CN208424216U - A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge - Google Patents
A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge Download PDFInfo
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- CN208424216U CN208424216U CN201621382529.5U CN201621382529U CN208424216U CN 208424216 U CN208424216 U CN 208424216U CN 201621382529 U CN201621382529 U CN 201621382529U CN 208424216 U CN208424216 U CN 208424216U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model discloses a kind of intelligent sine voltage conversion circuits based on PFC normal shock full-bridge comprising has: input unit；PFC boost unit；Isolated form two-transistor forward converter includes first switch tube, second switch, the first freewheeling diode, the second freewheeling diode, the second rectifier diode, transformer, filter inductance and the first electrolytic capacitor；Inversion reversed phase unit, it is connected to the output end of isolated form two-transistor forward converter, alternating current is exported after carrying out inversion conversion for the output voltage to isolated form two-transistor forward converter, the output end of the inversion reversed phase unit is connected to the front end of the first filter inductance, the rear end of first filter inductance connects load, first filter inductance is used to filter out the high-frequency impulse of the alternating current, and provides power frequency sinusoidal ac for load.The utility model can be improved PF value and improve output voltage quality.
Description
Technical field
The utility model relates to voltage conversion circuit more particularly to a kind of intelligent sine waves based on PFC normal shock full-bridge
Voltage conversion circuit.
Background technique
In the prior art, it is otherwise known as insert row of travelling by the intelligent boost-buck conversion equipment that AC turns AC, it is sinusoidal in the device
Wave voltage conversion circuit is its Key Circuit, is a kind of circuit for being able to achieve AC-AC transformation, can be realized in AC-AC transformation
The function of buck and burning voltage and frequency.However just most of meaningful formula equipment Market is non-isolation type to current AC-AC
Topological circuit, and PF value is low, output voltage quality is low, security reliability is poor.In practical application, due to being deposited in voltage conversion process
In switching at high speed for switching tube, so that the outlet side of circuit can have certain high-frequency pulse signal, and then output voltage is influenced
Quality, thus be difficult to meet conversion requirements.
Utility model content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, providing one kind can be improved voltage
The PF value of conversion equipment can be improved output voltage quality, and can filter out the high-frequency impulse of outlet side, and then provide for load
The sine voltage conversion circuit of high-quality power frequency sinusoidal ac.
In order to solve the above technical problems, the utility model adopts the following technical solution.
A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge comprising have: an input unit is used
In output DC voltage；One PFC boost unit, is connected to the output end of input unit, for the output voltage to input unit
Carry out boost conversion；One isolated form two-transistor forward converter includes first switch tube, second switch, two pole of the first afterflow
Pipe, the second freewheeling diode, the second rectifier diode, transformer, the second filter inductance and the first electrolytic capacitor, described first opens
The drain electrode for closing pipe is connected to the output end of PFC boost unit, and the source electrode of the first switch tube is connected to transformer primary winding
First end, the second end of the transformer primary winding is connected to the drain electrode of second switch, the source of the second switch
With connecing front end, the grid of the grid of the first switch tube and second switch is for accessing identical pwm signal for pole, and described the
The cathode of one freewheeling diode is connected to the drain electrode of first switch tube, and the anode of first freewheeling diode is connected to transformer
The second end of primary side winding, the cathode of second freewheeling diode are connected to the first end of transformer primary winding, and described
With connecing front end, the first end of the transformer secondary winding is connected to the sun of the second rectifier diode to the anode of two freewheeling diodes
Pole, the second termination back-end of the transformer secondary winding, the cathode of second rectifier diode is connected to the second filtering
The front end of inductance, the rear end of second filter inductance connect the anode of the first electrolytic capacitor, and first electrolytic capacitor is born
Pole connection rear end, output end of the rear end of second filter inductance as isolated form two-transistor forward converter；One inversion is fallen
Phase element, is connected to the output end of isolated form two-transistor forward converter, the inversion reversed phase unit for it is two-tube to isolated form just
The output voltage of exciting converter exports alternating current after carrying out inversion conversion, and the output end of the inversion reversed phase unit is connected with first
The front end of filter inductance, the rear end of first filter inductance connect load, and first filter inductance is for filtering out the friendship
The high-frequency impulse of galvanic electricity, and power frequency sinusoidal ac is provided for load.
