CN108736874A - A kind of intelligent distant control MOSFET power electronics alternating-current switch device - Google Patents
A kind of intelligent distant control MOSFET power electronics alternating-current switch device Download PDFInfo
- Publication number
- CN108736874A CN108736874A CN201810898047.2A CN201810898047A CN108736874A CN 108736874 A CN108736874 A CN 108736874A CN 201810898047 A CN201810898047 A CN 201810898047A CN 108736874 A CN108736874 A CN 108736874A
- Authority
- CN
- China
- Prior art keywords
- power electronics
- unit
- current switch
- alternating
- control
- 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.)
- Granted
Links
- 230000005669 field effect Effects 0.000 claims abstract description 71
- 238000004891 communication Methods 0.000 claims abstract description 19
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 7
- 230000005611 electricity Effects 0.000 claims description 23
- 238000004146 energy storage Methods 0.000 claims description 18
- 239000004065 semiconductor Substances 0.000 claims description 17
- 229910044991 metal oxide Inorganic materials 0.000 claims description 14
- 150000004706 metal oxides Chemical class 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000001629 suppression Effects 0.000 claims description 8
- 230000001052 transient effect Effects 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000295 complement effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 2
- 239000004576 sand Substances 0.000 claims 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 10
- 238000010586 diagram Methods 0.000 description 10
- 229910052710 silicon Inorganic materials 0.000 description 10
- 239000010703 silicon Substances 0.000 description 10
- 238000013461 design Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 230000002045 lasting effect Effects 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- 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
- H03K17/687—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 field-effect transistors
- H03K17/6871—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 field-effect transistors the output circuit comprising more than one controlled field-effect transistor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K17/082—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit
- H03K17/0822—Modifications for protecting switching circuit against overcurrent or overvoltage by feedback from the output to the control circuit in field-effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/16—Modifications for eliminating interference voltages or currents
- H03K17/161—Modifications for eliminating interference voltages or currents in field-effect transistor switches
- H03K17/162—Modifications for eliminating interference voltages or currents in field-effect transistor switches without feedback from the output circuit to the control circuit
- H03K17/163—Soft switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
- H03K2017/0803—Modifications for protecting switching circuit against overcurrent or overvoltage against radiation hardening
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0009—AC switches, i.e. delivering AC power to a load
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0036—Means reducing energy consumption
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/0081—Power supply means, e.g. to the switch driver
Abstract
A kind of intelligent distant control MOSFET power electronics alternating-current switch device, including logical operation and remote circuit unit, flexible drive circuit unit, MOSFET power electronics alternating-current switch units and single line Auxiliary Power Units.Logical operation is connect and is controlled MOSFET power electronics alternating-current switch units by flexible drive circuit unit with remote circuit unit；Single line Auxiliary Power Units are powered to logical operation and remote circuit unit and MOSFET power electronics alternating-current switch units respectively；Described device utilizes the low-loss power electronics alternating-current switch of bidirectional conduction ability scores of mos field effect transistor；Using flexible drive circuit for eliminating or switch spike is reduced, communication and remote control are realized using WiFi, Zigbee or infrared ray means.The present invention has remote-control communication ability；Contactless not arcing, work safety；On state voltage is low, loss is small, it can be achieved that flexible open and workflow flexibility；Switch spike is low, and Electro Magnetic Compatibility is good, is provided simultaneously with overcurrent protection ability.
Description
Technical field
The present invention relates to a kind of intelligent distant control MOSFET power electronics alternating-current switch devices, belong to power electronics field.
Background technology
Power electronics alternating-current switch is compared with mechanical switch, fast response time, contactless not arcing, safety higher, the longevity
Life length.Traditional power electronics alternating-current switch is mostly made of two silicon-controlled inverse parallels.It is silicon-controlled to belong to half control type device, once
After silicon-controlled stable conducting, conducting whether, is determined by external circuit, is only less than close to zero when flowing through silicon-controlled electric current
Maintenance electric current when can just turn off.When silicon-controlled power electronics alternating-current switch control inductive loads, due to the work of inductive load
With, even if after the shutdown control signal for sending out power electronics alternating-current switch, the electric current in circuit can not immediately turn off, and incite somebody to action
Continue to and flow through silicon-controlled electric current less than the maintenance electric current close to zero, longest delay is up to half period namely such operating mode
Under the conditions of cannot achieve immediately control shutdown line current.
There are many power electronics alternating-current switch constitutes scheme, and suitable mode can be used in all kinds of full-control type power devices
It constitutes.Mos field effect transistor (MOSFET) is full-control type power device and has a bidirectional conduction ability,
And when mos field effect transistor (MOSFET) reverse-conducting, conduction impedance very little, synchronous rectification
Utilize this characteristic.Using these characteristics of mos field effect transistor (MOSFET), low-loss can be built
MOSFET power electronics alternating-current switch.
Compared with traditional silicon-controlled power electronics alternating-current switch, MOSFET power electronics alternating-current switch can open pass immediately
Power-off stream, and break-make control can be carried out with high-frequency mode, control ability is strong and more flexible.
When needing circuit constant conduction, due to AC current meeting zero crossing, be connected before current over-zero silicon-controlled
Also it will turn off, in order to maintain silicon-controlled constant conduction, it is necessary to which giving driving trigger signal again makes controlled silicon conducting.Compare and
Speech, mos field effect transistor (MOSFET) is level driver type device need to apply always when needing its conducting
Add drive signal and as voltage driven type device, driving power is low.Therefore, MOSFET power electronics alternating-current switch is not necessarily to per half
A ac period constantly applies driving again, and drive control is more convenient.
When the circuit that power electronics alternating-current switch is controlled is inductive load circuit, while in view of spuious in circuit
Inductance such as carries out common drive control, and due to u=L*di/dt, switch time is too short to will produce very high switch spike electricity
It presses, or even the electromagnetic interference burnt power electronics alternating-current switch or cause circuit excessively high, jeopardizes line facility, it is such to avoid
Certain technological means need to be had by happening.Currently, power electronics soft switch technique compares, application is numerous, and purpose includes reducing
Switching loss reduces electromagnetic interference.Power electronics soft switch technique scheme is too numerous to enumerate, and power electronics soft switch technique is straight
It scoops out for power electronics alternating-current switch and is centainly suitble to, especially when the control frequency of power electronics alternating-current switch is not high
In the case of.In the application of general power electronics soft switch technique mainly for power device itself loss, in Sofe Switch control
System only need to consider stray inductance with design, and under power electronics alternating-current switch application scenarios, the load in circuit
It is that inductive load and inductive component can also be very big, at this moment for general soft switch technique with regard to inappropriate, it is other suitable to use
Technical solution.
