CN-224203586-U - Signal switching circuit and energy storage power supply thereof

CN224203586UCN 224203586 UCN224203586 UCN 224203586UCN-224203586-U

Abstract

The embodiment of the utility model discloses a signal switching circuit and an energy storage power supply thereof. The signal switching circuit comprises a first switch module, a second switch module, a signal processing module, a voltage regulating module and a control module, wherein the first switch module is provided with a plurality of output ends and can be switched to different states to output different combined signals, the second switch module is configured to control a power supply path of a test board, a feedback path of a power supply board and a signal path according to the output signals of the first switch module, the signal processing module is connected between the first switch module and the second switch module, the voltage regulating module is connected with the second switch module and is configured to output voltage feedback signals, and the control module is configured to control the state of a relay group of the second switch module. According to the embodiment of the utility model, a plurality of combined signals are output through the single first switch module, so that the control of the power supply paths and the signal paths of a plurality of groups of test boards and the adjustment of the feedback paths and the power supply voltage of the power panel can be realized, the number of required switches is reduced, the cost is reduced, the occupied area is reduced, and the mode switching operation is simplified.

Inventors

QIN GENG
MA HUI
LOU SHIYU
Tang Chaoken
WANG YUEFEI

Assignees

惠州市新明海科技有限公司

Dates

Publication Date: 20260505
Application Date: 20250521

Claims (10)

1. A signal switching circuit, comprising: the first switch module is provided with a plurality of output ends and can be switched to different states to output different combined signals; A second switch module configured to control a power path of the first group of test boards, a feedback path of the power board, a power path of the second group of test boards, and a signal path according to an output signal of the first switch module; The signal processing module is connected between the first switch module and the second switch module and is configured to control the on or off state of the second switch module according to the output signal of the first switch module; The voltage regulating module is connected with the second switch module and is configured to output a first voltage feedback signal according to a first combined signal or a second combined signal output by the first switch module so as to regulate the power supply voltage output by the power panel to the first group of test boards and the second group of test boards; The control module is connected with the first switch module, the signal processing module and the second switch module, and is configured to control the on or off state of at least one relay group of the second switch module according to a third combined signal output by the first switch module and output a second voltage feedback signal so as to regulate the power supply voltage.
2. The circuit of claim 1, further comprising an input port, an output port, a unidirectional conduction module, a pull-down lock module, and an unlock module, The input port is respectively connected with a first output end of the first switch module, the unlocking module and the unidirectional conduction module, the output port is respectively connected with a pull-up power supply, the pull-down locking module and the unidirectional conduction module, and the unlocking module is also connected with the pull-down locking module; the input port is used for receiving a first level signal, a second level signal or a suspension signal; The unidirectional conduction module is used for responding to the first level signal received by the input port, pulling down the voltage of the output port to a first level so as to enable the output port to output the first level signal, and transmitting the pull-up power supply to the input port so as to enable the input port to maintain the second level signal when the signal received by the input port is switched from the second level signal to the suspension signal; the unlocking module responds to the second level signal received by the input port and outputs an unlocking signal to the pull-down locking module; The pull-down lock module locks the output port at a first level signal in response to the first level signal output by the output port and closes in response to an unlock signal.
3. The circuit of claim 2, wherein the pull-down lock module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a switching tube Q2, and a switching tube Q3; The first end of the resistor R4 is connected with the output port, the pull-up power supply, the unidirectional conduction module and the drain electrode of the switch tube Q2, the second end of the resistor R4 is connected with the base electrode of the switch tube Q3, the emitter electrode of the switch tube Q3 is connected with the first end of the resistor R3, and the collector electrode of the switch tube Q3 is connected with the first end of the resistor R5, the first end of the resistor R6 and the unlocking module; The second end of the resistor R3 is connected with a first voltage source, the second end of the resistor R6 is connected with the grid electrode of the switch tube Q2, and the source electrode of the switch tube Q2 is connected with the second end of the resistor R5 to be grounded.
4. The circuit of claim 2, wherein the unlocking module comprises a zener diode ZD1, a resistor R2, a switching tube Q1, and a capacitor C1; The cathode of the zener diode ZD1 is connected with the input port, the unidirectional conduction module and the first end of the capacitor C1, the anode of the zener diode ZD1 is connected with the first end of the resistor R1, and the second end of the capacitor C1 is connected with the reference ground; The second end of the resistor R1 is connected with the first end of the resistor R2 and the grid electrode of the switch tube Q1, the drain electrode of the switch tube Q1 is connected with the pull-down locking module, and the source electrode of the switch tube Q1 is connected with the second end of the resistor R2 to be grounded.
5. The circuit of claim 2, wherein the second switching module comprises a first relay set, a second relay set, and a third relay set, the signal processing module comprises a first processing unit, a second processing unit, and a third processing unit, The first input end of the first processing unit is connected with the output port, the output end of the first processing unit is used for controlling the actuation state of the first relay group, and the first relay group is arranged on the power supply path of the first group of test boards; the input end of the second processing unit is connected with the second output end of the first switch module, the output end of the second processing unit is used for controlling the actuation state of the second relay group, and the second relay group is arranged on a power supply passage and a signal passage of the second group of test boards; The input end of the third processing unit is connected with the third output end of the first switch module, the output end of the third processing unit is used for controlling the actuation state of the third relay group, and the third relay group is arranged between the power panel and the voltage regulating module.
6. The circuit of claim 5, wherein the first relay group comprises relay RLY2 and relay RLY3, the first processing unit comprises inductor L1, capacitor C2, capacitor C3, capacitor C4, diode D2, diode D3, resistor R8, resistor R9, resistor R10, resistor R11, switching tube Q4, and switching tube Q5, The first end of the inductor L1 is connected with a first voltage source, the second end of the inductor L1 is connected with the first end of the capacitor C3, the first end of the capacitor C4, the first end of the resistor R9, the cathode of the diode D3, the first end of the coil of the relay rliy 2 and the first end of the coil of the relay rliy 3, the second end of the resistor R9 is connected with the first end of the resistor R11, the anode of the diode D2 and the collector of the switching tube Q4, the cathode of the diode D2 is connected with the output port, the base of the switching tube Q4 is connected with the first end of the resistor R10, the first end of the capacitor C2 and the first end of the resistor R8, and the second end of the resistor R8 is connected with the output end of the control module; The second end of the resistor R11 is connected with the base electrode of the switch tube Q5, the emitter electrode of the switch tube Q5 is connected with the anode electrode of the diode D3, the second end of the coil of the relay RLY2 and the second end of the coil of the relay RLY3, the second end of the capacitor C4, the second end of the capacitor C2, the second end of the resistor R10, the emitter electrode of the switch tube Q4 and the collector electrode of the switch tube Q5 are grounded.
7. The circuit of claim 5, wherein the second relay group includes a relay rle 1, a relay rle 4, and a relay rle 5, the second processing unit includes a capacitor C5, a capacitor C6, a diode D4, a switching tube Q6, a resistor R12, and a resistor R13, The first end of the resistor R12 is connected with the second output end of the first switch module, the second end of the resistor R12 is connected with the first end of the resistor R13, the first end of the capacitor C5 and the base of the switch tube Q6, the collector of the switch tube Q6 is connected with the anode of the diode D4, the first end of the coil of the relay rli 1, the first end of the coil of the relay rli 4 and the first end of the coil of the relay rli 5, the cathode of the diode D4 is connected with the first end of the capacitor C6, the second voltage source, the second end of the coil of the relay rli 1, the second end of the coil of the relay rli 4 and the second end of the coil of the relay rli 5, and the second end of the capacitor C6, the second end of the capacitor C5, the second end of the resistor R13 and the emitter of the switch tube Q6 are grounded.
8. The circuit of claim 5, wherein the third relay group comprises a relay RLY6, the third processing unit comprises a capacitor C7, a capacitor C8, a diode D5, a resistor R14, a resistor R15, and a switching tube Q7, The first end of the resistor R14 is connected with the third output end of the first switch module, the second end of the resistor R14 is connected with the first end of the capacitor C8, the first end of the resistor R15 and the base electrode of the switch tube Q7, the collector electrode of the switch tube Q7 is connected with the anode of the diode D5 and the first end of the coil of the relay RLY6, the cathode of the diode D5 is connected with the first end of the capacitor C7, the second voltage source and the second end of the coil of the relay RLY6, and the second end of the capacitor C7, the second end of the capacitor C8, the second end of the resistor R15 and the emitter of the switch tube Q7 are grounded.
9. The circuit of claim 1, wherein the voltage regulation module comprises a resistor R16, a potentiometer RP1, a capacitor C9, and a diode TVS1, The first end of the diode TVS1 is connected to the first end of the capacitor C9, the first end of the resistor R16, the first end of the potentiometer RP1, and the second switch module, the second end of the resistor R16 is connected to a second voltage source, and the second end of the diode TVS1, the second end of the capacitor C9, and the second end of the potentiometer are grounded.
10. An energy storage power supply, comprising: a signal switching circuit according to any one of claims 1 to 9.

Description

Signal switching circuit and energy storage power supply thereof Technical Field The embodiment of the utility model relates to the technical field of electronics, in particular to a signal switching circuit and an energy storage power supply thereof. Background Along with the development of society, the diversification of products is more and more obvious, the demands of people for different effects of the products are also increased, products integrating more effects and more modes are often favored by customers, an important problem, namely signal switching, is often involved in designing the products, in the prior art, one switch often controls switching of one signal, and the number of the switches required in mode switching is increased, so that the cost is higher, the occupied area is large, and the operation is also inconvenient. Disclosure of utility model The embodiment of the utility model mainly solves the technical problem of providing a signal switching circuit and an energy storage power supply thereof, and can solve at least part of defects of the existing signal switching circuit. In a first aspect, the embodiment of the utility model provides a signal switching circuit, which comprises a first switch module, a second switch module, a control module, a signal processing module, a voltage regulating module and a control module, wherein the first switch module is provided with a plurality of output ends, the first switch module can be switched to different states to output different combined signals, the second switch module is configured to control a power supply path of a first group of test boards, a feedback path of a power supply board, a power supply path of a second group of test boards and a signal path according to the output signals of the first switch module, the signal processing module is connected between the first switch module and the second switch module and is configured to control the on-off state of the second switch module according to the output signals of the first switch module, the voltage regulating module is connected with the second switch module and is configured to output a first voltage feedback signal according to the first combined signals or the second combined signals output by the first switch module so as to regulate the power supply voltage of the power supply board to the first group of test boards and the second group of test boards, the control module is connected with the first switch module, the signal processing module and the second switch module is configured to control the on-off state of the second switch module according to the output signals of the first switch module. Optionally, the signal switching circuit further comprises an input port, an output port, a unidirectional conduction module, a pull-down locking module and an unlocking module, wherein the input port is respectively connected with the first output end of the first switch module, the unlocking module and the unidirectional conduction module, the output port is respectively connected with a pull-up power supply, the pull-down locking module and the unidirectional conduction module, the unlocking module is also connected with the pull-down locking module, the input port is used for receiving a first level signal, a second level signal or a suspension signal, the unidirectional conduction module is conducted in response to the first level signal received by the input port, the voltage of the output port is pulled down to a first level signal so that the output port outputs the first level signal, when the signal received by the input port is switched to the suspension signal by the second level signal, the pull-up power supply is transmitted to the input port so that the second level signal is maintained by the input port, the unlocking module is used for receiving the first level signal, the unlocking module is turned off in response to the pull-down locking module, and the output port is turned off in response to the first level signal. Optionally, the pull-down lock module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a switch tube Q2 and a switch tube Q3, wherein the first end of the resistor R4 is connected with the output port, the pull-up power supply, the unidirectional conduction module and the drain electrode of the switch tube Q2, the second end of the resistor R4 is connected with the base electrode of the switch tube Q3, the emitter electrode of the switch tube Q3 is connected with the first end of the resistor R3, and the collector electrode of the switch tube Q3 is connected with the first end of the resistor R5, the first end of the resistor R6 and the unlocking module; The second end of the resistor R3 is connected with a first voltage source, the second end of the resistor R6 is connected with the grid electrode of the switch tube Q2, and the source electrode of the switch tube Q2 is connected with the second end of the resistor R5 to be gr