Preferably, the PFC boost unit includes boost inductance, third switching tube, the first rectifier diode and second
Electrolytic capacitor, the front end of the boost inductance are connected to the output end of input unit, and the rear end of the boost inductance is connected to
The drain electrode of three switching tubes, with connecing front end, the grid of the third switching tube is for accessing all the way for the source electrode of the third switching tube
Pwm control signal, the anode of drain electrode the first rectifier diode of connection of the third switching tube, first rectifier diode
Output end of the cathode as PFC boost unit, and the cathode of first rectifier diode connects the anode of the second electrolytic capacitor, the
The cathode of two electrolytic capacitors is with connecing front end.
Preferably, the PFC boost unit further includes having the first driving resistance, the second driving resistance and driving diode,
The grid of the third switching tube is connected to the anode of driving diode, and the first driving resistor coupled in parallel is in driving diode
Both ends, the cathode of the driving diode pass through the second driving for accessing pwm control signal, the anode of the driving diode
Resistance is with being connected to front end.
Preferably, the isolated form two-transistor forward converter further includes having a third rectifier diode, the third rectification
The cathode of diode is connected to the first end of transformer secondary winding, and the anode of the third rectifier diode is connected to transformer
The second end of vice-side winding.
Preferably, further include having a MCU control unit, the grid of the first switch tube, the grid of second switch and
The grid of third switching tube is connected to MCU control unit, and the MCU control unit is for distinguishing output pwm signal to the
One switching tube, second switch and third switching tube, to control first switch tube, second switch and third switching tube on-off shape
State.
Preferably, the MCU control unit includes single-chip computer and its peripheral circuit.
It preferably, further include having an AC sampling unit, the AC sampling unit is connected to the input terminal of input unit
Between MCU control unit, the AC sampling unit is used to acquire the voltage of input unit exchange side and feeds back to MCU control
Unit.
Preferably, the AC sampling unit includes amplifier, and two input terminals of the amplifier pass through current limliting electricity respectively
The input terminal of input unit is hindered and is connected to, the output end of the amplifier is connected to MCU control unit.
Preferably, it is connected with the first sampling resistor between the source electrode and front end ground of the third switching tube, the third is opened
The source electrode for closing pipe is connected to MCU control unit, and MCU control unit is enabled to acquire third switching tube by first sampling resistor
The electric signal of source electrode.
It preferably, further include having a D/C voltage sampling unit, the D/C voltage sampling unit includes be sequentially connected in series
The front end of two sampling resistors and third sampling resistor, second sampling resistor is connected to the rear end of the second filter inductance, described
The rear end of third sampling resistor is connected to MCU control unit, enables MCU by second sampling resistor and third sampling resistor
Control unit acquires the electric signal of the second filter inductance rear end.
In intelligent sine voltage conversion circuit disclosed by the utility model based on PFC normal shock full-bridge, input is utilized
Output ripple DC voltage after unit is rectified and filtered to network voltage, later using PFC boost unit to pulsating direct current
Voltage carries out boosting processing, under the action of isolated form two-transistor forward converter, realizes the isolation transmission of voltage, can effectively mention
The PF value of high step-up/down conversion equipment, while output voltage quality is also improved, so that voltage conversion process more safely may be used
It leans on.On this basis, the utility model is provided with the first filter inductance in the output end of inversion reversed phase unit, utilizes the first filtering
Inductance can filter out the high-frequency impulse of the alternating current, so that load can obtain good power frequency sinusoidal ac, and then improve
Output voltage quality, to meet power demands.
Detailed description of the invention
Fig. 1 is the circuit diagram of sine voltage conversion circuit.
Fig. 2 is the circuit diagram of AC sampling unit in the preferred embodiment in the utility model.
Fig. 3 is the circuit diagram of MCU control unit in the preferred embodiment in the utility model.
