CN105720819B - A kind of two-way resonance converter - Google Patents
A kind of two-way resonance converter Download PDFInfo
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- CN105720819B CN105720819B CN201410738629.6A CN201410738629A CN105720819B CN 105720819 B CN105720819 B CN 105720819B CN 201410738629 A CN201410738629 A CN 201410738629A CN 105720819 B CN105720819 B CN 105720819B
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Abstract
The present invention provides a kind of two-way resonance converters,Using scheme provided by the invention,The first change-over switch and inductance subelement are added in the resonant element of original two-way resonance converter,In the energy back flowing of two-way resonance converter,First change-over switch is closed,By resonant inductance,Resonant capacitance,The first winding and inductance subelement of transformer form resonator,By the working frequency for controlling two-way resonance converter,Gain is more than 1 when can realize energy back flowing,And,Due to the addition of inductance subelement,The sensibility reciprocal of first winding of transformer can do larger,Accordingly,The sensibility reciprocal of second winding of transformer can also be made larger,So as to reduce the exciting current of transformer,Reduce the power attenuation of the power tube in the second copped wave unit,Finally reduce the power attenuation of the two-way resonance converter,Improve the efficiency of the two-way resonance converter.
Description
Technical field
The present invention relates to power electronics field more particularly to a kind of two-way resonance converters.
Background technology
Two-way resonance converter with its it is efficient the characteristics of be widely used in DC/DC conversions, the transformation of existing two-way resonance
As shown in Figure 1, including sequentially connected first copped wave unit, resonant element and the second copped wave unit, which converts device
Device can realize the two-way flow of energy, and energy forward flow refers to energy from the first copped wave unit to the second copped wave cell orientation
It transmits, energy back flowing refers to that energy is transmitted from the second copped wave unit to the first copped wave cell orientation.
In the energy back flowing of two-way resonance converter, the first voltage input V1 in the two-way resonance converter and the
One copped wave unit is equivalent to load, and the first winding of resonant inductance Lr, resonant capacitance Cr, transformer T1 in resonant element are formed
Resonator, has SRC (Series Resonance Converter, series resonant circuit) characteristic, and gain is less than 1；And
It when energy back flows, is inputted under high-pressure situations to the second copped wave unit, flows through the electricity of the power tube in the second copped wave unit
Flow larger, the loss for leading to power tube in the second copped wave unit is larger, so as to cause the power attenuation of two-way resonance converter
It is larger.
Invention content
The present invention provides a kind of two-way resonance converter, to solve two-way resonance converter in the prior art
Energy back flow when, the two-way resonance transducer gain can not be more than 1 and larger power attenuation the problem of.
The present invention provides a kind of two-way resonance converter, the controlled resonant converter includes：
First copped wave unit, the first terminals and the second terminals of the first copped wave unit respectively with the first voltage input
Both ends be connected；
Second copped wave unit, the first terminals and the second terminals of the second copped wave unit respectively with the second voltage input
Both ends be connected；
Resonant element, including resonant inductance, resonant capacitance, transformer, the first change-over switch and inductance subelement, the electricity
Feeling subelement has the first terminals and the second terminals；Wherein：
The resonant inductance and a resonant capacitance branch in series；One end of the branch and the transformer
One end of the first winding be connected；
Second terminals of the inductance subelement are connected by first change-over switch with the other end of the branch,
First terminals of the terminals as the resonant element after being connected connect the third terminals of the first copped wave unit；
First terminals of the inductance subelement are connected with the other end of the first winding of the transformer, after being connected
Second terminals of the terminals as the resonant element connect the 4th terminals of the first copped wave unit；
Third terminals of the one end of second winding of the transformer as the resonant element, connection described second are cut
The third terminals of wave unit；
Fourth terminals of the other end of second winding of the transformer as the resonant element, connection described second
4th terminals of copped wave unit.
The present invention has the beneficial effect that：
In scheme provided in an embodiment of the present invention, when the energy back of two-way resonance converter flows, the first change-over switch
It is closed, resonator is formed by the first winding of inductance subelement and resonant inductance, resonant capacitance and transformer, no longer with SRC
Characteristic by controlling the working frequency of two-way resonance converter, can realize the energy back flowing of the two-way resonance converter
When gain be more than 1, also, due to the addition of inductance subelement, the sensibility reciprocal of the first winding of transformer can be made larger, phase
It answers, the sensibility reciprocal of the second winding of transformer can also be made exciting current that is larger, therefore can reducing transformer, so as to subtract
The power attenuation of power tube in small second copped wave unit reduces the power attenuation of the two-way resonance converter, improve
The efficiency of the reversible transducer.
Description of the drawings
Fig. 1 is the schematic diagram of existing two-way resonance converter；
Fig. 2 is one of schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Equivalent circuit diagram when Fig. 3 is the two-way resonance converter reverse operation that the embodiment of the present invention 1 provides；
Fig. 4 is the two of the schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Equivalent circuit diagram when Fig. 5 is the two-way resonance converter forward direction work that the embodiment of the present invention 1 provides；
Fig. 6 is the three of the schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Fig. 7 is the four of the schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Fig. 8 is the five of the schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Fig. 9 is the six of the schematic diagram of two-way resonance converter that the embodiment of the present invention 1 provides；
Figure 10 is one of schematic diagram of two-way resonance converter that the embodiment of the present invention 2 provides；
Figure 11 is the two of the schematic diagram of two-way resonance converter that the embodiment of the present invention 2 provides；
Figure 12 is one of schematic diagram of two-way resonance converter that the embodiment of the present invention 3 provides；
Figure 13 is the two of the schematic diagram of two-way resonance converter that the embodiment of the present invention 3 provides；
Figure 14 is the schematic diagram of two-way resonance converter that the embodiment of the present invention 4 provides；
Figure 15 is one of schematic diagram of two-way resonance converter that the embodiment of the present invention 5 provides；
Figure 16 is the two of the schematic diagram of two-way resonance converter that the embodiment of the present invention 5 provides.
Specific embodiment
An embodiment of the present invention provides a kind of two-way resonance converter, below in conjunction with Figure of description to the preferred of the present invention
Embodiment illustrates, it should be understood that preferred embodiment described herein is merely to illustrate and explain the present invention, and is not used to
Limit the present invention.And in the absence of conflict, the feature in the embodiment and embodiment in the application can be combined with each other.
Embodiment 1：
The embodiment of the present invention 1 provides a kind of two-way resonance converter, as shown in Fig. 2, the two-way resonance converter includes
First copped wave unit, the second copped wave unit and resonant element, wherein：
Both ends of the first terminals and the second terminals of first copped wave unit respectively with the first voltage input V1 are connected；Second
Both ends of the first terminals and the second terminals of copped wave unit respectively with the second voltage input V2 are connected；
Resonant element, it is single including resonant inductance Lr, resonant capacitance Cr, transformer T1, the first change-over switch ZK1 and inductance
Member, the inductance subelement have the first terminals and the second terminals；Wherein：
A resonant inductance Lr and resonant capacitance Cr branch in series；One end of the branch and the first of transformer T1 around
One end of group is connected；
Second terminals of inductance subelement are connected by the first change-over switch ZK1 with the other end of above-mentioned branch, are connected
First terminals of the terminals afterwards as resonant element connect the third terminals of the first copped wave unit；
First terminals of inductance subelement are connected with the other end of the first winding of transformer T1, the terminals after being connected
As the second terminals of resonant element, the 4th terminals of the first copped wave unit are connected；
Third terminals of the one end of the second winding of transformer T1 as resonant element, the of the second copped wave unit of connection
Three terminals；
Fourth terminals of the other end of the second winding of transformer T1 as resonant element, the second copped wave unit of connection
4th terminals.
In two-way resonance converter shown in Fig. 2, when the first voltage input V1 makees as power supply, the second voltage input V2
For load when, i.e., energy forward flow when, the first change-over switch ZK1 disconnect；At this point, the operation principle of the two-way resonance converter
Identical with operation principle during two-way resonance converter energy forward flow shown in FIG. 1, details are not described herein.
