OK' key again, and outputting the SET electrical parameter value by the equipment. When the "OUTPUT/OK" key is pressed again, the device stops outputting.

The invention is further illustrated below with reference to specific examples:

taking an independent power utilization unit in a direct current power supply system as an example for charging mobile power, the electrical parameter on a nameplate of the mobile power supply is 5V1.5A, and the output parameter of the equipment is set to be 5V2A to output for charging the power.

The power supply of the direct current power supply system is connected to an 'INPUT' terminal of a rear panel in the attached drawing 3, the INPUT end of the mobile power supply is connected to an 'OUTPUT' terminal in the attached drawing 1, a switch key on a panel of the equipment is turned on, and the equipment is started; pressing the 'SET' key, the cursor flickers in the voltage column, and 'FUNCTION' moves the cursor to the SET voltage level, and the voltage is SET to be 5V through the page up key and the page down key; pressing a 'SET' key, moving a cursor to a current position, moving the cursor to a SET current position, and setting the current to be 2A through a page up key and a page down key; pressing the 'SET' key again, exiting the voltage and current setting mode, the cursor disappears, rotating the 'FUNCTION' to the display screen to display the 'SAVE DATA Press < OK > Enter' and pressing the 'OK' key, at this time, the setting parameter 5V2A is stored in the memory in the device, pressing the 'OK' key, the device outputs 5V voltage at the 'Output' terminal. At this moment, the equipment charges the mobile power supply and displays parameters such as input voltage, current and power.

The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.