CN204481565U - A kind of two-way power transfer device being applicable to mother controller - Google Patents
A kind of two-way power transfer device being applicable to mother controller Download PDFInfo
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- CN204481565U CN204481565U CN201520102417.9U CN201520102417U CN204481565U CN 204481565 U CN204481565 U CN 204481565U CN 201520102417 U CN201520102417 U CN 201520102417U CN 204481565 U CN204481565 U CN 204481565U
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Abstract
The utility model provides a kind of two-way power transfer device being applicable to mother controller, comprises two-way electrical source exchange drive circuit, transformer change-over circuit, controls power supply input circuit, isolated drive circuit.The utility model compared with prior art, the beneficial effect produced is: owing to have employed 2 solid state relays and software control logic, achieve: if two-way power supply after a road power failure and another road power supply is normal time, electrical source exchange is to that road of normal power source; If when two-way power supply all breaks down, electrical source exchange is to closer to normal power voltage Na mono-tunnel; If two-way power supply is all normal, power supply does not switch.The power supply achieving mother controller normally provides, and ensures that product is reliable and stable.
Description
Technical field
The utility model relates to a kind of power-supply controller of electric, particularly a kind of two-way power transfer device being applicable to mother controller.
Background technology
Current electric power system many employings two-way electric supply system, when a road power failure, frame switch can be cut away, and by mother frame switch, another road power supply is sent into, to important load, also need emergency generator's unit to ensure to continue power supply, this generic operation all requires that the power supply of mother controller is by duplex feeding at present, ensure that mother controller is after any road power failure, also can normally work.
Summary of the invention
Technical assignment of the present utility model is for the deficiencies in the prior art, provides a kind of a kind of two-way power transfer device being applicable to mother controller that have employed the power transfer device that 2 solid state relays realize.
The utility model solves the technical scheme that its technical problem adopts:
Be applicable to a two-way power transfer device for mother controller, comprise two-way electrical source exchange drive circuit, transformer change-over circuit, control power supply input circuit, isolated drive circuit.Two-way electrical source exchange drive circuit comprises the first solid state relay, the second solid state relay and the first optical coupler; Two groups of normally opened contacts of the first solid state relay are connected to phase line and the neutral line two ends of first via power supply, two groups of normally-closed contacts of the first solid state relay are connected to phase line and the neutral line two ends of the second road power supply, two groups of common of the first solid state relay are connected to the two ends of the first transformer primary side, constitute the chain circuit of two-way power supply; Coil one end of first solid state relay is connected with the phase line of first via power supply, the coil other end of the first solid state relay is connected with the common of the second solid state relay, the normally opened contact of the second solid state relay is connected to the neutral line of first via power supply, coil one end of second solid state relay is connected with 5V, the coil other end of the second solid state relay is connected with output one end of the first optical coupler, the output other end of the first optical coupler is connected to 5V power supply ground, constitutes switch driving circuit; Transformer change-over circuit comprises the first transformer.The two ends of the first transformer primary side are connected to two groups of common of the first solid state relay, the input of the first rectifier bridge that the two ends of the first Circuit Fault on Secondary Transformer are connected to; Control power supply input circuit and comprise the first rectifier bridge and the first filter capacitor.The input of the first rectifier bridge is connected to the two ends of the first Circuit Fault on Secondary Transformer, and the first rectification bridge output end is connected to the first filter capacitor; Isolated drive circuit comprises the first optical coupler and the first resistance.Output one end of first optical coupler is connected with one end of the first resistance, and the output other end of the first optical coupler is connected with the ground of microprocessor, and the other end of the first resistance is connected with microprocessor.
Compared with prior art, the beneficial effect produced is the utility model:
Owing to have employed 2 solid state relays and software control logic, achieve: if two-way power supply after a road power failure and another road power supply is normal time, electrical source exchange is to that road of normal power source; If when two-way power supply all breaks down, electrical source exchange is to closer to normal power voltage Na mono-tunnel; If two-way power supply is all normal, power supply does not switch.The power supply achieving mother controller normally provides, and ensures that product is reliable and stable.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail below.
As shown in Figure 1, the utility model discloses a kind of two-way power transfer device being applicable to mother controller, comprise two-way electrical source exchange drive circuit 1, transformer change-over circuit 2, control power supply input circuit 3, isolated drive circuit 4; Two-way electrical source exchange drive circuit 1 comprises the first solid state relay, the second solid state relay and the first optical coupler.Two groups of normally opened contacts of the first solid state relay are connected to phase line and the neutral line two ends of first via power supply, two groups of normally-closed contacts of the first solid state relay are connected to phase line and the neutral line two ends of the second road power supply, two groups of common of the first solid state relay are connected to the two ends of the first transformer primary side, constitute the chain circuit of two-way power supply; Coil one end of first solid state relay is connected with the phase line of first via power supply, the coil other end of the first solid state relay is connected with the common of the second solid state relay, the normally opened contact of the second solid state relay is connected to the neutral line of first via power supply, coil one end of second solid state relay is connected with 5V, the coil other end of the second solid state relay is connected with output one end of the first optical coupler, the output other end of the first optical coupler is connected to 5V power supply ground, constitutes switch driving circuit; Transformer change-over circuit 2 comprises the first transformer.The two ends of the first transformer primary side are connected to two groups of common of the first solid state relay, the input of the first rectifier bridge that the two ends of the first Circuit Fault on Secondary Transformer are connected to; Control power supply input circuit 3 and comprise the first rectifier bridge and the first filter capacitor.The input of the first rectifier bridge is connected to the two ends of the first Circuit Fault on Secondary Transformer, and the first rectification bridge output end is connected to the first filter capacitor; Isolated drive circuit 4 comprises the first optical coupler and the first resistance.Output one end of first optical coupler is connected with one end of the first resistance, and the output other end of the first optical coupler is connected with the ground of microprocessor, and the other end of the first resistance is connected with microprocessor.
A kind of operation principle being applicable to the two-way power transfer device of mother controller of the present utility model is as follows:
As shown in Figure 1, switch on power, now microprocessor IC2 exports as Low level effective, the output of optical coupler U1 is high-impedance state, solid state relay K2 coil not electric disconnection, solid state relay K1 coil obtains electric adhesive, the normally opened contact of solid state relay K1 becomes normally off from normally open, the power supply of mother controller is provided to be switched to by the second road power supply and is provided by first via power supply, then transformer T1 is by supply voltage step-down, again after rectifier bridge B1 and filter capacitor E1 rectifying and wave-filtering, the power supply as DC/DC converter IC1 inputs.
Microprocessor IC2 detects two-way supply voltage situation in real time, if two-way power supply is all normal, power supply does not switch; If first via power failure, second road power supply is normal, now microprocessor IC2 exports as high level is effective, the output of optical coupler U1 is conducting state, and solid state relay K2 coil obtains electric, and solid state relay K2 normally-closed contact becomes normally open, solid state relay K1 coil losing electricity disconnects, the contacts status of solid state relay K1 sets back, and namely normally-closed contact becomes closure state from off-state, and the power supply of mother controller is provided to be switched to by first via power supply and provided by the second road power supply; If the second road power failure, first via power supply is normal, now microprocessor IC2 exports as Low level effective, the output of optical coupler U1 is high-impedance state, solid state relay K2 coil losing electricity disconnects, solid state relay K1 coil obtains electric adhesive, and the normally opened contact of solid state relay K1 becomes normally off from normally open, and the power supply of mother controller is provided to be switched to by the second road power supply and provided by first via power supply; If the second road power failure, first via power supply also breaks down, and microprocessor IC2 carries out software judgement, and the electrical source exchange of mother controller is to closer to normal power voltage Na mono-tunnel.
