CN203787351U - Relay drive circuit - Google Patents
Relay drive circuit Download PDFInfo
- Publication number
- CN203787351U CN203787351U CN201320879678.2U CN201320879678U CN203787351U CN 203787351 U CN203787351 U CN 203787351U CN 201320879678 U CN201320879678 U CN 201320879678U CN 203787351 U CN203787351 U CN 203787351U
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- CN
- China
- Prior art keywords
- relay
- drive circuit
- circuit
- triode
- resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 15
- 230000000087 stabilizing effect Effects 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000009418 renovation Methods 0.000 description 1
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- Relay Circuits (AREA)
Abstract
The utility model is a relay drive circuit comprising a relay maintaining voltage magnitude selection circuit (1) and a drive circuit (2). An output end of the drive circuit (2) is connected with a signal input end of the relay maintaining voltage magnitude selection circuit (1). A signal output end of the relay maintaining voltage magnitude selection circuit (1) is connected with a relay coil. The relay maintaining voltage magnitude selection circuit (1) comprises a triode Q1, a Zener diode D1 and a capacitor C1. The relay drive circuit utilizes the relay maintaining voltage magnitude selection circuit consisting of the Zener diode D1 and the capacitor C1 to select the magnitude of maintaining voltage of a relay, and enables the relay to work at the maintaining voltage after pick-up, so that effects that self power consumption of the relay is reduced, calorific value is reduced, and the service life of the relay is prolonged are achieved. The relay drive circuit is few in circuit components, simple in circuit, high in reliability, wide in application range, low in cost and convenient to use, is practical, and can be widely used.
Description
Technical field
The utility model is a kind of relay drive circuit, belongs to the renovation technique of relay drive circuit.
Background technology
The most nominal pick-up voltages that adopt relay of the type of drive of relay are directly supplied with relay at present.The shortcoming of this scheme is that relay is operated under higher load condition always, causes relay oneself power consumption large, and caloric value is large, so that the useful life of reducing relay.
Summary of the invention
The purpose of this utility model is to consider the problems referred to above and a kind of low cost, low-power consumption, high reliability is provided and can extends the relay relay drive circuit in useful life.The utility model not only save space, cost low, use safe, easy to operate, long service life.
The technical solution of the utility model is: relay drive circuit of the present utility model, include relay and maintain voltage swing selection circuit, drive circuit, wherein the output of drive circuit is connected with the signal input part that relay maintains voltage swing selection circuit, and relay maintains voltage swing and selects the signal output part of circuit to be connected with relay coil.
Above-mentioned relay maintains voltage swing and selects circuit to include triode Q1, voltage stabilizing didoe D1, capacitor C 1, and one end of relay coil is connected with one end of capacitor C 1 with the negative electrode of voltage stabilizing didoe D1; The other end of the anode of voltage stabilizing didoe D1 and capacitor C 1 is connected with the collector electrode of triode Q1, and the emitter of triode Q1 is connected to earth terminal GND, and the base stage of triode Q1 is connected with drive circuit.
Above-mentioned drive circuit includes resistance R 1, resistance R 2, and control signal CONTROL is connected with one end of resistance R 1; The other end of resistance R 1 is connected with one end of resistance R 2 and is connected with the base stage of triode Q1; The other end of the emitter of triode Q1 and resistance R 2 is connected to earth terminal GND.
The utility model maintains the structure of voltage swing selection circuit and drive circuit because employing comprises relay, the relay that the utility model consists of voltage stabilizing didoe D1 and capacitor C 1 maintains voltage swing and selects circuit to select the voltage swing that maintains of relay, make to be operated in and to maintain under voltage after relay adhesive, to reach the oneself power consumption that reduces relay, reduce caloric value, the effect that extends the useful life of relay, the utility model circuit element is few, circuit is simple, reliability is high, applied widely, the utility model is a kind of low cost, the convenient and practical relay drive circuit that can extensively be suitable for.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
Embodiment:
Schematic diagram of the present utility model as shown in Figure 1, relay drive circuit of the present utility model, include relay and maintain voltage swing selection circuit 1, drive circuit 2, wherein the output of drive circuit 2 is connected with the signal input part that relay maintains voltage swing selection circuit 1, and relay maintains voltage swing and selects the signal output part of circuit 1 to be connected with the coil of relay R EL1.
In the present embodiment, above-mentioned relay maintains voltage swing and selects circuit 1 to include triode Q1, voltage stabilizing didoe D1, capacitor C 1, and one end of relay coil is connected with one end of capacitor C 1 with the negative electrode of voltage stabilizing didoe D1; The other end of the anode of voltage stabilizing didoe D1 and capacitor C 1 is connected with the collector electrode of triode Q1, and the emitter of triode Q1 is connected to earth terminal GND, and the base stage of triode Q1 is connected with drive circuit 2.
In the present embodiment, above-mentioned drive circuit 2 includes resistance R 1, resistance R 2, and control signal CONTROL is connected with one end of resistance R 1; The other end of resistance R 1 is connected with one end of resistance R 2 and is connected with the base stage of triode Q1; The other end of the emitter of triode Q1 and resistance R 2 is connected to earth terminal GND.
Operation principle of the present utility model is as follows: with reference to Fig. 1, select the voltage of voltage regulation of voltage-stabiliser tube D1 to be: the voltage of voltage regulation that vdd voltage deducts voltage-stabiliser tube D1 is greater than the voltage that maintains of relay R EL1, selecting the capacity of capacitor C 1 is electric current and the time required while meeting relay adhesive, in the time of the adhesive of needs relay, control signal CONTROL is become high level and is made triode Q1 conducting from low level. because the voltage at capacitor C 1 two ends can not suddenly change, so be equivalent on coil that direct voltage VDD is added in relay, make relay have enough large the suction-combining force to make relay adhesive. while being elevated to gradually the voltage of voltage regulation of voltage stabilizing didoe D1 along with capacitor C 1 both end voltage, thereby voltage stabilizing didoe D1 starts working and makes the voltage that bear at relay two ends is the voltage of voltage regulation that vdd voltage deducts voltage stabilizing two utmost points. make to be operated in and to maintain under voltage after relay adhesive, reduce caloric value and extend the relay object in useful life to reach reduction relay oneself power consumption.
Certainly, above-mentioned explanation is the restriction to this patent not, and this patent is also not limited only to above-mentioned giving an example, and variation, remodeling, interpolation and the replacement that the art those of ordinary skill is made in the essential scope of this patent also belongs to the protection range of this patent.
Claims (2)
1. a relay drive circuit, it is characterized in that including relay and maintain voltage swing selection circuit (1), drive circuit (2), wherein the output of drive circuit (2) is connected with the signal input part that relay maintains voltage swing selection circuit (1), and relay maintains voltage swing and selects the signal output part of circuit (1) to be connected with relay coil; Above-mentioned relay maintains voltage swing and selects circuit (1) to include triode Q1, voltage stabilizing didoe D1, capacitor C 1, and one end of relay coil is connected with one end of capacitor C 1 with the negative electrode of voltage stabilizing didoe D1; The other end of the anode of voltage stabilizing didoe D1 and capacitor C 1 is connected with the collector electrode of triode Q1, and the emitter of triode Q1 is connected to earth terminal GND, and the base stage of triode Q1 is connected with drive circuit (2).
2. relay drive circuit according to claim 1, is characterized in that above-mentioned drive circuit (2) includes resistance R 1, resistance R 2, and control signal CONTROL is connected with one end of resistance R 1; The other end of resistance R 1 is connected with one end of resistance R 2 and is connected with the base stage of triode Q1; The other end of the emitter of triode Q1 and resistance R 2 is connected to earth terminal GND.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879678.2U CN203787351U (en) | 2013-12-30 | 2013-12-30 | Relay drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320879678.2U CN203787351U (en) | 2013-12-30 | 2013-12-30 | Relay drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787351U true CN203787351U (en) | 2014-08-20 |
Family
ID=51323510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320879678.2U Expired - Lifetime CN203787351U (en) | 2013-12-30 | 2013-12-30 | Relay drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787351U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916492A (en) * | 2015-06-15 | 2015-09-16 | 成都广迈科技有限公司 | Relay control circuit |
| CN104916493A (en) * | 2015-06-15 | 2015-09-16 | 成都广迈科技有限公司 | Double-path driven relay control circuit |
| CN104934263A (en) * | 2015-06-15 | 2015-09-23 | 成都广迈科技有限公司 | Relay control circuit capable of reducing power consumption |
| CN105047476A (en) * | 2015-06-15 | 2015-11-11 | 成都广迈科技有限公司 | Low-power-consumption relay control circuit |
| CN105047477A (en) * | 2015-06-15 | 2015-11-11 | 成都广迈科技有限公司 | Relay energy-saving control circuit |
| CN109494119A (en) * | 2018-11-30 | 2019-03-19 | 佛山市中格威电子有限公司 | A kind of relay driving protection circuit for household electrical appliances |
| CN111477500A (en) * | 2020-03-31 | 2020-07-31 | 南京优倍电气有限公司 | Starting circuit for safety relay compatible with three reset modes |
| CN111508775A (en) * | 2020-03-17 | 2020-08-07 | 厦门芯阳科技股份有限公司 | Serial relay driving circuit and driving method |
| CN114325085A (en) * | 2021-12-30 | 2022-04-12 | 江苏林洋能源股份有限公司 | Electric energy meter and method supporting dynamic energy consumption management |
-
2013
- 2013-12-30 CN CN201320879678.2U patent/CN203787351U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104916492A (en) * | 2015-06-15 | 2015-09-16 | 成都广迈科技有限公司 | Relay control circuit |
| CN104916493A (en) * | 2015-06-15 | 2015-09-16 | 成都广迈科技有限公司 | Double-path driven relay control circuit |
| CN104934263A (en) * | 2015-06-15 | 2015-09-23 | 成都广迈科技有限公司 | Relay control circuit capable of reducing power consumption |
| CN105047476A (en) * | 2015-06-15 | 2015-11-11 | 成都广迈科技有限公司 | Low-power-consumption relay control circuit |
| CN105047477A (en) * | 2015-06-15 | 2015-11-11 | 成都广迈科技有限公司 | Relay energy-saving control circuit |
| CN109494119A (en) * | 2018-11-30 | 2019-03-19 | 佛山市中格威电子有限公司 | A kind of relay driving protection circuit for household electrical appliances |
| CN111508775A (en) * | 2020-03-17 | 2020-08-07 | 厦门芯阳科技股份有限公司 | Serial relay driving circuit and driving method |
| CN111477500A (en) * | 2020-03-31 | 2020-07-31 | 南京优倍电气有限公司 | Starting circuit for safety relay compatible with three reset modes |
| CN111477500B (en) * | 2020-03-31 | 2022-03-25 | 南京优倍电气技术有限公司 | Starting circuit for safety relay compatible with three reset modes |
| CN114325085A (en) * | 2021-12-30 | 2022-04-12 | 江苏林洋能源股份有限公司 | Electric energy meter and method supporting dynamic energy consumption management |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |