CN106655779A - Phase shift full bridge soft switching charging circuit - Google Patents
Phase shift full bridge soft switching charging circuit Download PDFInfo
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- CN106655779A CN106655779A CN201510729458.5A CN201510729458A CN106655779A CN 106655779 A CN106655779 A CN 106655779A CN 201510729458 A CN201510729458 A CN 201510729458A CN 106655779 A CN106655779 A CN 106655779A
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- 239000003990 capacitor Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
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- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
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- H02J7/0072—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
- H02M1/0058—Transistor switching losses by employing soft switching techniques, i.e. commutation of transistors when applied voltage is zero or when current flow is zero
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
Abstract
The invention belongs to a charger technology field, to be specific, discloses a phase shift full bridge soft switching charging circuit. A first switching tube and a third switching tube, which are serially connected together, are parallely connected with a second switching tube and a fourth switching tube, which are serially connected together. A positive pole and a negative pole of an input direct power supply is connected with the two ends of the switching tubes. The first switching tube is connected with a primary side of a transformer by a primary side leakage inductor, and the primary side of the transformer is connected with the fourth switching tube. A fifth diode is serially connected with a sixth diode, and a seventh diode is serially connected with an eighth diode. One end of the secondary side of the transformer is connected with the connection part of the fifth diode and the sixth diode, and the other end of the secondary side of the transformer is connected with the connection part of the seventh diode and the eighth diode. The cathode of the fifth diode and the cathode of the seventh diode are connected with one end of an auxiliary resonance circuit. The anode of the sixth diode and the anode of the eighth diode are connected with the other end of the auxiliary resonance circuit. The phase shift full bridge soft switching charging circuit is advantageous in that ZCS of all of main switches and auxiliary switches is realized in a load range, and therefore the soft switching of the rectification diodes is realized.
Description
Technical field
The invention belongs to charger technical field, and in particular to a kind of phase shifting full bridge soft switch charging circuit.
Background technology
In high-power charger, full-bridge topologies circuit is generally adopted, and using pulsewidth modulation (PWM)
Mode adjusts charger voltage, electric current output.Using PWM mode, power tube is usually operated to be opened firmly
Off status, traditional hard switching circuit once with simple structure, it is easy to control be widely used, but due to
Electrical switch be a kind of " hard switching ", i.e. power switch pipe to be switched on or off be voltage or electricity on device
Stream is not equal in the state of zero and forces what is carried out, and the switching loss of circuit is very big, and this causes PWM switching techniques
High frequency receive many restrictions；
Present generation power supplies increasingly develop to Sofe Switch direction, widely used in full-bridge circuit at present
Soft switch technique is mainly two kinds of Zero-voltage soft switch (ZVS) and zero-voltage zero-current soft switch (ZVZCS),
Zero-voltage zero-current soft switch (ZVZCS) is mainly adopted in IGBT on-off circuits.
In existing IGBT Sofe Switch ZVZCS circuits, the ZVT of advanced arm relies primarily on the electricity of parallel connection
Hold with transformer leakage inductance to realize.The realization of lagging leg zero current has various ways.Have former limit series connection every
The method of straight electric capacity and saturable reactor, saturable reactor is operated in saturation in normal work in this circuit
State, circuit asks in the commutation phase and make primary current reset by capacitance, realizes zero-current switching, shortcoming
Be pulsactor loss ratio it is larger, have impact on whole system and obtain efficiency；What is had seals in two or two in lagging leg
Pole pipe, the reverse flow of the primary current that it may be caused using series diode blocking capacitor voltage.Can be with
The Zero Current Switch of lagging leg, this circuit topology are realized in arbitrary load and change range of input voltage
Shortcoming be due to having connected diode in lagging leg, so as to increase the conduction loss of former limit；Have
Secondary realizes ZCS by the way of coupling inductance is to clamp capacitor charging, but coupling inductance not only processes multiple
Miscellaneous high cost, and increased extra loss.
The content of the invention
It is an object of the invention to provide a kind of phase shifting full bridge soft switch charging circuit, the circuit can not only be negative
The ZCS of all master switchs and auxiliary switch is realized in the range of load, the soft conversion of the diode of rectification two is also achieved,
The resonant inductance of auxiliary circuit also has effect to the conducting of master switch, the auxiliary being present in the ZCS circuits of part
The reverse-recovery problems of the switch diode of inverse parallel two are also eliminated.
Realize the technical scheme of the object of the invention：A kind of phase shifting full bridge soft switch charging circuit, the circuit includes
Be input into straight power supply, first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube, former limit leakage inductance,
Transformator, the 5th diode, the 6th diode, the 7th diode, the 8th diode, auxiliary resonance circuit
With battery Battery, the first switch pipe of series connection, the 3rd switching tube are opened with the second switch pipe connected, the 4th
Close pipe in parallel；It is input into the positive pole of straight power supply to be connected with one end of first switch pipe, one end of second switch pipe,
The negative pole for being input into straight power supply is connected with one end of the 3rd switching tube, the 4th switching tube；First switch pipe it is another
End is connected with one end of former limit leakage inductance, and the other end of former limit leakage inductance is connected with former limit one end of transformator, transformation
The former limit other end of device is connected with the 4th switching tube other end；5th diode and the 6th Diode series, the
Seven diodes and the 8th Diode series, secondary one end of transformator and the 5th diode, the 6th diode
Junction connects, and the secondary other end of transformator is connected with the junction of the 7th diode, the 8th diode；
5th diode, the anode of the 7th diode are connected with one end of auxiliary resonance circuit, auxiliary resonance circuit
The end is connected with the positive pole of battery Battery；6th diode, the anode of the 8th diode and auxiliary resonance electricity
The other end connection on road, the end of auxiliary resonance circuit is connected with the negative pole of battery Battery.
Be provided with LC filter circuits between described auxiliary resonance circuit and power supply Battery, LC filter circuits by
Filter inductance, filter inductance composition.
(D10 is constituted described first switch pipe the first diode in parallel by IGBT1 and therewith, GBT1's
Emitter stage anode, one end of the first electric capacity, one end of the former limit leakage inductance of transformator respectively with the first diode
Connection, the other end of the former limit leakage inductance of transformator T1 is connected with former limit one end of transformator；The current collection of IGBT1
Pole C negative electrodes respectively with the first diode, the other end of the first electric capacity are connected.
Described second switch pipe second diode in parallel by IGBT2 and therewith is constituted, the transmitting of IGBT2
Pole is connected with one end of the anode of the second diode, the colelctor electrode C of IGBT2 respectively with the moon of the second diode
Pole, the other end connection of the second electric capacity；The colelctor electrode C of the colelctor electrode C and IGBT2 of IGBT1 is connected.
The 3rd described switching tube threeth diode in parallel by IGBT3 and therewith is constituted, the transmitting of IGBT3
Pole anode respectively with the 3rd diode, one end of the 3rd electric capacity are connected, the colelctor electrode C of IGBT3 respectively with
The negative electrode of the 3rd diode, the other end of the 3rd electric capacity, the emitter stage connection of IGBT1.
The 4th described switching tube fourth diode in parallel by IGBT4 and therewith is constituted, the transmitting of IGBT4
Pole anode respectively with the 4th diode, the emitter stage of IGBT3 are connected, the colelctor electrode C of IGBT4 respectively with
The negative electrode of the 4th diode, the other end of the 4th electric capacity, the emitter stage of IGBT3, transformator former limit it is another
End connection；The colelctor electrode C composition leading-bridges of the switching tube of first switch Guan Yu tri-, second switch Guan Yu
The colelctor electrode C composition lagging legs of four switching tubes.
Described auxiliary resonance circuit is by resonant inductance, resonant capacitance, diode, clamp diode and auxiliary
Switch composition, the pole of clamp two of the negative electrode, the negative electrode of the 7th diode and auxiliary resonance circuit of the 5th diode
The negative electrode of pipe, one end of resonant capacitance, one end connection of the filter inductance of LC filter circuits, the 6th diode
Anode, the anode of the 8th diode and auxiliary resonance circuit diode anode, the filter of LC filter circuits
One end connection of ripple inductance；The anode of clamp diode, the other end of resonant capacitance and booster diode negative electrode,
The collector connection of auxiliary switch, the anode of clamp diode, the emitter stage of auxiliary switch and LC filter circuits
The other end connection of filter inductance.
The Advantageous Effects of the present invention：Tie with traditional zero-voltage zero-current (ZVZCS) full-bridge converter
Structure is different, and secondary is designed as the ZVZCS full-bridge converter structures of auxiliary resonance circuit, this new converter
The ZCS of all master switchs and auxiliary switch can be realized in loading range, the power that the auxiliary circuit causes is damaged
Consumption is less, can improve power-efficient.Secondary clamp circuit can also rise to two diodes of secondary rectifier bridge
To peak voltage clamping action, the direction voltage that the diode of rectifier bridge two is born is set to limit within the specific limits,
Two diode voltage stress are reduced, the soft conversion of the diode of rectification two is realized, without setting to rectifier bridge again
Meter buffer circuit.No-voltage, the Zero Current Switch of full-bridge circuit IGBT power tubes are realized, be increased in secondary
One auxiliary resonance circuit, is added in the secondary of main transformer, to realize that the ZCS phase shifting full bridge softs of master switch are opened
Close charging circuit topology.
Description of the drawings
Fig. 1 is a kind of structural representation of phase shifting full bridge soft switch charging circuit provided by the present invention.
Fig. 2 is the phase in a kind of nine working stages of phase shifting full bridge soft switch charging circuit provided by the present invention
Powered-down pressure, current waveform figure.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the first diode D1 first switch pipe S1 in parallel by IGBT1 and therewith is constituted,
The emitter stage of IGBT1 anode, one end of the first electric capacity C1, transformator T1 respectively with the first diode D1
Former limit leakage inductance Lk one end connection, the other end of former limit leakage inductance Lk of transformator T1 is with transformator T1's
Former limit one end connects.The colelctor electrode C of IGBT1 negative electrode, the first electric capacity C1 respectively with the first diode D1
The other end connection.Second diode D2 second switch pipe S2 in parallel by IGBT2 and therewith is constituted,
The emitter stage of IGBT2 is connected with one end of the anode of the second diode D2, the colelctor electrode C difference of IGBT2
Negative electrode, the other end of the second electric capacity C2 with the second diode D2 is connected；The colelctor electrode C of IGBT1 with
The colelctor electrode C connections of IGBT2.3rd diode D3 3rd switching tube S3 in parallel by IGBT3 and therewith
Composition, the emitter stage of IGBT3 anode respectively with the 3rd diode D3, one end of the 3rd electric capacity C3 are connected,
The colelctor electrode C of IGBT3 negative electrode, the other end, the IGBT1 of the 3rd electric capacity C3 respectively with the 3rd diode D3
Emitter stage connection.4th diode D4 4th switching tube S4 in parallel by IGBT4 and therewith is constituted,
The emitter stage of IGBT4 anode respectively with the 4th diode D4, the emitter stage of IGBT3 are connected, IGBT4
Colelctor electrode C negative electrodes respectively with the 4th diode D4, the other end of the 4th electric capacity C4, IGBT3
The former limit other end connection of emitter stage, transformator T1.The E ends of first switch pipe S1 connect the 3rd switching tube
The colelctor electrode C composition leading-bridges of S3, the E ends of second switch pipe S2 connect the current collection of the 4th switching tube S4
Pole C constitutes lagging leg.
VsIt is the straight power supply of input；It is input into straight power supply VsPositive pole colelctor electrode C respectively with first switch pipe S1,
The colelctor electrode C connections of second switch pipe S2, are input into straight power supply VsNegative pole and the 3rd switching tube S3 transmitting
Pole, the emitter stage connection of the 4th switching tube S4.
As shown in figure 1, no-voltage, the Zero Current Switch in order to realize full-bridge circuit IGBT power tubes, in pair
While increased an auxiliary resonance circuit, auxiliary resonance circuit is by a resonant inductance Lr, resonant capacitance Cr,
Diode Dh, clamp diode DcWith auxiliary switch SaComposition, is added in the secondary of main transformer T1, to realize
The ZCS phase shifting full bridge soft switch charging circuit topologies of master switch.Filter inductance Lo, filter inductance Co
Constitute the LC filter circuits of output.