In two-way resonance converter shown in Fig. 2, when the second voltage input V2 makees as power supply, the first voltage input V1
For load when, i.e., energy reverse flow when, the first change-over switch ZK1 be closed；Assuming that the first terminals of inductance subelement and
Inductance between two terminals is Lm1, at this point, equivalent circuit as shown in Figure 3, inductance Lm1, resonant inductance Lr, resonant capacitance
The first winding of Cr and transformer T1 forms resonator, controls the working frequency of two-way resonance converter, can control resonance list
The output voltage of member allows the gain G of two-way resonance converter to be more than 1；Also, due to the addition of inductance Lm1, transformer T1
The sensibility reciprocal of the first winding can be made larger, correspondingly, the sensibility reciprocal of the second winding of transformer T1 can also be made larger, because
This can reduce the exciting current of transformer T1, so as to reduce the power attenuation of the power tube in the second copped wave unit, that is, subtract
The small power attenuation of the two-way resonance converter improves the efficiency of two-way resonance converter.
Preferably, above-mentioned resonant element can also include the second change-over switch ZK2, above-mentioned inductance subelement can also have
Third terminals, as shown in Figure 4：
The third terminals of inductance subelement are connected by the second change-over switch ZK2 with specified wiring node, the specified section
Wiring node between the first winding of the point branch in series for resonant inductance Lr and resonant capacitance Cr and transformer T1.
In two-way resonance converter shown in Fig. 4, when the first voltage input V1 makees as power supply, the second voltage input V2
For load when, i.e., energy forward flow when, the first change-over switch ZK1 disconnect, the second change-over switch ZK2 be closed；Assuming that inductance is sub
Inductance between first terminals of unit and third terminals is Lm2, at this point, equivalent circuit as shown in Figure 5, inductance Lm2,
The first winding of resonant inductance Lr, resonant capacitance Cr and transformer T1 form resonator, compared with the prior art in the resonance list
Inductance Lm2, and the first winding parallel of inductance Lm2 and transformer T1, the sense of the first winding of transformer are increased in member
Amount can be made exciting current that is larger, therefore can reducing transformer T1, so as to keep the two-way resonance converter high
The characteristics of effect.
Preferably, the sensibility reciprocal between the first terminals of above-mentioned inductance subelement and third terminals is less than above-mentioned transformer
The sensibility reciprocal of the first winding of T1.
The sensibility reciprocal of first winding of the sensibility reciprocal less than above-mentioned transformer T1 between first terminals and third terminals is set,
The sensibility reciprocal of the first windings of transformer T1 is larger, the exciting current of transformer T1 when can reduce energy forward flow, so as to
The characteristics of to keep the two-way resonance converter efficient.
In two-way resonance converter shown in Fig. 4, when the second voltage input V2 makees as power supply, the first voltage input V1
For load when, i.e., energy reverse flow when, the first change-over switch ZK1 be closed, the second change-over switch ZK2 disconnect；At this point, this is two-way
The operation principle when operation principle of controlled resonant converter is flowed with two-way resonance converter energy back shown in Fig. 2 is identical,
This is repeated no more.
Further, the inductance subelement in above-mentioned resonant element specifically can be there are many way of realization, and the present invention is not done
It is specific to limit.
In a specific embodiment, which can be with as shown in fig. 6, including the first inductance L1 and the second inductance
L2, one end of the first inductance L1 are connected with one end of the second inductance L2, be connected after terminals as inductance subelement first
Terminals, the second terminals of the other end of the first inductance L1 as inductance subelement, the other end of the second inductance L2 is as electricity
Feel the third terminals of subelement.
In another specific embodiment, which can also be as shown in fig. 7, comprises the first inductance L1 and second
First terminals of the one end of inductance L2, the second inductance L2 as inductance subelement；One end of first inductance L1 is as inductance
Second terminals of unit；The other end of the other end of first inductance L1 and the second inductance L2 are connected, and the terminals after being connected are made
Third terminals for inductance subelement.
The wherein sensibility reciprocal value of the first inductance L1 and the second inductance L2 can be identical, can not also be identical, and the value of sensibility reciprocal can
To be determined according to specific application scenarios.
Further, the first inductance L1 and the second inductance L2 are not limited to two independent inductance, or a coupling
Two coils of inductance, as shown in Figure 8 and Figure 9.
The two-way resonance converter that the embodiment of the present invention 1 provides, the first copped wave unit can be but be not limited to full-bridge, symmetrical
The chopper circuit of half-bridge or asymmetrical half-bridge, the second copped wave unit can be but be not limited to full-bridge, symmetrical half bridge or asymmetry partly
Chopper circuit of bridge etc..
Further, it on the basis of above-described embodiment 1, can also be referred in two-way resonance converter there are many deforming
Following embodiments.
Embodiment 2：
The embodiment of the present invention 2 provides a kind of two-way resonance converter, and the two-way resonance converter is real compared to of the invention
The two-way resonance converter of the offer of example 1 is provided, anti-bias magnetocapacitance C0, the first control controls of switch K1 and second are further included in resonant element
System switch K2, as shown in Figure 10 and Figure 11, wherein：
One end phase of one end of the second winding of transformer T1, one end of anti-bias magnetocapacitance C0 and the first control switch K1
Even, the other end of the other end of anti-bias magnetocapacitance C0 and the first control switch K1 are connected, and the wiring node after being connected is as resonance
The third terminals of unit；
One end of the other end of the second winding of transformer T1 and the second control switch K2 are connected, the second control switch K2's
Fourth terminals of the other end as resonant element.
The two-way resonance converter that the embodiment of the present invention 2 provides, the first copped wave unit can be but be not limited to full-bridge, symmetrical
The chopper circuit of half-bridge or asymmetrical half-bridge, the chopper circuit that the second copped wave unit can be but be not limited to half-bridge etc..
If the second copped wave unit is the chopper circuit of half-bridge, when the first voltage input V1 is as power supply, the second voltage input
When V2 is as load, i.e., in the energy forward flow of the two-way resonance converter, the first change-over switch ZK1 is disconnected, second turn
It changes switch ZK2 to be closed, the first control switch K1 is closed, and the second control switch K2 is closed；The first control controls of switch K1 and second
Switch K2 provide access for the rectification circuit in the second copped wave unit.
When the second voltage input V2 is used as load as power supply, the first voltage input V1, i.e., converted in the two-way resonance
During the energy back flowing of device, the first change-over switch ZK1 is closed, and the second change-over switch ZK2 is disconnected, and the first control switch K1 breaks
Open, second control switch K2 disconnect, two-way resonance converter shown in Fig. 10 be utilized the second winding of transformer T1 on around
Group provides access for the inverter circuit of the second copped wave unit, and the of transformer T1 is utilized in the two-way resonance converter shown in Figure 11
The lower winding of two windings provides access for the inverter circuit of the second copped wave unit.Wherein, the second winding of transformer T1 is with center
Tap is boundary, and the winding of top is upper winding, and following winding is lower winding.
Embodiment 3：
The embodiment of the present invention 3 provides a kind of two-way resonance converter, and the two-way resonance converter is real compared to of the invention
The two-way resonance converter of the offer of example 1 is provided, anti-bias magnetocapacitance C0, the first control controls of switch K1 and second are further included in resonant element
System switch K2, as shown in Figure 12 and Figure 13, wherein：
One end of the centre cap of the second winding of transformer T1, one end of the first control switch K1 and anti-bias magnetocapacitance C0
It is connected, the other end of the other end of anti-bias magnetocapacitance C0 and the first control switch K1 are connected, and the wiring node after being connected is as zero
Line terminals；
Third terminals of the one end of the second winding of transformer T1 as resonant element, the other end and the second control switch
One end of K2 is connected；Fourth terminals of the other end of second control switch K2 as resonant element.
