CN202634259U - Alternating current and direct current dual-purposed power supply control circuit - Google Patents
Alternating current and direct current dual-purposed power supply control circuit Download PDFInfo
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- CN202634259U CN202634259U CN 201220224220 CN201220224220U CN202634259U CN 202634259 U CN202634259 U CN 202634259U CN 201220224220 CN201220224220 CN 201220224220 CN 201220224220 U CN201220224220 U CN 201220224220U CN 202634259 U CN202634259 U CN 202634259U
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- control circuit
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- direct current
- power supply
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Abstract
The utility model discloses an alternating current and direct current dual-purposed power supply control circuit. The alternating current and direct current dual-purposed power supply control circuit is characterized by comprising a power input circuit, a power detection circuit, a power gating circuit, a relay gating circuit and a control circuit. A signal input end of the power detection circuit is connected with an output end of the power input circuit, a signal output end of the power detection circuit is connected with one of output ends of the control circuit, a control output end of the power gating circuit is connected with a control input end of the power input circuit, a control input end of the relay gating circuit is connected with the other output end of the control circuit, and a control output end of the relay gating circuit is connected with an alternating current and direct current load externally. The power detection circuit provides detected alternating current and direct current power types to the control circuit, the control circuit outputs alternating current and direct current power signals to select load to work through the relay gating circuit, and therefore a dual-purposed control circuit structure provided with 12V vehicle-mounted direct current and alternating current electric supply is formed, The alternating current and direct current dual-purposed power supply control circuit is simple in structure and low in cost, and can achieve free switching between vehicle-mounted direct current and household alternating current.
Description
Technical field
The utility model relates to a kind of control circuit, especially a kind of alternating current-direct current double-purpose power control circuit.Belong to small household appliances electronic control technology field.
Background technology
Along with developing rapidly of global economy and popularizing of family-sized car, vehicle-mounted version, car refrigerator, vehicle-mounted incubator, vehicle-mounted warm milk device, vehicle-mounted coffee machine or the like have appearred in increasing small household appliances.The shortcoming that present vehicle mounted electrical apparatus exists can only be used vehicle-mounted 12V direct current supply exactly, wants to bring back family and just uses dying.Therefore, need provide a kind of 12V of being applicable to direct current vehicle-mounted power control circuit with the 220V electric main.
The utility model content
The purpose of the utility model is in order to solve the weak point of above-mentioned prior art, a kind of alternating current-direct current double-purpose power control circuit simple in structure, with low cost to be provided.
The purpose of the utility model can reach through following technical scheme:
A kind of alternating current-direct current double-purpose power control circuit; It is characterized in that: comprise power supply input circuit, power sense circuit, power supply gating circuit, relay gating circuit and control circuit, power supply input circuit is provided with 12V direct-flow input end and 220V civil power ac input end; The signal input part of power sense circuit connects the output of power supply input circuit; The signal output part of power sense circuit connects one of input of control circuit; The control input end of power supply gating circuit connects one of output of control circuit; The control output end of power supply gating circuit connects the control input end of power supply input circuit, two of the output of the control input end connection control circuit of relay gating circuit, the external alternating current-direct current load in the control output end of relay gating circuit; Provide detected alterating and direct current source category to control circuit by power sense circuit, control circuit is through the relay gating circuit, and the output AC/DC power supply signal is selected loaded work piece; Formation has the vehicle-mounted control circuit structure with the electric main double-purpose of 12V direct current.
The purpose of the utility model can also reach through following technical scheme:
A kind of Technological improvement plan of the utility model is: said power supply input circuit is formed by connecting 12V direct-flow input end, 220V civil power ac input end and voltage-stabiliser tube ZD; Said power supply gating circuit is connected to form by diode D1～D5, triode Q1～Q3, resistance R 1～R3, capacitor C 1～C21 and relay R LY3; Said power sense circuit is connected to form by resistance R 4～R6 and optocoupler diode O1, and said relay gating circuit is connected to form by diode D6～D7, triode Q4～Q6, resistance R 7～R10 and relay R LY1～RLY2; Said control circuit is formed by connecting microprocessor MCU1 and peripheral crystal resonator and resistance, electric capacity thereof; The output of said relay R LY1, RLY2 connects AC load and DC load respectively.
A kind of Technological improvement plan of the utility model is: said triode Q1～Q3 can be the high-voltage three-pole pipe, and the withstand voltage of its collector electrode C and emitter E can be 400V at least.
A kind of Technological improvement plan of the utility model is: the voltage stabilizing value of said voltage-stabiliser tube ZD1 can be 15V.
A kind of Technological improvement plan of the utility model is: said optocoupler diode O1 can have and detects power supply and be input as the vehicle-mounted electrical structure with the 220V electric main of 12V direct current.
