CN102709117B - Energy-saving driving circuit for relay - Google Patents
Energy-saving driving circuit for relay Download PDFInfo
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- CN102709117B CN102709117B CN201110075110.0A CN201110075110A CN102709117B CN 102709117 B CN102709117 B CN 102709117B CN 201110075110 A CN201110075110 A CN 201110075110A CN 102709117 B CN102709117 B CN 102709117B
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Abstract
The invention discloses an energy-saving driving circuit for a relay. The energy-saving driving circuit for the relay comprises a power processing module, a filter voltage regulator module, an energy-saving square wave output module and a load drive module, wherein a stable 12V voltage is obtained after a 12V voltage is processed by the power processing module; on one hand, the stable 12V voltage provides power to the load drive module, and on the other hand, the stable 12V voltage reaches the input end of the filter voltage regulator module; a 5V direct-current voltage which is obtained after the stable 12V voltage is processed by the filter voltage regulator module and an analogue input voltage are fed into the energy-saving square wave output module; a square wave signal is output from the energy-saving square wave output module and is loaded to the load drive module, so that the relay is closed; and after the relay is closed, a sampling voltage is obtained by the load drive module and is returned to the energy-saving square wave output module. After the relay is closed stably, the relay is kept in a closed state by using a voltage which is lower than the rated voltage of the relay; and when the resistance is not changed, the heating amount is reduced by reducing the voltage, the consumed power of the relay is only one tenth of the consumed power before energy is saved, electric energy is saved, and the service life of the relay is prolonged.
Description
Technical field
The present invention relates to a kind of Energy Saving Control field, especially relate to the energy-conservation driving control in relay circuit.
Background technology
Due to the larger buffer circuit of drive current control that can be less by relay, can utilize light current control forceful electric power, therefore in control field, use in a large number.
The general triode of traditional technology carrys out the conducting of control relay, in the circuit loop that uses relay, access triode, taking NPN triode as example, by the control loop of the collector and emitter cut-in relay circuit of NPN triode, the base stage of NPN triode connects control signal.In the time that control signal is high level, the conducting of NPN triode, electric current, by relay, makes actuating of relay adhesive; In the time that control signal is low level, NPN triode turn-offs, and relay electric-loss discharges.Owing to all needing triode in conducting state in the actuating of relay and keep-process, so that action is identical with maintenance electric current, and relay hold mode only needs less electric current, therefore above equipment, relay can produce more heat in the time of hold mode, easily cause Relay Aging, shortened the useful life of relay, wasted electric energy.
Summary of the invention
In order to overcome the above problems, improve useful life and the saves energy of relay, utilization of the present invention reduces the method for relay voltage at coil two ends in the time of hold mode, and a kind of relay energy saving driving circuit is provided.
The technical solution adopted in the present invention is, relay energy saving driving circuit, comprise power supply processing module, filtering voltage regulation module, energy-conservation square wave output module and load driver module, 12V voltage obtains stablizing 12V voltage after power supply processing module is processed, on the one hand for load driver module provides power supply, arrive on the other hand the input of filtering voltage regulation module, the 5V direct voltage obtaining after filtering voltage regulation resume module and analog input voltage are sent into energy-conservation square wave output module, energy-conservation square wave output module output square-wave signal is carried on load driver module, the sampled voltage of load driver module is sent energy-conservation square wave output module back to, described power supply processing module is made up of the first filter inductance and the first voltage stabilizing didoe.
Stablize 12V voltage after the first filter capacitor and the first current-limiting resistance, arrive on the one hand Voltage stabilizing module, the direct voltage of exporting 5V after Voltage stabilizing module is processed enters energy-saving square ripple output module after the second filter capacitor filtering; After processing, the first divider resistance, the second divider resistance, the second current-limiting resistance and the first electric capacity obtains analog input voltage on the other hand, ground connection after described the first divider resistance and the series connection of the second divider resistance, the first Capacitance parallel connection is at the two ends of the second divider resistance, one termination the first divider resistance of described the second current-limiting resistance and the second divider resistance connect altogether end, the analog input voltage of other end output is transported to energy-conservation square wave output module.
The 5V direct voltage obtaining after filtering voltage regulation resume module carries out dividing potential drop with the 3rd divider resistance after the 3rd current-limiting resistance, a part provides the voltage of 2.5V for the inverting input of the first comparator, and another part provides the voltage of 2.5V through the first resistance for the in-phase input end of the second comparator; The output of the first comparator is amplified resistance and is connect the in-phase input end of the first comparator by the first feedback ratio, connect the 5V direct voltage obtaining after filtering voltage regulation resume module by the first pull-up resistor, the inverting input that simultaneously arrives the second comparator through the 4th current-limiting resistance and delay circuit, described delay circuit is made up of delay circuit resistance, delay circuit diode and the second electric capacity.
The output of the second comparator connects the in-phase input end of the second comparator on the one hand by feedback resistance, enter on the other hand the in-phase input end that arrives the 3rd comparator by the second resistance and from the positive pole of the first diode, the negative pole of the first diode is connected with earth terminal by the 3rd resistance, connects by the second pull-up resistor
warp the 5V direct voltage obtaining after filtering voltage regulation resume module; The output of the 3rd comparator is amplified resistance and is connect the in-phase input end of the 3rd comparator on the one hand by the second feedback ratio, connect by the 3rd pull-up resistor the 5V direct voltage obtaining after filtering voltage regulation resume module on the other hand, the filter circuit output square-wave signal simultaneously forming by the 4th resistance and the 4th electric capacity; The positive pole of output termination second diode of the 4th comparator, the filter circuit that the negative pole of the second diode consists of the 5th resistance and the 3rd electric capacity on the one hand connects the inverting input of the 3rd comparator, connect on the other hand one end of reverse input end and the 7th resistance of the 4th comparator by the 6th resistance, the other end of the 7th resistance is connected with earth terminal, and the in-phase input end of the 4th comparator connects sampled voltage.
One termination of relay is stablized 12V voltage, and the other end connects the negative pole of 12V voltage by the DS utmost point of the second field effect transistor, the DS utmost point, sampling resistor and second filter inductance of the first field effect transistor successively; Together with the negative pole of the positive pole of the 3rd diode and the 4th diode, connect and stablize 12V voltage, the negative pole of the 3rd diode connects the G utmost point of the second field effect transistor by the 9th resistance, and what the positive pole of the 4th diode was succeeded electrical equipment and the second field effect transistor connects end altogether; After the second voltage stabilizing didoe, the 8th resistance, the 5th Capacitance parallel connection, the G utmost point of negative pole place termination second field effect transistor of the second voltage stabilizing didoe, the S utmost point of anodal place termination second field effect transistor of the second voltage stabilizing didoe, the G utmost point input square-wave signal of the first field effect transistor, the S utmost point output sampled voltage of the first field effect transistor.
Beneficial effect of the present invention is: after relay adhesive is stable, use lower than the voltage of relay rated voltage and carry out latching relay in attracting state, in the situation that resistance is constant, reduce the voltage of relay, thereby reduce electric current, reduce caloric value, relay consumed power is only 1/10 before energy-conservation, save electric energy, improved the useful life of relay.
Brief description of the drawings
Fig. 1 is system architecture diagram of the present invention;
Fig. 2 is the circuit theory diagrams of filtering voltage regulation module of the present invention;
Fig. 3 is the circuit theory diagrams of energy-conservation square wave output module of the present invention;
Fig. 4 is the circuit theory diagrams of load driver module of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, relay energy saving driving circuit, comprise power supply processing module 100, filtering voltage regulation module 200, energy-conservation square wave output module 300 and load driver module 400, 12V voltage+VDC obtains stablizing 12V voltage VCC+12 after power supply processing module 100 is processed, on the one hand for load driver module 400 provides power supply, arrive on the other hand the input of filtering voltage regulation module 200, the 5V direct voltage VCC+5 obtaining after filtering voltage regulation module 200 is processed and analog input voltage IN3+ are sent into energy-conservation square wave output module 300, energy-conservation square wave output module 300 is exported square-wave signal OUT and is carried on load driver module 400, the sampled voltage IN+4 of load driver module 400 sends energy-conservation square wave output module 300 back to.Described power supply processing module forms (as Fig. 4) by the first filter inductance L1 and the first voltage stabilizing didoe D9.
As shown in Figure 2, stablize 12V voltage VCC+12 after the first filter capacitor C6 and the first current-limiting resistance R21, arrive on the one hand Voltage stabilizing module
200, through Voltage stabilizing module
200after processing, the direct voltage VCC+5 of output 5V enters energy-saving square ripple output module 300 after the second filter capacitor C7 filtering; After processing, the first divider resistance R1, the second divider resistance R2, the second current-limiting resistance R18 and the first capacitor C 1 obtain analog input voltage IN3+ on the other hand, ground connection after described the first divider resistance R1 and the second divider resistance R2 series connection, the first capacitor C 1 is connected in parallel on the two ends of the second divider resistance R2, a termination first divider resistance R1 of described the second current-limiting resistance R18 and the second divider resistance R2 connect end altogether, and the analog input voltage IN3+ of other end output is transported to energy-conservation square wave output module 300.
As shown in Figure 3, energy-conservation square wave output module 300 comprises a chip being made up of four bit comparison amplifiers, the 5V direct voltage VCC+5 obtaining after filtering voltage regulation module 200 is processed carries out dividing potential drop with the 3rd divider resistance R5 after the 3rd current-limiting resistance R4, a part provides the voltage of 2.5V for the inverting input of the first comparator A, and another part provides the voltage of 2.5V through the first resistance R 20 for the in-phase input end of the second comparator B.The output of the first comparator A is amplified resistance R 3 and is connect the in-phase input end of the first comparator A by the first feedback ratio, meet the 5V direct voltage VCC+5 obtaining after filtering voltage regulation resume module by the first pull-up resistor R23, the inverting input that simultaneously arrives the second comparator B through the 4th current-limiting resistance R6 and delay circuit, described delay circuit is made up of delay circuit resistance R 7, delay circuit diode D2 and the second capacitor C 2.
In the time that the voltage of analog input voltage IN3+ is greater than 2.5V, the output output high potential (said high potential is 5V in IC field, and earth potential is 0V) of the first comparator A; In the time that the voltage of analog input voltage IN3+ is less than 2.5V, the output output electronegative potential of the first comparator A.In the time that the output of the first comparator A is high potential, arrive the inverting input of the second comparator B through current-limiting resistance R6 and delay circuit.
The output of the second comparator B connects the in-phase input end of the second comparator B on the one hand by feedback resistance R8, enter on the other hand the in-phase input end that arrives the 3rd comparator C by the second resistance R 19 and from the positive pole of the first diode D3, the negative pole of the first diode D3 is connected with earth terminal GND by the 3rd resistance R 10, meets the 5V direct voltage VCC+5 obtaining after filtering voltage regulation resume module by the second pull-up resistor R9; The output of the 3rd comparator C is amplified resistance R 11 and is connect the in-phase input end of the 3rd comparator C on the one hand by the second feedback ratio, meet by the 3rd pull-up resistor R22 the 5V direct voltage VCC+5 obtaining after filtering voltage regulation resume module on the other hand, the filter circuit output square-wave signal OUT simultaneously forming by the 4th resistance R 12 and the 4th capacitor C 4.The positive pole of output termination the second diode D4 of the 4th comparator D, the filter circuit that the negative pole of the second diode D4 consists of the 5th resistance R 13 and the 3rd capacitor C 3 on the one hand connects the inverting input of the 3rd comparator C, connect the reverse input end of the 4th comparator D and one end of the 7th resistance R 15 by the 6th resistance R 14 on the other hand, the other end of the 7th resistance R 15 is connected with earth terminal GND, and the in-phase input end of the 4th comparator D meets sampled voltage IN+4.
As shown in Figure 4,12V voltage+VDC obtains stablizing 12V voltage VCC+12 after the first filter inductance L1 and the processing of the first voltage stabilizing didoe, one termination of relay K 1 is stablized 12V voltage VCC+12, and the other end meets the negative pole-VDC of 12V voltage by the DS utmost point of the second field effect transistor Q2, the DS utmost point, sampling resistor Rs and the second filter inductance L2 of the first field effect transistor Q1 successively; Together with the negative pole of the positive pole of the 3rd diode D8 and the 4th diode D6, connect and stablize 12V voltage VCC+12, the negative pole of the 3rd diode D8 connects the G utmost point of the second field effect transistor Q2 by the 9th resistance R 17, what the positive pole of the 4th diode D6 was succeeded electrical equipment K1 and the second field effect transistor Q2 connects end altogether.After the second voltage stabilizing didoe D5, the 8th resistance R 16, the 5th capacitor C 5 parallel connections, the G utmost point of negative pole place termination the second field effect transistor Q2 of the second voltage stabilizing didoe D5, the S utmost point of anodal place termination the second field effect transistor Q2 of the second voltage stabilizing didoe D5, the G utmost point input square-wave signal OUT of the first field effect transistor Q1, the S utmost point output sampled voltage IN+4 of the first field effect transistor Q1.
Stablize 12V voltage VCC+12 through the 3rd diode D8, after the 9th resistance R 17 current limlitings, arrive by the second voltage stabilizing didoe D5, the voltage stabilizing circuit of the 5V that the 8th resistance R 16 and the 5th capacitor C 5 form, for the G utmost point of the second field effect transistor Q2 provides cut-in voltage.In the time that the G utmost point of the first field effect transistor Q1 has high potential, the DS utmost point conducting of the first field effect transistor Q1, electric current is through the DS utmost point of relay K 1, the second field effect transistor Q2, the DS utmost point of the first field effect transistor Q1, arrive again sample resistance RS and the second filter inductance L2, finally flow to the negative pole of power supply, relay K 1 adhesive; When the G of the first field effect transistor Q1 is very when electronegative potential, relay K 1 disconnects.When the adhesive of relay K 1 and the time of disconnection are in a short period of time time, when the adhesive of relay K 1 and the action of disconnection have little time action, relay K 1 is in adhesive hold mode, for relay K 1 coil provides the voltage of maintenance, plays energy-conserving action.
More than show and described general principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (1)
1. relay energy saving driving circuit, it is characterized in that: comprise power supply processing module, filtering voltage regulation module, energy-conservation square wave output module and load driver module, 12V voltage obtains stablizing 12V voltage after power supply processing module is processed, on the one hand for load driver module provides power supply, arrive on the other hand the input of filtering voltage regulation module, the 5V direct voltage obtaining after filtering voltage regulation resume module and analog input voltage are sent into energy-conservation square wave output module, energy-conservation square wave output module output square-wave signal is loaded on load driver module, the sampled voltage of load driver module is sent energy-conservation square wave output module back to, described power supply processing module is made up of the first filter inductance and the first voltage stabilizing didoe,
Stablize 12V voltage after the first filter capacitor and the first current-limiting resistance, arrive on the one hand Voltage stabilizing module, the direct voltage of exporting 5V after Voltage stabilizing module is processed enters energy-saving square ripple output module after the second filter capacitor filtering; After processing, the first divider resistance, the second divider resistance, the second current-limiting resistance and the first electric capacity obtains analog input voltage on the other hand, ground connection after described the first divider resistance and the series connection of the second divider resistance, the first Capacitance parallel connection is at the two ends of the second divider resistance, one termination the first divider resistance of described the second current-limiting resistance and the second divider resistance connect altogether end, the analog input voltage of other end output is transported to energy-conservation square wave output module;
The 5V direct voltage obtaining after filtering voltage regulation resume module carries out dividing potential drop with the 3rd divider resistance after the 3rd current-limiting resistance, a part provides the voltage of 2.5V for the inverting input of the first comparator, and another part provides the voltage of 2.5V through the first resistance for the in-phase input end of the second comparator; The output of the first comparator is amplified resistance and is connect the in-phase input end of the first comparator by the first feedback ratio, connect the 5V direct voltage obtaining after filtering voltage regulation resume module by the first pull-up resistor, the inverting input that simultaneously arrives the second comparator through the 4th current-limiting resistance and delay circuit, described delay circuit is made up of delay circuit resistance, delay circuit diode and the second electric capacity;
The output of the second comparator connects the in-phase input end of the second comparator on the one hand by feedback resistance, enter on the other hand the in-phase input end that arrives the 3rd comparator by the second resistance and from the positive pole of the first diode, the negative pole of the first diode is connected with earth terminal by the 3rd resistance, connects the 5V direct voltage obtaining after filtering voltage regulation resume module by the second pull-up resistor; The output of the 3rd comparator is amplified resistance and is connect the in-phase input end of the 3rd comparator on the one hand by the second feedback ratio, connect by the 3rd pull-up resistor the 5V direct voltage obtaining after filtering voltage regulation resume module on the other hand, the filter circuit output square-wave signal simultaneously forming by the 4th resistance and the 4th electric capacity; The positive pole of output termination second diode of the 4th comparator, the filter circuit that the negative pole of the second diode consists of the 5th resistance and the 3rd electric capacity on the one hand connects the inverting input of the 3rd comparator, connect on the other hand one end of reverse input end and the 7th resistance of the 4th comparator by the 6th resistance, the other end of the 7th resistance is connected with earth terminal, and the in-phase input end of the 4th comparator connects sampled voltage;
One termination of relay is stablized 12V voltage, and the other end connects the negative pole of 12V voltage by the DS utmost point of the second field effect transistor, the DS utmost point, sampling resistor and second filter inductance of the first field effect transistor successively; Together with the negative pole of the positive pole of the 3rd diode and the 4th diode, connect and stablize 12V voltage, the negative pole of the 3rd diode connects the G utmost point of the second field effect transistor by the 9th resistance, and what the positive pole of the 4th diode was succeeded electrical equipment and the second field effect transistor connects end altogether; After the second voltage stabilizing didoe, the 8th resistance, the 5th Capacitance parallel connection, the G utmost point of negative pole place termination second field effect transistor of the second voltage stabilizing didoe, the S utmost point of anodal place termination second field effect transistor of the second voltage stabilizing didoe, the G utmost point input square-wave signal of the first field effect transistor, the S utmost point output sampled voltage of the first field effect transistor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110075110.0A CN102709117B (en) | 2011-03-28 | 2011-03-28 | Energy-saving driving circuit for relay |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110075110.0A CN102709117B (en) | 2011-03-28 | 2011-03-28 | Energy-saving driving circuit for relay |
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| CN102709117A CN102709117A (en) | 2012-10-03 |
| CN102709117B true CN102709117B (en) | 2014-10-08 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106229217B (en) * | 2016-09-19 | 2019-02-15 | 三友联众集团股份有限公司 | A kind of energy-saving relay |
| WO2020151178A1 (en) * | 2019-01-21 | 2020-07-30 | 广东美的制冷设备有限公司 | Relay drive circuit and air conditioner |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1913307A (en) * | 2006-08-03 | 2007-02-14 | 王稳忠 | DC-AC two-use electronic saving module of low-voltage electrical equipment |
| CN2893904Y (en) * | 2005-12-01 | 2007-04-25 | 华为技术有限公司 | Energy-saving relay drive circuit device |
| CN201178067Y (en) * | 2008-03-14 | 2009-01-07 | 上海西重所重型机械成套有限公司 | Energy-saving noise-reducing apparatus for AC contactor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4513562B2 (en) * | 2004-12-28 | 2010-07-28 | アンデン株式会社 | Relay drive circuit |
| JP5162335B2 (en) * | 2008-05-30 | 2013-03-13 | 矢崎総業株式会社 | Relay control device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2893904Y (en) * | 2005-12-01 | 2007-04-25 | 华为技术有限公司 | Energy-saving relay drive circuit device |
| CN1913307A (en) * | 2006-08-03 | 2007-02-14 | 王稳忠 | DC-AC two-use electronic saving module of low-voltage electrical equipment |
| CN201178067Y (en) * | 2008-03-14 | 2009-01-07 | 上海西重所重型机械成套有限公司 | Energy-saving noise-reducing apparatus for AC contactor |
Non-Patent Citations (1)
| Title |
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| JP特开2009-289689A 2009.12.10 |
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