CN106997829A - A kind of drive circuit of magnetic latching relay of protection with voltage - Google Patents
A kind of drive circuit of magnetic latching relay of protection with voltage Download PDFInfo
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- CN106997829A CN106997829A CN201710317234.2A CN201710317234A CN106997829A CN 106997829 A CN106997829 A CN 106997829A CN 201710317234 A CN201710317234 A CN 201710317234A CN 106997829 A CN106997829 A CN 106997829A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/002—Monitoring or fail-safe circuits
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Abstract
The invention discloses a kind of drive circuit of magnetic latching relay of protection with voltage; including power circuit, capacitor charging/discharging controling circuit and voltage protection circuit; the power circuit for capacitor charging/discharging controling circuit to power; the capacitor charging/discharging controling circuit output end driving magnetic latching relay work; the voltage protection circuit improves the stability that capacitor charging/discharging controling circuit is controlled magnetic latching relay to protect capacitor charging/discharging controling circuit.The present invention it is simple in construction, stable and reliable for performance, can parallel multiplex control drive circuit, economize on resources.
Description
Technical field
The present invention relates to relay drive circuit technical field, the magnetic latching relay of specially a kind of protection with voltage drives
Dynamic circuit.
Background technology
Its contact opening and closing state of magnetic latching relay is kept as the magnetic force produced by permanent magnet.When touching for relay
When point needs the State Transferring opened or closed, it is only necessary to which, with just (anti-) DC pulse current excitation coil, relay is in moment
Just complete out the State Transferring with closing.When usual contact is in hold mode, coil needs not continue to be powered, only by permanent magnetic
The magnetic force of iron is with regard to that can maintain the state of relay constant.
Current drive circuit of magnetic latching relay has two methods, and one is to control drive circuit to complete by master cpu
The closed and disconnected of relay, when electric on CPU, function starts initialization, and it controls the I/O of drive circuit of magnetic latching relay
Mouth level is likely to be at nondeterministic statement, and now normally goes up the drive circuit of magnetic latching relay misoperation of electricity, it is likely that
Cause the damage of the even whole instrument of drive circuit, while this method occupies cpu resource；Another is single-coiled relay
Just anti-driven using single loop bridge drive circuit, double-wound relay uses double loop driving, in order to improve relay
Actuation time stability, driving voltage is typically using being several times as much as coil rating voltage, to ensure magnetic latching relay
Adhesive and the stabilization of release time, allow relay contact to be closed in the zero crossing of alternating voltage, have the disadvantage easily to bring machinery (to touch
Point) abrasion and easily damage triode when changing road, there is obvious defect in fine measuring instrument.
The content of the invention
In view of the shortcomings of the prior art, the invention provides a kind of drive circuit of magnetic latching relay of protection with voltage,
Solve the deficiencies in the prior art.
To realize object above, the present invention is achieved by the following technical programs：A kind of magnetic of protection with voltage is kept
Relay drive circuit, including：The capacitor charging/discharging controling circuit that output end is connected with magnetic latching relay；For capacitor charge and discharge
The power circuit that control circuit is powered；And be connected with capacitor charging/discharging controling circuit, to protect capacitor charge and discharge control electricity
The voltage protection circuit on road.
It is preferred that, the power circuit includes the first triode, the second triode, first resistor, second resistance, the 3rd electricity
Resistance, the 4th resistance, the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the six or two pole
Pipe, the 7th diode, the first voltage-stabiliser tube and the second voltage-stabiliser tube；Described first resistor one end and second resistance one end connect -15V electricity
Pressure, the first resistor other end is connected with the first transistor collector, first transistor emitter and the 7th diode
Negative pole is connected, and the second resistance other end and the first transistor base are connected with the first diode cathode, and the described 1st
Pole pipe positive pole is connected with the second diode cathode, and second diode cathode is connected with the first voltage-regulator diode positive pole, described
The pole negative pole ground connection of first voltage stabilizing two；Described 3rd resistor one end and the 4th resistance one end connect+15V voltages, the 4th resistance
The other end is connected with the second transistor collector, and second transistor emitter is connected with the 6th diode cathode, and described
Two transistor bases and the 3rd resistor other end are connected with the 5th diode cathode, the 5th diode cathode and the four or two
Pole pipe positive pole is connected, and the 4th diode cathode is connected with the 3rd diode cathode, the 3rd diode cathode and second
Voltage-regulator diode negative pole is connected, the second voltage-regulator diode plus earth；First triode is PNP type triode, institute
The second triode is stated for NPN type triode.