Specific embodiment
The utility model is described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a kind of intelligent sine voltage conversion circuits based on PFC normal shock full-bridge, in conjunction with Fig. 1
To shown in Fig. 3 comprising have:
One input unit 10, for exporting DC voltage；
One PFC boost unit 20, is connected to the output end of input unit 10, for the output voltage to input unit 10 into
Row boost conversion；
One isolated form two-transistor forward converter 30 includes first switch tube Q6, second switch Q7, two pole of the first afterflow
Pipe D3, the second sustained diode 2, the second rectifier diode D5, transformer T1, filter inductance L3 and the first electrolytic capacitor C3, institute
The drain electrode for stating first switch tube Q6 is connected to the output end of PFC boost unit 20, and the source electrode of the first switch tube Q6 is connected to
The first end of transformer T1 primary winding, the second end of the transformer T1 primary winding are connected to the leakage of second switch Q7
Pole, the source electrode of the second switch Q7 with connecing front end, the grid of the first switch tube Q6 and the grid of second switch Q7
For accessing identical pwm signal, the cathode of first sustained diode 3 is connected to the drain electrode of first switch tube Q6, described
The anode of first sustained diode 3 is connected to the second end of transformer T1 primary winding, the yin of second sustained diode 2
Pole is connected to the first end of transformer T1 primary winding, the anode of second sustained diode 2 with connecing front end, the transformation
The first end of device T1 vice-side winding is connected to the anode of the second rectifier diode D5, the second end of the transformer T1 secondary winding
With connecing rear end, the cathode of the second rectifier diode D5 is connected to the front end of filter inductance L3, after the filter inductance L3
The anode of the first electrolytic capacitor C3 of end connection, the cathode connection rear end of the first electrolytic capacitor C3, the filter inductance L3
Output end of the rear end as isolated form two-transistor forward converter 30；
One inversion reversed phase unit 60 is connected to the output end of isolated form two-transistor forward converter 30, the inversion paraphase list
Member 60 exports alternating current after carrying out inversion conversion for the output voltage to isolated form two-transistor forward converter 30, and the inversion is fallen
The output end of phase element 60 is connected with the front end of the first filter inductance L4, and the rear end of the first filter inductance L4 connects load,
The first filter inductance L4 is used to filter out the high-frequency impulse of the alternating current, and provides power frequency sinusoidal ac for load.
In above-mentioned sine voltage conversion circuit, exported after network voltage is rectified and filtered using input unit 10
Pulsating dc voltage carries out boosting processing to pulsating dc voltage using PFC boost unit 20 later, in isolated form double tube positive exciting
In converter 30, first switch tube Q6 and second switch Q7 are the identical pwm control signals of a pair of of signal；First switch tube Q6
It is simultaneously turned on second switch Q7, the primary coil of transformer T1 is bonded to secondary coil by magnetic core lotus root, passes through the second rectification two
Pole pipe D5 is rectified and is exported after the first electrolytic capacitor C3 is filtered into direct current to inversion reversed phase unit 60；Work as first switch tube
When Q6 and second switch Q7 is turned off, in order to keep the primary coil current direction of transformer T1 identical, first afterflow two
Pole pipe D3 and the second sustained diode 2 are connected, and carry out magnetic reset to magnetic core, by the turn ratio for changing the former secondary side transformer T1
Secondary voltage can be made below or above primary side input voltage, and then reach buck or boost purpose.Based on above structure, this reality
With the novel isolation transmission for realizing voltage, the PF value of step-up/down conversion equipment can be effectively improved, while also improving output
Quality of voltage, so that voltage conversion process is more safe and reliable.On this basis, the utility model is in inversion reversed phase unit 60
Output end is provided with the first filter inductance L4, and the high-frequency impulse of the alternating current can be filtered out using the first filter inductance L4, so that
Load can obtain good power frequency sinusoidal ac, and then improve output voltage quality, to meet power demands.