Power electronics alternating-current switch needs accessory power supply to be powered with driving to control, communication.Traditional accessory power supply
Scheme is that two-wire enters line i.e. firewire L and zero curve N accesses single line accessory power supply.However for numerous industry and commerce and civilian household
Equal application scenarios, the enter line and control line of a large amount of alternating-current switch are only single line-L lines (being commonly called as firewire), it is then desired to which two-wire enters
The accessory power supply scheme of line may and be not suitable for.Meanwhile if accessory power supply is also equipped with energy stores and releasability can be significantly
Improve whole system reliability.
All kinds of facilities are intended to as many applications of representative have communication and remote control capability using smart home, meanwhile, electric power
Electronic ac switch such as has remote control capability and can further improve control flexibility and practicability.
Invention content
The object of the present invention is in order to realize have instant turn-off capacity it is low with overcurrent protection ability, electromagnetic interference and have
The power electronics alternating-current switch of the low conduction loss of standby remote function, the present invention propose a kind of intelligent distant control MOSFET electric power
Electronic ac switch device.
Realize that technical scheme is as follows, a kind of intelligent distant control MOSFET power electronics alternating-current switch device, including
Logical operation and remote circuit unit, flexible drive circuit unit, MOSFET power electronics alternating-current switch units and single line
Auxiliary Power Units.Logical operation is connect and is controlled MOSFET electricity by flexible drive circuit unit with remote circuit unit
Power electronic ac switch unit；Single line Auxiliary Power Units are respectively to logical operation and remote circuit unit and MOSFET electricity
Power electronic ac switch unit is powered.
Described device utilizes the low-loss electricity of bidirectional conduction ability scores of mos field effect transistor
Power electronic ac switch；Using flexible drive circuit for eliminating or switch spike is reduced, using WiFi, Zigbee or infrared ray means
Realize communication and remote control.
The MOSFET power electronics alternating-current switch unit controls for realizing the break-make on AC mains road, it is by electric power
Electronic ac switch main body, overvoltage protection branch and Current Transmit are constituted；Power electronics alternating-current switch main body is protected with overvoltage
It connects with Current Transmit after shield branch circuit parallel connection.
The power electronics alternating-current switch main body is anti-by two mos field effect transistor with model
To being connected in series, i.e. the first mos field effect transistor Q1With the second metal oxide semiconductcor field effect
Answer transistor Q2Source electrode link together constitute S, two mos field effect transistor Q1And Q2Grid connect
It is connected together and constitutes G, two mos field effect transistor Q1And Q2Share the same driving end, two field effects
Answer transistor Q1And Q2The first drain D of drain electrode1, the second drain D2It is connect with AC mains road.
The overvoltage protection branch route two-way Transient Suppression Diode TVS, resistance RSWith capacitance CSIt constitutes；Resistance RSWith electricity
Hold CSOne end is connected with two-way Transient Suppression Diode TVS after parallel connection；Resistance RSWith capacitance CSOther end connection electricity after parallel connection
Second drain D of power electronic ac switch main body2, the other end connection power electronics exchange of two-way Transient Suppression Diode TVS
First drain D of switch main body1, for protecting two mos field effect transistor.
The Current Transmit takes electricity for current sample and electric energy, is provided simultaneously with two functions.
The function of the logical operation and remote circuit unit is to receive external remote control instruction and by instruction by patrolling
Operation is collected, and controls MOSFET power electronics alternating-current switch units, realizes the break-make control on AC mains road；Carrying out break-make control
The communication report practical break-make situation of MOSFET power electronics alternating-current switch is carried out with outside after system, by WiFi, Zigbee or
Infrared ray means realize communication and remote control.
The logical operation is that remote terminal transmission remote signal is remotely controlled signal with remote circuit workflow
After input, remote signal is received and is decoded, carry out drive control output, logical operation is carried out with driving enable signal
Afterwards, it carries out driving to export and send driving control signal to driving unit, realizes MOSFET power electronics alternating-current switch units
It opens and is controlled with shutdown, and then realize the break-make control on AC mains road；It is whole to remote control to send switch state signal in real time simultaneously
End carries out real-time communication.
When remote signal inputs reception and is decoded as open signal ON high level, signal self-locking, the signal and drive are carried out
Dynamic enable signal carries out enabling logic operation, is exported into horizontal-drive signal to driving unit, opens control G_on outputs, simultaneously will
Shutdown control G_off interlockings, MOSFET power electronics alternating-current switch units are open-minded, meanwhile, switch state signal is sent to distant
Control terminal, report exchange main circuit is opening state.
When remote signal OFF inputs receive and are decoded as open signal OFF, signal self-locking, the signal and driving are carried out
Enable signal carries out shutdown logical operation, is exported into horizontal-drive signal to driving unit, shutdown control G_off outputs simultaneously will
Open control G_on interlockings, the shutdown of MOSFET power electronics alternating-current switch units；To shutdown control G_off high level outputs when
Between carry out control be equal to half ac cycle, such as exchange main circuit period be 20ms, then control its duration be 10ms,
To reduce system power and energy loss, switch state signal is sent to remote terminal, report exchange main circuit is shutdown shape
State.
The flexible drive circuit unit includes that driving unit enables circuit unit with driving.
The flexible drive circuit unit is opened extending with by way of the turn-off time, and metal-oxide semiconductor (MOS) is reduced
Field-effect transistor Q1, Q2 are opened and shutdown due to voltage spikes, protection mos field effect transistor Q1 and Q2.
The flexible drive circuit unit utilize alternating current exchange variation characteristic, instantaneous value can cyclically-varying to compared with
It is small to be worth and cross null character, implement shutdown realization metal oxide semiconductcor field effect in zero-crossing of alternating current or smaller alternating current
The workflow flexibility of transistor is answered, the Electro Magnetic Compatibility of system is improved while even eliminating shutdown due to voltage spikes to reduce；
The flexible drive circuit unit by increasing, open and turn-off time, reduction are opened by mos field effect transistor
The Electro Magnetic Compatibility of system is improved while the logical due to voltage spikes with shutdown.
The flexible drive circuit unit realizes that overcurrent protection function, current sample are handed over by MOSFET power electronics simultaneously
It is obtained at Current Transmit in stream switch；It includes that shutdown drives enabled and overcurrent protection that the driving, which enables circuit unit,
Two functions, and drive enabled EN_off and overcurrent protection PR to be controlled respectively shutdown.
The single line accessory power supply is constituted by adopting electric unit, charhing unit, direct voltage output unit and energy-storage units；Institute
The input terminal for stating charhing unit is to adopt electric unit, the output connection direct voltage output unit and energy-storage units of charhing unit, directly
It flows voltage output unit and connects DC load, suitable DC voltage is provided to DC load；Charhing unit is filled to energy-storage units
Electricity.
The DC load include logical operation with remote circuit unit with it is straight needed for flexible drive circuit unit
Galvanic electricity source；The energy-storage units are made of super capacitor or accumulator, preferably super capacitor.
It is described adopt electric unit and be divided into first and adopt electric unit and second adopt electric unit；First, which adopts electric unit and second, adopts electric unit
For complementary working mode, will not work at the same time；First, which adopts electric unit, adopts the output-parallel of electric unit with second and connect.
MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnect when, first adopt electric unit work；
MOSFET power electronics alternating-current switch units be closed and AC mains road be closed when, second adopt electric unit work；First adopts electric list
Member is parallel on MOSFET power electronics alternating-current switch units, is then only connected to firewire L and Current Transmit primary side and is exchanged
Between the intersection point M of main line load；When MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnects, first
It adopts electric unit to access among entire AC mains road, the first electric current for adopting electric unit is flowed through to obtain energy, but must control
Size loads to avoid logical AC mains road is opened by mistake；Second adopts electric unit connect with Current Transmit pair side, obtains energy.
MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnect when, first adopt electric unit work；
MOSFET power electronics alternating-current switch units be closed and AC mains road be closed when, second adopt electric unit work.
The invention has the advantages that intelligent distant control MOSFET power electronics alternating-current switch of the present invention, has remote-control communication
Ability；Contactless not arcing, when work, are safer；On state voltage is low, loss is small, it can be achieved that flexible open and workflow flexibility；It opens
Pass spike is low, and Electro Magnetic Compatibility is good, is provided simultaneously with overcurrent protection ability.Single line Auxiliary Power Units only need firewire L, are not necessarily to zero curve
The input of N, simplifies track laying, reduces cost.The configuration of the present invention is simple, performance are good, reliability is high, highly practical.System
System has high reliability and low-loss, solves and dangerous caused by the arcing of current contactor control circuit is asked with short life etc.
Topic and the loss of SCR AC electronic power switch are big, control inflexible problem, and system has overcurrent protection function, also
Have communication and distant control function, keeps system control more flexible with monitoring means.Present invention can apply to all kinds of industrial and mining enterprises and
A variety of occasions such as smart home, have vast market prospect.
Description of the drawings
Fig. 1 is the functional block diagram of intelligent distant control MOSFET power electronics alternating-current switch of the present invention；
Fig. 2 is the MOSFET power electronics alternating-current switch units of intelligent distant control MOSFET power electronics alternating-current switch of the present invention
Circuit, wherein 1 is power electronics alternating-current switch main body, and 2 be overvoltage protection branch, and 3 be current transformer；
Fig. 3 is the driving unit of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch flexible drive circuit units
Circuit；
Fig. 4 is that the driving of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch flexible drive circuit units is enabled
Circuit unit circuit.
Fig. 5 is that the electric unit of adopting of intelligent distant control MOSFET power electronics alternating-current switch single line Auxiliary Power Units of the present invention connects
Connect schematic diagram；
Fig. 6 adopts electric single for the second of intelligent distant control MOSFET power electronics alternating-current switch single line Auxiliary Power Units of the present invention
First circuit diagram；
Fig. 7 is the single line Auxiliary Power Units structure diagram of intelligent distant control MOSFET power electronics alternating-current switch of the present invention；
Fig. 8 is logical operation and the remote circuit list of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch
First workflow block diagram.
Fig. 9 is logical operation and the remote circuit list of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch
Member is controlled using infrared red line -- the work sheet of moral bodyguard TV remote controller pattern.
Specific implementation mode
The specific implementation mode of the present invention is as shown in the picture.
Fig. 1 is the present embodiment intelligent distant control MOSFET power electronics alternating-current switch structure diagrams, including logical operation with it is logical
Interrogate remote control circuit unit, flexible drive circuit unit, MOSFET power electronics alternating-current switch units and single line Auxiliary Power Units.
The logical operation of the present embodiment completes logic control with remote circuit, using WiFi, Zigbee or infrared ray
Etc. means realize communication and remote control.
The flexible drive circuit unit of the present embodiment realizes mos field effect transistor (MOSFET)
Flexible drive reduces mos field effect transistor (MOSFET) and opens and shutdown due to voltage spikes, protection metal
Has better Electro Magnetic Compatibility while oxide semiconductor field effect transistor (MOSFET).
The MOSFET power electronics alternating-current switch units of the present embodiment utilize mos field effect transistor
(MOSFET) the low-loss power electronics alternating-current switch of bidirectional conduction ability scores realizes the break-make control on AC mains road.
The single line Auxiliary Power Units of the present embodiment are to logical operation and remote circuit unit and flexible drive circuit
Unit provides power supply.
Fig. 2 is the MOSFET power electronics alternating-current switch lists of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch
First circuit.MOSFET power electronics alternating-current switch element circuits realize the break-make control on AC mains road, it includes power electronics
Alternating-current switch main body 1, overvoltage protection branch 2 and current transformer 3.
The basic principle of MOSFET power electronics alternating-current switch units is to utilize metal oxide semiconductor field effect transistor
Pipe (MOSFET) has bidirectional conduction ability and the small characteristic of on-state loss.Work as mos field effect transistor
(MOSFET) when reverse-conducting, conduction impedance is extremely low, and on-state loss is small.
The power electronics alternating-current switch main body 1 of MOSFET power electronics alternating-current switch unit, utilizes metal in the present embodiment
The low-loss power electronics alternating-current switch of bidirectional conduction ability scores of oxide semiconductor field effect transistor (MOSFET), will
Two mos field effect transistor (MOSFET) Q1 and Q2 differential concatenations with model are formed by connecting, i.e., two
The source electrode of mos field effect transistor (MOSFET), which links together, constitutes S, and two metal oxides are partly led
The grid of body field-effect transistor (MOSFET), which links together, constitutes G, and two MOSFET share the same driving end, two gold
Belong to the drain D of oxide semiconductor field effect transistor (MOSFET)1、D2It is connect with AC mains road.It is golden based on Q1, Q2 in figure
Belong to oxide semiconductor field effect transistor (MOSFET)；Diode VD1, VD2 are the body two colonized in respective MOSFET pipes
Pole pipe, i.e. parasitic diode.
When the both ends G, S apply driving voltage, two mos field effect transistor (MOSFET) Q1 and
Q2 is both turned on, when electric current is from D1Flow to D2When, mos field effect transistor (MOSFET) Q1 reverse-conductings, gold
Belong to oxide semiconductor field effect transistor (MOSFET) Q2 forward conductions；When electric current is from D2Flow to D1When, metal oxide is partly led
Body field-effect transistor (MOSFET) Q1 forward conductions, mos field effect transistor (MOSFET) Q2 are reversely led
It is logical；Extremely low conducting internal resistance, steady operation when due to mos field effect transistor (MOSFET) reverse-conducting
Though when body diode VD1, VD2 current direction be not turned on.When not applying driving voltage at the both ends G, S, Q1, Q2 are closed
Disconnected, the power electronics alternating-current switch main body shutdown of MOSFET power electronics alternating-current switch units namely MOSFET power electronics are handed over
Flow switch OFF.Which kind of operating mode no matter body diode VD1, VD2, which work in steady operation, is turned off.
The overvoltage protection branch 2 of the MOSFET power electronics alternating-current switch units of the present embodiment constitutes as follows, resistance RSWith
Capacitance CSIt connects with two-way Transient Suppression Diode TVS after in parallel, three constitutes overvoltage protection branch, is parallel to metal oxidation
The drain D of object semiconductor field effect transistor (MOSFET) Q1, Q21、D2On, for protecting metal oxide semiconductcor field effect
Answer transistor (MOSFET) Q1, Q2.The overvoltage protection branch that this three is constituted, is analogous to the buffer circuit of device for power switching,
When opening with shutdown due to voltage spikes in D for mos field effect transistor (MOSFET)1、D2The voltage at both ends is high
When the breakdown voltage of two-way Transient Suppression Diode TVS, this overvoltage protection branch work, operation principle is analogous to absorption electricity
Road.
The overvoltage protection branch that this three is constituted is designed according to actual needs, and works as metal oxide semiconductor field-effect
Transistor (MOSFET) open with shutdown due to voltage spikes and it is little when, it may not be necessary to install additional this three composition overvoltage protection
Branch.
The current transformer 3 of the MOSFET power electronics alternating-current switch units of the present embodiment takes for current sample and electric energy
Electricity is provided simultaneously with two functions.The primary side of Current Transmit can be designed to single turn or multiturn in order to sample and take electricity, former
Turn ratio while with pair is designed by actual demand.When the primary side of known current transformer CT can carry out multiturn design,
Professional is had been able to realize with Current Transmit relevant other designs.
Fig. 3 is the driving unit of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch flexible drive circuit units
Circuit.
Flexible drive circuit unit of the present invention realizes mos field effect transistor (MOSFET)
The flexible drive of Q1, Q2 reduce mos field effect transistor (MOSFET) and open and shutdown due to voltage spikes, guarantor
Has better Electro Magnetic Compatibility while protecting mos field effect transistor (MOSFET).
The flexible drive circuit unit includes that driving unit enables circuit unit with driving.When the present embodiment is intelligently distant
When the circuit that control MOSFET power electronics alternating-current switch is controlled is inductive load circuit, while in view of the stray electrical in circuit
Sense, such as carries out common drive control, and due to u=L*di/dt, switch time is too short to will produce very high switch spike voltage,
The electromagnetic interference even burnt mos field effect transistor (MOSFET) or cause circuit excessively high, jeopardizes line
Pipeline equipment.For this purpose, the present embodiment uses flexible drive circuit, reduction is opened and shutdown due to voltage spikes, reduction metal oxide
Semiconductor field effect transistor (MOSFET) is opened and shutdown due to voltage spikes, protection mos field effect transistor
(MOSFET) has better Electro Magnetic Compatibility while.
The scheme that the driving unit of the present embodiment flexible drive circuit unit uses is opens and the turn-off time by extending
Mode, reduce mos field effect transistor (MOSFET) Q1, Q2 open with shutdown due to voltage spikes, protection gold
Belong to oxide semiconductor field effect transistor (MOSFET) Q1, Q2.General driving circuit is that shortening is opened and the turn-off time
To reduce switching loss, and the flexible drive circuit unit of the present embodiment is then to reduce electricity with the turn-off time by increasing to open
Magnetic disturbance.
The driving unit technical principle is by inhibiting driving voltage UGSClimbing and rate of descent and increase metal oxidation
Object semiconductor field effect transistor (MOSFET) open and the turn-off time, to reduce open with shutdown due to voltage spikes, and carry
The high Electro Magnetic Compatibility of system.
U=L*di/dt, u are to be switched on or off due to voltage spikes, and L is stray inductance, and i is to flow through metal-oxide semiconductor (MOS)
The both ends field-effect transistor (MOSFET) D, S electric current, in the present embodiment to flow through metal oxide semiconductor field effect transistor
Manage the drain D of (MOSFET) Q1, Q21、D2Electric current, t be switched on or off the time.
The control G_on that opens of driving unit possesses respectively different input terminals from shutdown control G_off and mutually interlocks,
It exports the both ends G, S that G, S each are attached to MOSFET power electronics alternating-current switch units.
It is flexible open-minded：When being added in opening for mos field effect transistor (MOSFET) T51 grids and source electrode
Logical driving control signal G_on is that lasting high level signal inputs, and is added in the shutdown drive control letter of optocoupler primary side diode
When number G_off is lasting low level signal input, the secondary frontier juncture of T51 conductings, optocoupler U51 is disconnected.Power supply VCCIt is passed through by resistance R51
The drain electrode of T51 is charged with source side to capacitance C51, and its charge constant τon=R51*C51, the voltage U at the both ends G, SGSThus
Slowly rise, to extend the service time t of mos field effect transistor (MOSFET) Q1 and Q2on.It is open-minded
Time tonThe RC circuit time constants τ constituted by resistance R51 and capacitance C51onIt influences, by controlling resistance R1 and capacitance C1's
State modulator can control service time ton。
Workflow flexibility：When opening that control signal G_on is lasting low level signal input and G_off is lasting height electricity
When ordinary mail number inputs, then mos field effect transistor (MOSFET) turns off, and two side of primary side of optocoupler U51 is managed
Electricity is connected to the secondary side of optocoupler U51, and capacitance C51 discharges to resistance R54, UGSVoltage thus slowly declines, to extend metal
The turn-off time t of oxide semiconductor field effect transistor (MOSFET)off.Turn-off time toffThe RC electricity constituted by R54 and C51
Road timeconstantτoffIt influences, the state modulator by controlling R54 and C51 can control turn-off time toff。
The drive control G_on that opens is applied to mos field effect transistor through resistance R52
(MOSFET) T51 grids and source electrode；It manages on two side of primary side that the shutdown drive control G_off is applied to optocoupler U51 through resistance R53
On.
Zener diode D1 is parallel to the both ends G, S, is protected for driving voltage, keeps G, S both end voltage excessively high to protect
Protect mos field effect transistor (MOSFET) Q1, Q2.
It is controlled in addition, analog switch replacement T51 or U51 can be used in the driving unit circuit.
The parameter selection of capacitance C51 and resistance R51, R54 mutually constrain, and need to be designed according to practical application soft to control
Property is opened and turn-off delay time.
Fig. 4 is that the driving of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch flexible drive circuit units is enabled
Circuit unit circuit.
The flexible drive circuit unit of the present embodiment includes that driving enables circuit unit and driving unit.The flexible drive
Circuit unit realizes that overcurrent protection function, current sample pass through the current transformer in MOSFET power electronics alternating-current switch simultaneously
It is obtained at CT；The enabled circuit unit of the driving includes that shutdown drives enabled and two functions of overcurrent protection, and shutdown is driven
Dynamic enabled EN_off and overcurrent protection PR is controlled respectively.
The driving of the present embodiment enables the flexibility that circuit realizes mos field effect transistor (MOSFET)
It turns off, driving enabled circuit to be divided by function, AC mains road current sample, full-bridge rectification, shutdown driving enables and overcurrent
Protection.
AC mains road current sample：Current Transmit samples AC mains road electric current, and assumes that electric current is mutual
Sensor CT primary sides/secondary current ratio is Ki, capacitance C11 is in parallel with the secondary side of Current Transmit, is used for High frequency filter, eliminates high
Frequency interferes, and capacitance is smaller.The terminal voltage of C11 is AC mains road current sample output Ui。
Full-bridge rectification：Full bridge rectifier bridge BR2 is connected to after C11, by UiIt carries out full-bridge rectification and obtains DC voltage Ur, by
It is U to be exported in full-bridge rectificationr。
Ur=| Ui|-2Ud,
U in formuladFor the forward drop of single diode in rectifier bridge BR2, the diode of rectifier bridge BR2 can select general
Logical diode either SiC schottky diode, needs to design according to real work.
Shutdown driving is enabled：Resistance R14 and R15 constitutes series voltage divider to UrIt is divided, the output connection of divider
Resistance R10 and R12 access comparator.Work as UrLess than reference voltage UrefWhen, judge that AC mains road electric current is smaller, shutdown is enabled
Output EN_off is high level output, sends out signal at this time, allows to turn off MOSFET power electronics alternating-current switch.In addition, with reference to
Voltage UrefFor a smaller value, it is designed with specific reference to practical application.
R10 and R11 and operational amplifier U2A constitutes comparator and sets the resistance value of R11 wherein in order to constitute comparator
It counts into and is far longer than R10, such as 1000 times of R10 values.Due to Ur=| Ui|-2Ud, therefore reference voltage UrefShould not design it is excessive with
It is excessive to exempt from corresponding current value.
Overcurrent protection：It is enabled in parallel with shutdown driving, it is connected in after operational amplifier output Uc, when Uc is more than setting
Reference value Uref1When, it is judged as that AC mains road electric current is excessive, it is low level output to enable output PR, sends out signal at this time, by force
System shutdown MOSFET power electronics alternating-current switch.
Rectifier bridge BR2 is constituted using Ultrafast recovery diode；Reference voltage UrefWith Uref1Both correspond to certain exchange master
Electric line size of current need to be designed, U according to practical applicationrefWith Uref1The high-precision side that reference voltage is added can be utilized
Formula, or obtained in the way of obtaining suitable voltage etc. in the way of electric resistance partial pressure from the+5V/-5V of DC power supply.
Fig. 5 is that the electric unit of adopting of intelligent distant control MOSFET power electronics alternating-current switch single line Auxiliary Power Units of the present invention connects
Connect schematic diagram.
The single line Auxiliary Power Units of the present embodiment are to logical operation and remote circuit unit and flexible drive circuit
Unit etc. provides power supply.The single line Auxiliary Power Units of the present embodiment, which are divided into, adopts electric unit and subsequent cell.
It is described adopt electric unit and be divided into first and adopt electric unit and second adopt electric unit two parts.First adopt electric unit with
MOSFET power electronics alternating-current switch unit is in parallel, is connected between firewire L and M, and wherein L is the firewire L, M on AC mains road
For the intersection point of Current Transmit primary side and the load of AC mains road, firewire L, the zero curve N of unusual accessory power supply are inputted
Input mode.Second adopt electric unit then connect with Current Transmit pair side, also different from the input mode of conventional power source.
MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnect when, first adopt electric unit work.
MOSFET power electronics alternating-current switch units be closed and AC mains road be closed when, second adopt electric unit work.
First, which adopts electric unit, is parallel on MOSFET power electronics alternating-current switch units, when MOSFET power electronics exchanges
Switch unit disconnects and AC mains road first is adopted electric unit and accessed among entire AC mains road when disconnecting, forming circuit to
Energy is obtained, but must be controlled and be flowed through first and adopt the size of current of electric unit to avoid the load of logical AC mains road is opened by mistake.Second
It adopts electric unit to connect with Current Transmit pair side, when the conducting of MOSFET power electronics alternating-current switch units, AC mains road is led
Energy is obtained when logical.
The subsequent cell includes charhing unit, direct voltage output unit, energy-storage units.
The input terminal of the charhing unit is to adopt electric unit, output connection direct voltage output unit and energy storage list
Member, direct voltage output unit connect DC load, and suitable DC voltage is provided to DC load.Charhing unit can be to energy storage
Unit charges, under particular job, when being not enough to maintain the power demand of DC load of charhing unit, and energy-storage units electric discharge,
It powers to direct voltage output unit, to provide suitable DC voltage to DC load.Energy-storage units of the present invention can
It is made of super capacitor or accumulator, preferably super capacitor.
Fig. 6 adopts electric single for the second of intelligent distant control MOSFET power electronics alternating-current switch single line Auxiliary Power Units of the present invention
First circuit diagram.
Second described in the present embodiment, which adopts electric unit, is connected on the secondary side of Current Transmit, in Current Transmit
Secondary side shunt capacitance C11 to filter out High-frequency Interference, the secondary side of Current Transmit is the input of rectifier bridge BR2, rectifier bridge BR2
Output be Uc, Uc is the second output for adopting electric unit, is followed by charhing unit.
Fig. 7 is the single line Auxiliary Power Units structure diagram of intelligent distant control MOSFET power electronics alternating-current switch of the present invention.
Single line Auxiliary Power Units described in the present embodiment are to logical operation and remote circuit unit and flexible drive
The DC loads such as circuit unit provide power supply, wherein the driving for mos field effect transistor (MOSFET)
Power unit uses isolation circuit.The single line accessory power supply by adopt electric unit, charhing unit, direct voltage output unit and
Energy-storage units are constituted.
The input terminal of the charhing unit is to adopt electric unit, output connection direct voltage output unit and the storage of charhing unit
Can unit, direct voltage output unit connects DC load, and suitable DC voltage is provided to DC load, and charhing unit is to storage
It can unit charging.Under particular job, when being not enough to maintain the power demand of DC load of charhing unit, energy-storage units are put
Electricity is powered to direct voltage output unit, to provide suitable DC voltage to DC load.Super capacitor/accumulator serves as
The energy storage elements of the single line accessory power supply of the present embodiment, preferably super capacitor.DC load described in the present embodiment includes
Logical operation and the DC power supply needed for remote circuit unit and flexible drive circuit unit etc..
Electric unit of adopting in the present embodiment is divided into first and adopts electric unit and second and adopts electric unit two parts, and first adopts electric unit
It is complementary working mode to adopt electric unit with second, will not be worked at the same time；First, which adopts electric unit and second, adopts the output of electric unit simultaneously
Connection connection.
First described in the present embodiment to adopt electric unit in parallel with MOSFET power electronics alternating-current switch units, when MOSFET electricity
When power electronic ac switch disconnects, AC mains road disconnects, at this time single line accessory power supply and AC mains road connected in series with the load
Between firewire L and zero curve N, first adopts electric unit work once electrified.When MOSFET power electronics alternating-current switch is closed, exchange master
Circuit is closed, and AC mains road loads electric, and AC mains road will flow through electric current, and Current Transmit work, second adopts electric list
Member work.First, which adopts electric unit and second, adopts electric unit alternation, will not work at the same time.The first of the present embodiment adopts electric unit
Input is firewire L and M, and wherein L is that the firewire L, M on AC mains road are the friendship of Current Transmit and the load of AC mains road
Point inputs firewire L, the zero curve N input modes of unusual accessory power supply；Second input for adopting electric unit is then Current Mutual Inductance
The secondary side of device CT, also different from traditional approach.
In order to ensure that the load of AC mains road will not mislead under adopting electric unit working condition first, flow through single line auxiliary
The electric current of power supply is minimum, such as design current is less than 0.5mA, or is designed according to actual demand.Due to AC mains road
Load unknown, thus the single line Auxiliary Power Units of the present embodiment have impedance ability to adapt in its work once electrified state
The operating condition of different AC mains road loads.The single line Auxiliary Power Units of the present embodiment can take invariable power input control
Mode or constant current input control mode etc. are specifically designed by actual demand.
It adopts electric unit and connects charhing unit and direct voltage output unit later, charhing unit can charge to energy-storage units,
Direct voltage output unit provides steady dc voltage output supply DC load.For example it when the conducting of exchange main circuit but flows through
Electric current it is too small when being not enough to provide enough power to DC load etc. under special operation conditions, by for example super electricity of energy storage elements
Perhaps accumulator serves as DC power supply and provides steady dc voltage output supply DC load through direct voltage output unit.
The charhing unit circuit topology of the single line accessory power supply of the present embodiment uses inverse-excitation type switch power-supply circuit or other
Suitable circuit topology.
The single line Auxiliary Power Units output voltage type of the present embodiment includes：+ 5V/-5V (V+/V-) gives operational amplifier
Power supply ,+5V power to logical operation and remote circuit, and+15V (Vcc) powers to flexible drive circuit unit.
Fig. 8 is logical operation and the remote circuit list of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch
First workflow block diagram.
The logical operation of the present embodiment is that remote terminal transmission remote signal progress is distant with remote circuit workflow
After controlling signal input, remote signal is received and is decoded, carry out drive control output, logic is carried out with driving enable signal
After operation, carries out driving and export and send driving control signal to driving unit, realize MOSFET power electronics alternating-current switch lists
Opening for member is controlled with shutdown, and then realizes the break-make control on AC mains road；Switch state signal is sent in real time simultaneously to distant
Control terminal carries out real-time communication.
The logical operation of the present embodiment includes enabling logic operation and shutdown two class of logical operation.
Circuit is enabled for the driving of intelligent distant control MOSFET power electronics alternating-current switch, it is high electricity to enable output EN_off
To allow to turn off MOSFET power electronics alternating-current switch, it is to be forced shutdown MOSFET that enabled output PR, which is low level output, for flat output
Power electronics alternating-current switch.
For flexible drive circuit unit, opens control G_on and possess respectively different input terminals from shutdown control G_off
And mutually interlock, output G, S each are attached to the both ends G, S of MOSFET power electronics alternating-current switch units.
Enabling logic operation：When remote signal inputs reception and is decoded as open signal ON high level, signal is carried out certainly
Lock, the signal carry out enabling logic operation with driving enable signal, are exported to driving unit, such as into horizontal-drive signalWhen, control G_on high level outputs are opened, while being that low level is defeated by shutdown control G_off interlockings
Going out, MOSFET power electronics alternating-current switch units are open-minded, meanwhile, switch state signal is sent to remote terminal, report exchange
Main circuit is opening state.
Turn off logical operation：When remote signal OFF inputs receive and are decoded as open signal OFF, signal self-locking is carried out,
The signal carries out shutdown logical operation with driving enable signal, is exported to driving unit, such as into horizontal-drive signalWhen, shutdown control G_off high level outputs, while it is that low level is defeated that will open control G_on interlockings
Go out, the shutdown of MOSFET power electronics alternating-current switch units.To shutdown control G_off high level outputs time carry out control for etc.
In half of ac cycle, the period for such as exchanging main circuit is 20ms, then it is 10ms to control its duration, to reduce system power
With energy loss.Meanwhile switch state signal is sent to remote terminal, report exchange main circuit is off state.
A variety of different implementations can be used in physical circuit, for professional can designed, designed, no longer provide
Detailed circuit.
In addition to the specific logical operation mode proposed, other logical operation realization methods can also be flexibly used, such as
With the negative logic operation mode of specific logical operation etc. proposed.
It is remotely controlled the form realized, WiFi, Zigbee or infrared ray etc. means can be used and realize communication and remote control, preferably
WiFi or infrared mode.
Fig. 9 is logical operation and the remote circuit list of the present embodiment intelligent distant control MOSFET power electronics alternating-current switch
Member is controlled using infrared red line -- the work sheet of moral bodyguard TV remote controller pattern.
It is remotely controlled the form realized, WiFi, Zigbee or infrared ray etc. means can be used and realize communication and remote control, preferably
WiFi or infrared mode.The present embodiment gives the work sheet of moral bodyguard TV remote controller pattern by taking the control of infrared red line as an example.
The intelligent remote control function carried on a large amount of smart mobile phones, can be arranged multiple remote control pattern, be equivalent to more
A remote controler.The present embodiment has chosen infrared control pattern remote control scheme common in business application, is selected in specific implementation
Moral bodyguard television mode carries out infrared-ray communication remote control.Exploitation can be saved using the intelligent remote control function carried on smart mobile phone
Time simultaneously produces remote terminal without redeveloping.Other than using having remote APP, can also self-developing it is suitable
Remote APP.
Other than the way of realization proposed, other remote controls and communication modes can also be flexibly used.
Claims (8)
1. a kind of intelligent distant control MOSFET power electronics alternating-current switch device, which is characterized in that described device includes logical operation
With remote circuit unit, flexible drive circuit unit, MOSFET power electronics alternating-current switch units and single line accessory power supply
Unit；The logical operation is connect and is controlled MOSFET electric power electricity by flexible drive circuit unit with remote circuit unit
Sub- alternating-current switch unit；The single line Auxiliary Power Units are respectively to logical operation and remote circuit unit and MOSFET electricity
Power electronic ac switch unit is powered；Described device utilizes the bidirectional conduction ability of mos field effect transistor
Constitute low-loss power electronics alternating-current switch；Using flexible drive circuit for eliminating or reduce switch spike；Using WiFi,
Zigbee or infrared ray means realize communication and remote control.
2. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 1, which is characterized in that institute
MOSFET power electronics alternating-current switch units are stated, are controlled for realizing the break-make on AC mains road, it is opened by power electronics exchange
Main body, overvoltage protection branch and Current Transmit is closed to constitute；Power electronics alternating-current switch main body and overvoltage protection branch circuit parallel connection
It connects later with Current Transmit；
The power electronics alternating-current switch main body is reversely gone here and there by two mos field effect transistor with model
Connection is formed by connecting, i.e. the first mos field effect transistor Q1With the second metal oxide semiconductor field-effect crystalline substance
Body pipe Q2Source electrode link together constitute S, two mos field effect transistor Q1And Q2Grid be connected to
G, two mos field effect transistor Q are constituted together1And Q2Share the same driving end, two field-effect crystalline substances
Body pipe Q1And Q2The first drain D of drain electrode1, the second drain D2It is connect with AC mains road；
The overvoltage protection branch route two-way Transient Suppression Diode TVS, resistance RSWith capacitance CSIt constitutes；Resistance RSWith capacitance CSAnd
One end is connected with two-way Transient Suppression Diode TVS after connection；Resistance RSWith capacitance CSThe other end after parallel connection connects power electronics
Second drain D of alternating-current switch main body2, the other end connection power electronics alternating-current switch master of two-way Transient Suppression Diode TVS
First drain D of body1, for protecting two mos field effect transistor；Overvoltage protection branch is needed as practical
It is designed, and opening and turn off due to voltage spikes and little as mos field effect transistor MOSFET
When, without installing the overvoltage protection branch of this three composition additional；
The Current Transmit takes electricity for current sample and electric energy, is provided simultaneously with two functions.
3. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 1, which is characterized in that institute
The function of stating logical operation and remote circuit unit is to receive external remote control instruction and by instruction by logical operation, and control
MOSFET power electronics alternating-current switch unit processed realizes the break-make control on AC mains road；After carrying out break-make control with it is outer
Portion carries out the communication report practical break-make situation of MOSFET power electronics alternating-current switch, passes through WiFi, Zigbee or infrared ray means
Realize communication and remote control；
The logical operation includes remote control signal receiver and decoder module, drive control output mould with remote circuit unit
Block, drive signal output module and switch state signal output module；Remote signal is input to remote control signal receiver and decoding mould
The input terminal of block；Remote control signal receiver connect the input terminal of drive signal output module with decoder module output end；Drive signal
The output of output module connects the input terminal of drive signal output module by logical operation；The output of drive signal output module
It is separately connected switch state signal output module and driving unit；Switch state signal output module is exported to remote terminal；
When remote signal inputs reception and is decoded as open signal ON high level, signal self-locking is carried out, which makes with driving
Energy signal carries out enabling logic operation, is exported into horizontal-drive signal to driving unit, opens control G_on outputs, while will turn off
G_off interlockings are controlled, MOSFET power electronics alternating-current switch units are open-minded, meanwhile, switch state signal is sent to remote control eventually
End, report exchange main circuit is opening state；
When remote signal OFF inputs receive and are decoded as open signal OFF, signal self-locking is carried out, the signal is enabled with driving
Signal carries out shutdown logical operation, is exported into horizontal-drive signal to driving unit, shutdown control G_off outputs, while will open
Control G_on interlockings, the shutdown of MOSFET power electronics alternating-current switch units；To shutdown control G_off high level outputs time into
Row control is equal to half ac cycle, and the period for such as exchanging main circuit is 20ms, then it is 10ms to control its duration, with drop
Switch state signal is sent to remote terminal by low system power and energy loss, and report exchange main circuit is off state.
4. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 1, which is characterized in that institute
It includes that driving unit enables circuit unit with driving to state flexible drive circuit unit；
The flexible drive circuit unit is opened extending with by way of the turn-off time, and metal oxide semiconductcor field effect is reduced
Transistor Q1, Q2 is answered to open and shutdown due to voltage spikes, protection mos field effect transistor Q1, Q2；
The flexible drive circuit unit utilizes the exchange variation characteristic of alternating current, instantaneous value meeting cyclically-varying to smaller value
With cross null character, implement shutdown in zero-crossing of alternating current or smaller alternating current and realize that metal oxide semiconductor field-effect is brilliant
The soft switching of body pipe improves the Electro Magnetic Compatibility of system while even eliminating shutdown due to voltage spikes to reduce；It is described soft
Property drive circuit unit opened and the turn-off time by increasing mos field effect transistor, reduction is opened and is closed
The Electro Magnetic Compatibility of system is improved while disconnected due to voltage spikes.
5. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 1, which is characterized in that institute
It states single line accessory power supply and is constituted by adopting electric unit, charhing unit, direct voltage output unit and energy-storage units；The charhing unit
Input terminal be to adopt electric unit, the output connection direct voltage output unit and energy-storage units of charhing unit, direct voltage output
Unit connects DC load, and suitable DC voltage is provided to DC load；Charhing unit charges to energy-storage units；
The DC load includes logical operation and remote circuit unit and the direct current needed for flexible drive circuit unit
Source；The energy-storage units are made of super capacitor or accumulator, preferably super capacitor.
6. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 5, which is characterized in that institute
It states to adopt electric unit and be divided into first and adopt electric unit and second and adopts electric unit；First, which adopts electric unit and second, adopts electric unit as complementary duty
Pattern will not work at the same time；First, which adopts electric unit, adopts the output-parallel of electric unit with second and connect；
MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnect when, first adopt electric unit work；MOSFET
Power electronics alternating-current switch unit be closed and AC mains road be closed when, second adopt electric unit work；First adopts electric unit parallel connection
On MOSFET power electronics alternating-current switch units, it is then only connected to firewire L and Current Transmit primary side and AC mains road
Between the intersection point M of load；When MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnects, first adopts electric list
Member accesses among entire AC mains road, to obtain energy, but must control flow through first adopt the size of current of electric unit with
It avoids opening by mistake logical AC mains road load；Second adopts electric unit connect with Current Transmit pair side, when MOSFET power electronics
Alternating-current switch unit be connected and AC mains road be connected when obtain energy；
MOSFET power electronics alternating-current switch units disconnect and AC mains road disconnect when, first adopt electric unit work；MOSFET
Power electronics alternating-current switch unit be closed and AC mains road be closed when, second adopt electric unit work.
7. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 3, which is characterized in that institute
It is after remote terminal transmission remote signal is remotely controlled signal input, to distant that logical operation, which is stated, with remote circuit workflow
Control signal is received and is decoded, and drive control output is carried out, and after carrying out logical operation with driving enable signal, drive defeated
Go out and send driving control signal to driving unit, realizes that opening for MOSFET power electronics alternating-current switch units is controlled with shutdown
System, and then realize the break-make control on AC mains road；Switch state signal is sent in real time simultaneously to remote terminal in real time to be led to
News.
8. a kind of intelligent distant control MOSFET power electronics alternating-current switch device according to claim 4, which is characterized in that institute
The control G_on that opens for the driving unit stated possesses respectively different input terminals from shutdown control G_off and mutually interlocks, defeated
Go out the both ends G, S that G, S each are attached to MOSFET power electronics alternating-current switch units；The flexible drive circuit unit while reality
Existing overcurrent protection function, current sample at the Current Transmit in MOSFET power electronics alternating-current switch by obtaining；It is described
Driving enable circuit unit and include that shutdown driving is enabled with two functions of overcurrent protection, and will shutdown driving enable EN_off with
Overcurrent protection PR is controlled respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898047.2A CN108736874B (en) | 2018-08-08 | 2018-08-08 | Intelligent remote control MOSFET power electronic alternating current switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810898047.2A CN108736874B (en) | 2018-08-08 | 2018-08-08 | Intelligent remote control MOSFET power electronic alternating current switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108736874A true CN108736874A (en) | 2018-11-02 |
| CN108736874B CN108736874B (en) | 2023-11-10 |
Family
ID=63942601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810898047.2A Active CN108736874B (en) | 2018-08-08 | 2018-08-08 | Intelligent remote control MOSFET power electronic alternating current switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108736874B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112104241A (en) * | 2020-09-16 | 2020-12-18 | 隆鑫通用动力股份有限公司 | Engine generator |
| CN112311215A (en) * | 2019-08-02 | 2021-02-02 | 台达电子企业管理（上海）有限公司 | Clamping circuit and power module |
| CN113964808A (en) * | 2021-12-22 | 2022-01-21 | 苏州浪潮智能科技有限公司 | Hot plug line input end spike suppression device |
| EP4064563A1 (en) * | 2021-03-24 | 2022-09-28 | Siemens Aktiengesellschaft | Electronic switch |
| EP4287509A1 (en) * | 2022-06-02 | 2023-12-06 | Goodrich Actuation Systems Limited | Solid state circuit breaker snubber |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013164783A (en) * | 2012-02-13 | 2013-08-22 | Nec Computertechno Ltd | Load balance circuit, power supply device and load balance control method |
| CN104333937A (en) * | 2014-08-14 | 2015-02-04 | 苏州东微半导体有限公司 | Control circuit of power MOSFET switching tube source electrode drive topological structure |
| CN105207450A (en) * | 2015-09-18 | 2015-12-30 | 天水电气传动研究所有限责任公司 | Novel high-power IGBT flexible driving and protecting circuit |
| CN106571391A (en) * | 2016-03-22 | 2017-04-19 | 廖慧仪 | Solid power semiconductor field effect transistor structure |
-
2018
- 2018-08-08 CN CN201810898047.2A patent/CN108736874B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013164783A (en) * | 2012-02-13 | 2013-08-22 | Nec Computertechno Ltd | Load balance circuit, power supply device and load balance control method |
| CN104333937A (en) * | 2014-08-14 | 2015-02-04 | 苏州东微半导体有限公司 | Control circuit of power MOSFET switching tube source electrode drive topological structure |
| CN105207450A (en) * | 2015-09-18 | 2015-12-30 | 天水电气传动研究所有限责任公司 | Novel high-power IGBT flexible driving and protecting circuit |
| CN106571391A (en) * | 2016-03-22 | 2017-04-19 | 廖慧仪 | Solid power semiconductor field effect transistor structure |
Non-Patent Citations (1)
| Title |
|---|
| 王旭光; 刘文江; 史玲: "《一种Buck-Boost模式的交流调压电路》", 《山东交通学院学报》, pages 1 - 3 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311215A (en) * | 2019-08-02 | 2021-02-02 | 台达电子企业管理（上海）有限公司 | Clamping circuit and power module |
| CN112311215B (en) * | 2019-08-02 | 2021-10-15 | 台达电子企业管理（上海）有限公司 | Clamping circuit and power module |
| US11336274B2 (en) | 2019-08-02 | 2022-05-17 | Delta Electronics (Shanghai) Co., Ltd | Clamp circuit and power module using the same |
| CN112104241A (en) * | 2020-09-16 | 2020-12-18 | 隆鑫通用动力股份有限公司 | Engine generator |
| CN112104241B (en) * | 2020-09-16 | 2022-07-12 | 隆鑫通用动力股份有限公司 | Engine generator |
| EP4064563A1 (en) * | 2021-03-24 | 2022-09-28 | Siemens Aktiengesellschaft | Electronic switch |
| CN113964808A (en) * | 2021-12-22 | 2022-01-21 | 苏州浪潮智能科技有限公司 | Hot plug line input end spike suppression device |
| EP4287509A1 (en) * | 2022-06-02 | 2023-12-06 | Goodrich Actuation Systems Limited | Solid state circuit breaker snubber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108736874B (en) | 2023-11-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108736874A (en) | A kind of intelligent distant control MOSFET power electronics alternating-current switch device | |
| CN202978738U (en) | Power converter | |
| CN107681636A (en) | A kind of overvoltage crowbar and Switching Power Supply | |
| CN108541123A (en) | A kind of single live wire power getting switch | |
| CN107257600A (en) | The switching device and detection circuit of a kind of compatible single live wire or zero live wire access | |
| CN105432006B (en) | Switch element driving power circuit | |
| CN204103532U (en) | A kind of two-way charger | |
| CN204887570U (en) | Single live wire switch of intelligence | |
| CN105162313B (en) | A kind of inverse-excitation type switch power-supply | |
| CN205004842U (en) | Electrical shutoff control device and power cord are led to to intelligence | |
| CN107196287A (en) | A kind of set composite and its control method for possessing DC power flow and fault control | |
| CN104811175A (en) | Low-power consumption single-firing line electronic switch | |
| CN106711922B (en) | Electrical shock protective device and electric power system | |
| CN208675197U (en) | A kind of intelligent distant control MOSFET power electronics alternating-current switch device | |
| CN207340249U (en) | Compatible with single firewire or the switching device and detection circuit of the access of zero firewire | |
| CN105848357A (en) | LED drive circuit capable of resisting electromagnetic interference | |
| CN202889180U (en) | AC (Alternating Current) and DC (Direct Current) input self-adaptive circuit | |
| CN104902631A (en) | Time-delay touch switch for intelligent household appliances | |
| CN206180887U (en) | Switch power supply circuit | |
| CN106209046A (en) | A kind of direct current controlled transient response disconnecting switch | |
| CN204481784U (en) | Low-power consumption single-fire-wire electronic switch | |
| CN203218943U (en) | Two-path charger | |
| CN204481782U (en) | Single live wire power getting switch | |
| CN103228085A (en) | Output current adjustable and controllable LED driver and driving method | |
| CN206807295U (en) | Two-way DC DC converters and charger |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |