CN102723873B - Dual-input full-isolation integrated current transformer - Google Patents
Dual-input full-isolation integrated current transformer Download PDFInfo
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- CN102723873B CN102723873B CN201210179727.1A CN201210179727A CN102723873B CN 102723873 B CN102723873 B CN 102723873B CN 201210179727 A CN201210179727 A CN 201210179727A CN 102723873 B CN102723873 B CN 102723873B
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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
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Abstract
The invention discloses a dual-input full-isolation integrated current transformer. The dual-input full-isolation integrated current transformer comprises a current type full-bridge transformation circuit of a first front-stage input port, a series resonance full-bridge transformation circuit of a second front-stage input port, a high-frequency isolation transformer and a back-stage rectifier circuit. A current type full-bridge transformer is used to realize inversion of a high-frequency square wave of an input direct-current current source and achieve soft switching of a switch tube in the adopted phase shift PWM (Pulse Width Modulation) control way at the same time; a series resonance transformer is used to realize transformation of a high-frequency sine current of an input direct-current voltage source; a multi-winding transformer is used to realize coupling isolation transmission of the high-frequency square wave current and the sine current on the input sides; the two input ports cannot be influenced by transformer voltage clamping; and all the primary winding voltages of the transformers are reduced value of output voltage. Moreover, the introduced series resonance process that a resonance inductor and a resonance capacitor have the same frequency as a switch realizes transformation from an input power source to a resonance current source and achieves switch changeover of all power tubes at a zero crossing point of resonance current so as to reduce circuit loss.
Description
Technical field
The present invention relates to a kind of integrated dual input current transformer realizing DC-AC-DC energy transformation, particularly relate to three port DC/DC converters of a kind of current source type full-bridge converter and the integrated dual input of series resonant converter.This converter utilizes current mode full-bridge converter to realize the high frequency square wave inversion in input direct-current electric current source, adopt series resonant converter to realize the high frequency sinusoidal current transformation of input voltage source, utilize the transformer of Multiple coil to realize the dual input three port DC/DC converter of the coupling isolation transmission of input side high frequency square wave electric current and sinusoidal current.
Background technology
Along with constantly popularizing of new forms of energy product, emerge in large numbers a large amount of topological structure being applicable to clean energy resource and powering, wherein multiport converter gains great popularity because of himself unique characteristic, because different energy forms, energy storage device and load have different electric pressures and voltage-current characteristic, therefore these equipment can not be connected directly between together.A multiport converter concentration power processing unit connects input source, memory device and load, makes control more convenient, reduces cost, and can obtain maximum energy from each new forms of energy.
The topology of existing multiport converter can be divided into non-isolation type circuit, half isolated form circuit and full isolated form circuit three major types, and the elementary cell forming multiport converter has voltage-type and the large class of current mode two.People concentrate on for the research of multiport converter the topology be made up of voltage-type elementary cell mostly, but during due to voltage-type elementary cell composition multiport converter, often cause two ports to influence each other to the process of Load transportation energy due to the voltage clamp effect of Transformer Winding.The change in voltage of a port, generally can have influence on the normal work of another port.And for current mode input translator, because the topology adopted is electric current one-way flow structure, the transmitted in both directions of power cannot be realized.
Utilize new energy, form novel power grid structure, become a kind of trend.And the shortcoming such as the uneven and voltage magnitude excursion of new forms of energy ubiquity power density is large, if adopt voltage-type multiport converter as the topology of power converter, certainly will need to introduce more complicated control mode, make up voltage magnitude and change the impact caused.
Summary of the invention
The object of the invention is to overcome deficiency of the prior art, a kind of dual input DC/DC converter topology is proposed: integrated current transformer is isolated in a kind of dual input entirely, it adopts current mode full-bridge converter to realize the high frequency square wave inversion in input direct-current electric current source, realizes the Sofe Switch of switching tube under the phase-shift PWM controlled mode adopted simultaneously; Series resonant converter is adopted to realize the high frequency sinusoidal current transformation of input dc power potential source, the transformer of Multiple coil is utilized to realize the coupling isolation transmission of input side high frequency square wave electric current and sinusoidal current, impact not by transformer voltage clamp between two input ports, the voltage on the former limit of Transformer Winding is the conversion of the voltage of output.And the series resonance process of the resonant inductance introduced and resonant capacitance and the same frequency of switching frequency, not only realizes the conversion of input power to resonance current source, and achieves the switching over of all power tubes at the zero crossing of resonance current, reduce circuit loss.
To achieve these goals, the present invention is achieved by the following technical solutions:
Integrated current transformer is isolated in a kind of dual input entirely, is by first prime current mode full-bridge circuit, the series resonant full bridge translation circuit of second prime input port, high-frequency isolation transformer and rear class rectification circuit composition;
First prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4composition has the current source type full bridge inverter of reverse voltage blocking ability, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1the other end connect power diode D
1and D
2anode, power diode D
1negative electrode connect power switch pipe V
11drain electrode, power diode D
2negative electrode connect power switch pipe V
12drain electrode, power switch pipe V
11source electrode connect power diode D
3anode, power switch pipe V
12source electrode connect power diode D
4anode, power diode D
3negative electrode connect power switch pipe V
13drain electrode, power diode D
4negative electrode connect power switch pipe V
14drain electrode, power switch pipe V
13and V
14source electrode connect direct-current input power supplying V
dC1negative pole; While this current mode full bridge inverter can realize the square wave inversion to input current, under the control mode adopted, realize the Sofe Switch of all switching tubes;
The series resonant full bridge translation circuit of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole connect power switch pipe V
21and V
22drain electrode, power switch pipe V
21source electrode connect power switch pipe V
23drain electrode, power switch pipe V
22source electrode connect power switch pipe V
24drain electrode, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected, resonant inductance L
rone end and power switch pipe V
21source electrode and V
23drain electrode connect, resonant inductance L
rthe other end and resonant capacitance C
rone end to be in series composition series resonance groove; This input port is by the power switch pipe V of anti-paralleled diode in four belt bodies
21, V
22, V
23, V
24and the series resonance groove to be become with resonance capacitance group by resonant inductance forms the full bridge inverter with reverse direction current flow function jointly, realize the conversion of input DC power to resonance current source, and realize the switching of device for power switching at resonance current zero crossing.Four power transistors with backward diode in body in above-mentioned explanation also can adopt diodeless power device and diode combinations in body to replace, the full-bridge circuit topology of composition same structure;
High-frequency isolation transformer is by two former limit winding N
1, N
2with two vice-side winding N
3, N
4composition, two former limit winding N
1, N
2the number of turn different but polarity is identical, two vice-side winding N
3, N
4the identical but polarity of the number of turn contrary, former limit winding N
1same Name of Ends and first prime current mode full-bridge circuit in power switch pipe V
11source electrode connect, N
1different name end and prime first current source type full-bridge circuit in power switch pipe V
12source electrode connect; Former limit winding N
2same Name of Ends and the resonant capacitance C of series resonant full bridge translation circuit of second prime input port
rthe other end connect, N
2different name end and the power switch pipe V of series resonant full bridge translation circuit of second prime input port
22source electrode connect; The vice-side winding N of high-frequency isolation transformer
3, N
4same Name of Ends be connected with rear class rectification circuit with different name end; The high frequency transformer of two former limit, two vice-side winding realizes the coupled transfer of square wave current source and resonance current source, two former limit winding N
1, N
2for same polarity coiling, connect two full-bridge converters of input side respectively, and the Same Name of Ends of two former limit windings connects respectively by switching tube V
11, V
13and V
21, V
23the front brachium pontis of composition, another termination is by switching tube V
12, V
14and V
23, V
24the rear brachium pontis of composition.Two vice-side winding N
3, N
4for the reversed polarity coiling of equal turn numbers;
Outlet side adopts capacitor filtering, realize the object of regulated output voltage, eliminate output inductor, also solve because filter inductance does not have the voltge surge that causes during continuous current circuit while reducing circuit volume, and owing to adopting capacitor filtering mode, the parallel connection being convenient to multimode expands the power capacity of system;
The rectification circuit of rear class has three kinds of schemes, and the first adopts four power transistor V with anti-paralleled diode in body
31, V
32, V
33, V
34the frequency converter structure combined; The second is by power switch pipe V on front a kind of basis
33, V
34replace with power diode, connected mode is identical with diode connected mode in original body; The third will be for having four power transistor V of anti-paralleled diode in body
31, V
32, V
33, V
34be combined as full-bridge circuit structure, and the isolating transformer of high frequency is two former limits winding, single vice-side winding form, and vice-side winding N
3same Name of Ends connect power transistor switch pipe V
31, V
33the front brachium pontis mid point of composition, different name end connects by switching tube V
32, V
34the rear brachium pontis mid point of composition.These three kinds of connected modes all can realize load energy and be transferred to prime second input source by rear class rectification circuit, high-frequency isolation transformer and series resonant converter, make this dual input DC/DC converter realize the transmitted in both directions of power.Be described as follows:
Scheme one;
Rear class rectification circuit adopts four power transistor V with anti-paralleled diode in body
31, V
32, V
33, V
34the frequency converter structure combined, power tube V
31emitter and power tube V
32emitter connect, rear class power tube V
33emitter and power tube V
34emitter connect, rear class power tube V
31collector electrode and a secondary N of high-frequency isolation transformer
3same Name of Ends connect, rear class power tube V
33collector electrode and a secondary N of high-frequency isolation transformer
3different name end connect, rear class power tube V
34collector electrode and a secondary N of high-frequency isolation transformer
4same Name of Ends connect, rear class power tube V
32collector electrode and a secondary N of high-frequency isolation transformer
4different name end connect, output filter capacitor C
1with load R
1be in parallel, its one end and rear class power tube V
31and V
32emitter connect, the other end and rear class power tube V
33and V
34emitter connect.
Voltage outlet side adopts capacitor filtering, realizes the object of regulated output voltage, eliminates output inductor.
Scheme two;
The rectification circuit of rear class adopts two power transistor V with anti-paralleled diode in body
41, V
42, and two power diode D
43, D
44combine circuit structure, rear class power tube V
41emitter and power tube V
42emitter connect, rear class power tube V
33emitter and power tube V
34emitter connect, rear class power diode D
43negative electrode and power diode D
44negative electrode connect, rear class power tube V
41collector electrode and a secondary N of high-frequency isolation transformer
3same Name of Ends connect, rear class power diode D
43negative electrode and a secondary N of high-frequency isolation transformer
3different name end connect, rear class power diode D
44negative electrode and a secondary N of high-frequency isolation transformer
4same Name of Ends connect, rear class power tube V
42collector electrode and a secondary N of high-frequency isolation transformer
4different name end connect, output filter capacitor C
2with load R
2be in parallel, its one end and rear class power tube V
41and V
42emitter connect, the other end and rear class power diode D
43anode and power diode D
44anode connect.
Voltage outlet side adopts capacitor filtering, saves filter inductance.
Scheme three;
The rectification circuit of rear class adopts four power transistor V with anti-paralleled diode in body
51, V
52, V
53, V
54composition full-bridge circuit structure, rear class power switch pipe V
51emitter and power switch pipe V
53collector electrode connect, and with the secondary N of high frequency transformer
3same Name of Ends connect, rear class power switch pipe V
52emitter and power switch pipe V
54collector electrode connect, and with the secondary N of high frequency transformer
3different name end connect, output filter capacitor C
3with load R
3be in parallel, its one end and rear class power tube V
51and V
52collector electrode connect, the other end and rear class power tube V
53and V
54emitter connect.Voltage outlet side adopts capacitor filtering, saves filter inductance.