In the present embodiment, the input unit 10 includes socket, insurance F2, lightning protection resistance RV1, common mode inhibition inductance
L1, safety capacitor CX1 and rectifier bridge DB1, the insurance F2 are serially connected on the zero curve or firewire of socket, the common mode inhibition inductance
The front end of L1 is parallel to socket, and the lightning protection resistance RV1 is parallel to the front end of common mode inhibition inductance L1, the safety capacitor CX1
The rear end of common mode inhibition inductance L1 is parallel to the input terminal of rectifier bridge DB1, the output end of the rectifier bridge DB1 is parallel with filter
Wave capacitor C1.
The PFC boost unit 20 includes boost inductance L2, third switching tube Q5, first as a preferred method,
The front end of rectifier diode D1 and the second electrolytic capacitor C2, the boost inductance L2 are connected to the output end of input unit 10, institute
The rear end for stating boost inductance L2 is connected to the drain electrode of third switching tube Q5, the source electrode of the third switching tube Q5 with connecing front end, institute
The grid of third switching tube Q5 is stated for accessing pwm control signal all the way, the drain electrode connection first of the third switching tube Q5 is whole
Flow diode D1 anode, output end of the cathode of the first rectifier diode D1 as PFC boost unit 20, and this first
The cathode of rectifier diode D1 connects the anode of the second electrolytic capacitor C2, and the cathode of the second electrolytic capacitor C2 is with connecing front end.
In above-mentioned PFC boost unit 20, when AC-input voltage samples AC voltage, PFC enters boost mode, to mention
High AC turns AC and is intelligently depressured the PF value of conversion topologies circuit when specific boosting principle is as follows: electric current warp when Q5 is connected, on C1
Boost inductance L2, Q5 to GND forming circuit, boost inductance L2 store energy；When Q5 shutdown, will form on boost inductance than defeated
Enter the much higher induced electromotive force of voltage, induced electromotive force forms unidirectional pulse voltage after continued flow tube D1 is rectified and gives again
C2 capacitor into filter and energy storage.And Q5 is that the input AC sine wave adopted according to control chip changes to increase or reduce Q5's
Turn-on time, so that electric current and voltage-phase become unanimously to improve PF value.
Further, in order to improve the driving capability of switch tube, the PFC boost unit 20 further includes having the first driving
Resistance R18, the second driving resistance R22 and driving diode D4, the grid of the third switching tube Q5 are connected to driving diode
The anode of D4, the first driving resistance R18 are parallel to the both ends of driving diode D4, and the cathode of the driving diode D4 is used
Resistance R22 is driven with being connected to front end by second in the anode of access pwm control signal, the driving diode D4.
In order to which rectification is better achieved, the isolated form two-transistor forward converter 30 further includes having a third rectifier diode
The cathode of D6, the third rectifier diode D6 are connected to the first end of transformer T1 secondary winding, and the third rectifies two poles
The anode of pipe D6 is connected to the second end of transformer T1 secondary winding.
The present embodiment further includes having a MCU control unit 80 as a preferred method, the grid of the first switch tube Q6
The grid of pole, the grid of second switch Q7 and third switching tube Q5 is connected to MCU control unit 80, the MCU control
Unit 80 is for distinguishing output pwm signal to first switch tube Q6, second switch Q7 and third switching tube Q5, to control first
Switching tube Q6, second switch Q7 and third switching tube Q5 on off operating mode.Further, the MCU control unit 80 includes
Single-chip microcontroller U1 and its peripheral circuit.
It further include having an AC sampling unit 70 for the ease of the electric signal of monitoring exchange side, the AC sampling unit
70 are connected between the input terminal of input unit 10 and MCU control unit 80, and the AC sampling unit 70 is for acquiring input
Unit 10 exchanges the voltage of side and feeds back to MCU control unit 80.
About the concrete composition of the AC sampling unit 70, the AC sampling unit 70 includes amplifier U9B, the fortune
Two input terminals for putting U9B are connected to the input terminal of input unit 10, the output of the amplifier U9B by current-limiting resistance respectively
End is connected to MCU control unit 80.
For the ease of being acquired in real time to electric current, is connected between the source electrode and front end ground of the third switching tube Q5
One sampling resistor R2A, the source electrode of the third switching tube Q5 is connected to MCU control unit 80, by first sampling resistor
R2A and enable MCU control unit 80 acquire third switching tube Q5 source electrode electric signal.
