CN203787351U - Relay drive circuit - Google Patents

Relay drive circuit Download PDF

Info

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
Authority
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
Application number
CN201320879678.2U
Other languages
Chinese (zh)
Inventor
方桦
何志明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Real Design Intelligent Technology Co Ltd
Original Assignee
Guangdong Real Design Intelligent Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Real Design Intelligent Technology Co Ltd filed Critical Guangdong Real Design Intelligent Technology Co Ltd
Priority to CN201320879678.2U priority Critical patent/CN203787351U/en
Application granted granted Critical
Publication of CN203787351U publication Critical patent/CN203787351U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • 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

A kind of relay drive circuit
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.
CN201320879678.2U 2013-12-30 2013-12-30 Relay drive circuit Expired - Lifetime CN203787351U (en)

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)

* Cited by examiner, † Cited by third party
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
CN105047477A (en) * 2015-06-15 2015-11-11 成都广迈科技有限公司 Relay energy-saving control circuit
CN105047476A (en) * 2015-06-15 2015-11-11 成都广迈科技有限公司 Low-power-consumption relay 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

Cited By (10)

* Cited by examiner, † Cited by third party
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
CN105047477A (en) * 2015-06-15 2015-11-11 成都广迈科技有限公司 Relay energy-saving control circuit
CN105047476A (en) * 2015-06-15 2015-11-11 成都广迈科技有限公司 Low-power-consumption relay 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

Similar Documents

Publication Publication Date Title
CN203787351U (en) Relay drive circuit
CN205029559U (en) Power switching circuit
CN104679087B (en) Vehicle-mounted low differential voltage linear voltage stabilizer circuit and low-voltage compensation circuit thereof
CN102858049A (en) Over-current protection sampling circuit, light-emitting diode (LED) drive circuit and LED lamp
CN103312166A (en) Power management circuit and electronic device
CN105762781A (en) Surge current control circuit and power supply device
CN103023314B (en) Buck-boost switching power supply and controller thereof
CN204442174U (en) A kind of power circuit and electronic product
CN105162308A (en) Dummy load control circuit and flyback switching power supply circuit
CN202759379U (en) Voltage stabilizing circuit
CN102955550B (en) A kind of rack-mounted server system
CN104682702A (en) Power circuit and electronic product
CN103312155A (en) Voltage regulator circuit and electronic device
CN202374179U (en) Voltage-stabilizing circuit
CN203014675U (en) Buck-boost switching power supply and controller thereof
CN201497922U (en) Constant current protective device
CN105515357A (en) DCDC current-limiting circuit
CN205490144U (en) Constant voltage power supply controller
CN104135150A (en) Power circuit
CN204559395U (en) A kind of lowering and stabilizing blood pressure power circuit
CN203466727U (en) Miniwatt voltage stabilizing source circuit
CN203661017U (en) Comparator realization circuit
CN203027147U (en) Parallel control circuit of switching power supply and output parallel circuit system of switching power supply
CN204065896U (en) A kind of mu balanced circuit
CN203027121U (en) Power switch and application circuit based on same

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