A kind of Technological improvement plan of the utility model is: said relay R LY1～RLY3 tool can have one group of unlimited, one group of electrical structure of changing.
A kind of Technological improvement plan of the utility model is: said power supply gating circuit can be connected with decompression rectifier filter circuit through relay R LY3.
The utlity model has following outstanding beneficial effect:
1, the utility model provides detected alterating and direct current source category to control circuit by control circuit according to power sense circuit, and control circuit is through the relay gating circuit, and the output AC/DC power supply signal is selected loaded work piece; Formation has the vehicle-mounted control circuit structure with the electric main double-purpose of 12V direct current, has the effect of alternating current-direct current double-purpose, adaptable across the small household appliance of various alternating current-direct currents.
2, the utility model is simple in structure; With low cost; Power supply inputs to control board through interface, rectifying and wave-filtering after the power supply gating circuit is selected, and microprocessor MCU1 is the vehicle-mounted or 220V electric main of 12V direct current through the power supply that power sense circuit detects current input; Thereby control gating DC load or AC load realize the random switching that vehicle-mounted direct current exchanges with family expenses.
Description of drawings
Fig. 1 is the circuit block diagram of the utility model.
Fig. 2 is the schematic block circuit diagram of the utility model.
Wherein, 1-power supply gating circuit, 2-power sense circuit, 3-relay gating circuit, R1～R10-resistance, Q1～Q6-triode, RLY1～RLY3-relay, ZD1-voltage-stabiliser tube, O1-optocoupler, MCU1-microprocessor.
Embodiment
Specific embodiment 1:
Fig. 1 and Fig. 2 constitute the specific embodiment 1 of the utility model.
With reference to Fig. 1, present embodiment comprises power supply input circuit, power sense circuit, power supply gating circuit, relay gating circuit and control circuit, and power supply input circuit is provided with 12V direct-flow input end and 220V civil power ac input end; The signal input part of power sense circuit connects the output of power supply input circuit; The signal output part of power sense circuit connects one of input of control circuit; The control input end of power supply gating circuit connects one of output of control circuit; The control output end of power supply gating circuit connects the control input end of power supply input circuit, two of the output of the control input end connection control circuit of relay gating circuit, the external alternating current-direct current load in the control output end of relay gating circuit; Provide detected alterating and direct current source category to control circuit by power sense circuit, control circuit is through the relay gating circuit, and the output AC/DC power supply signal is selected loaded work piece; Formation has the vehicle-mounted control circuit structure with the electric main double-purpose of 12V direct current.
In the present embodiment:
With reference to Fig. 2, said power supply input circuit is formed by connecting 12V direct-flow input end, 220V civil power ac input end and voltage-stabiliser tube ZD; Said power supply gating circuit 1 is connected to form by diode D1～D5, triode Q1～Q3, resistance R 1～R3, capacitor C 1～C21 and relay R LY3; Said power sense circuit 2 is connected to form by resistance R 4～R6 and optocoupler diode O1, and said relay gating circuit 3 is connected to form by diode D6～D7, triode Q4～Q6, resistance R 7～R10 and relay R LY1～RLY2; Said control circuit is formed by connecting microprocessor MCU1 and peripheral crystal resonator and resistance, electric capacity thereof; The output of said relay R LY1, RLY2 connects AC load and DC load respectively.
Said triode Q1～Q3 is the high-voltage three-pole pipe, and the withstand voltage of its collector electrode C and emitter E is at least 400V.The voltage stabilizing value of said voltage-stabiliser tube ZD1 is 15V.Said optocoupler diode O1 has and detects power supply and be input as the vehicle-mounted electrical structure with the 220V electric main of 12V direct current.Said relay R LY1～RLY3 has one group of unlimited, one group of electrical structure of changing.Said power supply gating circuit (1) is connected with decompression rectifier filter circuit through relay R LY3.
The operation principle of present embodiment:
With reference to Fig. 2, power supply is come in from input interface, through voltage-stabiliser tube ZD1; If input is the 220V civil power, voltage-stabiliser tube ZD1 work, triode Q1 conducting; Triode Q2 and Q3 end, and relay R LY3 breaks off, and power supply is through back decompression rectifier filter circuit part; Not conducting of optocoupler diode O1 simultaneously, the 4th pin of microprocessor MCU1 detects low level; If input is the vehicle-mounted DC power supply of 12V, ZD1 does not work, and triode Q1 ends; Triode Q2 and Q3 conducting, the step-down part of decompression rectifier filter circuit is at the back directly skipped in relay R LY3 adhesive; Optocoupler diode O1 conducting simultaneously, the 4th pin of microprocessor MCU1 detects high level.What microprocessor MCU1 judged input through the level of the 4th pin is the vehicle-mounted or 220V electric main of 12V direct current, thereby selects adhesive DC load or AC load.
The above; Be merely the preferable specific embodiment of the utility model; But the protection range of the utility model is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or changes according to the technical scheme of the utility model and utility model design thereof in the scope that the utility model discloses, and all belongs to the protection range of the utility model.
Claims (7)
1. alternating current-direct current double-purpose power control circuit; It is characterized in that: comprise power supply input circuit, power sense circuit, power supply gating circuit, relay gating circuit and control circuit, power supply input circuit is provided with 12V direct-flow input end and 220V civil power ac input end; The signal input part of power sense circuit connects the output of power supply input circuit; The signal output part of power sense circuit connects one of input of control circuit; The control input end of power supply gating circuit connects one of output of control circuit; The control output end of power supply gating circuit connects the control input end of power supply input circuit, two of the output of the control input end connection control circuit of relay gating circuit, the external alternating current-direct current load in the control output end of relay gating circuit; Provide detected alterating and direct current source category to control circuit by power sense circuit, control circuit is through the relay gating circuit, and the output AC/DC power supply signal is selected loaded work piece; Formation has the vehicle-mounted control circuit structure with the electric main double-purpose of 12V direct current.
2. a kind of alternating current-direct current double-purpose power control circuit according to claim 1, it is characterized in that: said power supply input circuit is formed by connecting 12V direct-flow input end, 220V civil power ac input end and voltage-stabiliser tube ZD; Said power supply gating circuit (1) is connected to form by diode D1～D5, triode Q1～Q3, resistance R 1～R3, capacitor C 1～C21 and relay R LY3; Said power sense circuit (2) is connected to form by resistance R 4～R6 and optocoupler diode O1, and said relay gating circuit (3) is connected to form by diode D6～D7, triode Q4～Q6, resistance R 7～R10 and relay R LY1～RLY2; Said control circuit is formed by connecting microprocessor MCU1 and peripheral crystal resonator and resistance, electric capacity thereof; The output of said relay R LY1, RLY2 connects AC load and DC load respectively.
3. a kind of alternating current-direct current double-purpose power control circuit according to claim 2, it is characterized in that: said triode Q1～Q3 is the high-voltage three-pole pipe, and the withstand voltage of its collector electrode C and emitter E is at least 400V.
4. a kind of alternating current-direct current double-purpose power control circuit according to claim 2, it is characterized in that: the voltage stabilizing value of said voltage-stabiliser tube ZD1 is 15V.
5. a kind of alternating current-direct current double-purpose power control circuit according to claim 2 is characterized in that: said optocoupler diode O1 has and detects power supply and be input as the vehicle-mounted electrical structure with the 220V electric main of 12V direct current.
6. a kind of alternating current-direct current double-purpose power control circuit according to claim 2 is characterized in that: said relay R LY1～RLY3 has one group of unlimited, one group of electrical structure of changing.
7. a kind of alternating current-direct current double-purpose power control circuit according to claim 2, it is characterized in that: said power supply gating circuit (1) is connected with decompression rectifier filter circuit through relay R LY3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224220 CN202634259U (en) | 2012-05-17 | 2012-05-17 | Alternating current and direct current dual-purposed power supply control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220224220 CN202634259U (en) | 2012-05-17 | 2012-05-17 | Alternating current and direct current dual-purposed power supply control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634259U true CN202634259U (en) | 2012-12-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220224220 Expired - Fee Related CN202634259U (en) | 2012-05-17 | 2012-05-17 | Alternating current and direct current dual-purposed power supply control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467161A (en) * | 2014-09-30 | 2015-03-25 | 洛阳隆盛科技有限责任公司 | AC/DC input switching circuit and method for power source |
-
2012
- 2012-05-17 CN CN 201220224220 patent/CN202634259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467161A (en) * | 2014-09-30 | 2015-03-25 | 洛阳隆盛科技有限责任公司 | AC/DC input switching circuit and method for power source |
| CN104467161B (en) * | 2014-09-30 | 2017-12-01 | 洛阳隆盛科技有限责任公司 | A kind of power supply alternating current-direct current input-switching circuit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., Free format text: FORMER NAME: FOSHAN SHUNDE REALDESIGN ELECTRONICS INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 528300 Guangdong province Foshan city Shunde District Daliang Industrial Park Road Fengxiang Huaye Ruixiang Road No. 1 Patentee after: GUANGDONG REAL-DESIGN INTELLIGENT TECHNOLOGY CO., LTD. Address before: 528300 Guangdong province Foshan city Shunde District Daliang Industrial Park Fengxiang Huaye Road No. 1 Patentee before: Foshan Shunde Realdesign Electronics Industry Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20170517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |