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CN-224205074-U - Trigger output circuit and driving device

CN224205074UCN 224205074 UCN224205074 UCN 224205074UCN-224205074-U

Abstract

The utility model discloses a trigger output circuit and a driving device. The trigger output circuit comprises a first input end of a comparison module for receiving a first voltage, a second input end of the comparison module for receiving a reference voltage, a switch module provided with a control end, an input end and an output end, wherein the output end of the comparison module is coupled with the control end of the switch module through an amplifying module, the input end of the switch module is coupled with a driving power supply, the output end of the switch module is coupled with the ground, the input end or the output end of the switch module is further coupled with an enabling end of an output control module, the comparison module is used for comparing the first voltage with the reference voltage, the amplifying module is used for controlling the switch module to be turned on or off, and the switch module is used for controlling the output control module to be turned on or off, wherein the first signal is output when the output control module is turned on, and the cost of the trigger output circuit is reduced by adopting the scheme.

Inventors

  • WANG YUNLAI
  • GE FEI
  • HU XIAOLEI

Assignees

  • 江西立讯智造有限公司

Dates

Publication Date
20260505
Application Date
20250415

Claims (10)

  1. 1. The trigger output circuit is characterized by comprising a comparison module, an amplifying module, a switch module and an output control module; The first input end of the comparison module is used for receiving a first voltage, and the second input end of the comparison module is used for receiving a reference voltage; The switch module is provided with a control end, an input end and an output end, the output end of the comparison module is coupled with the control end of the switch module through the amplifying module, the input end of the switch module is coupled with a driving power supply, the output end of the switch module is coupled with the ground, and the input end or the output end of the switch module is also coupled with the enabling end of the output control module; The comparison module is used for comparing the first voltage with the reference voltage, the amplification module is used for controlling the switch module to be turned on or off, and the switch module is used for controlling the output control module to be turned on or off, wherein the output control module outputs a first signal when being turned on.
  2. 2. The trigger output circuit of claim 1, wherein the input of the switch module is coupled to the driving power source via a first resistor when the input of the switch module is coupled to the enable of the output control module, and the enable of the output control module is coupled between the input of the switch module and the first resistor.
  3. 3. The trigger output circuit of claim 1, wherein the output of the switch module is coupled to ground through a first resistor when the output of the switch module is coupled to the enable of the output control module, the enable of the output control module being coupled between the output of the switch module and the first resistor.
  4. 4. The trigger output circuit of any one of claims 1 to 3, wherein the comparison module comprises a comparator and a second resistor; The first input end of the comparator is used for being connected with the first voltage, the second input end of the comparator is used for being connected with the reference voltage, the output end of the comparator is coupled with the amplifying module, the power supply end of the comparator is connected with the power supply voltage, the grounding end of the comparator is grounded, and the second resistor is coupled between the output end of the comparator and the power supply end; the amplifying module comprises an amplifier; The first input end of the amplifier is coupled with the output end of the comparator, the second input end of the amplifier is coupled with the output end of the amplifier, the output end of the amplifier is coupled with the control end of the switch module, the power supply end of the amplifier is connected with the power supply voltage, and the grounding end of the amplifier is grounded.
  5. 5. The trigger output circuit of any one of claims 1 to 3, further comprising a first voltage dividing resistor and a second voltage dividing resistor; The first end of the first voltage dividing resistor is connected with the amplifying module, the second end of the first voltage dividing resistor is connected with the first end of the second voltage dividing resistor, the second end of the second voltage dividing resistor is grounded, and the control end of the switch module is coupled between the first voltage dividing resistor and the second voltage dividing resistor.
  6. 6. The trigger output circuit of any one of claims 1-3, further comprising an input selection module; The first input end of the input selection module is used for being connected with a first external voltage, the second input end of the input selection module is used for being connected with a second external voltage, and the first input end of the comparison module is coupled with the input selection module; The input selection module is used for switching and receiving different voltage signals so that a first input end of the comparison module receives first voltages representing the different signals.
  7. 7. A trigger output circuit according to any one of claims 1 to 3, wherein the switch module is any one of a MOS transistor, a triode, and a thyristor.
  8. 8. A trigger output circuit according to any one of claims 1 to 3, wherein an input of the output control module is coupled to a first power supply, an output of the output control module is coupled to a lower device, and an enable of the output control module is coupled to the switch module; the output control module outputs the first signal when being conducted, wherein the first signal is a voltage signal and is used for supplying power to the lower-level equipment.
  9. 9. A trigger output circuit according to any one of claims 1 to 3, wherein an input of the output control module is coupled to a first power supply, an output of the output control module is coupled to a lower device, and an enable of the output control module is coupled to the switch module; The output control module outputs the first signal when being conducted, wherein the first signal is a control signal and is used for controlling the lower equipment to output voltage or controlling the lower equipment to change state.
  10. 10. A drive arrangement comprising a trigger output circuit as claimed in any one of claims 1 to 9.

Description

Trigger output circuit and driving device Technical Field The present utility model relates to the field of electronic technologies, and in particular, to a trigger output circuit and a driving device. Background The trigger output circuit is a circuit capable of generating corresponding output according to a specific trigger signal, and is widely applied to various electronic equipment and power supply systems. However, in the related art, a sensor device is often provided in the trigger output circuit, and trigger control is performed by a physical quantity such as a magnetic field, light, or temperature detected by the sensor device. The provision of the sensing device results in a relatively high cost of triggering the output circuit. Disclosure of utility model The utility model provides a trigger output circuit and a driving device, which are used for reducing the cost of the trigger output circuit. According to an aspect of the present utility model, there is provided a trigger output circuit including a comparison module, an amplification module, a switching module, and an output control module; The first input end of the comparison module is used for receiving a first voltage, and the second input end of the comparison module is used for receiving a reference voltage; The switch module is provided with a control end, an input end and an output end, the output end of the comparison module is coupled with the control end of the switch module through the amplifying module, the input end of the switch module is coupled with a driving power supply, the output end of the switch module is coupled with the ground, and the input end or the output end of the switch module is also coupled with the enabling end of the output control module; The comparison module is used for comparing the first voltage with the reference voltage, the amplification module is used for controlling the switch module to be turned on or off, and the switch module is used for controlling the output control module to be turned on or off, wherein the output control module outputs a first signal when being turned on. Optionally, when the input end of the switch module is coupled to the enable end of the output control module, the input end of the switch module is connected to the driving power supply through the first resistor, and the enable end of the output control module is coupled between the input end of the switch module and the first resistor. Optionally, when the output end of the switch module is coupled to the enable end of the output control module, the output end of the switch module is grounded through a first resistor, and the enable end of the output control module is coupled between the output end of the switch module and the first resistor. Optionally, the comparison module comprises a comparator and a second resistor; The first input end of the comparator is used for being connected with the first voltage, the second input end of the comparator is used for being connected with the reference voltage, the output end of the comparator is coupled with the amplifying module, the power supply end of the comparator is connected with the power supply voltage, the grounding end of the comparator is grounded, and the second resistor is coupled between the output end of the comparator and the power supply end; the amplifying module comprises an amplifier; The first input end of the amplifier is coupled with the output end of the comparator, the second input end of the amplifier is coupled with the output end of the amplifier, the output end of the amplifier is coupled with the control end of the switch module, the power supply end of the amplifier is connected with the power supply voltage, and the grounding end of the amplifier is grounded. Optionally, the trigger output circuit further comprises a first voltage dividing resistor and a second voltage dividing resistor; The first end of the first voltage dividing resistor is connected with the amplifying module, the second end of the first voltage dividing resistor is connected with the first end of the second voltage dividing resistor, the second end of the second voltage dividing resistor is grounded, and the control end of the switch module is coupled between the first voltage dividing resistor and the second voltage dividing resistor. Optionally, the trigger output circuit further comprises an input selection module; The first input end of the input selection module is used for being connected with a first external voltage, the second input end of the input selection module is used for being connected with a second external voltage, and the first input end of the comparison module is coupled with the input selection module; The input selection module is used for switching and receiving different voltage signals so that a first input end of the comparison module receives first voltages representing the different signals. Optionally, the switch module is any one of a MOS transi