Secondary one end of transformator T1 connects with the negative electrode of the anode of the 5th diode D5, the 6th diode D6
Connect, the 5th diode D5 connects with the 6th diode D6.The secondary other end of transformator T1 and the seven or two
The negative electrode connection of the anode of pole pipe D7, the 8th diode D8, the anode and the eight or two of the 7th diode D7
The series connection of pole pipe D8.The negative electrode of the 5th diode D5, the negative electrode of the 7th diode D7 and auxiliary resonance electricity
The clamp diode D on roadcNegative electrode, resonant capacitance CrOne end, the filter inductance Lo's of LC filter circuits
One end connects.The two of the anode of the 6th diode D6, the anode of the 8th diode D8 and auxiliary resonance circuit
Pole pipe DhAnode, the filter inductance Co of LC filter circuits one end connection.Clamp diode DcAnode,
Resonant capacitance CrThe other end and booster diode DaNegative electrode, auxiliary switch SaCollector connection, clamp two
Pole pipe DcAnode, auxiliary switch SaThe other end of filter inductance Co of emitter stage and LC filter circuits connect
Connect.Battery is battery, and battery Battery is loaded as charging circuit, and its output voltage is Vo.Battery
The positive pole of Battery is connected with the two ends of the filter inductance Co of LC filter circuits.
First electric capacity C1 and the 3rd electric capacity C3 are respectively and advanced arm first switch pipe S1, the 3rd switching tube
Buffering electric capacity S3 in parallel, realizes the no-voltage ZVS switch of two switching tubes.
Lk is the former limit leakage inductance of transformator T1；T1 is high frequency transformer, plays energy transmitting effect；Diode
D5～D8 constitutes rectification circuit in transformer secondary.
Resonant inductance Lr, resonant capacitance Cr, diode DhWith auxiliary switch SaAn energy is constituted in secondary to delay
Circuit is rushed, reset primary current during commutation, realize the zero current ZCS switches of lagging leg；
Due to Lr、CrCorresponding unwanted oscillation can be produced when resonance, can cause to switch SaVoltage stress hand over
Height, so in switch SaA clamp diode D is with the addition of between diode D7c, to improve auxiliary circuit
Performance, there is this clamp diode DcAfter, it is possible to avoid SaThe too high problem of voltage stress, if
Have turned off suddenly in resonance first half cycle auxiliary switch, DcI can be givenLkContinuous current circuit is provided.
Lo, Co constitute the LC filter circuits of output.
Battery is battery, and used as charging circuit load, output voltage is Vo。
Below in conjunction with the accompanying drawings 1 and Fig. 2 to for a kind of phase shifting full bridge soft switch charging circuit provided by the present invention
Operation principle illustrate, the course of work of soft switch circuit is divided into nine stages,
(the t of mode 10～t1)：Switching tube S1 and S4 are simultaneously turned on, t0Moment opens auxiliary switch Sa, Lr、Cr
Generation resonance, secondary current and rectifier bridge voltage resonance rise, and the voltage on resonant capacitance reaches maximum
2(nVs-Vo)。
(the t of mode 21～t2)：t1Moment, auxiliary switch SaShut-off, exports commutating voltage Vrec.Fall back to immediately just
Constant value nVs, in this mode downconverter input energy Jing transformator load is delivered to.
(the t of mode 32～t3)：Switching tube S1 is turned off, and switching tube S4 is held on.Primary current is in leakage inductance Llk's
Effect is lower to keep that direction is constant to be charged to the first electric capacity Cl to give the 3rd electric capacity C3 electric discharges, the electricity of the first electric capacity Cl
Pressure rises, and the voltage of the 3rd electric capacity C3 declines. the decline of the voltage fast linear at transformator two ends.If recognized
It is sufficiently large for leakage inductance, primary current nIoIt is held essentially constant, the voltage V of transformer primary sideABAlso linear decline.
(the t of mode 43～t4)：Transformer secondary voltage is declined with former limit with identical speed, when voltage drops to
2(nVs-Vo) when, DhConducting, CrElectric discharge, secondary voltage clamps and reflexes to former limit by capacitance voltage.Former limit
Electric current IPThe rapid decrease in the presence of reflected voltage, IPStill C1 charges, C3 electric discharges.
(the t of mode 54～t5)：Switching tube S3 is completely discharged to zero, D3 conductings.Switching tube S3 can be
This stage no-voltage is open-minded.Whole reflected voltage is added in leakage inductance, and electric current continues in the presence of reflected voltage
Reduce.
(the t of mode 65～t6)：After primary current is entirely zero.Transformer secondary output current is zero, load
Electric current is provided completely by resonant capacitance.Secondary voltage rapid decrease, at the end of this stage zero is dropped to.
(the t of mode 76～t7)：After the voltage of resonant capacitance drops to zero, clamp capacitor discharges completely, therefore secondary
The diode of side rectification two is all turned on, and load current passes through the diode D of secondary twoh、DcAfterflow, due to former limit
Electric current ipIn t6Moment complete reset-to-zero, therefore in t8Moment lagging leg switching tube S4, realizes zero
Switch off current.
(the t of mode 87～t8)：Secondary current continues through the diode of secondary rectification two, t7～t8For lagging leg
The Dead Time of switching tube S2, S4.
(the t of mode 98～t9)：t8Moment, switching tube S2 realized zero current turning-on, this is due to leakage inductance LkWork
With primary current ipCan not be mutated, electric current rises in the suppression lower linear of leakage inductance, starts negative half-cycle.
The present invention is explained in detail above in conjunction with drawings and Examples, but the present invention be not limited to it is above-mentioned
Embodiment, in the ken that those of ordinary skill in the art possess, can be with without departing from the present invention
Various changes can be made on the premise of objective.The content not being described in detail in the present invention can adopt existing skill
Art.
Claims (7)
1. a kind of phase shifting full bridge soft switch charging circuit, it is characterised in that：The circuit includes the straight power supply of input
(Vs), first switch pipe (S1), second switch pipe (S2), the 3rd switching tube (S3), the 4th switching tube
(S4), former limit leakage inductance (Lk), transformator (T1), the 5th diode (D5), the 6th diode (D6),
7th diode (D7), the 8th diode (D8), auxiliary resonance circuit and battery Battery, the of series connection
One switching tube (S1), the 3rd switching tube (S3) and the second switch pipe (S2), the 4th switching tube (S4) connected
It is in parallel；It is input into straight power supply (Vs) positive pole and first switch pipe (S1) one end, second switch pipe (S2)
One end connection, be input into straight power supply (Vs) negative pole and the 3rd switching tube (S3), the 4th switching tube (S4)
One end connection；The other end of first switch pipe (S1) is connected with one end of former limit leakage inductance (Lk), former limit
The other end of leakage inductance (Lk) is connected with former limit one end of transformator (T1), and the former limit of transformator (T1) is another
One end is connected with the 4th switching tube (S4) other end；5th diode (D5) and the 6th diode (D6)
Series connection, the 7th diode (D7) is connected with the 8th diode (D8), secondary one end of transformator (T1)
It is connected with the junction of the 5th diode (D5), the 6th diode (D6), the secondary of transformator (T1)
The other end is connected with the junction of the 7th diode (D7), the 8th diode (D8)；5th diode (D5),
The anode of the 7th diode (D7) is connected with one end of auxiliary resonance circuit, the end of auxiliary resonance circuit with
The positive pole connection of battery Battery；6th diode (D6), the anode of the 8th diode (D8) and auxiliary
The other end connection of resonance circuit, the end of auxiliary resonance circuit is connected with the negative pole of battery Battery.
2. a kind of phase shifting full bridge soft switch charging circuit according to claim 1, it is characterised in that：Institute
LC filter circuits are provided between the auxiliary resonance circuit stated and power supply Battery, LC filter circuits are by filtered electrical
Sense (Lo), filter inductance (Co) composition.
3. a kind of phase shifting full bridge soft switch charging circuit according to claim 2, it is characterised in that：Institute
(D10 is constituted the first switch pipe (S1) stated the first diode in parallel by IGBT1 and therewith, GBT1's
Emitter stage anode, one end of the first electric capacity (C1), transformator (T1) respectively with the first diode (D1)
Former limit leakage inductance (Lk) one end connection, the other end and transformator of the former limit leakage inductance (Lk) of transformator T1
(T1) former limit one end connection；The colelctor electrode C of IGBT1 negative electrodes respectively with the first diode (D1),
The other end connection of the first electric capacity (C1).
4. a kind of phase shifting full bridge soft switch charging circuit according to claim 3, it is characterised in that：Institute
The second switch pipe (S2) stated second diode (D2) in parallel by IGBT2 and therewith is constituted, IGBT2
Emitter stage be connected with one end of the anode of the second diode (D2), the colelctor electrode C of IGBT2 is respectively with
The negative electrode of two diodes (D2), the other end connection of the second electric capacity (C2)；The colelctor electrode C of IGBT1 with
The colelctor electrode C connections of IGBT2.
5. a kind of phase shifting full bridge soft switch charging circuit stated according to claim 4, it is characterised in that：It is described
The 3rd switching tube (S3) the 3rd diode (D3) by IGBT3 and therewith in parallel constitute, IGBT3's
Emitter stage anode respectively with the 3rd diode (D3), one end of the 3rd electric capacity (C3) are connected, IGBT3
Colelctor electrode C negative electrode, the other end, the IGBT1 of the 3rd electric capacity (C3) respectively with the 3rd diode (D3)
Emitter stage connection.
6. a kind of phase shifting full bridge soft switch charging circuit stated according to claim 5, it is characterised in that：It is described
The 4th switching tube (S4) the 4th diode (D4) by IGBT4 and therewith in parallel constitute, IGBT4's
Emitter stage anode respectively with the 4th diode (D4), the emitter stage of IGBT3 are connected, the current collection of IGBT4
Pole C negative electrodes respectively with the 4th diode (D4), the other end of the 4th electric capacity (C4), IGBT3
The former limit other end connection of emitter stage, transformator (T1)；First switch pipe (S1) and the 3rd switching tube (S3)
Colelctor electrode C composition leading-bridges, the colelctor electrode C of second switch pipe (S2) and the 4th switching tube (S4)
Composition lagging leg.
7. a kind of phase shifting full bridge soft switch charging circuit stated according to claim 6, it is characterised in that：It is described
Auxiliary resonance circuit by resonant inductance (Lr), resonant capacitance (Cr), diode (Dh), clamp diode
(Dc) and auxiliary switch (Sa) composition, the negative electrode of the 5th diode (D5), the 7th diode (D7)
Negative electrode and auxiliary resonance circuit clamp diode (Dc) negative electrode, resonant capacitance (Cr) one end,
One end connection of the filter inductance (Lo) of LC filter circuits, the anode of the 6th diode (D6), the eight or two
The anode of pole pipe (D8) and the diode (D of auxiliary resonance circuith) anode, the filtering of LC filter circuits
One end connection of inductance (Co)；Clamp diode (Dc) anode, resonant capacitance (Cr) the other end
With booster diode (Da) negative electrode, auxiliary switch (Sa) collector connection, clamp diode (Dc)
Anode, auxiliary switch (Sa) emitter stage and LC filter circuits filter inductance (Co) the other end
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729458.5A CN106655779A (en) | 2015-10-30 | 2015-10-30 | Phase shift full bridge soft switching charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510729458.5A CN106655779A (en) | 2015-10-30 | 2015-10-30 | Phase shift full bridge soft switching charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106655779A true CN106655779A (en) | 2017-05-10 |
Family
ID=58810022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510729458.5A Pending CN106655779A (en) | 2015-10-30 | 2015-10-30 | Phase shift full bridge soft switching charging circuit |
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|---|---|
| CN (1) | CN106655779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823206A (en) * | 2019-04-02 | 2019-05-31 | 浙江大学 | A kind of Sofe Switch high efficiency wireless charging method based on bilateral phase shift and frequency modulation |
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| CN1253409A (en) * | 1998-11-10 | 2000-05-17 | 深圳市中兴通讯股份有限公司 | Asymmetric full-bridge phase-shift type zero-voltage zero-current soft switch circuit and its method |
| CN1307397A (en) * | 2000-01-24 | 2001-08-08 | 浙江大学 | DC/DC converter circuit with zero-current soft switch |
| CN1540851A (en) * | 2003-10-31 | 2004-10-27 | 哈尔滨工业大学 | Switch PWM convertor working at zero voltage and zero current of full bridge |
| JP5506966B1 (en) * | 2013-03-01 | 2014-05-28 | 三菱電機株式会社 | Isolated DC / DC converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1253409A (en) * | 1998-11-10 | 2000-05-17 | 深圳市中兴通讯股份有限公司 | Asymmetric full-bridge phase-shift type zero-voltage zero-current soft switch circuit and its method |
| CN1307397A (en) * | 2000-01-24 | 2001-08-08 | 浙江大学 | DC/DC converter circuit with zero-current soft switch |
| CN1540851A (en) * | 2003-10-31 | 2004-10-27 | 哈尔滨工业大学 | Switch PWM convertor working at zero voltage and zero current of full bridge |
| JP5506966B1 (en) * | 2013-03-01 | 2014-05-28 | 三菱電機株式会社 | Isolated DC / DC converter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109823206A (en) * | 2019-04-02 | 2019-05-31 | 浙江大学 | A kind of Sofe Switch high efficiency wireless charging method based on bilateral phase shift and frequency modulation |
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Application publication date: 20170510 |