CN105186445A - Novel self-recovery type overvoltage-undervoltage protector circuit - Google Patents
Novel self-recovery type overvoltage-undervoltage protector circuit Download PDFInfo
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- CN105186445A CN105186445A CN201510515189.2A CN201510515189A CN105186445A CN 105186445 A CN105186445 A CN 105186445A CN 201510515189 A CN201510515189 A CN 201510515189A CN 105186445 A CN105186445 A CN 105186445A
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Abstract
The invention relates to a novel self-recovery type overvoltage-undervoltage protector circuit. The novel self-recovery type overvoltage-undervoltage protector circuit comprises a power circuit, a voltage detection circuit and an execution circuit, wherein the power circuit, the voltage detection circuit and the execution circuit are connected in a closed loop successively; the voltage detection circuit further comprises a voltage signal conditioning circuit and an overvoltage-undervoltage determination circuit; and the power circuit further comprises a surge inhibition circuit, a full wave rectifier circuit, a capacitance-resistance voltage reduction circuit, a filter circuit and a voltage stabilizing circuit. The novel self-recovery type overvoltage-undervoltage protector circuit can reliably realize neutral line breaking protection and effectively prevent overvoltage or undervoltage caused by breaking of a neutral line so as to prevent damaging or burning electric appliances and prevent financial loss of a user or even prevent endangering personal safety. The novel self-recovery type overvoltage-undervoltage protector circuit has the function for automatic power restoration, and can effectively solve the defect that a current common overvoltage-undervoltage protector cannot realize automatic recover restoration when the line voltage returns to normal; and the whole novel self-recovery type overvoltage-undervoltage protector circuit is simple in design, and is high in anti-electromagnetic compatibility, and is low in cost and is very suitable for batch production.
Description
Technical field
The present invention relates to a kind of protector circuit, more particularly, relate to a kind of novel Self-recover overvoltage-undervoltage protector circuit.
Background technology
According to standard JGJ242 " residential housing electrical design specification " 6.3.2 bar clear stipulaties: " often overlap house and should arrange that self-recovering type is crossed, under voltage protection electrical equipment." demand of visible Self-recover overvoltage-undervoltage protector can get more and more.At present conventional overvoltage-undervoltage protector or can only shield to the overvoltage of circuit; 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, four pole products cannot realize reliable protection off zero simultaneously.
Therefore, prior art urgently has greatly improved.
Summary of the invention
The technical problem to be solved in the present invention is, for the above-mentioned defect of prior art, provides a kind of novel Self-recover overvoltage-undervoltage protector circuit, comprising: the power circuit that closed loop connects successively, voltage detecting circuit and executive circuit;
Wherein said voltage detecting circuit comprises voltage signal conditioning circuit and overvoltage/undervoltage decision circuitry further;
Described power circuit comprises surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit, voltage stabilizing circuit further.
In novel Self-recover overvoltage-undervoltage protector circuit of the present invention, described surge restraint circuit comprises piezo-resistance MYR1, piezo-resistance MYR2, piezo-resistance MYR3 further;
Described full-wave rectifying circuit comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6 further;
Described capacitance-resistance voltage reduction circuit comprises electric capacity C1, electric capacity C2, electric capacity C3 and resistance R1 further;
Described filter circuit comprises the electric capacity C4, the electric capacity C5 that are connected in parallel further;
Described voltage stabilizing circuit comprises resistance R7, resistance R8 and voltage stabilizing didoe D15, voltage stabilizing didoe D40 further, produces supply voltage VDD and VCC respectively;
In novel Self-recover overvoltage-undervoltage protector circuit of the present invention, described voltage signal conditioning circuit comprises resistance R10, resistance R17, resistance R20 further, diode D10, electric capacity C6.
In novel Self-recover overvoltage-undervoltage protector circuit of the present invention; described overvoltage/undervoltage decision circuitry is entered one and is comprised operational amplifier U1A, operational amplifier U1B; resistance R11, resistance R63, resistance R66, resistance R69, resistance R72, resistance R75, resistance R76, diode D25, diode D35.
In novel Self-recover overvoltage-undervoltage protector circuit of the present invention, described executive circuit comprises electric capacity C15 further, electric capacity C20; comparator U1C; diode D17, resistance R9, resistance R81, resistance R82, transistor Q1, transistor Q2 group and relay K 1, relay K 5, relay K 6.
Implement novel Self-recover overvoltage-undervoltage protector circuit of the present invention, there is following beneficial effect: can reliably realize protection off zero, effectively prevent the overvoltage because broken neutral line causes or under voltage, cause damaging or burning electrical equipment, bring economic loss even to jeopardize personal safety to user; Have overvoltage and under-voltage protection function, effectively can solve overvoltage-undervoltage protector conventional at present can not have overvoltage and under-voltage protection function simultaneously simultaneously; After circuit voltage resume is normal, have the function of automatic recovery of power supply, 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 invention will be further described, in accompanying drawing:
Fig. 1 is the module diagram of the first embodiment of the novel Self-recover overvoltage-undervoltage protector circuit of the present invention;
Fig. 2 is the concrete module power supply circuit circuit diagram of control module in Fig. 1.
Fig. 3 is the concrete modules A phase voltage detection circuit of control module in Fig. 1.
Fig. 4 is the concrete module B phase voltage detection circuit of control module in Fig. 1.
Fig. 5 is the concrete module C phase voltage detection circuit of control module in Fig. 1.
Fig. 6 is the concrete module executive circuit circuit diagram of control module in Fig. 1.
Embodiment
Referring to Fig. 1, is the module diagram of the first embodiment of the novel Self-recover overvoltage-undervoltage protector circuit of the present invention.As shown in Figure 1, in the novel Self-recover overvoltage-undervoltage protector circuit that first embodiment of the invention provides, at least comprise, the power circuit that closed loop connects successively, voltage detecting circuit and executive circuit; Wherein said voltage detecting circuit comprises voltage signal conditioning circuit and overvoltage/undervoltage decision circuitry further; Described power circuit comprises surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit, voltage stabilizing circuit further.
Incorporated by reference to consulting Fig. 2, it is the concrete module power supply circuit circuit diagram of control module in Fig. 1.Described power circuit comprises surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit, voltage stabilizing circuit further.Described surge restraint circuit comprises piezo-resistance MYR1, piezo-resistance MYR2, piezo-resistance MYR3 further;
Described full-wave rectifying circuit comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6 further;
Described capacitance-resistance voltage reduction circuit comprises electric capacity C1, electric capacity C2, electric capacity C3 and resistance R1 further;
Described filter circuit comprises the electric capacity C4, the electric capacity C5 that are connected in parallel further;
Described voltage stabilizing circuit comprises resistance R7, resistance R8 and voltage stabilizing didoe D15, voltage stabilizing didoe D40 further, produces supply voltage VDD and VCC respectively;
Incorporated by reference to consulting Fig. 3, it is the concrete modules A phase voltage detection circuit of control module in Fig. 1.
Incorporated by reference to consulting Fig. 4, it is the concrete module B phase voltage detection circuit of control module in Fig. 1.
Incorporated by reference to consulting Fig. 5, it is the concrete module C phase voltage detection circuit of control module in Fig. 1.
As shown in Fig. 3, Fig. 4, Fig. 5, described voltage detecting circuit comprises voltage signal conditioning circuit and overvoltage/undervoltage decision circuitry further.In novel Self-recover overvoltage-undervoltage protector circuit of the present invention, described voltage signal conditioning circuit comprises resistance R10, resistance R17, resistance R20 further, diode D10, electric capacity C6.
Described overvoltage/undervoltage decision circuitry is entered one and is comprised operational amplifier U1A, operational amplifier U1B, resistance R11, resistance R63, resistance R66, resistance R69, resistance R72, resistance R75, resistance R76, diode D25, diode D35.
Incorporated by reference to consulting Fig. 6, it is the concrete module executive circuit circuit diagram of control module in Fig. 1.As shown in Figure 6; in the first embodiment provided by the invention; in novel Self-recover overvoltage-undervoltage protector circuit of the present invention; described executive circuit comprises electric capacity C15 further; electric capacity C20, comparator U1C, diode D17; resistance R9, resistance R81, resistance R82, transistor Q1, transistor Q2 group and relay K 1, relay K 5, relay K 6.
The present invention, by the design of above first embodiment, can accomplish reliably realize protection off zero, effectively prevent the overvoltage because broken neutral line causes or under voltage, causes damaging or burning electrical equipment, brings economic loss even to jeopardize personal safety to user; Have overvoltage and under-voltage protection function, effectively can solve overvoltage-undervoltage protector conventional at present can not have overvoltage and under-voltage protection function simultaneously simultaneously; After circuit voltage resume is normal, have the function of automatic recovery of power supply, 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 present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the scope of the invention, can carry out various change and equivalent replacement.In addition, for adapting to the specific occasion of the technology of the present invention, can many amendments be carried out to the present invention and not depart from its protection range.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.
Claims (5)
1. a novel Self-recover overvoltage-undervoltage protector circuit, is characterized in that, comprising: the power circuit that closed loop connects successively, voltage detecting circuit and executive circuit;
Wherein said voltage detecting circuit comprises voltage signal conditioning circuit and overvoltage/undervoltage decision circuitry further;
Described power circuit comprises surge restraint circuit, full-wave rectifying circuit, capacitance-resistance voltage reduction circuit, filter circuit, voltage stabilizing circuit further.
2. novel Self-recover overvoltage-undervoltage protector circuit according to claim 1, it is characterized in that, described surge restraint circuit comprises piezo-resistance MYR1, piezo-resistance MYR2, piezo-resistance MYR3 further;
Described full-wave rectifying circuit comprises diode D1, diode D2, diode D3, diode D4, diode D5, diode D6 further;
Described capacitance-resistance voltage reduction circuit comprises electric capacity C1, electric capacity C2, electric capacity C3 and resistance R1 further;
Described filter circuit comprises the electric capacity C4, the electric capacity C5 that are connected in parallel further;
Described voltage stabilizing circuit comprises resistance R7, resistance R8 and voltage stabilizing didoe D15, voltage stabilizing didoe D40 further, produces supply voltage VDD and VCC respectively.
3. novel Self-recover overvoltage-undervoltage protector circuit according to claim 1, is characterized in that, described voltage signal conditioning circuit comprises resistance R10, resistance R17, resistance R20 further, diode D10, electric capacity C6.
4. novel Self-recover overvoltage-undervoltage protector circuit according to claim 1; it is characterized in that; described overvoltage/undervoltage decision circuitry is entered one and is comprised operational amplifier U1A, operational amplifier U1B; resistance R11, resistance R63, resistance R66, resistance R69, resistance R72, resistance R75, resistance R76, diode D25, diode D35.
5. the novel Self-recover overvoltage-undervoltage protector circuit according to any one of Claims 1-4 claim; it is characterized in that; described executive circuit comprises electric capacity C15 further; electric capacity C20; comparator U1C; diode D17, resistance R9, resistance R81, resistance R82, transistor Q1, transistor Q2 group and relay K 1, relay K 5, relay K 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515189.2A CN105186445A (en) | 2015-08-20 | 2015-08-20 | Novel self-recovery type overvoltage-undervoltage protector circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510515189.2A CN105186445A (en) | 2015-08-20 | 2015-08-20 | Novel self-recovery type overvoltage-undervoltage protector circuit |
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| CN105186445A true CN105186445A (en) | 2015-12-23 |
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| CN201510515189.2A Pending CN105186445A (en) | 2015-08-20 | 2015-08-20 | Novel self-recovery type overvoltage-undervoltage protector circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356806A (en) * | 2016-11-04 | 2017-01-25 | 青岛海信网络科技股份有限公司 | Protection circuit for traffic signal controller |
| CN109066573A (en) * | 2018-09-30 | 2018-12-21 | 张健 | A kind of new-energy automobile apparatus for protecting power supply |
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| CN101697409A (en) * | 2009-10-22 | 2010-04-21 | 薛小平 | Voltage deviation action protecting device |
| CN103872658A (en) * | 2014-04-03 | 2014-06-18 | 湖南星球智能电气科技开发有限公司 | Multifunctional self-recovery over-voltage and under-voltage protector |
| CN103972862A (en) * | 2014-04-18 | 2014-08-06 | 南京信息工程大学 | Lightning protection type over-voltage and under-voltage protective device capable of automatically resetting |
| CN204103442U (en) * | 2014-10-24 | 2015-01-14 | 长城电器集团有限公司 | Self-recovering type overvoltage-undervoltage protector circuit |
| CN204835475U (en) * | 2015-08-20 | 2015-12-02 | 浙江凯发电气股份有限公司 | Novel cross undervoltage protection ware circuit from double entry |
-
2015
- 2015-08-20 CN CN201510515189.2A patent/CN105186445A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697409A (en) * | 2009-10-22 | 2010-04-21 | 薛小平 | Voltage deviation action protecting device |
| CN103872658A (en) * | 2014-04-03 | 2014-06-18 | 湖南星球智能电气科技开发有限公司 | Multifunctional self-recovery over-voltage and under-voltage protector |
| CN103972862A (en) * | 2014-04-18 | 2014-08-06 | 南京信息工程大学 | Lightning protection type over-voltage and under-voltage protective device capable of automatically resetting |
| CN204103442U (en) * | 2014-10-24 | 2015-01-14 | 长城电器集团有限公司 | Self-recovering type overvoltage-undervoltage protector circuit |
| CN204835475U (en) * | 2015-08-20 | 2015-12-02 | 浙江凯发电气股份有限公司 | Novel cross undervoltage protection ware circuit from double entry |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106356806A (en) * | 2016-11-04 | 2017-01-25 | 青岛海信网络科技股份有限公司 | Protection circuit for traffic signal controller |
| CN109066573A (en) * | 2018-09-30 | 2018-12-21 | 张健 | A kind of new-energy automobile apparatus for protecting power supply |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Applicant after: Zhejiang Kai FA Electric Co., Ltd. Address before: 2-1 No. 325000 Zhejiang city of Wenzhou province Yueqing North white elephant white town road (South) Applicant before: ZHEJIANG KAIFA ELECTRICAL CO., LTD. |
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| CB03 | Change of inventor or designer information |
Inventor after: Yu Cuntai Inventor after: Li Qili Inventor after: Zhang Huoming Inventor after: Yang Xiaoteng Inventor after: Fang Xiaodong Inventor before: Yu Cuntai Inventor before: Fang Xiaodong Inventor before: Zhang Huoming Inventor before: Xiao Yifeng Inventor before: Peng Kunming |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151223 |