As a preferred method, in order to be acquired to DC side electric signal, the present embodiment further includes having a D/C voltage
Sampling unit 40, the D/C voltage sampling unit 40 include the second sampling resistor R13 and third sampling resistor being sequentially connected in series
The front end of R15, the second sampling resistor R13 are connected to the rear end of filter inductance L3, the rear end of the third sampling resistor R15
It is connected to MCU control unit 80, enables MCU control unit 80 by the second sampling resistor R13 and third sampling resistor R15
Acquire the electric signal of the rear end filter inductance L3.So that MCU control unit 80 controls the duty ratio of inversion reversed phase unit 60.
About Converting Unit, the inversion reversed phase unit 60 includes the 4th switching tube Q1, the 5th switching tube Q2, the 6th switch
The inverter bridge of pipe Q3 and the 7th switching tube Q4 composition, the grid of the 4th switching tube Q1, the grid of the 5th switching tube Q2, the 6th
The grid of the grid of switching tube Q3 and the 7th switching tube Q4 are connected to MCU control unit 80, by the MCU control unit
80 and control the 4th switching tube Q1, the 5th switching tube Q2, the 6th switching tube Q3 and the 7th switching tube Q4 on or off, to enable
It states inversion reversed phase unit 60 and exports alternating current.
In intelligent sine voltage conversion circuit disclosed by the utility model based on PFC normal shock full-bridge, compared to existing
For technology, firstly, the utility model has high PF value, realizing power grid and be isolated with output end, safety is very high, meanwhile,
Output voltage, and fixed output frequency can be automatically adjusted in input full voltage range, again, output voltage is to repair
Positive wave output, is pressed with automatic shaping function to alternating current, in addition, the output end of the inversion reversed phase unit 60 is connected to the first filter
The rear end of wave inductance L4, the first filter inductance L4 are used to be load supplying, can be filtered out in alternating current using the first filter inductance L4
High-frequency impulse, thus for load power frequency sinusoidal ac is provided.
The above is the utility model preferred embodiment, is not intended to limit the utility model, all practical at this
Modification, equivalent replacement or the improvement etc. made in novel technical scope, should be included in the model that the utility model is protected
In enclosing.
Claims (10)
1. a kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge, which is characterized in that include:
One input unit, for exporting DC voltage；
One PFC boost unit, is connected to the output end of input unit, carries out boosting for the output voltage to input unit and turns
It changes；
One isolated form two-transistor forward converter includes first switch tube, second switch, the first freewheeling diode, second continuous
Flow diode, the second rectifier diode, transformer, the second filter inductance and the first electrolytic capacitor, the leakage of the first switch tube
Pole is connected to the output end of PFC boost unit, and the source electrode of the first switch tube is connected to the first end of transformer primary winding,
The second end of the transformer primary winding is connected to the drain electrode of second switch, and the source electrode of the second switch connects front end
Ground, the grid of the first switch tube and the grid of second switch are for accessing identical pwm signal, first afterflow two
The cathode of pole pipe is connected to the drain electrode of first switch tube, and the anode of first freewheeling diode is connected to transformer primary winding
Second end, the cathode of second freewheeling diode is connected to the first end of transformer primary winding, second afterflow two
With connecing front end, the first end of the transformer secondary winding is connected to the anode of the second rectifier diode to the anode of pole pipe, described
Second termination back-end of transformer secondary winding, before the cathode of second rectifier diode is connected to the second filter inductance
End, the rear end of second filter inductance connects the anode of the first electrolytic capacitor, after the cathode connection of first electrolytic capacitor
End ground, output end of the rear end of second filter inductance as isolated form two-transistor forward converter；
One inversion reversed phase unit, is connected to the output end of isolated form two-transistor forward converter, the inversion reversed phase unit for pair
The output voltage of isolated form two-transistor forward converter exports alternating current, the output of the inversion reversed phase unit after carrying out inversion conversion
End is connected with the front end of the first filter inductance, and the rear end of first filter inductance connects load, and first filter inductance is used
Power frequency sinusoidal ac is provided in the high-frequency impulse for filtering out the alternating current, and for load.
2. as described in claim 1 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The PFC boost unit includes boost inductance, third switching tube, the first rectifier diode and the second electrolytic capacitor, the liter
The front end of voltage inductance is connected to the output end of input unit, and the rear end of the boost inductance is connected to the drain electrode of third switching tube,
With connecing front end, the grid of the third switching tube is described for accessing pwm control signal all the way for the source electrode of the third switching tube
The anode of drain electrode the first rectifier diode of connection of third switching tube, the cathode of first rectifier diode is as PFC boost
The output end of unit, and the cathode of first rectifier diode connects the anode of the second electrolytic capacitor, the second electrolytic capacitor is born
Pole is with connecing front end.
3. as claimed in claim 2 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The PFC boost unit further includes having the first driving resistance, the second driving resistance and driving diode, the third switching tube
Grid is connected to the anode of driving diode, and the first driving resistor coupled in parallel is in the both ends of driving diode, the driving two
The cathode of pole pipe is connected to front end by the second driving resistance for accessing pwm control signal, the anode of the driving diode
Ground.
4. as described in claim 1 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The isolated form two-transistor forward converter further includes having a third rectifier diode, the cathode connection of the third rectifier diode
The second of transformer secondary winding is connected in the anode of the first end of transformer secondary winding, the third rectifier diode
End.
5. as claimed in claim 3 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
It further include having a MCU control unit, the grid of the grid of the first switch tube, the grid of second switch and third switching tube
It is connected to MCU control unit, the MCU control unit is for distinguishing output pwm signal to first switch tube, second switch
Pipe and third switching tube, to control first switch tube, second switch and third switching tube on off operating mode.
6. as claimed in claim 5 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The MCU control unit includes single-chip computer and its peripheral circuit.
7. as claimed in claim 5 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
Further include having an AC sampling unit, the AC sampling unit be connected to input unit input terminal and MCU control unit it
Between, the AC sampling unit is used to acquire the voltage of input unit exchange side and feeds back to MCU control unit.
8. as claimed in claim 7 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The AC sampling unit includes amplifier, and it is single that two input terminals of the amplifier are connected to input by current-limiting resistance respectively
The input terminal of member, the output end of the amplifier are connected to MCU control unit.
9. as claimed in claim 5 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
The first sampling resistor is connected between the source electrode and front end ground of the third switching tube, the source electrode of the third switching tube is connected to
MCU control unit enables the electric signal of MCU control unit acquisition third switching tube source electrode by first sampling resistor.
10. as claimed in claim 5 based on the intelligent sine voltage conversion circuit of PFC normal shock full-bridge, which is characterized in that
It further include having a D/C voltage sampling unit, the D/C voltage sampling unit includes the second sampling resistor being sequentially connected in series and third
Sampling resistor, the front end of second sampling resistor are connected to the rear end of the second filter inductance, after the third sampling resistor
End is connected to MCU control unit, and MCU control unit is enabled to acquire second by second sampling resistor and third sampling resistor
The electric signal of filter inductance rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621382529.5U CN208424216U (en) | 2016-12-15 | 2016-12-15 | A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621382529.5U CN208424216U (en) | 2016-12-15 | 2016-12-15 | A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge |
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| Publication Number | Publication Date |
|---|---|
| CN208424216U true CN208424216U (en) | 2019-01-22 |
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| CN201621382529.5U Active CN208424216U (en) | 2016-12-15 | 2016-12-15 | A kind of intelligent sine voltage conversion circuit based on PFC normal shock full-bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655801A (en) * | 2016-12-15 | 2017-05-10 | 广东百事泰电子商务股份有限公司 | PFC forward full bridge-based intelligent sine wave voltage conversion circuit |
-
2016
- 2016-12-15 CN CN201621382529.5U patent/CN208424216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655801A (en) * | 2016-12-15 | 2017-05-10 | 广东百事泰电子商务股份有限公司 | PFC forward full bridge-based intelligent sine wave voltage conversion circuit |
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