Owing to adopting technique scheme, a kind of dual input provided by the invention isolates integrated current transformer compared with prior art entirely, and the beneficial effect had is:
The current mode full-bridge converter of first being connected respectively by four power switch pipes and four power diodes achieves the one-way flow of input current source, and the blocking ability of reverse voltage.Under the phase-shift PWM controlled mode adopted, achieve the Sofe Switch of power switch pipe; And series resonant full bridge converter is owing to introducing the series resonance groove of resonant inductance and resonant capacitance, the full bridge inverter having reverse direction current flow function is jointly formed with power switch pipe, realize the conversion of input DC power to resonance current source, and realize the switching of device for power switching at resonance current zero crossing.Achieve ZVS and ZCS of switching tube, when design circuit, the absorbing circuit of power device can be considered.The high-frequency isolation transformer of the winding composition of two same polarity former limit windings, two reversed polarity, realizes the coupled transfer of the electric current of input side, and by input side and outlet side isolation, and former limit winding voltage is the conversion of rear class output voltage.
And this dual input DC/DC converter, no matter be in the transmission of power forward or in the reverse transfer stage, all device for power switching of series resonant converter all switch at the zero crossing of electric current, substantially reduce the impact that the voltage overshoot on transformer leakage inductance causes.
Accompanying drawing explanation
The electrical connection diagram of integrated current transformer scheme one is isolated in a kind of dual input of Fig. 1 entirely;
The electrical connection diagram of integrated current transformer scheme two is isolated in a kind of dual input of Fig. 2 entirely;
The electrical connection diagram of integrated current transformer scheme three is isolated in a kind of dual input of Fig. 3 entirely.
Concrete execution mode:
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
Embodiment 1:
Integrated current transformer is isolated in a kind of dual input entirely:
As shown in Figure 1, first prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4what form has reverse voltage blocking ability, the full-bridge circuit structure of electric current one-way flow, wherein, and power diode D
1negative electrode meet power switch pipe V
11drain electrode, power diode D
2negative electrode meet power switch pipe V
12drain electrode, power diode D
3negative electrode meet power switch pipe V
13drain electrode, power diode D
4negative electrode meet power switch pipe V
14drain electrode, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1another termination power diode D
1and D
2anode, direct-current input power supplying V
dC1negative pole and power switch pipe V
13and V
14source electrode be connected; The former limit winding N of high-frequency isolation transformer
1same Name of Ends and first prime current source type full-bridge circuit in power switch pipe V
11source electrode and power diode D
3anode be connected, N
1different name end and first prime current source type full-bridge circuit in power switch pipe V
12source electrode and power diode D
4anode be connected.This just constitutes this converter prime first current mode full-bridge high-frequency inverter circuit.
The series resonant full bridge converter of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole and power switch pipe V
21and V
22drain electrode be connected, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected; Series resonance inductor L
rone end and power switch pipe V
21source electrode and V
23drain electrode be connected, series resonance inductor L
rthe other end and resonant capacitance C
rone end be connected, resonant capacitance C
rthe other end and former limit winding N
2same Name of Ends be connected, former limit winding N
2different name end and power switch pipe V
22source electrode and V
24drain electrode be connected.This just constitutes this converter prime second series resonant full bridge high-frequency inverter circuit.Resonant inductance L
rwith resonant capacitance C
rseries resonance realize the conversion of input side DC power supply to high frequency sinusoidal current source, and realize the switching of device for power switching at resonance current zero crossing.
High-frequency isolation transformer is by two former limit winding N
1, N
2with two vice-side winding N
3, N
4composition, two former limit winding N
1, N
2number of turn opposed polarity identical, two vice-side winding N
3, N
4the number of turn is identical, and polarity is contrary;
The rectification circuit of rear class adopts four power transistor V with anti-paralleled diode in body
31, V
32, V
33, V
34the frequency converter structure combined, the cycle translation circuit of outlet side and the connected mode of filter circuit are: a secondary N of high-frequency isolation transformer
3same Name of Ends and rear class power tube V
31collector electrode be connected; Different name end and rear class power tube V
33collector electrode be connected; Another secondary N of high-frequency isolation transformer
4same Name of Ends and rear class power switch pipe V
34collector electrode be connected, different name end and power tube switching tube V
32collector electrode be connected, output filter capacitor C
1one end and rear class power tube V
31and V
32emitter, and load R
1one end is connected; The other end and rear class power tube V
33and V
34emitter, and load R
1the other end be connected.
Foregoing describe the electric connecting mode of this current mode full-bridge and series resonant converter integrated dual input converter scheme one.And above-mentioned all power switch pipes with anti-paralleled diode in body, all can by the power switch pipe of diode in not belt body and power diode combination replacement.
Embodiment 2:
Integrated current transformer is isolated in a kind of dual input entirely:
As shown in Figure 2, first prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4what form has reverse voltage blocking ability, the full-bridge circuit structure of electric current one-way flow, wherein, and power diode D
1negative electrode meet power switch pipe V
11drain electrode, power diode D
2negative electrode meet power switch pipe V
12drain electrode, power diode D
3negative electrode meet power switch pipe V
13drain electrode, power diode D
4negative electrode meet power switch pipe V
14drain electrode, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1another termination power diode D
1and D
2anode, direct-current input power supplying V
dC1negative pole and power switch pipe V
13and V
14source electrode be connected; The former limit winding N of high-frequency isolation transformer
1same Name of Ends and first prime current source type full-bridge circuit in power switch pipe V
11source electrode and power diode D
3anode be connected, N
1different name end and first prime current source type full-bridge circuit in power switch pipe V
12source electrode and power diode D
4anode be connected.This just constitutes this converter prime first current mode full-bridge high-frequency inverter circuit.
The series resonant full bridge converter of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole and power switch pipe V
21and V
22drain electrode be connected, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected; Series resonance inductor L
rone end and power switch pipe V
21source electrode and V
23drain electrode be connected, series resonance inductor L
rthe other end and resonant capacitance C
rone end be connected, resonant capacitance C
rthe other end and former limit winding N
2same Name of Ends be connected, former limit winding N
2different name end and power switch pipe V
22source electrode and V
24drain electrode be connected.This just constitutes this converter prime second series resonant full bridge high-frequency inverter circuit.Resonant inductance L
rwith resonant capacitance C
rseries resonance realize the conversion of input side DC power supply to high frequency sinusoidal current source, and realize the switching of device for power switching at resonance current zero crossing.
High-frequency isolation transformer is by two former limit winding N
1, N
2with two vice-side winding N
3, N
4composition, two former limit winding N
1, N
2number of turn opposed polarity identical, two vice-side winding N
3, N
4the number of turn is identical, and polarity is contrary;
The rectification circuit of rear class adopts two power transistor V with anti-paralleled diode in body
41, V
42, and two power diode D
43, D
44combine circuit structure, the rectification transformating circuit of outlet side and the connected mode of filter circuit are: a vice-side winding N of high-frequency isolation transformer
3same Name of Ends and rear class power tube V
41collector electrode be connected; Different name end and rear class power diode D
43negative electrode be connected; Another vice-side winding N of high-frequency isolation transformer
4same Name of Ends and rear class power switch pipe D
44negative electrode be connected, different name end and power tube switching tube V
42collector electrode be connected, output filter capacitor C
2one end and rear class power tube V
41and V
42emitter, and load R
2one end is connected; The other end and rear class power tube D
43and D
44anode, and load R
2the other end be connected.
Foregoing describe the electric connecting mode of this current mode full-bridge and series resonant converter integrated dual input converter scheme two.And above-mentioned all power switch pipes with anti-paralleled diode in body, all can by the power switch pipe of diode in not belt body and power diode combination replacement.
Embodiment 3:
Integrated current transformer is isolated in a kind of dual input entirely:
As shown in Figure 3, first prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4what form has reverse voltage blocking ability, the full-bridge circuit structure of electric current one-way flow, wherein, and power diode D
1negative electrode meet power switch pipe V
11drain electrode, power diode D
2negative electrode meet power switch pipe V
12drain electrode, power diode D
3negative electrode meet power switch pipe V
13drain electrode, power diode D
4negative electrode meet power switch pipe V
14drain electrode, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1another termination power diode D
1and D
2anode, direct-current input power supplying V
dC1negative pole and power switch pipe V
13and V
14source electrode be connected; The former limit winding N of high-frequency isolation transformer
1same Name of Ends and first prime current source type full-bridge circuit in power switch pipe V
11source electrode and power diode D
3anode be connected, N
1different name end and first prime current source type full-bridge circuit in power switch pipe V
12source electrode and power diode D
4anode be connected.This just constitutes this converter prime first current mode full-bridge high-frequency inverter circuit.
The series resonant full bridge converter of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole and power switch pipe V
21and V
22drain electrode be connected, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected; Series resonance inductor L
rone end and power switch pipe V
21source electrode and V
23drain electrode be connected, series resonance inductor L
rthe other end and resonant capacitance C
rone end be connected, resonant capacitance C
rthe other end and former limit winding N
2same Name of Ends be connected, former limit winding N
2different name end and power switch pipe V
22source electrode and V
24drain electrode be connected.This just constitutes this converter prime second series resonant full bridge high-frequency inverter circuit.Resonant inductance L
rwith resonant capacitance C
rseries resonance realize the conversion of input side DC power supply to high frequency sinusoidal current source, and realize the switching of device for power switching at resonance current zero crossing.
High-frequency isolation transformer is by two former limit winding N
1, N
2with two vice-side winding N
3, N
4composition, two former limit winding N
1, N
2number of turn opposed polarity identical, two vice-side winding N
3, N
4the number of turn is identical, and polarity is contrary;
The rectification circuit of rear class adopts four power transistor V with anti-paralleled diode in body
51, V
52, V
53, V
54composition full-bridge circuit structure, the rectification transformating circuit of outlet side and the connected mode of filter circuit are: the secondary N of high-frequency isolation transformer
3same Name of Ends and rear class power switch pipe V
51emitter and power switch pipe V
53collector electrode be connected; Different name end and rear class power switch pipe V
52emitter and power switch pipe V
54collector electrode be connected; Output filter capacitor C
3one end and rear class power tube V
51and V
52collector electrode, and load R
3one end is connected; The other end and rear class power tube V
53and V
54emitter, and load R
3the other end be connected.This just constitutes the rear class output rectification circuit of this converter.
Foregoing describe the electric connecting mode that integrated current transformer scheme three is isolated in a kind of dual input entirely, and above-mentioned all power switch pipes with anti-paralleled diode in body, all can by the power switch pipe of diode in not belt body and power diode combination replacement.
Claims (2)
1. an integrated current transformer is isolated in dual input entirely, is made up of, it is characterized in that the series resonant full bridge translation circuit of first prime current mode full-bridge circuit, second prime input port, high-frequency isolation transformer and rear class rectification circuit:
First prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4composition has the current mode full bridge inverter of reverse voltage blocking ability, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1the other end connect power diode D
1and D
2anode, power diode D
1negative electrode connect power switch pipe V
11drain electrode, power diode D
2negative electrode connect power switch pipe V
12drain electrode, power switch pipe V
11source electrode connect power diode D
3anode, power switch pipe V
12source electrode connect power diode D
4anode, power diode D
3negative electrode connect power switch pipe V
13drain electrode, power diode D
4negative electrode connect power switch pipe V
14drain electrode, power switch pipe V
13and V
14source electrode connect direct-current input power supplying V
dC1negative pole;
The series resonant full bridge translation circuit of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole connect power switch pipe V
21and V
22drain electrode, power switch pipe V
21source electrode connect power switch pipe V
23drain electrode, power switch pipe V
22source electrode connect power switch pipe V
24drain electrode, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected, resonant inductance L
rone end and power switch pipe V
21source electrode and V
23drain electrode connect, resonant inductance L
rthe other end and resonant capacitance C
rone end to be in series composition series resonance groove;
High-frequency isolation transformer is by two former limit winding N
1, N
2with two vice-side winding N
3, N
4composition, two former limit winding N
1, N
2the number of turn different but polarity is identical, two vice-side winding N
3, N
4the identical but polarity of the number of turn contrary, former limit winding N
1same Name of Ends and first prime current mode full-bridge circuit in power switch pipe V
11source electrode connect, N
1different name end and prime first current mode full-bridge circuit in power switch pipe V
12source electrode connect; Former limit winding N
2same Name of Ends and the resonant capacitance C of series resonant full bridge translation circuit of second prime input port
rthe other end connect, N
2different name end and the power switch pipe V of series resonant full bridge translation circuit of second prime input port
22source electrode connect; High-frequency isolation transformer vice-side winding N
3, N
4same Name of Ends be connected with rear class rectification circuit with different name end;
Rear class rectification circuit adopts four power transistor V with anti-paralleled diode in body
31, V
32, V
33, V
34the frequency converter structure combined, power tube V
31emitter and power tube V
32emitter connect, rear class power tube V
33emitter and power tube V
34emitter connect, rear class power tube V
31collector electrode and a secondary N of high-frequency isolation transformer
3same Name of Ends connect, rear class power tube V
33collector electrode and a secondary N of high-frequency isolation transformer
3different name end connect, rear class power tube V
34collector electrode and a secondary N of high-frequency isolation transformer
4same Name of Ends connect, rear class power tube V
32collector electrode and a secondary N of high frequency transformer
4different name end connect, output filter capacitor C
1with load R
1be in parallel, its one end and rear class power tube V
31and V
32emitter connect; The other end and rear class power tube V
33and V
34emitter connect.
2. an integrated current transformer is isolated in dual input entirely, is made up of, it is characterized in that the series resonant full bridge translation circuit of first prime current mode full-bridge circuit, second prime input port, high-frequency isolation transformer and rear class rectification circuit:
First prime current mode full-bridge circuit adopts the power switch pipe V with anti-paralleled diode in body
11, V
12, V
13, V
14with the power diode D of series connection separately
1, D
2, D
3, D
4composition has the current source type full bridge inverter of reverse voltage blocking ability, direct-current input power supplying V
dC1positive pole connect input inductance L
1one end, input inductance L
1the other end connect power diode D
1and D
2anode, power diode D
1negative electrode connect power switch pipe V
11drain electrode, power diode D
2negative electrode connect power switch pipe V
12drain electrode, power switch pipe V
11source electrode connect power diode D
3anode, power switch pipe V
12source electrode connect power diode D
4anode, power diode D
3negative electrode connect power switch pipe V
13drain electrode, power diode D
4negative electrode connect power switch pipe V
14drain electrode, power switch pipe V
13and V
14source electrode connect direct-current input power supplying V
dC1negative pole;
The series resonant full bridge translation circuit of second prime input port adopts by the power switch pipe V with anti-paralleled diode in body
21, V
22, V
23, V
24the full bridge structure of composition, direct-current input power supplying V
dC2positive pole connect power switch pipe V
21and V
22drain electrode, power switch pipe V
21source electrode connect power switch pipe V
23drain electrode, power switch pipe V
22source electrode connect power switch pipe V
24drain electrode, direct-current input power supplying V
dC2negative pole and power switch pipe V
23and V
24source electrode be connected, resonant inductance L
rone end and power switch pipe V
21source electrode and V
23drain electrode connect, resonant inductance L
rthe other end and resonant capacitance C
rone end to be in series composition series resonance groove;
High-frequency isolation transformer is by two former limit winding N
1, N
2with a vice-side winding N
3composition, two former limit winding N
1, N
2the number of turn different but polarity is identical, former limit winding N
1same Name of Ends and first prime current mode full-bridge circuit in power switch pipe V
11source electrode connect, N
1different name end and prime first current mode full-bridge circuit in power switch pipe V
12source electrode connect; Former limit winding N
2same Name of Ends and the resonant capacitance C of series resonant full bridge translation circuit of second prime input port
rthe other end connect, N
2different name end and the power switch pipe V of series resonant full bridge translation circuit of second prime input port
22source electrode connect; The vice-side winding N of high-frequency isolation transformer
3same Name of Ends be connected with rear class rectification circuit with different name end;
The rectification circuit of rear class adopts four power transistor V with anti-paralleled diode in body
51, V
52, V
53, V
54composition full-bridge circuit structure, rear class power switch pipe V
51emitter and power switch pipe V
53collector electrode connect, and with the secondary N of high frequency transformer
3same Name of Ends connect, rear class power switch pipe V
52emitter and power switch pipe V
54collector electrode connect, and with the secondary N of high frequency transformer
3different name end connect, output filter capacitor C
3with load R
3be in parallel, its one end and rear class power tube V
51and V
52collector electrode connect; The other end and rear class power tube V
53and V
54emitter connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179727.1A CN102723873B (en) | 2012-06-01 | 2012-06-01 | Dual-input full-isolation integrated current transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210179727.1A CN102723873B (en) | 2012-06-01 | 2012-06-01 | Dual-input full-isolation integrated current transformer |
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| Publication Number | Publication Date |
|---|---|
| CN102723873A CN102723873A (en) | 2012-10-10 |
| CN102723873B true CN102723873B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210179727.1A Expired - Fee Related CN102723873B (en) | 2012-06-01 | 2012-06-01 | Dual-input full-isolation integrated current transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103731060A (en) * | 2014-01-17 | 2014-04-16 | 保定四方三伊电气有限公司 | High-frequency inverter power unit and high-frequency treatment method |
| CN103904905A (en) * | 2014-04-18 | 2014-07-02 | 燕山大学 | Isolated type three-port two-way DC/DC converter |
| CN104393783A (en) * | 2014-11-21 | 2015-03-04 | 广东工业大学 | Dielectric barrier discharge type ozone generator power supply with constant peak voltage and current |
| CN107482917B (en) * | 2016-06-08 | 2020-11-24 | 马小林 | Integrated three-port power converter |
| CN107040143B (en) * | 2017-06-12 | 2023-08-08 | 湖南晟和电源科技有限公司 | Power supply circuit, power supply method and metering instrument manufactured by same |
| CN110040028A (en) * | 2019-04-15 | 2019-07-23 | 创驱（上海）新能源科技有限公司 | A kind of integral control circuit of Vehicular charger and DCDC conversion equipment |
| CN110429824A (en) * | 2019-08-08 | 2019-11-08 | 东北大学 | A kind of two-way cascade input cascaded-output DC-DC transformation topology structure |
| CN111355398B (en) * | 2020-03-19 | 2023-02-28 | 深圳市能效电气技术有限公司 | Bidirectional vehicle-mounted charger circuit integrated with DC/DC converter |
| CN111800015B (en) * | 2020-07-13 | 2024-04-05 | 中南大学 | DC transformer for new energy DC grid connection and control method thereof |
| CN113037092A (en) * | 2021-03-15 | 2021-06-25 | 天津理工大学 | Three-port bidirectional DC-DC converter and control method thereof |
| CN113824334B (en) * | 2021-09-14 | 2024-03-15 | 武汉大学 | AC/DC/DC composite three-port conversion circuit and inverter |
| CN114244135A (en) * | 2021-12-18 | 2022-03-25 | 北京动力源科技股份有限公司 | High-power high-current isolation DC-DC circuit |
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| US8189351B2 (en) * | 2007-02-23 | 2012-05-29 | Astec International Limited | Multi-input DC/DC converters with zero-current switching |
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|---|---|
| CN102723873A (en) | 2012-10-10 |
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