CN106980039A - Zero crossing detection device and synchro switch - Google Patents
Zero crossing detection device and synchro switch Download PDFInfo
- Publication number
- CN106980039A CN106980039A CN201710028718.5A CN201710028718A CN106980039A CN 106980039 A CN106980039 A CN 106980039A CN 201710028718 A CN201710028718 A CN 201710028718A CN 106980039 A CN106980039 A CN 106980039A
- Authority
- CN
- China
- Prior art keywords
- transistor
- switch
- photoelectrical coupler
- control unit
- semiconductor switch
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/175—Indicating the instants of passage of current or voltage through a given value, e.g. passage through zero
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
- H03K17/615—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors in a Darlington configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/78—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
- H03K17/79—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled controlling bipolar semiconductor switches with more than two PN-junctions, or more than three electrodes, or more than one electrode connected to the same conductivity region
Abstract
Zero crossing detection device and synchro switch of the present invention belong to electricity field, particularly a kind of zero crossing detection device being suitably applied in contactor, relay and other mechanical switch as zero passage detection, and a kind of synchro switch without current sensor；Including semiconductor switch, the first current limiting element, the first photoelectrical coupler, a rectifying device, an electric capacity, the control end of semiconductor switch is connected by the first current limiting element with the signal source of required detection, working power is charged by rectifying device for electric capacity, electric capacity passes through the control end of the first photoelectrical coupler, semiconductor switch formation discharge loop, first photoelectrical coupler output detection signal, the present invention has the advantages that circuit is simple, accuracy of detection is high, cost performance is high.
Description
Technical field
Zero crossing detection device and synchro switch of the present invention belong to electricity field, particularly one kind be suitably applied contactor,
The zero crossing detection device of zero passage detection, and a kind of synchronization without current sensor are used as in relay and other mechanical switch
Switch.
Background technology
At present in electric control system, photoelectrical coupler series connection one current-limiting resistance composition zero passage detection dress is widely used
Put, because photoelectrical coupler driving current is big, driving current discreteness is big, there is that current-limiting resistance energy consumption is big and detection zero passage blind area
Big shortcoming（In 220V AC systems, generally more than more than ten volts）, be not suitable in synchro switch for mechanical switch
The detection of disconnection.
The content of the invention
There is provided it is an object of the invention to the weak point for existing zero crossing detection device a kind of operating power consumption it is low, into
This low, accuracy of detection is high, and the zero crossing detection device that can be used in synchro switch, and one kind without current sensor, into
This low, synchro switch that switching precision is high.
The purpose of the present invention is realized by the following technical programs to reach：
A kind of zero crossing detection device, including semiconductor switch, the first current limiting element, the first photoelectrical coupler, a rectifying device,
One electric capacity, the control end of semiconductor switch is connected by the first current limiting element with the signal source of required detection, and working power passes through
Rectifying device is electric capacity charging, and electric capacity passes through the control end of the first photoelectrical coupler, semiconductor switch formation discharge loop, first
Photoelectrical coupler output detection signal.
A kind of zero crossing detection device, semiconductor switch is turned on when detecting signal source voltage more than zero.
A kind of zero crossing detection device, semiconductor switch includes a transistor, or Darlington transistor, or a Darlington circuit, or
Transistor driving transistor circuit.
A kind of zero crossing detection device, working power is provided by transformer output winding.
A kind of zero crossing detection device, is half-wave detection circuit.
A kind of zero crossing detection device, including the second current limiting element, a voltage-stabilizing device, the second current limiting element and rectifying device string
Connection, voltage-stabilizing device is in parallel with electric capacity, or voltage-stabilizing device is in parallel with electric capacity by rectifying device.
A kind of zero crossing detection device, working power is provided by the neutral conductor or relative to another phase line of signal source.
