CN204349439U - The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor - Google Patents
The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor Download PDFInfo
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- CN204349439U CN204349439U CN201420705956.7U CN201420705956U CN204349439U CN 204349439 U CN204349439 U CN 204349439U CN 201420705956 U CN201420705956 U CN 201420705956U CN 204349439 U CN204349439 U CN 204349439U
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Abstract
The utility model discloses the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor, comprise: power circuit, executive circuit, anti-direct circuit and drive circuit, described power circuit is used for providing power supply to described executive circuit, the output of described drive circuit connects described executive circuit, and the two ends of described anti-direct circuit are connected to the two ends of drive circuit; Described drive circuit has H-bridge drive circuit and drives; Described anti-direct circuit comprises: drive singal DR_ON, DR_OFF access the input of NAND gate U1A; the output of described NAND gate U1A connects the input with door U2A, U2B simultaneously respectively; protect H bridge simultaneously and drive triode, make the drive circuit of Intelligent capacitor more reliable.
Description
Technical field
The utility model relates to a kind of drive circuit of magnetic latching relay, especially relates to the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor.
Background technology
The Intelligent capacitor of a new generation is because modular construction, and volume is little, field connection is simple, easy to maintenance, is more and more applied.Along with the development of Intelligent capacitor, capacitor drive circuit failure phenomenon is got more and more, trace it to its cause be because this drive circuit adopt be H bridge construction drive, two input signals of this drive circuit can not be high simultaneously, if simultaneously for height will cause the direct conducting of brachium pontis, thus cause heavy current impact cause triode damage, drive capacitance fade serious; For high when now conventional scheme is different by Single Chip Microcomputer (SCM) program control inputs signal, but software is easily disturbed and produce the level of mistake, causes input signal simultaneously and is bridge arm direct pass time high, is not too reliable; Have a strong impact on the reliability of intelligent capacitor.
Utility model content
The purpose of this utility model solves above-mentioned Problems existing, provides a kind of and can prevent the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor of the same bridge arm direct pass of drive circuit.
The purpose of this utility model realizes as follows: the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor, comprise: power circuit, executive circuit, anti-direct circuit and drive circuit, described power circuit is used for providing power supply to described executive circuit, the output of described drive circuit connects described executive circuit, and the two ends of described anti-direct circuit are connected to the two ends of drive circuit; Described drive circuit has H-bridge drive circuit and drives; Described anti-direct circuit comprises: drive singal DR_ON, DR_OFF access the input of NAND gate U1A, the output of described NAND gate U1A connects the input with door U2A, U2B simultaneously respectively, and the output of NAND gate U1A accesses simultaneously and forms anti-direct circuit with door U2A, U2B input; Export with door U2A, U2B and be connected to H-bridge drive circuit.
Further prioritization scheme is, the anti-straight-through drive circuit of magnetic latching relay of above-mentioned a kind of Intelligent capacitor, described H-bridge drive circuit comprises: triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, wherein said triode Q1 and triode Q3 is connected on same branch road, described triode Q2 and triode Q4 is connected on another branch road, article two, branch circuit parallel connection is on driving power VCC, two branch roads are also parallel with between two branch roads, that the tie point be in series by diode D3 and diode resistance D5 is connected with the tie point that described triode Q1 and triode Q3 are connected on same branch road respectively, the tie point that the tie point that diode D4 and diode D6 are in series is connected on another branch road with described triode Q2 and triode Q4 is connected, described triode Q1 is connected with triode Q5 by resistance R6, described triode Q2 is connected with triode Q6 by resistance R5.
Further prioritization scheme is, the anti-straight-through drive circuit of magnetic latching relay of above-mentioned a kind of Intelligent capacitor, described power circuit comprises and connects source resistance R1, described resistance R1 output is connected with the input of diode D7 respectively at diode D1, the output of described diode D1 connects the input of electrochemical capacitor C1, the output of described diode D7 is connected to the input of electrochemical capacitor C1 by resistance R2, the tie point of described diode D7 and electrochemical capacitor C1 is parallel with pipeline section signal power source VCC1 by force.
Further prioritization scheme is, the anti-straight-through drive circuit of magnetic latching relay of above-mentioned a kind of Intelligent capacitor, described executive circuit is provided with magnetic latching relay K1.
Advantage of the present utility model: in circuit of the present utility model, magnetic latching relay is that the H-bridge drive circuit consisted of triode drives; in drive input signal, added a NAND gate carry out interlocking with door with two thus reach the object of the same bridge arm direct pass preventing H-bridge drive circuit simultaneously; both driving power is protected like this; also protect H bridge simultaneously and drive triode, make the drive circuit of Intelligent capacitor more reliable.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
The electrical block diagram that Fig. 1 is made up of executive circuit and anti-direct circuit;
Fig. 2 is circuit construction of electric power schematic diagram;
Fig. 3 is executive circuit structural representation.
Embodiment:
See shown in Fig. 1 to Fig. 3, the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor, comprise: power circuit, executive circuit, anti-direct circuit and drive circuit, described power circuit is used for providing power supply to described executive circuit, the output of described drive circuit connects described executive circuit, and the two ends of described anti-direct circuit are connected to the two ends of drive circuit; Described drive circuit has H-bridge drive circuit and drives; Described anti-direct circuit comprises: drive singal DR_ON, DR_OFF access the input of NAND gate U1A, the output of described NAND gate U1A connects the input with door U2A, U2B simultaneously respectively, and the output of NAND gate U1A accesses simultaneously and forms anti-direct circuit with door U2A, U2B input; Export with door U2A, U2B and be connected to H-bridge drive circuit.
Described H-bridge drive circuit comprises: triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, wherein said triode Q1 and triode Q3 is connected on same branch road, described triode Q2 and triode Q4 is connected on another branch road, article two, branch circuit parallel connection is on driving power VCC, two branch roads are also parallel with between two branch roads, that the tie point be in series by diode D3 and diode resistance D5 is connected with the tie point that described triode Q1 and triode Q3 are connected on same branch road respectively, the tie point that the tie point that diode D4 and diode D6 are in series is connected on another branch road with described triode Q2 and triode Q4 is connected, described triode Q1 is connected with triode Q5 by resistance R6, described triode Q2 is connected with triode Q6 by resistance R5.Described power circuit comprises and connects source resistance R1, described resistance R1 output is connected with the input of diode D7 respectively at diode D1, the output of described diode D1 connects the input of electrochemical capacitor C1, the output of described diode D7 is connected to the input of electrochemical capacitor C1 by resistance R2, the tie point of described diode D7 and electrochemical capacitor C1 is parallel with pipeline section signal power source VCC1 by force.Described executive circuit is provided with magnetic latching relay K1.
Drive singal DR_ON, DR_OFF access the input of NAND gate U1A, the input of access simultaneously and door U2A, U2B, and the output of NAND gate U1A accesses to input with door U2A, U2B simultaneously and forms anti-direct circuit; Input triode Q3, Q4, Q5, Q6 of being connected to H bridge and driving is exported with door U2A, U2B; Triode Q1, Q2, Q3, Q4 connect into brachium pontis, and diode D3, D4, D5, D6 form brachium pontis continuous current circuit; Power supply power, diode D1, D2, electrochemical capacitor C1 form driving power Vcc.Magnetic latching relay K1 is as actuator.
Operation principle:
When input signal DR_ON be high level, DR_OFF be low level time, NAND gate U1A exports as high level, export as high level with door U2A, export as low level with door U2B, thus triode Q4, Q5 conducting, triode Q3, Q6 end, and triode Q5 conducting causes triode Q1 conducting, triode Q6 cut-off causes triode Q2 to end, thus makes magnetic latching relay K1 bear forward voltage and conducting.
When input signal DR_ON be low level, DR_OFF be high level time, NAND gate U1A exports as high level, export as low level with door U2A, export as high level with door U2B, thus triode Q4, Q5 cut-off, triode Q3, Q6 conducting, triode Q5 cut-off causes triode Q1 to end, triode Q6 conducting causes triode Q2 conducting, thus makes magnetic latching relay K1 bear reverse voltage and disconnect.
When input signal DR_ON be high level, DR_OFF be high level time, NAND gate U1A exports as low level, export as low level with door U2A, export as low level with door U2B, thus triode Q4, Q5 cut-off, triode Q3, Q6 end, and triode Q5 cut-off causes triode Q1 to end, triode Q6 cut-off causes triode Q2 to end, thus makes magnetic latching relay K1 not bear voltage and keep current state.
When input signal DR_ON be low level, DR_OFF be low level time, NAND gate U1A exports as high level, export as low level with door U2A, export as low level with door U2B, thus triode Q4, Q5 cut-off, triode Q3, Q6 end, and triode Q5 cut-off causes triode Q1 to end, triode Q6 cut-off causes triode Q2 to end, thus makes magnetic latching relay K1 not bear voltage and keep current state.
From the above when input DR_ON, DR_OFF are high level, triode Q1 ~ Q6 is all cut-off state, does not have straight-through phenomenon and exists
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (4)
1. the anti-straight-through drive circuit of magnetic latching relay of Intelligent capacitor, it is characterized in that, comprise: power circuit, executive circuit, anti-direct circuit and drive circuit, described power circuit is used for providing power supply to described executive circuit, the output of described drive circuit connects described executive circuit, and the two ends of described anti-direct circuit are connected to the two ends of drive circuit; Described drive circuit has H-bridge drive circuit and drives; Described anti-direct circuit comprises: drive singal DR_ON, DR_OFF access the input of NAND gate U1A, the output of described NAND gate U1A connects the input with door U2A, U2B simultaneously respectively, and the output of NAND gate U1A accesses simultaneously and forms anti-direct circuit with door U2A, U2B input; Export with door U2A, U2B and be connected to H-bridge drive circuit.
2. the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor according to claim 1, it is characterized in that: described H-bridge drive circuit comprises: triode Q1, triode Q2, triode Q3, triode Q4, triode Q5, triode Q6, wherein said triode Q1 and triode Q3 is connected on same branch road, described triode Q2 and triode Q4 is connected on another branch road, article two, branch circuit parallel connection is on driving power VCC, two branch roads are also parallel with between two branch roads, that the tie point be in series by diode D3 and diode resistance D5 is connected with the tie point that described triode Q1 and triode Q3 are connected on same branch road respectively, the tie point that the tie point that diode D4 and diode D6 are in series is connected on another branch road with described triode Q2 and triode Q4 is connected, described triode Q1 is connected with triode Q5 by resistance R6, described triode Q2 is connected with triode Q6 by resistance R5.
3. the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor according to claim 1, it is characterized in that: described power circuit comprises and connects source resistance R1, described resistance R1 output is connected with the input of diode D7 respectively at diode D1, the output of described diode D1 connects the input of electrochemical capacitor C1, the output of described diode D7 is connected to the input of electrochemical capacitor C1 by resistance R2, the tie point of described diode D7 and electrochemical capacitor C1 is parallel with pipeline section signal power source VCC1 by force.
4. the anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor according to claim 1, is characterized in that: described executive circuit is provided with magnetic latching relay K1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705956.7U CN204349439U (en) | 2014-11-21 | 2014-11-21 | The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705956.7U CN204349439U (en) | 2014-11-21 | 2014-11-21 | The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor |
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| Publication Number | Publication Date |
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| CN204349439U true CN204349439U (en) | 2015-05-20 |
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| CN201420705956.7U Expired - Fee Related CN204349439U (en) | 2014-11-21 | 2014-11-21 | The anti-straight-through drive circuit of magnetic latching relay of a kind of Intelligent capacitor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245625A (en) * | 2018-11-21 | 2019-01-18 | 广东嘉腾机器人自动化有限公司 | One kind preventing brushless motor common conduct circuit |
| CN110165879A (en) * | 2019-05-16 | 2019-08-23 | 山东航天电子技术研究所 | A kind of magnetic torquer control circuit |
| CN110545034A (en) * | 2019-09-03 | 2019-12-06 | 广东美的制冷设备有限公司 | Drive circuit and air conditioner |
| WO2021004450A1 (en) * | 2019-07-09 | 2021-01-14 | 广东美的制冷设备有限公司 | Four-way valve electrical control board and air conditioner |
| CN113839550A (en) * | 2021-09-29 | 2021-12-24 | 陕西省地方电力（集团）有限公司 | Bridge arm interlocking circuit suitable for SiC MOSFET |
-
2014
- 2014-11-21 CN CN201420705956.7U patent/CN204349439U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245625A (en) * | 2018-11-21 | 2019-01-18 | 广东嘉腾机器人自动化有限公司 | One kind preventing brushless motor common conduct circuit |
| CN110165879A (en) * | 2019-05-16 | 2019-08-23 | 山东航天电子技术研究所 | A kind of magnetic torquer control circuit |
| WO2021004450A1 (en) * | 2019-07-09 | 2021-01-14 | 广东美的制冷设备有限公司 | Four-way valve electrical control board and air conditioner |
| CN110545034A (en) * | 2019-09-03 | 2019-12-06 | 广东美的制冷设备有限公司 | Drive circuit and air conditioner |
| CN110545034B (en) * | 2019-09-03 | 2020-10-20 | 广东美的制冷设备有限公司 | Drive circuit and air conditioner |
| CN113839550A (en) * | 2021-09-29 | 2021-12-24 | 陕西省地方电力（集团）有限公司 | Bridge arm interlocking circuit suitable for SiC MOSFET |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20150520 Termination date: 20161121 |