阅读说明：本技术 电源控制器启动控制系统 (Power supply controller start control system ) 是由 周波 吴建军 朗代志 周斌 康海东 潘成丽 于 2021-08-25 设计创作，主要内容包括：本发明提供的一种电源控制器启动控制系统,包括输入电路、储能检测电路、控制电路以及开关电路；所述输入电路,用于将直流电进行稳压处理并输出；所述储能检测电路,其输入端连接于输入电路的输出端,用于接收输入电路的直流电并进行储能至设定电压,并向控制电路输出电压检测信号；所述开关电路,其电源端连接于输入电路的输出端,其控制端接收控制电路输出的控制信号并根据控制信号导通将直流电输出至电源控制器；所述控制电路,用于接收储能检测电路输出的电压检测信号并根据电压检测信号控制开关电路导通；通过上述结构,能够为矿用中的AC-DC电源的控制器提供稳定可靠的直流电,能够确保AC-DC电源的控制器启动的可靠性以及启动后的工作稳定性,而且整个电路结构简单,成本低廉。(The invention provides a power supply controller start control system, which comprises an input circuit, an energy storage detection circuit, a control circuit and a switch circuit, wherein the input circuit is connected with the input circuit; the input circuit is used for carrying out voltage stabilization treatment on the direct current and outputting the direct current; the input end of the energy storage detection circuit is connected with the output end of the input circuit and is used for receiving the direct current of the input circuit, storing energy to a set voltage and outputting a voltage detection signal to the control circuit; the power end of the switch circuit is connected with the output end of the input circuit, and the control end of the switch circuit receives the control signal output by the control circuit and conducts and outputs direct current to the power controller according to the control signal; the control circuit is used for receiving the voltage detection signal output by the energy storage detection circuit and controlling the switch circuit to be switched on according to the voltage detection signal; through the structure, stable and reliable direct current can be provided for the controller of the AC-DC power supply in mines, the starting reliability and the working stability after starting of the controller of the AC-DC power supply can be ensured, and the whole circuit is simple in structure and low in cost.)

1. A power controller start-up control system is characterized in that: the energy storage detection circuit comprises an input circuit, an energy storage detection circuit, a control circuit and a switch circuit;

the input circuit is used for carrying out voltage stabilization treatment on the direct current and outputting the direct current;

the input end of the energy storage detection circuit is connected with the output end of the input circuit and is used for receiving the direct current of the input circuit, storing energy to a set voltage and outputting a voltage detection signal to the control circuit;

the power end of the switch circuit is connected with the output end of the input circuit, and the control end of the switch circuit receives the control signal output by the control circuit and conducts and outputs direct current to the power controller according to the control signal;

and the control circuit is used for receiving the voltage detection signal output by the energy storage detection circuit and controlling the switch circuit to be switched on according to the voltage detection signal.

2. The power supply controller start-up control system according to claim 1, characterized in that: the input circuit comprises a resistor R1, a resistor R2, an NMOS tube Q1, a diode D1 and a voltage regulator tube ZD 1;

the positive electrode of the diode D1 is used as the input end of the input circuit, the negative electrode of the diode D1 is connected to the drain electrode of the NMOS tube Q1 through the resistor R2, the negative electrode of the diode D1 is connected to the grid electrode of the NMOS tube Q1 through the resistor R1, the grid electrode of the NMOS tube Q1 is connected to the negative electrode of the voltage regulator tube ZD1, the positive electrode of the voltage regulator tube ZD1 is grounded, and the source electrode of the NMOS tube Q1 is used as the output end of the input circuit.

3. The power supply controller start-up control system according to claim 2, characterized in that: the input circuit further comprises a current limiting circuit, wherein the current limiting circuit comprises a resistor R3 and a triode Q2;

the collector of the transistor Q2 is connected to the gate of the NMOS transistor Q1, the emitter of the transistor Q2 is connected to the input terminal of the energy storage detection circuit, one end of the resistor R3 is connected to the source of the NMOS transistor Q1, and the other end of the resistor R3 is used as the output terminal of the input circuit.

4. The power supply controller start-up control system according to claim 1, characterized in that: the energy storage detection circuit comprises a resistor R5, a resistor R6 and a capacitor C3;

one end of the capacitor C3 is connected with one end of the resistor R5, the other end of the capacitor C3 is grounded, the other end of the resistor R5 is grounded through a resistor R4, a common connection point between the resistor R5 and the capacitor C3 serves as an input end of the energy storage detection circuit, and a common connection point between the resistor R4 and the resistor R5 serves as an output end of the energy storage detection circuit.

5. The power supply controller start-up control system according to claim 4, characterized in that: the tank detection circuit further comprises a capacitor C4;

one end of the capacitor C4 is connected to the common connection point between the resistor R4 and the resistor R5, and the other end of the capacitor C4 is grounded.

6. The power supply controller start-up control system according to claim 1, characterized in that: the switch circuit comprises a triode Q4, a diode D4, a capacitor C6, a resistor R10, a resistor R11, a voltage regulator tube ZD2 and a diode D2;

the triode Q4 is a P-type triode, an emitter of the triode Q4 serves as an input end of the switch circuit, a collector of the triode Q4 is connected with an anode of the diode D4, a cathode of the diode D4 is grounded through a capacitor C6, a common connection point between the capacitor C6 and the diode D4 serves as an output end of the switch circuit, an emitter of the triode Q4 is connected with a base of the triode Q4 through a resistor R10, a base of the triode Q4 is connected with a cathode of a voltage stabilizing tube ZD2 through the resistor R11, an anode of the voltage stabilizing tube 2 is connected with an anode of the diode D2, and a cathode of the diode D2 serves as a control end of the switch circuit.

7. The power supply controller start-up control system according to claim 1, characterized in that: the control circuit comprises a control chip U1, a resistor R9 and a capacitor C5;

the control chip U1 is a PPS3701 chip;

one end of the resistor R9 is connected to the output end of the input circuit, the other end of the resistor R9 is grounded through the capacitor C5, a common connection point between the resistor R9 and the capacitor C5 is connected to the 5 pin of the control chip U1, the 4 pin and the 3 pin of the control chip U1 are used as the input end of the control circuit to receive a voltage detection signal output by the energy storage detection circuit, the 2 pin of the control chip U1 is grounded, and the 6 pin of the control chip U1 is used as the control output end of the control circuit to be connected to the control end of the switch circuit.

8. The power supply controller start-up control system according to claim 7, characterized in that: the control circuit further comprises a resistor R6, a resistor R8, a resistor R7, a PMOS tube Q3 and a diode D3;

one end of the resistor R6 is connected to the source of the PMOS tube Q3, the other end of the resistor R6 is connected to the anode of the diode D3 through the resistor R8, the cathode of the diode D3 is connected to the 6 pins of the control chip, the common connection point between the resistor R6 and the resistor R8 is connected to the gate of the PMOS tube Q3, the source of the PMOS tube Q3 is connected to the output end of the input circuit, and the drain of the PMOS tube Q3 is connected to the 4 pins of the control chip U1 through the resistor R7.

Technical Field

The invention relates to a power supply control system, in particular to a power supply controller starting control system.

Background

In a mining power supply, an ACDC power supply needs to be adopted for conversion, so that working power consumption is provided for a direct-current load, and when the ACDC power supply is processed, stable and reliable low-voltage direct current needs to be provided for a controller in the ACDC power supply, so that stable and reliable work of the whole ACDC power supply is ensured.

Therefore, in order to solve the above technical problems, it is necessary to provide a new technical means.

Disclosure of Invention

In view of this, an object of the present invention is to provide a power controller start control system, which can provide stable and reliable direct current for a controller of an AC-DC power supply in a mine, can ensure the reliability of start-up and the working stability of the controller of the AC-DC power supply after start-up, and has a simple whole circuit structure and low cost.

The invention provides a power supply controller start control system, which comprises an input circuit, an energy storage detection circuit, a control circuit and a switch circuit, wherein the input circuit is connected with the input circuit;

the input circuit is used for carrying out voltage stabilization treatment on the direct current and outputting the direct current;

the input end of the energy storage detection circuit is connected with the output end of the input circuit and is used for receiving the direct current of the input circuit, storing energy to a set voltage and outputting a voltage detection signal to the control circuit;

the power end of the switch circuit is connected with the output end of the input circuit, and the control end of the switch circuit receives the control signal output by the control circuit and conducts and outputs direct current to the power controller according to the control signal;

and the control circuit is used for receiving the voltage detection signal output by the energy storage detection circuit and controlling the switch circuit to be switched on according to the voltage detection signal.

Further, the input circuit comprises a resistor R1, a resistor R2, an NMOS tube Q1, a diode D1 and a voltage regulator tube ZD 1;

the positive electrode of the diode D1 is used as the input end of the input circuit, the negative electrode of the diode D1 is connected to the drain electrode of the NMOS tube Q1 through the resistor R2, the negative electrode of the diode D1 is connected to the grid electrode of the NMOS tube Q1 through the resistor R1, the grid electrode of the NMOS tube Q1 is connected to the negative electrode of the voltage regulator tube ZD1, the positive electrode of the voltage regulator tube ZD1 is grounded, and the source electrode of the NMOS tube Q1 is used as the output end of the input circuit.

Further, the input circuit further comprises a current limiting circuit, wherein the current limiting circuit comprises a resistor R3 and a transistor Q2;

the collector of the transistor Q2 is connected to the gate of the NMOS transistor Q1, the emitter of the transistor Q2 is connected to the input terminal of the energy storage detection circuit, one end of the resistor R3 is connected to the source of the NMOS transistor Q1, and the other end of the resistor R3 is used as the output terminal of the input circuit.

Further, the energy storage detection circuit comprises a resistor R5, a resistor R6 and a capacitor C3;

one end of the capacitor C3 is connected with one end of the resistor R5, the other end of the capacitor C3 is grounded, the other end of the resistor R5 is grounded through a resistor R4, a common connection point between the resistor R5 and the capacitor C3 serves as an input end of the energy storage detection circuit, and a common connection point between the resistor R4 and the resistor R5 serves as an output end of the energy storage detection circuit.

Further, the tank detection circuit further comprises a capacitor C4;

one end of the capacitor C4 is connected to the common connection point between the resistor R4 and the resistor R5, and the other end of the capacitor C4 is grounded.

Further, the switch circuit comprises a triode Q4, a diode D4, a capacitor C6, a resistor R10, a resistor R11, a voltage regulator ZD2 and a diode D2;

the triode Q4 is a P-type triode, an emitter of the triode Q4 serves as an input end of the switch circuit, a collector of the triode Q4 is connected with an anode of the diode D4, a cathode of the diode D4 is grounded through a capacitor C6, a common connection point between the capacitor C6 and the diode D4 serves as an output end of the switch circuit, an emitter of the triode Q4 is connected with a base of the triode Q4 through a resistor R10, a base of the triode Q4 is connected with a cathode of a voltage stabilizing tube ZD2 through the resistor R11, an anode of the voltage stabilizing tube 2 is connected with an anode of the diode D2, and a cathode of the diode D2 serves as a control end of the switch circuit.

Further, the control circuit comprises a control chip U1, a resistor R9 and a capacitor C5;

the control chip U1 is a PPS3701 chip;

one end of the resistor R9 is connected to the output end of the input circuit, the other end of the resistor R9 is grounded through the capacitor C5, a common connection point between the resistor R9 and the capacitor C5 is connected to the 5 pin of the control chip U1, the 4 pin and the 3 pin of the control chip U1 are used as the input end of the control circuit to receive a voltage detection signal output by the energy storage detection circuit, the 2 pin of the control chip U1 is grounded, and the 6 pin of the control chip U1 is used as the control output end of the control circuit to be connected to the control end of the switch circuit.

Further, the control circuit further comprises a resistor R6, a resistor R8, a resistor R7, a PMOS tube Q3 and a diode D3;

one end of the resistor R6 is connected to the source of the PMOS tube Q3, the other end of the resistor R6 is connected to the anode of the diode D3 through the resistor R8, the cathode of the diode D3 is connected to the 6 pins of the control chip, the common connection point between the resistor R6 and the resistor R8 is connected to the gate of the PMOS tube Q3, the source of the PMOS tube Q3 is connected to the output end of the input circuit, and the drain of the PMOS tube Q3 is connected to the 4 pins of the control chip U1 through the resistor R7.

The invention has the beneficial effects that: the invention can provide stable and reliable direct current for the controller of the AC-DC power supply in the mine, can ensure the starting reliability and the working stability of the controller of the AC-DC power supply after starting, and has simple structure and low cost of the whole circuit.

Drawings

The invention is further described below with reference to the following figures and examples:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic circuit diagram of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings of the specification:

the invention provides a power supply controller start control system, which comprises an input circuit, an energy storage detection circuit, a control circuit and a switch circuit, wherein the input circuit is connected with the input circuit;

the input circuit is used for carrying out voltage stabilization treatment on the direct current and outputting the direct current;

the input end of the energy storage detection circuit is connected with the output end of the input circuit and is used for receiving the direct current of the input circuit, storing energy to a set voltage and outputting a voltage detection signal to the control circuit;

the power end of the switch circuit is connected with the output end of the input circuit, and the control end of the switch circuit receives the control signal output by the control circuit and conducts and outputs direct current to the power controller according to the control signal;

the control circuit is used for receiving the voltage detection signal output by the energy storage detection circuit and controlling the switch circuit to be switched on according to the voltage detection signal; through the structure, stable and reliable direct current can be provided for the controller of the AC-DC power supply in mines, the starting reliability and the working stability after starting of the controller of the AC-DC power supply can be ensured, and the whole circuit is simple in structure and low in cost.

In this embodiment, the input circuit includes a resistor R1, a resistor R2, an NMOS transistor Q1, a diode D1, and a zener diode ZD 1;

the positive electrode of the diode D1 is used as the input end of the transmission circuit, the negative electrode of the diode D1 is connected with the drain electrode of the NMOS tube Q1 through the resistor R2, the negative electrode of the diode D1 is connected with the grid electrode of the NMOS tube Q1 through the resistor R1, the grid electrode of the NMOS tube Q1 is connected with the negative electrode of the voltage regulator tube ZD1, the positive electrode of the voltage regulator tube ZD1 is grounded, and the source electrode of the NMOS tube Q1 is used as the output end of the input circuit.

The input circuit further comprises a current limiting circuit, wherein the current limiting circuit comprises a resistor R3 and a triode Q2;

the collector of the transistor Q2 is connected to the gate of the NMOS transistor Q1, the emitter of the transistor Q2 is connected to the input terminal of the energy storage detection circuit, one end of the resistor R3 is connected to the source of the NMOS transistor Q1, and the other end of the resistor R3 is used as the output terminal of the input circuit. After direct current is input, the grid voltage of the NMOS tube Q1 is gradually increased, when the grid voltage is increased to a set value, the NMOS tube is conducted, so that direct current is output, when the current is overlarge, the voltage of the upper end (the end connected with the source electrode of the NMOS tube) of the resistor R3 is increased, so that the triode Q2 is conducted, the grid voltage of the NMOS tube Q1 is reduced, the NMOS tube is in a state of tending to cut off (not completely cut off), the current is reduced, and a good current-limiting protection effect is formed. The input end of the input circuit is also provided with a voltage division circuit consisting of a capacitor, and the front-end circuit (a circuit for converting alternating current into direct current) is subjected to good voltage limitation and voltage division, so that the protection effect is achieved.

In this embodiment, the tank detection circuit includes a resistor R5, a resistor R6, and a capacitor C3;

one end of the capacitor C3 is connected with one end of the resistor R5, the other end of the capacitor C3 is grounded, the other end of the resistor R5 is grounded through the resistor R4, a common connection point between the resistor R5 and the capacitor C3 serves as an input end of the energy storage detection circuit, a common connection point between the resistor R4 and the resistor R5 serves as an output end of the energy storage detection circuit, through the structure, the capacitor C3 plays roles of delaying time and storing and stabilizing voltage so as to provide stable direct current for a subsequent circuit, and the resistor R5 and the resistor R4 form voltage division detection for detecting the terminal voltage of the capacitor C3 and inputting the terminal voltage into the subsequent control circuit

Wherein the tank detection circuit further comprises a capacitor C4;

one end of the capacitor C4 is connected to a common connection point between the resistor R4 and the resistor R5, and the other end of the capacitor C4 is grounded.

In this embodiment, the switch circuit includes a transistor Q4, a diode D4, a capacitor C6, a resistor R10, a resistor R11, a voltage regulator ZD2, and a diode D2;

the triode Q4 is a P-type triode, an emitter of the triode Q4 serves as an input end of the switch circuit, a collector of the triode Q4 is connected with an anode of the diode D4, a cathode of the diode D4 is grounded through a capacitor C6, a common connection point between the capacitor C6 and the diode D4 serves as an output end of the switch circuit, an emitter of the triode Q4 is connected with a base of the triode Q4 through a resistor R10, a base of the triode Q4 is connected with a cathode of a voltage stabilizing tube ZD2 through the resistor R11, an anode of the voltage stabilizing tube 2 is connected with an anode of the diode D2, and a cathode of the diode D2 serves as a control end of the switch circuit.

The control circuit comprises a control chip U1, a resistor R9 and a capacitor C5;

the control chip U1 is a PPS3701 chip;

one end of the resistor R9 is connected to the output end of the input circuit, the other end of the resistor R9 is grounded through the capacitor C5, a common connection point between the resistor R9 and the capacitor C5 is connected to the 5 pin of the control chip U1, the 4 pin and the 3 pin of the control chip U1 are used as the input end of the control circuit to receive a voltage detection signal output by the energy storage detection circuit, the 2 pin of the control chip U1 is grounded, and the 6 pin of the control chip U1 is used as the control output end of the control circuit to be connected to the control end of the switch circuit. The resistor R5 and the resistor R4 detect the terminal voltage of the capacitor C3, when the terminal voltage is input to the pin 3 and the pin 4 of the control chip U1, the control chip U1 judges whether the current voltage is larger than a set voltage value, if not, the pin 6 outputs a high level signal, the triode Q4 does not act and is in a cut-off state; if yes, a low level signal is output through pin 6, so that the base voltage of the transistor Q4 is pulled down, the transistor Q4 is made to be conductive, and power is supplied to a control chip of a subsequent AC-DC power supply.

In this embodiment, the control circuit further includes a resistor R6, a resistor R8, a resistor R7, a PMOS transistor Q3, and a diode D3;

one end of the resistor R6 is connected to the source of the PMOS tube Q3, the other end of the resistor R6 is connected to the anode of the diode D3 through the resistor R8, the cathode of the diode D3 is connected to the 6 pins of the control chip, the common connection point between the resistor R6 and the resistor R8 is connected to the gate of the PMOS tube Q3, the source of the PMOS tube Q3 is connected to the output end of the input circuit, the drain of the PMOS tube Q3 is connected to the 4 pins of the control chip U1 through the resistor R7, the circuit forms a self-return circuit, under the above structure, when the capacitor C3 is in the charging energy storage state, the 6 pin of the control chip U1 is set to high level, the PMOS tube Q3 is off, after the 6 pin of the control chip U1 outputs a low-level control signal, the triode Q4 is turned on, at this time, the voltage of the capacitor C3 also decreases with the turn-on of the Q4, so that the voltage input to the 4 pin and the 3 pin of the control chip U1 decreases, even the input voltage at the pin 4 and the pin 3 is lower than the set value, so that the triode Q4 is cut off again, and the subsequent control chip of the AC-DC power supply cannot be started reliably and work stably; therefore, when the 6 pin of the control chip U1 outputs a low level, the gate voltage of the PMOS transistor Q3 is pulled low, the PMOS transistor Q3 is turned on, and at this time, the resistor R7 and the capacitor R5 form a parallel structure, and the resistance value at this time is smaller than that of the original R5, so that the input voltages of the 4 pin and the 3 pin are maintained in a state larger than a set voltage value, and the transistor Q4 is ensured to be continuously turned on.

Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.