CN209282925U - A kind of driving circuit for automatic transfer switching electric appliance controller - Google Patents
A kind of driving circuit for automatic transfer switching electric appliance controller Download PDFInfo
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- CN209282925U CN209282925U CN201822185789.9U CN201822185789U CN209282925U CN 209282925 U CN209282925 U CN 209282925U CN 201822185789 U CN201822185789 U CN 201822185789U CN 209282925 U CN209282925 U CN 209282925U
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Abstract
The utility model discloses a kind of driving circuits for automatic transfer switching electric appliance controller, including driving unit and low-voltage variation unit；The driving unit includes resistance R1~R4, capacitor C1~C3, triode Q1~Q2, diode D1~D3 and bistable relay；Low-voltage variation unit connects in driving signal output end；The driving circuit structure for being used for automatic transfer switching electric appliance controller is simple, and the power supply that a small amount of capacitor is not used only as shutdown transient supports, and (director demon, which is run, to fly) can start generator circuit in the limiting case.
Description
Technical field
The utility model relates to low voltage electrical apparatus technology fields, in particular to a kind of to be used for automatic transfer switching electric appliance controller
Driving circuit.
Background technique
According to country for the standard requirements of automatic transfer switching electric appliance, automatic transfer switching electric appliance is divided into alternating current-alternating current
Mode and alternating current-generator mode.The latter refers to that two-way input power, a routing power grid is sent, and in addition a routing is local
Diesel-driven generator issue.Due to diesel generation, it is usually being in stand-by state, and do not work operation, so needing from turn
Device for switching is changed when first via abnormity of power supply, issues generator enabling signal.Due to breaking down in first via power supply
When, the power supply of the controller of automatic transfer switching electric appliance disappears, it is therefore desirable to which automatic transfer switching electric appliance is extremely short
Time in find power failure, and drive the actuating of relay.
The generator start-up circuit of traditional automatic transfer switching electric appliance controller needs many capacitors, as the first via
The source of the power supply for the moment that power supply breaks down.Not only make controller increased costs, but also causes the increase of volume.And
And if the reaction speed of controller is slow, it is possible to cause not judge abnormity of power supply also, controller is just because of electricity
It presses through low and can not work.
Utility model content
The purpose of the utility model is to provide a kind of driving circuits for automatic transfer switching electric appliance controller.
For this purpose, technical solutions of the utility model are as follows:
A kind of driving circuit for automatic transfer switching electric appliance controller, driving unit and low-voltage variation unit；It is described
Driving unit include resistance R1~R4, capacitor C1~C3, triode Q1~Q2, diode D1~D3 and bistable relay；
Control signal input is connected to the base stage of triode Q1, the transmitting collection ground connection of triode Q1, electricity by resistance R1
Resistance R2 is arranged between the base stage and emitter of triode Q1, and capacitor C1 is connected in parallel on the both ends of resistance R2；The transmitting of triode Q1
Pole is connected to the anode of diode D1, diode D1 be arranged in the pull-up control coil of bistable relay two input terminals it
Between；Reference voltage connects the cathode of diode D1 by diode D3；The anode of capacitor C1 connects the cathode of diode D1；
Driving signal input is connected to the base stage of triode Q2, the transmitting collection ground connection of triode Q2, electricity by resistance R4
Resistance R3 is arranged between the base stage and emitter of triode Q2, and capacitor C2 is connected in parallel on the both ends of resistance R3；The transmitting of triode Q2
Pole is connected to the anode of diode D2, diode D2 be arranged in the pull-up control coil of bistable relay two input terminals it
Between；The cathode of diode D2 connects reference voltage；
Low-voltage variation unit connects in driving signal output end.
Further, the low-voltage variation unit includes power monitoring chip U1, diode D4, resistance R5, capacitor C6
~C7；The VCC pin of power monitoring chip U1 connects the cathode of diode D4, and the anode of diode D4 connects+3.3V reference voltage；Electricity
Resistance R5 is arranged between the VCC pin and GND pin of power monitoring chip U1, and capacitor C6 and capacitor C7 are connected in parallel on resistance R5's
Both ends；The RESET pin of power monitoring chip U1 connects the driving signal output end of driving unit.
Compared with prior art, this be used for automatic transfer switching electric appliance controller driving circuit structure it is simple, not only make
The power supply for using a small amount of capacitor as shutdown transient supports, and (director demon, which is run, to fly) starting can send out in the limiting case
Motor circuit.
Detailed description of the invention
Fig. 1 is generator drive circuit relay drive part schematic diagram provided by the utility model.
Fig. 2 is generator drive circuit under-voltage protection partial schematic diagram.
Specific embodiment
With reference to the accompanying drawing and specific embodiment is described further the utility model, but following embodiments are right absolutely not
The utility model has any restrictions.
A kind of driving circuit for automatic transfer switching electric appliance controller, as shown in Figure 1, driving unit and low-voltage variation
Unit；The driving unit includes resistance R1~R4, capacitor C1~C3, triode Q1~Q2, diode D1~D3 and bistable
State relay；
Control signal input is connected to the base stage of triode Q1, the transmitting collection ground connection of triode Q1, electricity by resistance R1
Resistance R2 is arranged between the base stage and emitter of triode Q1, and capacitor C1 is connected in parallel on the both ends of resistance R2；The transmitting of triode Q1
Pole is connected to the anode of diode D1, diode D1 be arranged in the pull-up control coil of bistable relay two input terminals it
Between；Reference voltage connects the cathode of diode D1 by diode D3；The anode of capacitor C1 connects the cathode of diode D1；
Driving signal input is connected to the base stage of triode Q2, the transmitting collection ground connection of triode Q2, electricity by resistance R4
Resistance R3 is arranged between the base stage and emitter of triode Q2, and capacitor C2 is connected in parallel on the both ends of resistance R3；The transmitting of triode Q2
Pole is connected to the anode of diode D2, diode D2 be arranged in the pull-up control coil of bistable relay two input terminals it
Between；The cathode of diode D2 connects reference voltage；Low-voltage variation unit connects in driving signal output end.
As shown in Fig. 2, the low-voltage variation unit includes power monitoring chip U1, diode D4, resistance R5, capacitor C6
~C7；The VCC pin of power monitoring chip U1 connects the cathode of diode D4, and the anode of diode D4 connects+3.3V reference voltage；Electricity
Resistance R5 is arranged between the VCC pin and GND pin of power monitoring chip U1, and capacitor C6 and capacitor C7 are connected in parallel on resistance R5's
Both ends；The RESET pin of power monitoring chip U1 connects the driving signal output end of driving unit.
The course of work for being used for the driving circuit of automatic transfer switching electric appliance controller is as follows: when network voltage is normal
When, 12V power supply is normal, is charged by diode D3 to capacitor C3, and it is dynamic to make it have enough energy driving relay coils
Make.Control signal end mouth generator_on issues pulse high level at this time, and bistable relay is maintained at attracting state.
3.3V voltage is charged by diode D4 to capacitor C6 and capacitor C7, since this power monitoring chip is backward voltage
Output, so driving signal output end generator_off port level is low level, bistable relay is maintained at actuation shape
State.
When decompression exception occurs in first via power supply, the supply voltage of controller disappears, due to the effect of capacitor, control
Operating voltage inside device processed is gradually reduced, when threshold voltage of the operating voltage down to power monitoring chip U1, power supply
Monitoring chip U1 exports driving signal output end generator_off port level for high level, due to storing in capacitor C3
Corresponding energy, so bistable relay is enabled to be maintained at release conditions.
When first via power supply occurs disconnected mutually abnormal, the power supply of controller does not disappear, at this time can be by MCU core
Piece control bistable relay keeps it in release conditions.
Can be in the case where first via abnormity of power supply by the above method, normal use generator startup function is realized
The optimization of cost and structure.
Claims (2)
1. a kind of driving circuit for automatic transfer switching electric appliance controller, which is characterized in that driving unit and low-voltage variation
Unit；The driving unit includes resistance R1~R4, capacitor C1~C3, triode Q1~Q2, diode D1~D3 and bistable
State relay；
Control signal input is connected to the base stage of triode Q1, the transmitting collection ground connection of triode Q1, resistance R2 by resistance R1
It is arranged between the base stage and emitter of triode Q1, capacitor C1 is connected in parallel on the both ends of resistance R2；The emitter of triode Q1 connects
It is connected to the anode of diode D1, diode D1 is arranged between two input terminals of pull-up control coil of bistable relay；
Reference voltage connects the cathode of diode D1 by diode D3；The anode of capacitor C1 connects the cathode of diode D1；
Driving signal input is connected to the base stage of triode Q2, the transmitting collection ground connection of triode Q2, resistance R3 by resistance R4
It is arranged between the base stage and emitter of triode Q2, capacitor C2 is connected in parallel on the both ends of resistance R3；The emitter of triode Q2 connects
It is connected to the anode of diode D2, diode D2 is arranged between two input terminals of pull-up control coil of bistable relay；
The cathode of diode D2 connects reference voltage；
Low-voltage variation unit connects in driving signal output end.
2. the driving circuit according to claim 1 for automatic transfer switching electric appliance controller, which is characterized in that described
Low-voltage variation unit include power monitoring chip U1, diode D4, resistance R5, capacitor C6~C7；Power monitoring chip U1's
VCC pin connects the cathode of diode D4, and the anode of diode D4 connects+3.3V reference voltage；Resistance R5 is arranged in Power Supply Monitoring core
Between the VCC pin and GND pin of piece U1, capacitor C6 and capacitor C7 are connected in parallel on the both ends of resistance R5；Power monitoring chip U1
RESET pin connect the driving signal output end of driving unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185789.9U CN209282925U (en) | 2018-12-25 | 2018-12-25 | A kind of driving circuit for automatic transfer switching electric appliance controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185789.9U CN209282925U (en) | 2018-12-25 | 2018-12-25 | A kind of driving circuit for automatic transfer switching electric appliance controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282925U true CN209282925U (en) | 2019-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822185789.9U Active CN209282925U (en) | 2018-12-25 | 2018-12-25 | A kind of driving circuit for automatic transfer switching electric appliance controller |
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| CN (1) | CN209282925U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570642A (en) * | 2019-09-04 | 2019-12-13 | 航宇救生装备有限公司 | power supply on-off control circuit and control method for remote control system |
-
2018
- 2018-12-25 CN CN201822185789.9U patent/CN209282925U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110570642A (en) * | 2019-09-04 | 2019-12-13 | 航宇救生装备有限公司 | power supply on-off control circuit and control method for remote control system |
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