It is preferred that, the capacitor charging/discharging controling circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th
Metal-oxide-semiconductor, the 5th electric capacity, the 6th resistance, the 7th resistance, the 8th resistance, the 9th resistance, first switch and second switch；Described
One metal-oxide-semiconductor grid, the 4th metal-oxide-semiconductor grid and the 8th resistance one end are connected with first switch one end, the first metal-oxide-semiconductor drain electrode
It is connected with the 9th resistance one end with second switch one end, the 9th resistance other end is connected with the second metal-oxide-semiconductor source electrode, described
Second metal-oxide-semiconductor, which drains to drain with the 3rd metal-oxide-semiconductor, to be connected, and the 3rd metal-oxide-semiconductor source electrode is connected with the 4th metal-oxide-semiconductor source electrode, and described the
Two metal-oxide-semiconductor grids and the 6th resistance one end are connected with the 7th resistance one end, and the 7th resistance other end and the 8th resistance are another
One end is connected, and the 6th resistance other end and the 3rd metal-oxide-semiconductor grid are connected with second switch；Described second switch one end is also
It is connected with the 7th diode cathode, the 7th resistance other end is connected with the 4th diode cathode, the second metal-oxide-semiconductor source electrode
It is connected with the 6th diode cathode；First metal-oxide-semiconductor and the second metal-oxide-semiconductor are P-channel enhancement type metal-oxide-semiconductor, the 3rd MOS
Pipe and the 4th metal-oxide-semiconductor are the enhanced metal-oxide-semiconductor of N-channel.
It is preferred that, the voltage protection circuit includes the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electricity
Resistance and the 3rd triode；Described first electric capacity one end is connected with the 7th resistance other end, described second electric capacity one end and the 4th electricity
Hold one end with second switch one end to be connected, described 3rd electric capacity one end is connected with the 6th diode cathode, first electric capacity
The other end, the second electric capacity other end, the 3rd electric capacity other end and the 4th electric capacity other end are connected with the 4th metal-oxide-semiconductor source electrode；Institute
State the 5th resistance one end and the 3rd transistor emitter with the 4th metal-oxide-semiconductor source electrode to be connected, the 5th resistance other end and
Three transistor bases are grounded, and the 3rd transistor collector connects -15V voltages.
The invention provides a kind of drive circuit of magnetic latching relay of protection with voltage, possesses following beneficial effect：Should
The drive circuit of magnetic latching relay of protection with voltage is simple in construction, stable and reliable for performance, can parallel multiplex control drive circuit,
Economize on resources, be provided with voltage protection circuit, its output control voltage can be effectively protected, voltage is maintained at safe range
It is interior.
Brief description of the drawings
Fig. 1 is principle of the invention figure；
Fig. 2 is circuit diagram of the present invention.
In figure：T1, the first triode, T2, the second triode, T3, the 3rd triode, R1, first resistor, R2, the second electricity
Resistance, R3,3rd resistor, R4, the 4th resistance, R5, the 5th resistance, R6, the 6th resistance, R7, the 7th resistance, R8, the 8th resistance,
R8, the 9th resistance, D1, the first diode, D2, the second diode, D3, the 3rd diode, D4, the 4th diode, D5, the five or two
Pole pipe, D6, the 6th diode, D7, the 7th diode, Z1, the first voltage-stabiliser tube, Z2, the second voltage-stabiliser tube, Q1, the first metal-oxide-semiconductor, Q2,
Second metal-oxide-semiconductor, Q3, the 3rd metal-oxide-semiconductor, Q4, the 4th metal-oxide-semiconductor, C1, the first electric capacity, C2, the second electric capacity, C3, the 3rd electric capacity, C4,
Four electric capacity, C5, the 5th electric capacity, K0, first switch, K1, second switch.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of magnetic latching relay driving electricity of protection with voltage
Road, including：The capacitor charging/discharging controling circuit 2 that output end is connected with magnetic latching relay；Supplied for capacitor charging/discharging controling circuit 2
The power circuit 1 of electricity；And be connected with capacitor charging/discharging controling circuit 2, the voltage to protect capacitor charging/discharging controling circuit 2
Protection circuit 3.
