CN207896884U - A kind of electronic switch power based on high-frequency switching technology design - Google Patents
A kind of electronic switch power based on high-frequency switching technology design Download PDFInfo
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- CN207896884U CN207896884U CN201820175883.3U CN201820175883U CN207896884U CN 207896884 U CN207896884 U CN 207896884U CN 201820175883 U CN201820175883 U CN 201820175883U CN 207896884 U CN207896884 U CN 207896884U
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Abstract
The utility model discloses a kind of electronic switch powers based on high-frequency switching technology design, it is provided with combined floodgate branch, control branch, accumulator group, alternating-current system, monitoring system and at least rectification circuit all the way, the alternating-current system connects rectification circuit, rectification circuit is connected by output circuit with combined floodgate branch, combined floodgate branch is connected with control branch, monitoring system respectively with rectification circuit, combined floodgate branch, control branch and alternating-current system are connected, the rectification circuit is connected with accumulator group, accumulator group is also connected with combined floodgate branch, it is in direct current that 380V AC powers can be converted, and carry out direct current supply for subsequent conditioning circuit, it is designed based on high frequency switch power technology, existing switch performance is good, export the features such as DC stabilization is reliable；And it can realize a variety of monitoring processing so that entire power supply processing safely and steadily runs state, and providing safe and reliable direct current electricity consumption for subsequent conditioning circuit provides technical guarantee.
Description
Technical field
The utility model is related to the fields such as electronic technology, electronic power supply technology, high frequency switch power technology, specifically,
It is a kind of electronic switch power designed based on high-frequency switching technology.
Background technology
Electronic technology is the principle according to electronics, designs and manufacture the circuit of certain specific function with electronic component
With the science of solving practical problems, including information electronic technology and power electronic technique Liang great branches.Information electronic technology includes
Analog （Simulation）Electronic technology and Digital（Number）Electronic technology.Electronic technology is handled electronic signal
Technology, the mode of processing mainly has：Generation, amplification, filtering, the conversion of signal.
Electronic technology is the emerging technology that earlier 1800s start to grow up to earlier 1900s, and twentieth century develops most
Rapidly, most widely used, become an important symbol of modern science technology development.In 18 end of the centurys and earlier 1800s
In this period, due to the needs of production development, the research work in terms of electromagnet phenomenon develops quickly, French science in 1785
Family's coulomb obtains the Coulomb's law of electric current by testing.1895, Dutch physicist Heng get Li Ke found a place for Lorentz hypothesis
Electronics presence.1897, English physicist Thomson（J.J.Thompson）Electronics is had found with experiment.1904, English
Compatriots J.A.Fleming has invented simplest diode (diode or valve), for detecting faint radio signal.
1906, L.D.Forest set up third electrode in the diode（Grid, grid）It has invented with amplification
Triode, this is most important milestone in electronics early history.Several researchers of AT＆T Labs of the U.S. in 1948
Invention transistor.First sample of integrated circuit in 1958 is seen in generation.The appearance and application of integrated circuit, indicate electricity
Sub- technology has developed to a new stage.
Electronic technology research be the circuit that electronic device and its electronic device are constituted application.Semiconductor devices is to constitute
Various components discrete, integrated electronic circuit is most basic.With the rapid development of electronic technology, various semiconductor devices
It emerges one after another.The developing direction of modern power electronics technology is from the conventional electric power electronics based on low-frequency technology process problem
It learns, changes to the modern power electronic direction based on high frequency technique process problem.Power electronic technique originates in 50 years
The silicon rectification device of generation last early sixties, development successively experienced rectifier epoch, inverter epoch and frequency converter epoch,
And promote application of the power electronic technique in many frontiers.That the eighties latter stage and the nineties initial stage grow up,
Using power MOSFET and IGBT as representative, integrate high frequency, the power semiconductor multiple device of high pressure and high current, show
Conventional electric power electronic technology comes into the modern power electronic epoch.
Operation power in existing transformation and distribution system is DC220V, and the silicon rectifier of reason installing compensation capacitor carries
For.When electric system is broken down, rectifier voltage fluctuation can be caused even to power off.In practical applications, due to capacitance
The reasons such as device quality have unreliability, it cannot be guaranteed that relay and tripping using capacitor energy storage come compensating direct current voltage
Coil action message is easy to constitute accident potential.
Utility model content
The purpose of this utility model is to provide a kind of electronic switch powers based on high-frequency switching technology design, replace existing
There is the operation power of transformation and distribution system, 380V AC powers can be converted into direct current, and direct current confession is carried out for subsequent conditioning circuit
The features such as electricity is designed based on high frequency switch power technology, and existing switch performance is good, output DC stabilization is reliable；And energy
Enough realize a variety of monitoring processing so that entire power supply processing safely and steadily runs state, is provided securely and reliably for subsequent conditioning circuit
Direct current electricity consumption provide technical guarantee；Carry out DC-DC protection circuit setting when, using field-effect tube, diode, transformer and
Filter circuit realizes DC-DC transformation, while realizing DC converting, additionally it is possible to the stability of safeguards system work.
The utility model is achieved through the following technical solutions：A kind of electronic cutting based on high-frequency switching technology design is powered-down
Source, including rectification circuit and the alternating-current system, monitoring system and the power supply unit that are connected with rectification circuit, in the rectification
Preposing signal process circuit, master control system and DC-DC conversion circuit, alternating-current system and preposing signal process circuit are provided in circuit
It is connected, preposing signal process circuit is connected with DC-DC conversion circuit, and DC-DC conversion circuit is connected with master control system, master control
System processed connects power supply unit；Field-effect tube VT1, field-effect tube VT2, transformer T are provided in the DC-DC conversion circuit
And filter circuit, the source electrode of field-effect tube VT1 and the source electrode of field-effect tube VT2 are separately connected wherein the one of transformer T primary sides
End, the drain electrode of field-effect tube VT1 are connected by diode with the drain electrode of field-effect tube VT2, and the source electrode of field-effect tube VT2 passes through
Diode is connected with the source electrode of field-effect tube VT1, and the drain electrode of field-effect tube VT1 and the drain electrode of field-effect tube VT2 are as DC-DC
The input terminal of circuit is protected to connect preposing signal process circuit, the grid of field-effect tube VT1 and the grid of field-effect tube VT2 are as DC-
DC protects the control terminal of circuit to connect master control system；The secondary end of the transformer T all passes through diode and filter circuit
One end of input terminal is connected, and the other end of the input terminal of filter circuit is connected with wherein one end of the secondary end of transformer T；
The output end of filter circuit connects master control system.
Further is that the utility model is better achieved, and especially uses following setting structures：In the master control system
It is inside provided with main control circuit, protection circuit, sampling feedback circuit, smoothed filter circuit, before the alternating-current system connection
Processing circuit is set, the output end of filter circuit is connected with smoothed filter circuit, and smoothed filter circuit passes through output circuit and confession
Electric equipment is connected；The output end of smoothed filter circuit is connected with sampling feedback circuit, and sampling feedback circuit connects main control
Circuit, main control circuit with protection circuit be connected, and main control circuit respectively with the grid and field-effect tube of field-effect tube VT1
The grid of VT2 is connected.The drain electrode of preferred field-effect tube VT2 passes through the drain electrode of diode D1 connection field-effect tube VT1, and two
The drain electrode of the anode connection field-effect tube VT2 of pole pipe D1；The source electrode of field-effect tube VT2 passes through diode D2 connection field-effect tube
The source electrode of VT1, and the source electrode of the anode connection field-effect tube VT2 of diode D2；Filter circuit use by capacitance C1, capacitance C2 and
The both ends of the LC pi type filters that inductance L1 is formed, the secondary end of transformer T are connected by diode D3 with diode D4 respectively
The connects end altogether of the inductance and capacitance of LC pi type filter input terminals, wherein one end connection LC π types filtering of the secondary end of transformer T
The capacitance of device input terminal and the connects end altogether of capacitance；Preferred transformer T uses band magnetic core high frequency transformer.
Further is that the utility model is better achieved, and especially uses following setting structures：In the power supply unit
Combined floodgate branch, depressurizing system, control branch and accumulator group, output circuit is provided with combined floodgate branch and accumulator group to be connected
Connect, combined floodgate branch by depressurizing system with control branch be connected, monitoring system respectively with rectification circuit, combined floodgate branch, control
Branch and alternating-current system are connected, and the smoothed filter circuit is connected with accumulator group, and accumulator group is also divided with combined floodgate
Road is connected.
Further is that the utility model is better achieved, and especially uses following setting structures：It is set in the monitoring system
Be equipped with distribution monitor circuit, main monitoring circuit and insulating monitoring circuit, distribution monitor circuit respectively with alternating-current system, main prison
Control circuit, combined floodgate branch and control branch are connected, and main monitoring circuit is connected with rectification circuit and insulating monitoring circuit respectively,
Insulating monitoring circuit is connected with control branch and combined floodgate branch.
Further is that the utility model is better achieved, and especially uses following setting structures：In the preposition processing electricity
Lightning protection filter circuit, ac rectifier and passive PFC are provided in road, the alternating-current system connects lightning protection filtered electrical
Road, lightning protection filter circuit connect ac rectifier, ac rectifier connected with passive PFC, passive PFC connections field-effect tube
The drain electrode of the drain electrode and field-effect tube VT2 of VT1.
Further is that the utility model is better achieved, and especially uses following setting structures：The protection circuit includes
Overvoltage crowbar, current foldback circuit, short-circuit protection circuit and the thermal-shutdown circuit being connected respectively with main control circuit.
Further is that the utility model is better achieved, and especially uses following setting structures：In the main control circuit
On be also associated with communication interface circuit.
Further is that the utility model is better achieved, and especially uses following setting structures：The output circuit is two
Pole pipe, and the cathode of diode is connected with combined floodgate branch and accumulator group.
Further is that the utility model is better achieved, and especially uses following setting structures：The accumulator group uses
Lithium battery.
Further is that the utility model is better achieved, and especially uses following setting structures：It is 3 in the rectification circuit
Road, and alternating-current system is all connected with No. three rectification circuits, No. three rectification circuits all pass through output circuit and combined floodgate branch
It is connected, No. three rectification circuits are all connected with accumulator group.
The utility model compared with prior art, has the following advantages and advantageous effect：
It is in direct current that the utility model, which can convert 380V AC powers, and carries out direct current supply, base for subsequent conditioning circuit
It is designed in high frequency switch power technology, existing switch performance is good, exports the features such as DC stabilization is reliable；And it can realize
A variety of monitoring processing so that entire power supply processing safely and steadily runs state, and safe and reliable direct current is provided for subsequent conditioning circuit
Electricity consumption provides technical guarantee；When carrying out DC-DC protection circuit settings, field-effect tube, diode, transformer and filtered electrical are utilized
DC-DC transformation is realized on road, while realizing DC converting, additionally it is possible to the stability of safeguards system work.
For the utility model in design, the monitoring circuit acceptor of various functions monitors the management and control of circuit, Neng Gouji
The monitoring information that the monitoring circuit of various functions is acquired is sent in main monitoring circuit in communication line and carries out unified management point
It analyses and carries out corresponding management control using prefabricated control management strategy so that entire power supply is in safety and stability, efficiently section
The operating status of energy.
The utility model can be realized can also realize outside the basis monitoring such as exchange monitoring, direct-current supervision, switching value monitoring
The functions such as insulating monitoring, battery inspection.
Description of the drawings
Fig. 1 is the utility model principle block diagram.
Fig. 2 is rectification circuit functional block diagram described in the utility model.
Fig. 3 is DC-DC conversion circuit figure described in the utility model.
Specific implementation mode
The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not
It is limited to this.
It is worth noting that, in the practical application of the utility model, it is inevitably applied to software program, but Shen
Ask someone it is hereby stated that, the software program which is applied in the specific implementation is all the prior art, in this application, no
It is related to the change and protection of software program, only the protection to the hardware structure designed for realization goal of the invention.
Embodiment 1：
A kind of electronic switch power based on high-frequency switching technology design, it is in direct current that can convert 380V AC powers
Electricity, and direct current supply is carried out for subsequent conditioning circuit, it is designed based on high frequency switch power technology, existing switch performance is good, exports
The features such as DC stabilization is reliable；And it can realize a variety of monitoring processing so that entire power supply processing safely and steadily runs shape
State provides safe and reliable direct current electricity consumption for subsequent conditioning circuit and provides technical guarantee；When carrying out DC-DC protection circuit settings, profit
DC-DC transformation is realized with field-effect tube, diode, transformer and filter circuit, while realizing DC converting, additionally it is possible to protect
The stability of barrier system work especially uses following setting structures as shown in Figure 1, Figure 2, Figure 3 shows：Including rectification circuit and with it is whole
Alternating-current system, monitoring system and the power supply unit that current circuit is connected, are provided with preposition processing in the rectification circuit
Circuit, master control system and DC-DC conversion circuit, alternating-current system are connected with preposing signal process circuit, preposing signal process circuit
It is connected with DC-DC conversion circuit, DC-DC conversion circuit is connected with master control system, and master control system connects power supply unit；
Field-effect tube VT1, field-effect tube VT2, transformer T and filter circuit, field-effect tube are provided in the DC-DC conversion circuit
The source electrode of VT1 and the source electrode of field-effect tube VT2 are separately connected wherein one end of transformer T primary sides, the drain electrode of field-effect tube VT1
It is connected with the drain electrode of field-effect tube VT2 by diode, the source electrode of field-effect tube VT2 passes through diode and field-effect tube VT1
Source electrode be connected, the input terminal company of the drain electrode of field-effect tube VT1 and the drain electrode of field-effect tube VT2 as DC-DC protection circuits
Connect the control terminal that preposing signal process circuit, the grid of field-effect tube VT1 and the grid of field-effect tube VT2 protect circuit as DC-DC
Connect master control system；The secondary end of the transformer T is all connected by diode with one end of the input terminal of filter circuit,
The other end of the input terminal of filter circuit is connected with wherein one end of the secondary end of transformer T；The output end of filter circuit connects
Connect master control system.
The drain electrode of preferred field-effect tube VT2 to drain through diode D1 connection field-effect tube VT1, and diode D1
The drain electrode of anode connection field-effect tube VT2；The source electrode of field-effect tube VT2 by the source electrode of diode D2 connection field-effect tube VT1,
And the source electrode of the anode connection field-effect tube VT2 of diode D2；Filter circuit is used by capacitance C1, capacitance C2 and inductance L1 institutes group
At LC pi type filters, the both ends of the secondary end of transformer T connect the filtering of LC π types by diode D3 with diode D4 respectively
The inductance of device input terminal and the connects end altogether of capacitance, wherein one end connection LC pi type filter input terminals of the secondary end of transformer T
The connects end altogether of capacitance and capacitance；Preferred transformer T uses band magnetic core high frequency transformer.
One fixed DC voltage conversion is the DC voltage that can be changed by DC-DC translation circuits, and this control, which has, to be added
Fast steady, quick response performance, while the effect for saving electric energy can be received.
Transformer T plays isolation and transformation, is arranged one by inductance L 1 in output end（Afterflow inductance）, capacitance
The LC pi type filters of C1 and capacitance C2 compositions, play the storage and transmission of energy, primary without setting reset around
The conducting of group, diode D1, diode D2 limits two adjustment pipes（Field-effect tube VT1 and field-effect tube VT2）Institute when shutdown
The voltage born.A rectifier diode D3 and a sustained diode 4 is arranged in output loop（D3, D4 preferred recovery time
Fast rectifying tube）.The preferred large bulk capacitances of capacitance C2, advantageously reduce ripple voltage in this way.DC-DC conversion circuit of the present invention
Using double tube positive exciting formula DC/DC converters, work characteristics is as follows：
1, under any operating condition, to make two switching tubes（Adjustment pipe, field-effect tube VT1 and field-effect tube VT2）Institute
The voltage born does not exceed input voltage, the forward voltage drop of diode D1 and diode D2, diode D1 and diode D2
It is preferred that restoring to manage using fast.
2, compared with single-ended forward type DC/DC converters, without reset circuit, this is conducive to simplify circuit and transformer for it
Design；Lower pressure voltage may be selected in its power device；Its power grade also can be very big.
3, the working condition of two switching tubes is consistent, can be in on-state or off-state simultaneously.
Embodiment 2：
The present embodiment is further optimized based on the above embodiments, further new for this practicality is better achieved
Type especially uses following setting structures as shown in Figure 1, Figure 2, Figure 3 shows：Be provided in the master control system main control circuit,
Circuit, sampling feedback circuit, smoothed filter circuit, the alternating-current system is protected to connect preposing signal process circuit, filter circuit
Output end be connected with smoothed filter circuit, smoothed filter circuit is connected by output circuit with power supply unit；Smooth filter
The output end of wave circuit is connected with sampling feedback circuit, and sampling feedback circuit connects main control circuit, main control circuit and guarantor
Protection circuit is connected, and main control circuit is connected with the grid of the grid of field-effect tube VT1 and field-effect tube VT2 respectively.
The sampling feedback circuit carries out output to DC-DC conversion circuit for main control circuit and adjusts collection voltages or electricity
Flow signal sample so that the voltage or current signal sample that main control circuit can acquire adjust output duty cycle in real time, to make
The output for obtaining DC-DC protection circuits is steady.
The smoothed filter circuit since alternating current is become Rectified alternating current by ac rectifier, but wherein contains big
The alternating component of amount（Referred to as ripple voltage）, in order to obtain smooth DC voltage, preferably exported in DC-DC conversion circuit
Capacitance is set after end（Smoothed filter circuit）, processing is filtered out for realizing ripple voltage.
Embodiment 3：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：Be provided in the power supply unit combined floodgate branch,
Depressurizing system, control branch and accumulator group, output circuit are connected with combined floodgate branch and accumulator group, and combined floodgate branch passes through drop
Pressure system is connected with control branch, monitoring system respectively with rectification circuit, combined floodgate branch, control branch and alternating-current system
It is connected, the smoothed filter circuit is connected with accumulator group, and accumulator group is also connected with combined floodgate branch.
In design in use, the combined floodgate branch, is powered the closing bus bar in it by rectification circuit, with change
Combined floodgate branch in distribution system is connected, branch offer in order to control after the direct current in combined floodgate branch is depressured by depressurizing system
Operating voltage；The control branch is connected with the control branch in transformation and distribution system, and closing bus bar also branch in order to control
Control bus is powered；When work, two-way 380V alternating currents switch over operation by alternating-current system, switch out wherein all the way
380V alternating currents are powered for rectification circuit, and rectification circuit is by the three-phase alternating current of input（380V）Direct current is converted to, is given
Battery charging, while being also that the closing bus bar that does not have of combined floodgate branch is powered, the closing bus bar also control in branch in order to control
Bussed supply processed, combined floodgate branch and control branch export combined floodgate branch and control branch in control transformation and distribution system respectively, real
Show operation power uninterrupted power supply and secondary circuit action message, ensure that the safe and stable operation of transformation and distribution system.
Embodiment 4：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：Distribution monitor electricity is provided in the monitoring system
Road, main monitoring circuit and insulating monitoring circuit, distribution monitor circuit divide with alternating-current system, main monitoring circuit, combined floodgate respectively
Road and control branch are connected, and main monitoring circuit is connected with rectification circuit and insulating monitoring circuit respectively, insulating monitoring circuit
It is connected with control branch and combined floodgate branch.
In design in use, distribution monitor circuit, main monitoring circuit and the insulating monitoring circuit energy being arranged in monitoring system
Combined floodgate branch can also be realized outside the basis monitoring such as enough realization exchange monitoring, direct-current supervision, switching value monitoring and controls branch
The functions such as insulating monitoring and battery inspection.
Embodiment 5：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：It is provided with lightning protection in the preposing signal process circuit
Filter circuit, ac rectifier and passive PFC, the alternating-current system connect lightning protection filter circuit, lightning protection filter circuit
Connect ac rectifier, ac rectifier connected with passive PFC, the drain electrode and field-effect of passive PFC connection field-effect tube VT1
The drain electrode of pipe VT2.
PFC（ Pow er Factor Correct ion, PFC）Refer to effective power and total power consumption（
Apparent energy）Between relationship, that is, effective power divided by total power consumption（Apparent energy）Ratio.Passive PFC is
Refer to the correcting circuit without using some active devices such as transistor composition, power factor and electromagnetic interference is made all to be improved.
Embodiment 6：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：The protection circuit includes electric with main control respectively
Overvoltage crowbar, current foldback circuit, short-circuit protection circuit and the thermal-shutdown circuit that road is connected；The overvoltage protection electricity
When road can realize that output voltage is excessively high, can be automatically carry out overvoltage protection, avoid due to output voltage is excessively high and to electricity consumption
The case where equipment damages；The power conversion circuit mainly protects great power conversion circuit device, in each of unsteady flow
A period, if by electric current be more than the electric current that bears of device, power conversion circuit may turn off power device, be protected with reaching
Protect the purpose of power device；The short-circuit protection circuit, when output short-circuit, short-circuit protection circuit draws output voltage in moment
It is as low as zero, limiting short-circuit current is under current-limiting points, short-circuit protection circuit output power very little at this time, to reach protection module
Purpose；Thermal-shutdown circuit mainly protects great power conversion circuit device, the junction temperature and current overload ability of these devices have
Safe limit value, in the case of normal work, there are enough surpluses for system design, but under some specific conditions, such as environment temperature
It spends when high, wind turbine stalling, it, will automatic shutdown guarantor when thermal-shutdown circuit detects radiator temperature more than certain value
Shield, when temperature is reduced to the temperature value of normal work, electronic switch power is again just automatic starts.
Embodiment 7：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：Communication is also associated on the main control circuit
Interface circuit, set communication interface circuit it can be connected with other management equipment respectively.
Embodiment 8：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：The output circuit is diode, and diode
Cathode is connected with combined floodgate branch and accumulator group.
Embodiment 9：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：The accumulator group uses lithium battery.
Embodiment 10：
The present embodiment is to advanced optimize based on any of the above embodiments, and further is that this reality is better achieved
With novel, as shown in Figure 1, Figure 2, Figure 3 shows, following setting structures are especially used：It is 3 tunnels, and AC distribution in the rectification circuit
System is all connected with No. three rectification circuits, and No. three rectification circuits are all connected by output circuit with combined floodgate branch, and three tunnels are whole
Current circuit is all connected with accumulator group；When in use, No. three rectification circuits, and the output of No. three rectification circuits are preferably provided with
All it is combined floodgate branch feeding by output circuit, while is also that accumulator group charges.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model
System, any simple modification made by the above technical examples according to the technical essence of the present invention, equivalent variations, each falls within
Within the scope of protection of the utility model.
Claims (10)
1. a kind of electronic switch power based on high-frequency switching technology design, it is characterised in that：Including rectification circuit and and rectification
Alternating-current system, monitoring system and the power supply unit that circuit is connected are provided with preposition processing electricity in the rectification circuit
Road, master control system and DC-DC conversion circuit, alternating-current system are connected with preposing signal process circuit, preposing signal process circuit with
DC-DC conversion circuit is connected, and DC-DC conversion circuit is connected with master control system, and master control system connects power supply unit；
Field-effect tube VT1, field-effect tube VT2, transformer T and filter circuit, field-effect tube are provided in the DC-DC conversion circuit
The source electrode of VT1 and the source electrode of field-effect tube VT2 are separately connected wherein one end of transformer T primary sides, the drain electrode of field-effect tube VT1
It is connected with the drain electrode of field-effect tube VT2 by diode, the source electrode of field-effect tube VT2 passes through diode and field-effect tube VT1
Source electrode be connected, the input terminal company of the drain electrode of field-effect tube VT1 and the drain electrode of field-effect tube VT2 as DC-DC protection circuits
Connect the control terminal that preposing signal process circuit, the grid of field-effect tube VT1 and the grid of field-effect tube VT2 protect circuit as DC-DC
Connect master control system；The secondary end of the transformer T is all connected by diode with one end of the input terminal of filter circuit,
The other end of the input terminal of filter circuit is connected with wherein one end of the secondary end of transformer T；The output end of filter circuit connects
Connect master control system.
2. a kind of electronic switch power based on high-frequency switching technology design according to claim 1, it is characterised in that：
Main control circuit, protection circuit, sampling feedback circuit, smoothed filter circuit, the exchange are provided in the master control system
Distribution system connects preposing signal process circuit, and the output end of filter circuit is connected with smoothed filter circuit, and smoothed filter circuit is logical
Output circuit is crossed with power supply unit to be connected；The output end of smoothed filter circuit is connected with sampling feedback circuit, sampling feedback
Circuit connects main control circuit, and main control circuit is connected with protection circuit, and main control circuit is respectively with field-effect tube VT1's
Grid is connected with the grid of field-effect tube VT2.
3. a kind of electronic switch power based on high-frequency switching technology design according to claim 2, it is characterised in that：
Be provided with combined floodgate branch, depressurizing system, control branch and accumulator group in the power supply unit, output circuit and combined floodgate branch and
Accumulator group is connected, combined floodgate branch by depressurizing system with control branch be connected, monitoring system respectively with rectification circuit, close
Lock branch, control branch and alternating-current system are connected, and the smoothed filter circuit is connected with accumulator group, accumulator group
Also it is connected with combined floodgate branch.
4. a kind of electronic switch power based on high-frequency switching technology design according to claim 3, it is characterised in that：Institute
State and be provided with distribution monitor circuit, main monitoring circuit and insulating monitoring circuit in monitoring system, distribution monitor circuit respectively with friendship
Stream distribution system, main monitoring circuit, combined floodgate branch and control branch be connected, main monitoring circuit respectively with rectification circuit and insulation
Observation circuit is connected, and insulating monitoring circuit is connected with control branch and combined floodgate branch.
5. special according to a kind of electronic switch power based on high-frequency switching technology design of claim 3 ~ 4 any one of them
Sign is：Lightning protection filter circuit, ac rectifier and passive PFC, the exchange are provided in the preposing signal process circuit
Distribution system connects lightning protection filter circuit, and lightning protection filter circuit connects ac rectifier, ac rectifier connected with passive
PFC, the drain electrode of the drain electrode and field-effect tube VT2 of passive PFC connection field-effect tube VT1.
6. a kind of electronic switch power based on high-frequency switching technology design according to claim 3 or 4, feature exist
In：The protection circuit includes the overvoltage crowbar, current foldback circuit, short-circuit protection being connected respectively with main control circuit
Circuit and thermal-shutdown circuit.
7. a kind of electronic switch power based on high-frequency switching technology design according to claim 4, it is characterised in that：
It is also associated with communication interface circuit on the main control circuit.
8. a kind of electronic switch power based on high-frequency switching technology design according to claim 2 or 3, feature exist
In：The output circuit is diode, and the cathode of diode is connected with combined floodgate branch and accumulator group.
9. a kind of electronic switch power based on high-frequency switching technology design according to claim 3 or 4, feature exist
In：The accumulator group uses lithium battery.
10. special according to a kind of electronic switch power based on high-frequency switching technology design of claim 3 ~ 4 any one of them
Sign is：It is 3 tunnels in the rectification circuit, and alternating-current system is all connected with No. three rectification circuits, No. three rectification circuits
All it is connected with combined floodgate branch by output circuit, No. three rectification circuits are all connected with accumulator group.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820175883.3U CN207896884U (en) | 2018-02-01 | 2018-02-01 | A kind of electronic switch power based on high-frequency switching technology design |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820175883.3U CN207896884U (en) | 2018-02-01 | 2018-02-01 | A kind of electronic switch power based on high-frequency switching technology design |
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| CN207896884U true CN207896884U (en) | 2018-09-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023491A (en) * | 2018-02-01 | 2018-05-11 | 成都爱特联科技有限公司 | A kind of electronic switch power based on high-frequency switching technology design |
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2018
- 2018-02-01 CN CN201820175883.3U patent/CN207896884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108023491A (en) * | 2018-02-01 | 2018-05-11 | 成都爱特联科技有限公司 | A kind of electronic switch power based on high-frequency switching technology design |
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