Embodiment recited above is only be described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the utility model designs spiritual prerequisite; the various distortion that the common engineers and technicians in this area make technical solutions of the utility model and improvement, all should fall in protection range that claims of the present utility model determine.
Claims (1)
1. one kind is applicable to the two-way power transfer device of mother controller, comprise two-way electrical source exchange drive circuit (1), transformer change-over circuit (2), control power supply input circuit (3), isolated drive circuit (4), is characterized in that: two-way electrical source exchange drive circuit (1) comprises the first solid state relay, the second solid state relay and the first optical coupler; Two groups of normally opened contacts of the first solid state relay are connected to phase line and the neutral line two ends of first via power supply, two groups of normally-closed contacts of the first solid state relay are connected to phase line and the neutral line two ends of the second road power supply, two groups of common of the first solid state relay are connected to the two ends of the first transformer primary side, constitute the chain circuit of two-way power supply; Coil one end of first solid state relay is connected with the phase line of first via power supply, the coil other end of the first solid state relay is connected with the common of the second solid state relay, the normally opened contact of the second solid state relay is connected to the neutral line of first via power supply, coil one end of second solid state relay is connected with 5V, the coil other end of the second solid state relay is connected with output one end of the first optical coupler, the output other end of the first optical coupler is connected to 5V power supply ground, constitutes switch driving circuit; Transformer change-over circuit (2) comprises the first transformer; The two ends of the first transformer primary side are connected to two groups of common of the first solid state relay, the input of the first rectifier bridge that the two ends of the first Circuit Fault on Secondary Transformer are connected to; Control power supply input circuit (3) and comprise the first rectifier bridge and the first filter capacitor; The input of the first rectifier bridge is connected to the two ends of the first Circuit Fault on Secondary Transformer, and the first rectification bridge output end is connected to the first filter capacitor; Isolated drive circuit (4) comprises the first optical coupler and the first resistance; Output one end of first optical coupler is connected with one end of the first resistance, and the output other end of the first optical coupler is connected with the ground of microprocessor, and the other end of the first resistance is connected with microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520102417.9U CN204481565U (en) | 2015-02-10 | 2015-02-10 | A kind of two-way power transfer device being applicable to mother controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520102417.9U CN204481565U (en) | 2015-02-10 | 2015-02-10 | A kind of two-way power transfer device being applicable to mother controller |
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| CN204481565U true CN204481565U (en) | 2015-07-15 |
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| CN201520102417.9U Active CN204481565U (en) | 2015-02-10 | 2015-02-10 | A kind of two-way power transfer device being applicable to mother controller |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618033A (en) * | 2016-07-13 | 2018-01-23 | 深圳市朗驰欣创科技股份有限公司 | Robot jerk control system and method |
| CN109659912A (en) * | 2018-12-20 | 2019-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of marine intelligent direct current mother controller |
| CN110544978A (en) * | 2019-09-25 | 2019-12-06 | 江铃重型汽车有限公司 | commercial vehicle and redundant power supply system thereof |
| CN110970992A (en) * | 2019-11-01 | 2020-04-07 | 许继电源有限公司 | Dual-power switching device |
-
2015
- 2015-02-10 CN CN201520102417.9U patent/CN204481565U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107618033A (en) * | 2016-07-13 | 2018-01-23 | 深圳市朗驰欣创科技股份有限公司 | Robot jerk control system and method |
| CN109659912A (en) * | 2018-12-20 | 2019-04-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七二研究所） | A kind of marine intelligent direct current mother controller |
| CN110544978A (en) * | 2019-09-25 | 2019-12-06 | 江铃重型汽车有限公司 | commercial vehicle and redundant power supply system thereof |
| CN110544978B (en) * | 2019-09-25 | 2021-06-15 | 江铃汽车股份有限公司 | Commercial vehicle and redundant power supply system thereof |
| CN110970992A (en) * | 2019-11-01 | 2020-04-07 | 许继电源有限公司 | Dual-power switching device |
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