CN206312827U - AC relay over-zero action controls circuit - Google Patents
AC relay over-zero action controls circuit Download PDFInfo
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- CN206312827U CN206312827U CN201621416196.3U CN201621416196U CN206312827U CN 206312827 U CN206312827 U CN 206312827U CN 201621416196 U CN201621416196 U CN 201621416196U CN 206312827 U CN206312827 U CN 206312827U
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Abstract
The utility model is related to a kind of AC relay over-zero action control circuit.AC relay over-zero action control circuit includes processor, relay drive circuit and signal isolation circuit；Processor is connected with relay drive circuit and signal isolation circuit respectively, relay drive circuit is connected with signal isolation circuit, signal isolation circuit is used to be converted into the alternating current of relay shutdown moment the electric signal of isolation, and by electric signal transmission to processor；Processor is used for by the magnet exciting coil of relay drive circuit control relay, and the electric signal of detection signal isolation circuit transmission calculates and preserve the action delay time of relay.Above-mentioned AC relay over-zero action controls circuit, realize the action delay time that relay is checked in electrical environment is exchanged, such that it is able to control relay in exchange zero point conducting, without can just extend relay service life from antisurge relay high, realize high precision, small volume, low cost, the characteristics of reliable and stable.
Description
Technical field
The utility model is related to electronic circuit technology field, more particularly to a kind of AC relay over-zero action control electricity
Road.
Background technology
With the continuous improvement of industrialized level, intelligent household appliances are also more and more.Intelligent household appliances are also got over
Carry out the control of more too busy to get away relay.Because household appliances are by mains-supplied, the break-make of Control alternating current is particularly bright
It is aobvious.But the service life of relay has a strong impact on the service life of product.In order to extend the service life of product, here is to pass
The solution of system, but all there is certain defect.
1st, controllable silicon substitutes relay, and without machinery and the aging problem in contact, but controllable silicon cannot bear to switch wink
Between dash current.
2nd, from the relay of more high standard, but the material cost pressure for bringing.
3rd, action delay time of busy relay one by one, it is allowed to be turned in zero point, but current technology relay
The action delay time can only in DC environment, if relay is applied in communication environment, the action delay time can only online under
Gone to test one by one and match with direct current, this undoubtedly brings huge cost of labor.
Utility model content
Based on this, it is necessary to for the action delay time of busy relay one by one, allow its zero point conducting it is artificial into
This technical problem high, there is provided a kind of AC relay over-zero action controls circuit.
A kind of AC relay over-zero action controls circuit, and AC relay over-zero action control circuit is including processing
Device, relay drive circuit and signal isolation circuit；The processor respectively with the relay drive circuit and described
Signal isolation circuit is connected, and the relay drive circuit is connected with the signal isolation circuit, and the signal isolation circuit is used
In the electric signal that the alternating current of relay shutdown moment is converted into isolation, and by electric signal transmission to the processor；It is described
Processor is used for by the magnet exciting coil of the relay drive circuit control relay, detects the signal isolation circuit transmission
Electric signal, calculate and preserve the action delay time of relay.
Wherein in one embodiment, the relay drive circuit includes on-off circuit and one-way conduction circuit, described
The input of on-off circuit is connected with the delays time to control end of the processor, and the output end of the on-off circuit is used to connect described
The first input end of the magnet exciting coil of relay, the input of the one-way conduction circuit connects with the output end of the on-off circuit
Connect, the output end of the one-way conduction circuit is additionally operable to connect the second input of the magnet exciting coil of the relay.
Wherein in one embodiment, the on-off circuit includes transistor Q1, and the one-way conduction circuit includes two poles
Pipe D6；The base stage of transistor Q1 is connected with the delays time to control end of the processor, grounded emitter；The anode of diode D6 and crystalline substance
The colelctor electrode connection of body pipe Q1, negative electrode connection power input VCC；The colelctor electrode of transistor Q1 is additionally operable to connect the relay
Magnet exciting coil first input end, the anode of diode D6 is additionally operable to connect the second input of the magnet exciting coil of the relay
End.
Wherein in one embodiment, the on-off circuit also includes resistance R27 and resistance R28, the base stage of transistor Q1
It is grounded by resistance R28 and is connected with the delays time to control end of the processor by resistance R27.
Wherein in one embodiment, the signal isolation circuit includes rectification circuit, constant-current circuit and photoelectric coupling electricity
Road, the first power input of the rectification circuit is used to be input into live wire by the output end of the magnet exciting coil of the relay
End connection, the second source input of the rectification circuit is used to connect zero line input；The input of the constant-current circuit with
The output end connection of the rectification circuit, the output end of the constant-current circuit is connected with the input of the photoelectric coupling circuit；
The output end of the photoelectric coupling circuit is connected with the motion end of the processor.
Wherein in one embodiment, the rectification circuit includes rectifier bridge BD2, and the constant-current circuit includes voltage-stabiliser tube
ZD1 and metal-oxide-semiconductor Q3, the photoelectric coupling circuit includes that photoelectrical coupler OP1, the first power input AC1 of rectifier bridge BD2 are used
It is connected with live wire input L in the output end of the magnet exciting coil by the relay, the second source input of rectifier bridge BD2
AC2 is used to connect zero line input N；The first voltage output end of rectifier bridge BD2 is connected with the anode of photoelectrical coupler OP1；It is whole
The second voltage output end of stream bridge BD2 is connected with the anode of voltage-stabiliser tube ZD1 and the source electrode of metal-oxide-semiconductor Q3 respectively；The grid of metal-oxide-semiconductor Q3
Pole is connected with the negative electrode of voltage-stabiliser tube ZD1, and the drain electrode of metal-oxide-semiconductor Q3 is connected with the negative electrode of photoelectrical coupler OP1；Photoelectrical coupler OP1
Colelctor electrode be connected with the motion end of the processor, the grounded emitter of photoelectrical coupler OP1.
Wherein in one embodiment, the constant-current circuit also includes resistance R19, resistance R20, resistance R22, resistance R24,
The negative electrode of voltage-stabiliser tube ZD1 is connected by resistance R20, resistance R19 with the anode of photoelectrical coupler OP1, also, voltage-stabiliser tube ZD1
Negative electrode is also connected by resistance R22 with the anode of voltage-stabiliser tube ZD1；The second voltage output end of rectifier bridge BD2 by resistance R24 with
The source electrode connection of metal-oxide-semiconductor Q3.
Wherein in one embodiment, the photoelectric coupling circuit also includes resistance R25；The current collection of photoelectrical coupler OP1
Pole connects power input VCC by resistance R25.
Wherein in one embodiment, the rectification circuit also includes fuse F2, first power input of rectifier bridge BD2
End AC1 is connected by fuse F2 with the output end of the magnet exciting coil of the relay.
Wherein in one embodiment, the processor is single-chip microcomputer.
Above-mentioned AC relay over-zero action controls circuit, realizes the action that relay is checked in electrical environment is exchanged
Delay time, such that it is able to control relay in exchange zero point conducting, without can just extend relay from antisurge relay high
Device service life, realizes high precision, small volume, low cost, the characteristics of reliable and stable.
Brief description of the drawings
Fig. 1 is the schematic block diagram of AC relay over-zero action control circuit in an implementation method；
Fig. 2 is the circuit diagram of AC relay over-zero action control circuit in an implementation method；
Fig. 3 is the waveform diagram of the voltage Uac in circuit shown in Fig. 2；
Fig. 4 is the waveform diagram of the voltage U1 in circuit shown in Fig. 2；
Fig. 5 is the waveform diagram of the voltage Ugs, voltage Ur and voltage Ua in circuit shown in Fig. 2.
Specific embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.Elaborate many details in order to abundant in the following description
Understand the utility model.But the utility model can be implemented with being much different from other manner described here, this area
Technical staff can do similar improvement in the case of without prejudice to the utility model intension, therefore the utility model does not receive following public affairs
The limitation of the specific embodiment opened.
Fig. 1 is referred to, is the schematic block diagram of AC relay over-zero action control circuit in an implementation method, example
Such as, a kind of AC relay over-zero action control circuit includes processor 110, relay drive circuit 120 and signal isolation
Circuit 130.For example, processor 110 is single-chip microcomputer.
Processor 110 is connected with relay drive circuit 120 and signal isolation circuit 130 respectively, relay driving electricity
Road 120 is connected with signal isolation circuit 130.Relay drive circuit 120 is used for relay and drives the actuating of relay, that is, drive
Move the switch closure of the relay or disconnect.
Signal isolation circuit 130 is used to be converted into the alternating current of relay shutdown moment the electric signal of isolation, and by electricity
Signal transmission is to processor 110.That is, signal isolation circuit is that the alternating current of relay shutdown moment is converted into isolation
Electric signal, electric signal is supplied to processor of single chip computer.
Processor 110 is used for by the magnet exciting coil of the control relay of relay drive circuit 120, detection signal isolation electricity
The electric signal of the transmission of road 130, calculates and preserves the action delay time of relay.That is, processor of single chip computer be for
The magnet exciting coil of control relay, the electric signal that detection signal isolation circuit is provided preserves the action delay time of relay.
Because single-chip microcomputer cannot directly drive relay, therefore relay drive circuit is needed to go to drive the excitation wire of relay
Circle.In this way, whole process forms closed loop, it is possible to realize being checked in electrical environment is exchanged the action delay time of relay.
Above-mentioned AC relay over-zero action controls circuit, realizes the action that relay is checked in electrical environment is exchanged
Delay time, such that it is able to control relay in exchange zero point conducting, without can just extend relay from antisurge relay high
Device service life, realizes high precision, and small volume, low cost the characteristics of reliable and stable, solves On-line Product test and at any time school
The problem of positive actuating of relay delay time.
Fig. 2 is referred to, it is the circuit diagram of AC relay over-zero action control circuit in an implementation method, knot
Fig. 1 and Fig. 2 is closed, for example, relay drive circuit 120 includes on-off circuit 121 and one-way conduction circuit 122, on-off circuit 121
Input be connected with the delays time to control end Relay of processor MCU, the output end of on-off circuit 121 is used to connect relay
The first input end of magnet exciting coil.
In the present embodiment, relay includes magnet exciting coil SW1A and switch SW1B.For example, on-off circuit 121 is by time delay
After the control signal that control end Relay is transmitted, magnet exciting coil SW1A is controlled according to the control signal.For example, the control signal is
During the actuating signal of closure switch SW1B, the control magnet exciting coil SW1A actions of on-off circuit 121 produce magnetic field so that switch SW1B
Closure.
The input of one-way conduction circuit 122 is connected with the output end of on-off circuit 121, one-way conduction circuit 122 it is defeated
Go out the second input that end is additionally operable to the magnet exciting coil of connection relay.So by the one-way conduction of one-way conduction circuit 122
Characteristic, reverse electricity of the magnet exciting coil SW1A of relay during driving switch SW1B starts to stopping can be absorbed
Pressure, improves circuit stability.
Further, on-off circuit 121 includes transistor Q1, and one-way conduction circuit 122 includes diode D6；Transistor Q1
Base stage be connected with the delays time to control end of processor MCU, grounded emitter.The anode of diode D6 and the colelctor electrode of transistor Q1
Connection, negative electrode connection power input VCC.Power input VCC is used to power on-off circuit 121 and relay.
In the present embodiment, the colelctor electrode of transistor Q1 is additionally operable to the first input end of the magnet exciting coil SW1A for connecting relay
The anode of a1, diode D6 is additionally operable to the second input a2 of the magnet exciting coil SW1A for connecting relay.That is, relay
The first input end a1 of magnet exciting coil SW1A be connected with the negative electrode of diode D6, the second of the magnet exciting coil SW1A of relay is defeated
Enter to hold a2 to be connected with the anode of diode D6.The effect of diode D6 is that the magnet exciting coil SW1A for absorbing relay is driven into stopping
Backward voltage, so, to absorb the magnet exciting coil SW1A of relay during driving switch SW1B starts to stopping
Backward voltage, improves circuit stability.
Further, on-off circuit 121 also includes resistance R27 and resistance R28, and the base stage of transistor Q1 passes through resistance R28
It is grounded and is connected with the delays time to control end of processor MCU by resistance R27.So by the current limliting point of resistance R27 and resistance R28
Pressure is acted on, and can further improve the stability of circuit.
Referring to Fig. 3, for example, signal isolation circuit 130 includes rectification circuit 131, constant-current circuit 132 and light thermocouple
Close circuit 133.Rectification circuit 131 is used for the AC rectification that will be input into direct current.Constant-current circuit 132 is used to pass through light
The electric current stabilization of electric coupling circuit 133.Photoelectric coupling circuit 133 is used for the magnet exciting coil to processor MCU output relays
The actuating signal of SW1A.
First power input of rectification circuit 131 is used to be input into live wire by the output end of the magnet exciting coil of relay
End connection, the second source input of rectification circuit 131 is used to connect zero line input.In the present embodiment, rectification circuit 131
First power input is the first power input AC1 of rectifier bridge BD2, and the second source input of rectification circuit 131 is whole
The second source input AC2 of stream bridge BD2.
The input of constant-current circuit 132 is connected with the output end of rectification circuit 131, the output end and light of constant-current circuit 132
The input connection of electric coupling circuit 133；The output end of photoelectric coupling circuit 133 is connected with the motion end of processor MCU.
Further, rectification circuit 131 includes rectifier bridge BD2, and constant-current circuit 132 includes voltage-stabiliser tube ZD1 and metal-oxide-semiconductor Q3,
Photoelectric coupling circuit 133 includes that photoelectrical coupler OP1, the first power input AC1 of rectifier bridge BD2 are used for by relay
The output end (i.e. driving switch SW1B) of magnet exciting coil SW1A is connected with live wire input L.Metal-oxide-semiconductor Q3 is preferably N-channel effect
Ying Guan.
The second source input AC2 of rectifier bridge BD2 is used to connect zero line input N；The first voltage of rectifier bridge BD2 is defeated
Go out end to be connected with the anode of photoelectrical coupler OP1；The second voltage output end of rectifier bridge BD2 respectively with the anode of voltage-stabiliser tube ZD1
And the source electrode connection of metal-oxide-semiconductor Q3.
The grid of metal-oxide-semiconductor Q3 is connected with the negative electrode of voltage-stabiliser tube ZD1, the drain electrode of metal-oxide-semiconductor Q3 and the negative electrode of photoelectrical coupler OP1
Connection；The colelctor electrode of photoelectrical coupler OP1 is connected with the motion end of processor MCU, the grounded emitter of photoelectrical coupler OP1.
Further, constant-current circuit 132 also includes resistance R19, resistance R20, resistance R22, resistance R24, voltage-stabiliser tube ZD1's
Negative electrode is connected by resistance R20, resistance R19 with the anode of photoelectrical coupler OP1, also, the negative electrode of voltage-stabiliser tube ZD1 also passes through electricity
Resistance R22 is connected with the anode of voltage-stabiliser tube ZD1；The source that the second voltage output end of rectifier bridge BD2 passes through resistance R24 and metal-oxide-semiconductor Q3
Pole connects.That is, the composition constant current such as resistance R19, resistance R20, resistance R22, resistance R24, voltage-stabiliser tube ZD1, metal-oxide-semiconductor Q3
Source so that the diode current flowed through in photoelectrical coupler OP1 is constant.
Further, photoelectric coupling circuit 133 also includes resistance R25；The colelctor electrode of photoelectrical coupler OP1 passes through resistance
R25 connection power inputs VCC.So by resistance R25 partial pressures, the effect of current limliting, the stability of circuit can be improved.
Further, rectification circuit 131 also includes fuse F2, and the first power input AC1 of rectifier bridge BD2 is by protecting
Dangerous silk F2 is connected with the output end of the magnet exciting coil of relay.So, under the overcurrent protection of fuse F2, in input rectifying electricity
The connection of rectification circuit 131 and outside is cut off when the electric current on road 131 is excessive, so that effectively protection circuit, improves the safety of circuit
Property.
With reference to Fig. 2, Fig. 3, Fig. 4 and Fig. 5, the circuit control flow to AC relay over-zero action control circuit is made
Illustrate, wherein, Fig. 3 is the waveform diagram of the voltage Uac in circuit shown in Fig. 2, and Fig. 4 is the voltage U1 in circuit shown in Fig. 2
Waveform diagram, Fig. 5 be circuit shown in Fig. 2 in voltage Ugs, voltage Ur and voltage Ua waveform diagram.
The circuit control flow is specially：
First, the delays time to control end Relay pin of processor of single chip computer MCU provide high level voltage Ur, while internal clocking
Device starts timing.The high level of voltage Ur causes that transistor Q1 is turned on so that the magnet exciting coil of relay is energized.
Then, because the switch of relay was needed after certain mechanical delay, can just close completely.The live wire of civil power is defeated
Enter between end and zero line input to have voltage Uac, voltage Uac to be passed through signal isolation circuit, voltage Uac is passed through signal isolation electricity
, to AC signal U1, AC signal U1 is by being rectified into " steamed bun ripple " direct current signal after fuse F2, rectifier bridge BD2 for rood
U2。
Finally, as the voltage Ugs of the magnitude of voltage more than metal-oxide-semiconductor Q3 of direct current signal U2, photoelectrical coupler is driven by constant-current source,
Processor of single chip computer MCU can just receive the trailing edge signal of Action, and now MCU timers stop, and MCU reads timer
Data are the action delay time Ta of relay.
Need explanation：Because Ugs voltages (about 2V) be far smaller than less than civil power Uac crest voltages (120V~240V's
1.414 times), so Dead Time Td causes the time error to be：Ugd/Uac, about 0.5%-1%.Can be with engineer applied
Ignore and do not remember.
The utility model has the advantage of, the action delay time that relay is checked in electrical environment is exchanged is realized,
Such that it is able to control relay in exchange zero point conducting, the longevity is used without can just extend relay from antisurge relay high
Life, realizes high precision, and small volume, low cost the characteristics of reliable and stable, solves On-line Product test and at any time correcting relay
The problem of action delay time.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses several embodiments of the present utility model, and its description is more specific and detailed,
But therefore can not be interpreted as the limitation to utility model patent scope.It should be pointed out that for the common skill of this area
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
Protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of AC relay over-zero action control circuit, it is characterised in that including processor, relay drive circuit and
Signal isolation circuit；
The processor is connected with the relay drive circuit and the signal isolation circuit respectively, the relay driving
Circuit is connected with the signal isolation circuit,
The signal isolation circuit is used to be converted into the alternating current of relay shutdown moment the electric signal of isolation, and by electric signal
Transmit to the processor；
The processor is used to, by the magnet exciting coil of the relay drive circuit control relay, detect the signal isolation
The electric signal of circuit transmission, calculates and preserves the action delay time of relay.
2. AC relay over-zero action according to claim 1 controls circuit, it is characterised in that the relay driving
Circuit includes on-off circuit and one-way conduction circuit, and the input of the on-off circuit connects with the delays time to control end of the processor
Connect, the output end of the on-off circuit is used for the first input end of the magnet exciting coil for connecting the relay,
The input of the one-way conduction circuit is connected with the output end of the on-off circuit, the output of the one-way conduction circuit
End is additionally operable to the second input of the magnet exciting coil for connecting the relay.
3. AC relay over-zero action according to claim 2 controls circuit, it is characterised in that the on-off circuit bag
Transistor Q1 is included, the one-way conduction circuit includes diode D6；
The base stage of transistor Q1 is connected with the delays time to control end of the processor, grounded emitter；
The anode of diode D6 is connected with the colelctor electrode of transistor Q1, negative electrode connection power input VCC；
The colelctor electrode of transistor Q1 is additionally operable to the first input end of the magnet exciting coil for connecting the relay, the anode of diode D6
It is additionally operable to connect the second input of the magnet exciting coil of the relay.
4. AC relay over-zero action according to claim 3 controls circuit, it is characterised in that the on-off circuit is also
Including resistance R27 and resistance R28, the base stage of transistor Q1 is grounded and by resistance R27 and the processor by resistance R28
Delays time to control end connects.
5. AC relay over-zero action according to claim 1 controls circuit, it is characterised in that the signal isolation electricity
Road includes rectification circuit, constant-current circuit and photoelectric coupling circuit,
First power input of the rectification circuit is used for defeated with live wire by the output end of the magnet exciting coil of the relay
Enter end connection, the second source input of the rectification circuit is used to connect zero line input；
The input of the constant-current circuit is connected with the output end of the rectification circuit, the output end of the constant-current circuit with it is described
The input connection of photoelectric coupling circuit；
The output end of the photoelectric coupling circuit is connected with the motion end of the processor.
6. AC relay over-zero action according to claim 5 controls circuit, it is characterised in that the rectification circuit bag
Rectifier bridge BD2 is included, the constant-current circuit includes voltage-stabiliser tube ZD1 and metal-oxide-semiconductor Q3, and the photoelectric coupling circuit includes photoelectrical coupler
OP1,
The first power input AC1 of rectifier bridge BD2 is used for defeated with live wire by the output end of the magnet exciting coil of the relay
Enter and hold L to connect,
The second source input AC2 of rectifier bridge BD2 is used to connect zero line input N；
The first voltage output end of rectifier bridge BD2 is connected with the anode of photoelectrical coupler OP1；
The second voltage output end of rectifier bridge BD2 is connected with the anode of voltage-stabiliser tube ZD1 and the source electrode of metal-oxide-semiconductor Q3 respectively；
The grid of metal-oxide-semiconductor Q3 is connected with the negative electrode of voltage-stabiliser tube ZD1, and the drain electrode of metal-oxide-semiconductor Q3 connects with the negative electrode of photoelectrical coupler OP1
Connect；
The colelctor electrode of photoelectrical coupler OP1 is connected with the motion end of the processor, the grounded emitter of photoelectrical coupler OP1.
7. AC relay over-zero action according to claim 6 controls circuit, it is characterised in that the constant-current circuit is also
Including resistance R19, resistance R20, resistance R22, resistance R24；
The negative electrode of voltage-stabiliser tube ZD1 is connected by resistance R20, resistance R19 with the anode of photoelectrical coupler OP1, also, voltage-stabiliser tube
The negative electrode of ZD1 is also connected by resistance R22 with the anode of voltage-stabiliser tube ZD1；
The second voltage output end of rectifier bridge BD2 is connected by resistance R24 with the source electrode of metal-oxide-semiconductor Q3.
8. AC relay over-zero action according to claim 6 controls circuit, it is characterised in that the photoelectric coupling electricity
Road also includes resistance R25；
The colelctor electrode of photoelectrical coupler OP1 connects power input VCC by resistance R25.
9. AC relay over-zero action according to claim 6 controls circuit, it is characterised in that the rectification circuit is also
Including fuse F2, the first power input AC1 of rectifier bridge BD2 passes through fuse F2 and the magnet exciting coil of the relay
Output end is connected.
10. the AC relay over-zero action according to any one of claim 1 to 9 controls circuit, it is characterised in that described
Processor is single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416196.3U CN206312827U (en) | 2016-12-22 | 2016-12-22 | AC relay over-zero action controls circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621416196.3U CN206312827U (en) | 2016-12-22 | 2016-12-22 | AC relay over-zero action controls circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312827U true CN206312827U (en) | 2017-07-07 |
Family
ID=59245621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621416196.3U Withdrawn - After Issue CN206312827U (en) | 2016-12-22 | 2016-12-22 | AC relay over-zero action controls circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206312827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653483A (en) * | 2016-12-22 | 2017-05-10 | 惠州Tcl照明电器有限公司 | Alternating current relay zero-cross motion control circuit |
-
2016
- 2016-12-22 CN CN201621416196.3U patent/CN206312827U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106653483A (en) * | 2016-12-22 | 2017-05-10 | 惠州Tcl照明电器有限公司 | Alternating current relay zero-cross motion control circuit |
| CN106653483B (en) * | 2016-12-22 | 2020-07-10 | Tcl华瑞照明科技（惠州）有限公司 | Zero-crossing action control circuit of alternating-current relay |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181212 Address after: 516000 No. 72 Huifeng 4th Road, Zhongkai High-tech Zone, Huizhou City, Guangdong Province (Factory Building) Co-patentee after: Huarui photoelectric (Huizhou) Co. Ltd. Patentee after: TCL Huarui Lighting Technology (Huizhou) Co., Ltd. Address before: 516006 No. 26, No. 3 Zhongkai Avenue, Huizhou City, Guangdong Province Patentee before: Huizhou TCL Lighting Appliance Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170707 Effective date of abandoning: 20200710 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170707 Effective date of abandoning: 20200710 |