CN204103442U - Self-recovering type overvoltage-undervoltage protector circuit - Google Patents
Self-recovering type overvoltage-undervoltage protector circuit Download PDFInfo
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- CN204103442U CN204103442U CN201420619330.4U CN201420619330U CN204103442U CN 204103442 U CN204103442 U CN 204103442U CN 201420619330 U CN201420619330 U CN 201420619330U CN 204103442 U CN204103442 U CN 204103442U
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Abstract
The utility model relates to a kind of self-recovering type overvoltage-undervoltage protector circuit, and comprise power supply input, described self-recovering type overvoltage-undervoltage protector circuit also comprises: power circuit, voltage detecting circuit and runback executive circuit; Wherein, described power circuit comprises: capacitance-resistance voltage reduction circuit and power supply status indicating circuit; Described voltage detecting circuit comprises: voltage signal testing circuit, over-and under-voltage decision circuitry and over-and under-voltage automatic selection circuit; Described runback executive circuit comprises: runback control circuit, runback condition indication circuit and executive circuit; Described power circuit, voltage detecting circuit are connected successively with runback executive circuit and described power circuit is connected with described runback executive circuit again.There is overvoltage and under-voltage protection function simultaneously, there is the function of automatic recovery of power supply after circuit voltage resume is normal; Simple, the anti-electromagnetic compatibility characteristic of whole circuit design is high, is very applicable to batch production at the bottom of cost simultaneously.
Description
Technical field
The utility model relates to protector circuit engineering field, more particularly, relates to a kind of self-recovering type overvoltage-undervoltage protector circuit.
Background technology
For avoiding, because the phase line of broken neutral line, house lead in and the neutral line connect the overvoltage or under voltage that the reason such as anti-causes, causing damaging or burning electrical equipment, bring economic loss even to jeopardize personal safety to user.At present conventional overvoltage-undervoltage protector or can only shield to the overvoltage of circuit, or can only shield to the under voltage of circuit, when line voltage distribution recover normal after cannot automatic recovery of power supply, and can powering of manually again closing a floodgate must be adopted.Not only inconvenient but also dangerous again for user.Simultaneously standard JGJ 242 " residential housing electrical design specification " 6. 3. 2 clear stipulaties: " often overlap house and should arrange that self-recovering type is crossed, under voltage protection electrical equipment.”
Therefore, prior art urgently has greatly improved.
Summary of the invention
The technical problems to be solved in the utility model is, for the above-mentioned defect of prior art, provides a kind of self-recovering type overvoltage-undervoltage protector circuit, comprising: power supply inputs, and also comprises: power circuit, voltage detecting circuit and runback executive circuit; Wherein, described power circuit comprises: capacitance-resistance voltage reduction circuit and power supply status indicating circuit; Described voltage detecting circuit comprises: voltage signal testing circuit, over-and under-voltage decision circuitry and over-and under-voltage automatic selection circuit; Described runback executive circuit comprises: runback control circuit, runback condition indication circuit and executive circuit; Described power circuit, voltage detecting circuit are connected successively with runback executive circuit and described power circuit is connected with described runback executive circuit again.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described capacitance-resistance voltage reduction circuit comprises further: piezo-resistance MYR1, diode D1, diode D2, diode D3, diode D4, electric capacity C1, electric capacity C2, electric capacity C4, resistance R1, resistance R3, resistance R4, resistance R6, resistance R9, voltage stabilizing didoe D5, voltage stabilizing didoe D7; Wherein said voltage stabilizing didoe D5 forms VDD power supply, and described voltage stabilizing didoe D7 forms VCC power supply.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described power supply status indicating circuit comprises further: the resistance R7 be connected in series and light-emitting diode D6.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described voltage signal testing circuit comprises further: resistance R2, resistance R14, resistance R15, resistance R16, diode D15, electric capacity C3 and adjustable resistance RV1.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model; described over-and under-voltage decision circuitry comprises further: resistance R5, resistance R8, resistance R10, resistance R11, resistance R17, resistance R18, resistance R20; diode D11, diode D12, operational amplifier U1A, operational amplifier U1D and adjustable resistance RV2.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described over-and under-voltage automatic selection circuit comprises further: the diode D13 connected and diode D14.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described runback executive circuit comprises further: runback control circuit, runback condition indication circuit and executive circuit.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described runback control circuit comprises further: resistance R11, resistance R12, resistance R19, electric capacity C5, resistance C6, transistor Q1, transistor Q2, diode D8 and operational amplifier U1C.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described runback condition indication circuit comprises further: the resistance R13 be connected in series and light-emitting diode D10.
In self-recovering type overvoltage-undervoltage protector circuit described in the utility model, described executive circuit comprises further: the diode D9 be connected in series and relay K 1.
Implement self-recovering type overvoltage-undervoltage protector circuit of the present utility model, there is following beneficial effect: not only there is overvoltage and under-voltage protection function simultaneously, effectively can solve overvoltage-undervoltage protector conventional at present can not have overvoltage and under-voltage protection function simultaneously, and there is the function of automatic recovery of power supply after circuit voltage resume is normal, recover normally can not the defect of automatic recovery of power supply when line voltage distribution effectively to solve overvoltage-undervoltage protector conventional at present; Simple, the anti-electromagnetic compatibility characteristic of whole circuit design is high, is very applicable to batch production at the bottom of cost simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the theory diagram of self-recovering type overvoltage-undervoltage protector circuit of the present utility model;
Fig. 2 is self-recovering type overvoltage-undervoltage protector circuit power circuit theory diagrams of the present utility model;
Fig. 3 is self-recovering type overvoltage-undervoltage protector circuit voltage testing circuit schematic diagram of the present utility model;
Fig. 4 is self-recovering type overvoltage-undervoltage protector circuit runback executive circuit schematic diagram of the present utility model.
Embodiment
Referring to Fig. 1, is the theory diagram of the utility model self-recovering type overvoltage-undervoltage protector circuit.Referring to Fig. 2, is self-recovering type overvoltage-undervoltage protector circuit power circuit theory diagrams of the present utility model; Referring to Fig. 3, is self-recovering type overvoltage-undervoltage protector circuit voltage testing circuit schematic diagram of the present utility model; Referring to Fig. 4, is self-recovering type overvoltage-undervoltage protector circuit runback executive circuit schematic diagram of the present utility model.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, in the self-recovering type overvoltage-undervoltage protector circuit that the utility model provides, at least comprise, power supply inputs, and also comprises: power circuit, voltage detecting circuit and runback executive circuit; Wherein, described power circuit comprises: capacitance-resistance voltage reduction circuit and power supply status indicating circuit; Described voltage detecting circuit comprises: voltage signal testing circuit, over-and under-voltage decision circuitry and over-and under-voltage automatic selection circuit; Described runback executive circuit comprises: runback control circuit, runback condition indication circuit and executive circuit; Described power circuit, voltage detecting circuit are connected successively with runback executive circuit and described power circuit is connected with described runback executive circuit again.
Described capacitance-resistance voltage reduction circuit comprises further: piezo-resistance MYR1, diode D1, diode D2, diode D3, diode D4, electric capacity C1, electric capacity C2, electric capacity C4, resistance R1, resistance R3, resistance R4, resistance R6, resistance R9, voltage stabilizing didoe D5, voltage stabilizing didoe D7; Wherein said voltage stabilizing didoe D5 forms VDD power supply, and described voltage stabilizing didoe D7 forms VCC power supply.
Described power supply status indicating circuit comprises further: the resistance R7 be connected in series and light-emitting diode D6.
Described voltage signal testing circuit comprises further: resistance R2, resistance R14, resistance R15, resistance R16, diode D15, electric capacity C3 and adjustable resistance RV1.
Described over-and under-voltage decision circuitry comprises further: resistance R5, resistance R8, resistance R10, resistance R11, resistance R17, resistance R18, resistance R20, diode D11, diode D12, operational amplifier U1A, operational amplifier U1D and adjustable resistance RV2.
Described over-and under-voltage automatic selection circuit comprises further: the diode D13 connected and diode D14.
Described runback executive circuit comprises further: runback control circuit, runback condition indication circuit and executive circuit.
Described runback control circuit comprises further: resistance R11, resistance R12, resistance R19, electric capacity C5, resistance C6, transistor Q1, transistor Q2, diode D8 and operational amplifier U1C.
Described runback condition indication circuit comprises further: the resistance R13 be connected in series and light-emitting diode D10.
Described executive circuit comprises further: the diode D9 be connected in series and relay K 1.
The utility model is by the design of above first embodiment, can accomplish not only there is overvoltage and under-voltage protection function simultaneously, effectively can solve overvoltage-undervoltage protector conventional at present can not have overvoltage and under-voltage protection function simultaneously, and there is the function of automatic recovery of power supply after circuit voltage resume is normal, recover normally can not the defect of automatic recovery of power supply when line voltage distribution effectively to solve overvoltage-undervoltage protector conventional at present; Simple, the anti-electromagnetic compatibility characteristic of whole circuit design is high, is very applicable to batch production at the bottom of cost simultaneously.
The utility model is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the utility model scope, can carry out various change and equivalent replacement.In addition, for adapting to the specific occasion of the utility model technology, can many amendments be carried out to the utility model and not depart from its protection range.Therefore, the utility model is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.
Claims (10)
1. a self-recovering type overvoltage-undervoltage protector circuit, comprising: power supply inputs, and it is characterized in that, described self-recovering type overvoltage-undervoltage protector circuit also comprises: power circuit, voltage detecting circuit and runback executive circuit;
Wherein, described power circuit comprises: capacitance-resistance voltage reduction circuit and power supply status indicating circuit; Described voltage detecting circuit comprises: voltage signal testing circuit, over-and under-voltage decision circuitry and over-and under-voltage automatic selection circuit; Described runback executive circuit comprises: runback control circuit, runback condition indication circuit and executive circuit; Described power circuit, voltage detecting circuit are connected successively with runback executive circuit and described power circuit is connected with described runback executive circuit again.
2. self-recovering type overvoltage-undervoltage protector circuit according to claim 1, it is characterized in that, described capacitance-resistance voltage reduction circuit comprises further: piezo-resistance MYR1, diode D1, diode D2, diode D3, diode D4, electric capacity C1, electric capacity C2, electric capacity C4, resistance R1, resistance R3, resistance R4, resistance R6, resistance R9, voltage stabilizing didoe D5, voltage stabilizing didoe D7; Wherein said voltage stabilizing didoe D5 forms VDD power supply, and described voltage stabilizing didoe D7 forms VCC power supply.
3. self-recovering type overvoltage-undervoltage protector circuit according to claim 1, is characterized in that, described power supply status indicating circuit comprises further: the resistance R7 be connected in series and light-emitting diode D6.
4. self-recovering type overvoltage-undervoltage protector circuit according to claim 1, is characterized in that, described voltage signal testing circuit comprises further: resistance R2, resistance R14, resistance R15, resistance R16, diode D15, electric capacity C3 and adjustable resistance RV1.
5. self-recovering type overvoltage-undervoltage protector circuit according to claim 1; it is characterized in that; described over-and under-voltage decision circuitry comprises further: resistance R5, resistance R8, resistance R10, resistance R11, resistance R17, resistance R18, resistance R20; diode D11, diode D12, operational amplifier U1A, operational amplifier U1D and adjustable resistance RV2.
6. self-recovering type overvoltage-undervoltage protector circuit according to claim 1, is characterized in that, described over-and under-voltage automatic selection circuit comprises further: the diode D13 connected and diode D14.
7. self-recovering type overvoltage-undervoltage protector circuit according to claim 1, is characterized in that, described runback executive circuit comprises further: runback control circuit, runback condition indication circuit and executive circuit.
8. self-recovering type overvoltage-undervoltage protector circuit according to claim 7; it is characterized in that, described runback control circuit comprises further: resistance R11, resistance R12, resistance R19, electric capacity C5, resistance C6; transistor Q1, transistor Q2, diode D8 and operational amplifier U1C.
9. self-recovering type overvoltage-undervoltage protector circuit according to claim 7, is characterized in that, described runback condition indication circuit comprises further: the resistance R13 be connected in series and light-emitting diode D10.
10. self-recovering type overvoltage-undervoltage protector circuit according to claim 7, it is characterized in that, described executive circuit comprises further: the diode D9 be connected in series and relay K 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619330.4U CN204103442U (en) | 2014-10-24 | 2014-10-24 | Self-recovering type overvoltage-undervoltage protector circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420619330.4U CN204103442U (en) | 2014-10-24 | 2014-10-24 | Self-recovering type overvoltage-undervoltage protector circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204103442U true CN204103442U (en) | 2015-01-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420619330.4U Expired - Fee Related CN204103442U (en) | 2014-10-24 | 2014-10-24 | Self-recovering type overvoltage-undervoltage protector circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN204103442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269816A (en) * | 2014-10-24 | 2015-01-07 | 长城电器集团有限公司 | Self-recovery overvoltage/undervoltage protector circuit |
| CN105186445A (en) * | 2015-08-20 | 2015-12-23 | 浙江凯发电气股份有限公司 | Novel self-recovery type overvoltage-undervoltage protector circuit |
-
2014
- 2014-10-24 CN CN201420619330.4U patent/CN204103442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269816A (en) * | 2014-10-24 | 2015-01-07 | 长城电器集团有限公司 | Self-recovery overvoltage/undervoltage protector circuit |
| CN105186445A (en) * | 2015-08-20 | 2015-12-23 | 浙江凯发电气股份有限公司 | Novel self-recovery type overvoltage-undervoltage protector circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180103 Address after: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Patentee after: ZHEJIANG KEVA ELECTRIC CO.,LTD. Address before: 325000, No. 2-1, white elephant Avenue, North white elephant Town, Wenzhou, Zhejiang, Yueqing Patentee before: CNC Electric Group Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 325000 No. 2-1 Baixiang Avenue, Beibeixiang Town, Yueqing City, Zhejiang Province (South Building) Patentee after: Great Wall Electrical Appliance Group Zhejiang Technology Co.,Ltd. Address before: 325000 white elephant road 2-1, North white elephant Town, Yueqing, Wenzhou, Zhejiang (South Tower) Patentee before: ZHEJIANG KEVA ELECTRIC CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20211024 |