A kind of synchro switch, it includes described zero crossing detection device, in addition to control unit, mechanical switch, and control is single
Member is connected with mechanical switch, and the control end of semiconductor switch is connected by the first current limiting element with mechanical switch, the first photoelectricity coupling
Clutch output signal is transferred to control unit.
A kind of synchro switch, the signal that control unit is exported according to the first photoelectrical coupler, adjustment control machinery switch is closed
Conjunction or the time parameter of disjunction.
A kind of synchro switch, connection one is used for the second photoelectrical coupler for controlling discharge loop, the second photoelectrical coupler
Control end is connected with control unit.
A kind of synchro switch, in the course of work of closure, control unit provides the second photoelectrical coupler control signal, control
Mechanical switch processed is closed after discharge loop conducting.
A kind of synchro switch, in addition to a unidirectional thyristor, unidirectional thyristor are in parallel with mechanical switch, semiconductor switch
Control end connected by the anode of the first current limiting element and unidirectional thyristor, and electric capacity passes through semiconductor switch, unidirectional thyristor
The negative electrode formation driving circuit of trigger electrode, unidirectional thyristor, semiconductor switch is used for the ON time for detecting unidirectional thyristor, control
Unit processed adjusts the time parameter that control machinery is switched according to the ON time of unidirectional thyristor.
A kind of synchro switch, connection one is used for the second photoelectrical coupler for controlling discharge loop, the second photoelectrical coupler
Control end is connected with control unit.
A kind of synchro switch, in the course of work of closure, control unit first provides the second photoelectrical coupler control signal,
Control machinery switch is closed after unidirectional thyristor passing zero trigger in a quarter cycle.
A kind of synchro switch, in the course of work of disjunction, control unit control machinery is switched off, and meets unidirectional brilliant
Brake tube ON time is less than half of cycle.
A kind of synchro switch, semiconductor switch includes the first transistor, second transistor, diode, and the first transistor is
PNP transistor, second transistor are NPN transistor, and the base stage of second transistor passes through the first current limiting element and unidirectional crystalline substance
The negative electrode of the anode connection of brake tube, the emitter stage of second transistor and unidirectional thyristor is connected, the colelctor electrode of second transistor with
The base stage connection of the first transistor, the emitter stage of the first transistor, the colelctor electrode of the first transistor are connected in discharge loop, and two
The emitter stage of pole pipe and second transistor, the base stage reverse parallel connection of second transistor.
Zero crossing detection device of the present invention has the advantages that circuit is simple, accuracy of detection is high, cost is low.
Have using the synchro switch of the present invention of zero crossing detection device of the present invention without current sensor, switching be accurate, property
Valency is than high advantage.
Brief description of the drawings
The circuit theory diagrams of embodiment one of Fig. 1 zero crossing detection devices of the present invention and synchro switch.
The Darlington circuit schematic diagram of embodiment one of Fig. 2 zero crossing detection devices of the present invention and synchro switch.
The circuit theory diagrams of embodiment two of Fig. 3 zero crossing detection devices of the present invention and synchro switch.
The embodiment three-circuit schematic diagram of Fig. 4 zero crossing detection devices of the present invention and synchro switch.
The semiconductor switch circuit schematic diagram of embodiment three of Fig. 5 zero crossing detection devices of the present invention and synchro switch.
Embodiment
The embodiment one of zero crossing detection device and synchro switch of the present invention, as shown in Figure 1：
A kind of zero crossing detection device, its be half-wave detect circuit, it include semiconductor switch Q1, the first photoelectrical coupler OPT1,
First current limiting element R1（Resistance）, rectifying device D1（Diode）, electric capacity C1, semiconductor switch Q1（Transistor）Control end
One current limiting element R1 and the signal source of required detection（The K1 two ends of mechanical switch）Connection, working power（Working power is by transformation
Device output winding is provided）Charged by rectifying device D1 for electric capacity C1, the control that electric capacity C1 passes through the first photoelectrical coupler OPT1
End, semiconductor switch Q1 formation discharge loops, the first photoelectrical coupler OPT1 output detection signals, are connected on electric capacity C1 and discharge back
The 3rd resistor R3 on road is used for current limliting, selects as needed.
Semiconductor switch Q1：For convenience of understanding, Fig. 1 is transistor a Q1, the 4th resistance R4, diode Z3 and transistor Q1
Base stage, emitter stage it is in parallel, when transistor Q1 is built-in with associated components, can omit, be the first current limliting of reduction during practical application
Element R1 power consumption, or Darlington transistor, or a Darlington circuit, or transistor driving transistor circuit, interlock circuit
As shown in Fig. 2 semiconductor switch Q1 detect mechanical switch K1 both end voltages more than zero and meet semiconductor switch Q1 driving
Turned on during voltage.
A kind of synchro switch includes above-described zero crossing detection device, in addition to control unit（A）, mechanical switch K1,
Control unit（A）It is connected with mechanical switch K1, semiconductor switch Q1 control end passes through the first current limiting element R1 and mechanical switch
K1 connections, the first photoelectrical coupler OPT1 output signals are transferred to control unit（A）.
Operation principle：In the synchro switch disjunction course of work, control unit（A）Control machinery switch K1 both end voltages exist
Driving semiconductor switch Q1 conducting voltages direction is met, and ON time is less than a quarter cycle disjunction, control unit（A）Can
With the signal exported according to the first photoelectrical coupler OPT1, adjustment control machinery switchs the time parameter of K1 disjunctions；Such as need zero passage
Connect, during synchro switch Operating In Persistent Current Mode, control unit（A）Control machinery switchs K1 and partly led in both end voltage satisfaction driving
Body is closed when switching Q1 conducting voltage directions, control unit（A）The signal that can be exported according to the first photoelectrical coupler OPT1, is adjusted
The time parameter of whole control machinery switch K1 closures.
The embodiment two of zero crossing detection device and synchro switch of the present invention, as shown in Figure 3：
A kind of zero crossing detection device, it is that half-wave detects circuit, including semiconductor switch Q1, the first current limiting element R1（Resistance）、
Rectifying device D1（Diode）, electric capacity C1, the second current limiting element R2（Resistance）, voltage-stabilizing device Z1, the first photoelectrical coupler OPT1,
Second photoelectrical coupler OPT2, semiconductor switch Q1（Transistor）Control end pass through the first current limiting element R1 and required detection
Signal source（The K1 two ends of mechanical switch）Connection, working power（Working power is provided by the neutral conductor in figure, can also by relative to
Another phase line of signal source is provided）Charged by the second current limiting element R2, rectifying device D1 for electric capacity C1, electric capacity C1 passes through first
Photoelectrical coupler OPT1 control end, the second photoelectrical coupler OPT2, semiconductor switch Q1 formation discharge loops, the first photoelectricity coupling
Clutch OPT1 output detection signals, voltage-stabilizing device Z1 is in parallel with electric capacity C1（Can also voltage-stabilizing device Z1 by rectifying device D1 with
Electric capacity C1 is in parallel）, the second photoelectrical coupler OPT2 is for controlling discharge loop, and it is not limited to connect with discharge loop, can also
It is connected with semiconductor switch Q1 control ends, when used in synchro switch, and when not needing zero passage input, the second photoelectrical coupler
OPT2 can be omitted, and being connected on the 3rd resistor R3 of electric capacity C1 discharge loops is used for current limliting, selects as needed.
Semiconductor switch Q1：For convenience of understanding, Fig. 3 is transistor a Q1, the 4th resistance R4, diode Z3 and transistor Q1
Base stage, emitter stage it is in parallel, when transistor Q1 is built-in with associated components, can omit, be the first current limliting of reduction during practical application
Element R1 power consumptions, or Darlington transistor, or a Darlington circuit, or transistor driving transistor circuit, interlock circuit is such as
Shown in Fig. 2, semiconductor switch Q1 detect mechanical switch K1 both end voltages more than zero and meet semiconductor switch Q1 driving electricity
Turned on during pressure.
A kind of synchro switch includes above-described zero crossing detection device, in addition to control unit（A）, mechanical switch K1,
Control unit（A）It is connected with mechanical switch K1, semiconductor switch Q1 control end passes through the first current limiting element R1 and mechanical switch
K1 connections, the first photoelectrical coupler OPT1 output signals are transferred to control unit（A）, the second photoelectrical coupler OPT2 control end
With control unit（A）Connection.
Operation principle：Such as zero passage is needed to connect, in the course of work of closure, control unit（A）Second photoelectric coupling is provided
Device OPT2 control signals, control machinery switchs K1 and closed after electric capacity C1 discharge loop conducting, control unit（A）Control machinery
Switch K1 is closed when both end voltage meets driving semiconductor switch Q1 conducting voltage directions, control unit（A）According to the first light
The signal of electric coupler OPT1 outputs, the time parameter of adjustment control machinery switch K1 closures.It is worked in synchro switch disjunction
Cheng Zhong, control unit（A）Control machinery switchs K1 and meets driving semiconductor switch Q1 conducting voltages direction in both end voltage, and drives
The dynamic time is less than a quarter cycle disjunction, is then shut off the second photoelectrical coupler OPT2 conductivity control signals, control unit（A）
The signal exported according to the first photoelectrical coupler OPT1, adjustment control machinery switchs the time parameter of K1 disjunctions.
The present embodiment, provides zero crossing detection device working power without transformer, directly there is the friendship where mechanical switch K1
Stream power network non-isolated is powered, and it uses capacitance energy storage to drive the first photoelectrical coupler OPT1 drive form, passes through the second current limliting
Element R2 electric currents can be set as 0.1 milliampere or so, be set to 0.1 milliampere, and when operating voltage is 220V, energy consumption is only
0.022W, when mechanical switch K1 is closed, semiconductor switch Q1 cut-offs, electric capacity C1 is in charged state, when needing synchro switch
When zero passage connects control, it is only necessary to increase the second photoelectrical coupler OPT2 for controlling electric capacity C1 to discharge, the present embodiment
Have the advantages that circuit is simple, energy consumption is small, cost is low.
The embodiment three of zero crossing detection device and synchro switch of the present invention, as shown in Figure 4：
A kind of zero crossing detection device, it is that half-wave detects circuit, and it includes semiconductor switch（B）, the first current limiting element R1, rectification
Device D1（Diode）, electric capacity C1, the second current limiting element R2, voltage-stabilizing device Z1, the first photoelectrical coupler OPT1, the second photoelectricity coupling
Clutch OPT2, semiconductor switch（B）（Transistor）Control end pass through the signal source of the first current limiting element R1 and required detection（Machine
The K1 two ends of tool switch）Connection, working power（Working power is provided by the neutral conductor in figure, can also be by relative to signal source
Another phase line is provided）Charged by the second current limiting element R2, rectifying device D1 for electric capacity C1, electric capacity C1 passes through the first photoelectric coupling
Device OPT1 control end, the second photoelectrical coupler OPT2, semiconductor switch（B）, unidirectional thyristor SCR1 trigger electrode, unidirectional brilliant
Brake tube SCR1 negative electrode formation discharge loop, the first photoelectrical coupler OPT1 output detection signals, voltage-stabilizing device Z1 passes through rectification
Device D1 is in parallel with electric capacity C1（Can also voltage-stabilizing device Z1 it is directly in parallel with electric capacity C1）, the second photoelectrical coupler OPT2 is for controlling
Discharge loop processed, it is not limited to connect with discharge loop, can also be with semiconductor switch（B）Control end is connected, when used in synchronization
Switch, and when not needing zero passage input, the second photoelectrical coupler OPT2 can be omitted, and be connected on the 3rd of electric capacity C1 discharge loops
Resistance R3 is used for current limliting, selects as needed.
Semiconductor switch（B）：As shown in figure 5, semiconductor switch（B）Mechanical switch K1 both end voltages are being detected more than zero
And meet semiconductor switch（B）Turned on during driving voltage；Semiconductor switch（B）Including the first transistor Q1, second transistor Q2,
Diode D2, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the first transistor Q1 are PNP transistor, the second crystal
Pipe Q2 is NPN transistor, and second transistor Q2 base stage passes through the first current limiting element R1 and unidirectional thyristor SCR1 anode
Connection, second transistor Q2 emitter stage is connected with unidirectional thyristor SCR1 negative electrode, second transistor Q2 colelctor electrode and the
One transistor Q1 base stage connection, the first transistor Q1 emitter stage, the first transistor Q1 colelctor electrode are connected on electric capacity C1's
In discharge loop, diode D2 and second transistor Q2 emitter stage, second transistor Q2 base stage reverse parallel connection, the 5th resistance
R5 is in parallel with diode D1, the 6th resistance R6 two ends base stage respectively with the first transistor Q1, the first transistor Q1 emitter stage
Connection, the base stage that the 7th resistance R7 is connected on the first transistor Q1 is used for current limliting, the 5th resistance R5, the 6th resistance R6, the 7th electricity
Resistance R7 is selected as needed.
A kind of synchro switch, including above-described zero crossing detection device, in addition to control unit（A）, mechanical switch K1,
Unidirectional thyristor SCR1（Half control type device）, control unit（A）It is connected with mechanical switch K1, semiconductor switch（B）Control end
It is connected by the first current limiting element R1 with mechanical switch K1, the first photoelectrical coupler OPT1 output signals are transferred to control unit
（A）, the second photoelectrical coupler OPT2 control end and control unit（A）Connection, unidirectional thyristor SCR1 and mechanical switch K1 is simultaneously
Connection, semiconductor switch（B）Control end be connected by the first current limiting element R1 with unidirectional thyristor SCR1 anode, electric capacity C1 lead to
Cross the first photoelectrical coupler OPT1 control end, the second photoelectrical coupler OPT2, semiconductor switch（B）, unidirectional thyristor SCR1
Trigger electrode, unidirectional thyristor SCR1 negative electrode formation driving circuit, semiconductor switch（B）For detecting unidirectional thyristor SCR1
ON time, control unit（A）Control machinery switch K1 time ginseng is adjusted according to unidirectional thyristor SCR1 ON time
Number.Note：First photoelectrical coupler OPT1 control end, the second photoelectrical coupler OPT2 are not limited to the drive with unidirectional thyristor SCR1
Dynamic circuit in series, can also be connected on semiconductor switch（B）Internal circuit in, such as and semiconductor switch（B）2 pin, 4 pin return
Connect on road.
Operation principle：Such as zero passage is needed to connect, in the course of work of closure, control unit（A）Second photoelectric coupling is provided
Device OPT2 control signals, control machinery switchs K1 and closed after unidirectional thyristor SCR1 passing zero triggers in a quarter cycle, control
Unit processed（A）The signal exported according to the first photoelectrical coupler OPT1, the time parameter of adjustment control machinery switch closure, is dividing
In the disconnected course of work, control unit（A）Control machinery switch K1 met unidirectional thyristor SCR1 ON times less than half week
Ripple disconnects, control unit（A）The signal exported according to the first photoelectrical coupler OPT1, adjustment control machinery switchs the time of disjunction
Parameter.
The present embodiment, zero crossing detection device working power and unidirectional thyristor SCR1 driving energy are provided without transformer
Amount, is directly powered as the AC network non-isolated where mechanical switch K1, and it uses capacitance energy storage to drive the first photoelectrical coupler
OPT1 and unidirectional thyristor SCR1 form, can be set as 0.1 milliampere or so by the second current limiting element R2 electric current, such as set
For 0.1 milliampere, when operating voltage is 220V, energy consumption is only 0.022W, when mechanical switch K1 is closed, and semiconductor switch Q1 is cut
Only, electric capacity C1 is in charged state, when needing synchro switch zero passage to connect control, it is only necessary to increase for controlling electric capacity C1 to put
Second photoelectrical coupler OPT2 of electricity, unidirectional thyristor SCR1 driving do not need high-pressure electronic switch（Such as 3083 optocouplers
Driving）And triggering transformer, the present embodiment has that unidirectional thyristor SCR1 ON times are short, overload capacity is strong, circuit is simple, property
Valency is than high, reliability advantage；
When providing the working power of unidirectional thyristor SCR1 driving energies and zero crossing detection device by the winding of a transformer one, this reality
Applying the second current limiting element R2, voltage-stabilizing device Z1, the second photoelectrical coupler OPT2 of example can omit.
In summary：It is excellent that zero crossing detection device of the present invention has that circuit is simple, small power consumption, accuracy of detection are high, cost is low
Point.
Being had using the synchro switch of the present invention of zero crossing detection device of the present invention needs current sensor, will not be because of load current
Size influence precision, have the advantages that switching is accurate, cost performance is high.
Claims (16)
1. a kind of zero crossing detection device, it is characterized in that：It includes semiconductor switch, the first current limiting element, the first photoelectric coupling
Device, a rectifying device, an electric capacity, the control end of the semiconductor switch pass through first current limiting element and the letter of required detection
Number source connection, working power is electric capacity charging by the rectifying device, and the electric capacity passes through first photoelectric coupling
The control end of device, semiconductor switch formation discharge loop, the first photoelectrical coupler output detection signal.
2. zero crossing detection device according to claim 1, it is characterized in that：The semiconductor switch is detecting the signal
Source voltage is turned on when being more than zero.
3. zero crossing detection device according to claim 1, it is characterized in that：The semiconductor switch includes a transistor, or
Darlington transistor, or a Darlington circuit, or transistor driving transistor circuit.
4. zero crossing detection device according to claim 1, it is characterized in that：The working power exports winding by a transformer
There is provided.
5. zero crossing detection device according to claim 1, it is characterized in that：It is that half-wave detects circuit.
6. zero crossing detection device according to claim 1, it is characterized in that：Including the second current limiting element, a voltage-stabilizing device, institute
State the second current limiting element to connect with the rectifying device, the voltage-stabilizing device is in parallel with the electric capacity, or the voltage-stabilizing device is logical
Cross the rectifying device in parallel with the electric capacity.
7. zero crossing detection device according to claim 6, it is characterized in that：The working power is by the neutral conductor or relative to institute
Another phase line for stating signal source is provided.
8. a kind of synchro switch, it is characterized in that：It includes the zero passage inspection according to any claim in claim 1 to 7
Device, in addition to control unit, mechanical switch are surveyed, described control unit is connected with the mechanical switch, the semiconductor switch
Control end be connected by first current limiting element with the mechanical switch, the first photoelectrical coupler output signal transmission
To described control unit.
9. synchro switch according to claim 8, it is characterized in that：Described control unit is according to first photoelectrical coupler
The time parameter of the signal of output, the adjustment control mechanical switch closure or disjunction.
10. synchro switch according to claim 9, it is characterized in that：Connection one is used to control the second of the discharge loop
Photoelectrical coupler, the control end of second photoelectrical coupler is connected with described control unit.
11. synchro switch according to claim 10, it is characterized in that：In the course of work of closure, described control unit
The second photoelectrical coupler control signal is provided, controls the mechanical switch to be closed after discharge loop conducting.
12. synchro switch according to claim 8, it is characterized in that：Also include a unidirectional thyristor, the unidirectional thyristor
In parallel with the mechanical switch, the control end of the semiconductor switch passes through first current limiting element and the unidirectional thyristor
Anode connection, the electric capacity passes through the semiconductor switch, the trigger electrode of the unidirectional thyristor, the unidirectional thyristor
Negative electrode formation driving circuit, the semiconductor switch is used for the ON time for detecting the unidirectional thyristor, described control unit
The time parameter for controlling the mechanical switch is adjusted according to the ON time of the unidirectional thyristor.
13. synchro switch according to claim 12, it is characterized in that：Connection one is used to control the second of the discharge loop
Photoelectrical coupler, the control end of second photoelectrical coupler is connected with described control unit.
14. synchro switch according to claim 13, it is characterized in that：In the course of work of closure, described control unit
The second photoelectrical coupler control signal is first provided, the mechanical switch is controlled four after the unidirectional thyristor passing zero trigger
Closed in/mono- cycle.
15. synchro switch according to claim 12, it is characterized in that：In the course of work of disjunction, described control unit
Control the mechanical switch to disconnect, and meet less than half cycle of the unidirectional thyristor ON time.
16. synchro switch according to claim 12, it is characterized in that：The semiconductor switch includes the first transistor, the
Two-transistor, diode, the first transistor are that PNP transistor, the second transistor are NPN transistor, described
The base stage of second transistor is connected by first current limiting element with the anode of the unidirectional thyristor, the hair of second transistor
Emitter-base bandgap grading is connected with the negative electrode of the unidirectional thyristor, and the base stage of the colelctor electrode of the second transistor and the first transistor connects
Connect, the emitter stage of the first transistor, the colelctor electrode of the first transistor are connected in the discharge loop, two pole
Emitter stage, the base stage reverse parallel connection of the second transistor of the anode of pipe and the second transistor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910693388.0A CN110286263A (en) | 2016-01-24 | 2017-01-16 | Zero crossing detection device and synchronous switch |
| PCT/CN2017/071793 WO2017125056A1 (en) | 2016-01-24 | 2017-01-20 | Zero-crossing detection apparatus and synchronous switch |
Applications Claiming Priority (14)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610070145 | 2016-01-24 | ||
| CN2016100701458 | 2016-01-24 | ||
| CN2016101168418 | 2016-02-26 | ||
| CN201610116841.8A CN105610301A (en) | 2015-02-27 | 2016-02-26 | Thyristor triggering apparatus |
| CN2016101330807 | 2016-03-02 | ||
| CN201610133080 | 2016-03-02 | ||
| CN201610316109 | 2016-05-06 | ||
| CN2016103161095 | 2016-05-06 | ||
| CN201610392525 | 2016-05-22 | ||
| CN2016103925253 | 2016-05-22 | ||
| CN2016104034190 | 2016-06-02 | ||
| CN201610403419 | 2016-06-02 | ||
| CN2016105837295 | 2016-07-13 | ||
| CN201610583729 | 2016-07-13 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693388.0A Division CN110286263A (en) | 2016-01-24 | 2017-01-16 | Zero crossing detection device and synchronous switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106980039A true CN106980039A (en) | 2017-07-25 |
Family
ID=59340921
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693388.0A Pending CN110286263A (en) | 2016-01-24 | 2017-01-16 | Zero crossing detection device and synchronous switch |
| CN201710028718.5A Pending CN106980039A (en) | 2016-01-24 | 2017-01-16 | Zero crossing detection device and synchro switch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910693388.0A Pending CN110286263A (en) | 2016-01-24 | 2017-01-16 | Zero crossing detection device and synchronous switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110286263A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113759A (en) * | 2021-12-22 | 2022-03-01 | 杭州联芯通半导体有限公司 | Zero-crossing detection circuit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215035A (en) * | 2011-05-12 | 2011-10-12 | 青岛鼎信通讯有限公司 | Alternating current mains supply isolation zero crossing checking circuit combined with low-voltage power line carrier wave communication signal coupling |
| CN202083738U (en) * | 2011-04-12 | 2011-12-21 | 海信科龙电器股份有限公司 | Zero crossing checking circuit |
| CN102323472A (en) * | 2011-09-08 | 2012-01-18 | 广州市金矢电子有限公司 | Voltage zero crossing detection device and zero crossing fling-cut switch |
| US20130334201A1 (en) * | 2012-06-19 | 2013-12-19 | Larry Nicholson | Portable Spa Monitoring And Control Circuitry |
| CN203899556U (en) * | 2014-06-23 | 2014-10-29 | 江苏良友农牧机械有限公司 | Air return device for double-shaft mixer |
-
2017
- 2017-01-16 CN CN201910693388.0A patent/CN110286263A/en active Pending
- 2017-01-16 CN CN201710028718.5A patent/CN106980039A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202083738U (en) * | 2011-04-12 | 2011-12-21 | 海信科龙电器股份有限公司 | Zero crossing checking circuit |
| CN102215035A (en) * | 2011-05-12 | 2011-10-12 | 青岛鼎信通讯有限公司 | Alternating current mains supply isolation zero crossing checking circuit combined with low-voltage power line carrier wave communication signal coupling |
| CN102323472A (en) * | 2011-09-08 | 2012-01-18 | 广州市金矢电子有限公司 | Voltage zero crossing detection device and zero crossing fling-cut switch |
| US20130334201A1 (en) * | 2012-06-19 | 2013-12-19 | Larry Nicholson | Portable Spa Monitoring And Control Circuitry |
| CN203899556U (en) * | 2014-06-23 | 2014-10-29 | 江苏良友农牧机械有限公司 | Air return device for double-shaft mixer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114113759A (en) * | 2021-12-22 | 2022-03-01 | 杭州联芯通半导体有限公司 | Zero-crossing detection circuit |
| US11835553B2 (en) | 2021-12-22 | 2023-12-05 | Hangzhou Lianxintong Semiconductor Co., Ltd. | Zero-crossing detection circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110286263A (en) | 2019-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106847582B (en) | Arc extinguishing power device driving device and arc-control device | |
| CN204189670U (en) | Current feedback electronic arc-suppressor | |
| CN206471248U (en) | Direct current arc extinguishing power device drive device and arc-control device | |
| CN205407772U (en) | Thyristor drive arrangement | |
| CN105428118B (en) | Arc-control device and Switch without electric arc | |
| WO2017125054A1 (en) | Arc-extinguishing power device driving apparatus and arc-extinguishing apparatus | |
| CN205407770U (en) | Bidirectional thyristor triggers throttling circuit and trigger circuit thereof | |
| CN101605412A (en) | The LED electrified light emitting circuit | |
| CN106024520A (en) | Electronic arc extinguishing device | |
| CN106712756B (en) | Composite switch | |
| CN205407767U (en) | Unidirectional thyristor triggers throttling circuit and trigger device thereof | |
| CN101711067A (en) | LED electroluminescence circuit | |
| CN106847581B (en) | Electronic arc eliminating feedback device and arc-control device | |
| CN106980039A (en) | Zero crossing detection device and synchro switch | |
| CN206627562U (en) | Zero crossing detection device and synchro switch | |
| CN103852676A (en) | Passive contact detection device and method | |
| CN203799966U (en) | Signal acquisition circuit structure of relay anti-abrupt change impact protection system | |
| CN203631410U (en) | Vacuum circuit breaker controlling circuit and vacuum circuit breaker controlling system | |
| CN108781049A (en) | Alternative electric generation machine braking device | |
| CN103490604B (en) | A kind of device power supply (DPS) delay protection circuit | |
| CN206629042U (en) | Composite switch | |
| CN103681094B (en) | A kind of vacuum circuit breaker control circuit and system | |
| CN203406793U (en) | Composite switch power supply | |
| CN205584169U (en) | Establish ties and get electric capacity touch switch | |
| CN203086789U (en) | Power supply device and light-emitting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170725 |