The power circuit 1 includes the first triode T1, the second triode T2, first resistor R1, second resistance R2, the 3rd
Resistance R3, the 4th resistance R4, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the five or two
Pole pipe D5, the 6th diode D6, the 7th diode D7, the first voltage-stabiliser tube Z1 and the second voltage-stabiliser tube Z2；The first resistor R1 mono-
End and second resistance R2 one end connect -15V voltages, and the first resistor R1 other ends are connected with the first triode T1 colelctor electrodes,
The first triode T1 emitter stages are connected with the 7th diode D7 negative poles, the second resistance R2 other ends and the first triode
T1 base stages are connected with the first diode D1 negative poles, and the first diode D1 positive poles are connected with the second diode D2 negative poles, institute
State the second diode D2 positive poles with the first voltage-regulator diode Z1 positive poles to be connected, the first voltage-regulator diode Z1 negative poles ground connection；Institute
State 3rd resistor R3 one end and the 4th resistance R4 one end and connect+15V voltages, the 4th resistance R4 other ends and the second triode
T2 colelctor electrodes are connected, and the second triode T2 emitter stages are connected with the 6th diode D6 positive poles, the second triode T2 bases
Pole and the 3rd resistor R3 other ends are connected with the 5th diode D5 positive poles, the 5th diode D5 negative poles and the 4th diode
D4 positive poles be connected, the 4th diode D4 negative poles are connected with the 3rd diode D3 positive poles, the 3rd diode D3 negative poles and
Second voltage-regulator diode Z2 negative poles are connected, the second voltage-regulator diode Z2 plus earths；The first triode T1 is positive-negative-positive
Triode, the second triode T2 is NPN type triode.
The capacitor charging/discharging controling circuit 2 includes the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, the 3rd metal-oxide-semiconductor Q3, the 4th
Metal-oxide-semiconductor Q4, the 5th electric capacity C5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, first switch K0 and
Two switch K1；The first metal-oxide-semiconductor Q1 grids, the 4th metal-oxide-semiconductor Q4 grids and the 8th resistance R8 one end with first switch K0 mono-
End is connected, and the first metal-oxide-semiconductor Q1 drain electrodes and the 9th resistance R9 one end are connected with second switch K1 one end, the 9th resistance
The R9 other ends are connected with the second metal-oxide-semiconductor Q2 source electrodes, and the second metal-oxide-semiconductor Q2 drain electrode drains with the 3rd metal-oxide-semiconductor Q3 to be connected, and described the
Three metal-oxide-semiconductor Q3 source electrodes are connected with the 4th metal-oxide-semiconductor Q4 source electrodes, and the second metal-oxide-semiconductor Q2 grids and the 6th resistance R6 one end are with
Seven resistance R7 one end are connected, and the 7th resistance R7 other ends are connected with the 8th resistance R8 other ends, and the 6th resistance R6 is another
One end and the 3rd metal-oxide-semiconductor Q3 grids are connected with second switch K1；Described second switch K1 one end also with the 7th diode D7 just
Extremely it is connected, the 7th resistance R7 other ends are connected with the 4th diode D4 positive poles, the second metal-oxide-semiconductor Q2 source electrodes and the six or two
Pole pipe D6 negative poles are connected；The first metal-oxide-semiconductor Q1 and the second metal-oxide-semiconductor Q2 is P-channel enhancement type metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor
Q3 and the 4th metal-oxide-semiconductor Q4 are the enhanced metal-oxide-semiconductor of N-channel.
The voltage protection circuit 3 includes the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C4, the 5th
Resistance R5 and the 3rd triode T3；Described first electric capacity C1 one end is connected with the 7th resistance R7 other ends, the second electric capacity C2
One end and the 4th electric capacity C4 one end are connected with second switch K1 one end, and described 3rd electric capacity C3 one end is born with the 6th diode D6
Extremely it is connected, the first electric capacity C1 other ends, the second electric capacity C2 other ends, the 3rd electric capacity C3 other ends and the 4th electric capacity C4 are another
End is connected with the 4th metal-oxide-semiconductor Q4 source electrodes；Described 5th resistance R5 one end and the 3rd triode T3 emitter stages with the 4th metal-oxide-semiconductor
Q4 source electrodes are connected, and the 5th resistance R5 other ends and the 3rd triode T3 base stages are grounded, the 3rd triode T3 current collections
Pole connects -15V voltages.
Operation instruction：As shown in Fig. 2 the first metal-oxide-semiconductor Q1 source electrodes are connected with the pin of magnetic latching relay first, the described 4th
Metal-oxide-semiconductor Q4 drain electrodes are connected with the pin of magnetic latching relay the 8th；By first switch K1 and second switch K2 change magnetic keep after
The state of electrical equipment.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or deposited between operating
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability is included, so that process, method, article or equipment including a series of key elements not only will including those
Element, but also other key elements including being not expressly set out, or also include being this process, method, article or equipment
Intrinsic key element.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of drive circuit of magnetic latching relay of protection with voltage, it is characterised in that including：
The capacitor charging/discharging controling circuit that output end is connected with magnetic latching relay；
The power circuit powered for capacitor charging/discharging controling circuit；And
It is connected with capacitor charging/discharging controling circuit, the voltage protection circuit to protect capacitor charging/discharging controling circuit.
2. the drive circuit of magnetic latching relay of a kind of protection with voltage according to claim 1, it is characterised in that described
Power circuit includes the first triode, the second triode, first resistor, second resistance, 3rd resistor, the 4th resistance, the one or two
It is pole pipe, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, first steady
Pressure pipe and the second voltage-stabiliser tube；
Described first resistor one end and second resistance one end connect -15V voltages, the first resistor other end and the first triode
Colelctor electrode is connected, and first transistor emitter is connected with the 7th diode cathode, the second resistance other end and first
Transistor base is connected with the first diode cathode, and first diode cathode is connected with the second diode cathode, described
Second diode cathode is connected with the first voltage-regulator diode positive pole, the first voltage-regulator diode negative pole ground connection；
Described 3rd resistor one end and the 4th resistance one end connect+15V voltages, the 4th resistance other end and the second triode
Colelctor electrode is connected, and second transistor emitter is connected with the 6th diode cathode, second transistor base and the 3rd
The resistance other end is connected with the 5th diode cathode, and the 5th diode cathode is connected with the 4th diode cathode, described
4th diode cathode is connected with the 3rd diode cathode, the 3rd diode cathode and the second voltage-regulator diode negative pole phase
Even, the second voltage-regulator diode plus earth；
First triode is PNP type triode, and second triode is NPN type triode.
3. the drive circuit of magnetic latching relay of a kind of protection with voltage according to claim 1, it is characterised in that described
Capacitor charging/discharging controling circuit includes the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor, the 4th metal-oxide-semiconductor, the 5th electric capacity, the 6th electricity
Resistance, the 7th resistance, the 8th resistance, the 9th resistance, first switch and second switch；
The first metal-oxide-semiconductor grid, the 4th metal-oxide-semiconductor grid and the 8th resistance one end are connected with first switch one end, and described
One metal-oxide-semiconductor drains and the 9th resistance one end is connected with second switch one end, the 9th resistance other end and the second metal-oxide-semiconductor source
Extremely it is connected, the second metal-oxide-semiconductor drain electrode is connected with the drain electrode of the 3rd metal-oxide-semiconductor, the 3rd metal-oxide-semiconductor source electrode and the 4th metal-oxide-semiconductor source electrode
Be connected, the second metal-oxide-semiconductor grid and the 6th resistance one end are connected with the 7th resistance one end, the 7th resistance other end and
The 8th resistance other end is connected, and the 6th resistance other end and the 3rd metal-oxide-semiconductor grid are connected with second switch；
Described second switch one end is also connected with the 7th diode cathode, the 7th resistance other end and the 4th diode cathode
It is connected, the second metal-oxide-semiconductor source electrode is connected with the 6th diode cathode；
First metal-oxide-semiconductor and the second metal-oxide-semiconductor are P-channel enhancement type metal-oxide-semiconductor, and the 3rd metal-oxide-semiconductor and the 4th metal-oxide-semiconductor are
The enhanced metal-oxide-semiconductor of N-channel.
4. the drive circuit of magnetic latching relay of a kind of protection with voltage according to claim 1, it is characterised in that described
Voltage protection circuit includes the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th resistance and the 3rd triode；
Described first electric capacity one end is connected with the 7th resistance other end, and described second electric capacity one end and the 4th electric capacity one end are with
Two switch one end are connected, and described 3rd electric capacity one end is connected with the 6th diode cathode, the first electric capacity other end, the second electricity
Hold the other end, the 3rd electric capacity other end and the 4th electric capacity other end with the 4th metal-oxide-semiconductor source electrode to be connected；
Described 5th resistance one end and the 3rd transistor emitter are connected with the 4th metal-oxide-semiconductor source electrode, and the 5th resistance is another
End and the 3rd transistor base are grounded, and the 3rd transistor collector connects -15V voltages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317234.2A CN106997829B (en) | 2017-05-08 | 2017-05-08 | A kind of drive circuit of magnetic latching relay of protection with voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710317234.2A CN106997829B (en) | 2017-05-08 | 2017-05-08 | A kind of drive circuit of magnetic latching relay of protection with voltage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106997829A true CN106997829A (en) | 2017-08-01 |
| CN106997829B CN106997829B (en) | 2019-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710317234.2A Active CN106997829B (en) | 2017-05-08 | 2017-05-08 | A kind of drive circuit of magnetic latching relay of protection with voltage |
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| CN (1) | CN106997829B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110112038A (en) * | 2019-06-11 | 2019-08-09 | 骆驼集团武汉光谷研发中心有限公司 | A kind of relay drive circuit |
| CN110379676A (en) * | 2019-08-13 | 2019-10-25 | 南京雁展科技有限公司 | A kind of vehicle-mounted relay energy-saving control circuit of protection with voltage |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599384B (en) * | 2020-11-19 | 2021-08-31 | 深圳市优优绿能电气有限公司 | Magnetic latching relay drive circuit |
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| CN102723238A (en) * | 2012-06-21 | 2012-10-10 | 华为技术有限公司 | Relay drive circuit and control method and system thereof |
| CN203072027U (en) * | 2012-12-05 | 2013-07-17 | 谢青树 | Network security information transceiver |
| CN205050318U (en) * | 2015-09-21 | 2016-02-24 | 重庆宁来科贸有限公司 | Anti -theft device of trouble self -checking |
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| CN2632839Y (en) * | 2003-06-27 | 2004-08-11 | 武东胜 | Electric saving relay driven by high-low level control pulse current |
| CN2682730Y (en) * | 2003-11-26 | 2005-03-02 | 郭发源 | Low-voltage starting device |
| CN102723238A (en) * | 2012-06-21 | 2012-10-10 | 华为技术有限公司 | Relay drive circuit and control method and system thereof |
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| CN110112038A (en) * | 2019-06-11 | 2019-08-09 | 骆驼集团武汉光谷研发中心有限公司 | A kind of relay drive circuit |
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| CN110379676A (en) * | 2019-08-13 | 2019-10-25 | 南京雁展科技有限公司 | A kind of vehicle-mounted relay energy-saving control circuit of protection with voltage |
| CN110379676B (en) * | 2019-08-13 | 2024-04-26 | 南京雁展科技有限公司 | Vehicle-mounted relay energy-saving control circuit with voltage protection |
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| Publication number | Publication date |
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| CN106997829B (en) | 2019-02-15 |
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Effective date of registration: 20230519 Address after: 213000 No. 1, Xinzhu Road, Xinbei District, Changzhou City, Jiangsu Province Patentee after: CHANGZHOU TONGHUI ELECTRONICS Co.,Ltd. Address before: 213001 No. 1801 Wu Cheng Road, Changzhou, Jiangsu Patentee before: JIANGSU University OF TECHNOLOGY |