The embodiment of the present invention 3 provide two-way resonance converter in the first copped wave unit can be but be not limited to full-bridge,
The chopper circuit of symmetrical half bridge or asymmetrical half-bridge, the chopper circuit that the second copped wave unit can be but be not limited to half-bridge etc..
If the second copped wave unit is the chopper circuit of half-bridge, when the first voltage input V1 is as power supply, the second voltage input
When V2 is as load, i.e., in the energy forward flow of the two-way resonance converter, the first change-over switch ZK1 is disconnected, second turn
It changes switch ZK2 to be closed, the first control switch K1 is closed, and the second control switch K2 is closed；The first control controls of switch K1 and second
Switch K2 provide access for the rectification circuit of the second copped wave unit.
When the second voltage input V2 is used as load as power supply, the first voltage input V1, i.e., converted in the two-way resonance
During the energy back flowing of device, the first change-over switch ZK1 is closed, and the second change-over switch ZK2 is disconnected, and the first control switch K1 breaks
It opens, the second control switch K2 is disconnected；Two-way resonance converter shown in Figure 12 be utilized the second winding of transformer T1 on around
Group provides access for the inverter circuit of the second copped wave unit, and the of transformer T1 is utilized in the two-way resonance converter shown in Figure 13
The lower winding of two windings provides access for the inverter circuit of the second copped wave unit.
The two-way resonance converter that the embodiment of the present invention 2,3 provides adds anti-bias magnetocapacitance C0 in resonant element, at this
During the energy back flowing of two-way resonance converter, the magnetic saturation of transformer T1 can be prevented.
Embodiment 4：
The embodiment of the present invention 4 provides a kind of two-way resonance converter, and the two-way resonance converter is real compared to of the invention
The two-way resonance converter of the offer of example 1 is provided, zero line control switch LK is further included in resonant element, as shown in figure 14, wherein：
One end of zero line control switch LK is connected with transformer T1 centre caps, the other end conduct of zero line control switch LK
Zero curve terminals.
The two-way resonance converter that the embodiment of the present invention 4 provides, the first copped wave unit can be but be not limited to full-bridge, symmetrical
The chopper circuit of half-bridge or asymmetrical half-bridge, the second copped wave unit be specially include the first power tube Q21, the second power tube Q22,
The full-bridge chopper circuit of third power tube Q23 and the 4th power tube Q24.
If the second copped wave unit is the chopper circuit of full-bridge, when the first voltage input V1 is as power supply, the second voltage input
When V2 is as load, i.e., in the energy forward flow of the two-way resonance converter, the first change-over switch ZK1 is disconnected, second turn
It changes switch ZK2 to be closed, zero line control switch LK is closed, and zero line control switch LK provides logical for the rectification circuit of the second copped wave unit
Road.
When the second voltage input V2 is used as load as power supply, the first voltage input V1, i.e., converted in the two-way resonance
During the energy back flowing of device, the first change-over switch ZK1 is closed, and the second change-over switch ZK2 is disconnected, and zero line control switch LK breaks
It opens, the resonant element of the two-way resonance converter can be powered by double-bus.
Embodiment 5：
The embodiment of the present invention 5 provides a kind of two-way resonance converter, and the two-way resonance converter is real compared to of the invention
The two-way resonance converter of the offer of example 1 is provided, the first control switch K1 is further included in resonant element, as shown in Figure 15 and Figure 16,
In：
Third terminals of the one end of the second winding of transformer T1 as resonant element, the other end and the first control switch
One end of K1 is connected, and the first control switchs fourth terminals of the other end of K1 as resonant element.
The two-way resonance converter that the embodiment of the present invention 5 provides, the first copped wave unit can be but be not limited to full-bridge, right
Claim the chopper circuit of half-bridge or asymmetrical half-bridge, chopper circuit that the second copped wave unit can be but be not limited to half-bridge etc..
For example, the second copped wave unit in the two-way resonance converter can specifically include the first power tube Q21, the second work(
Rate pipe Q22, the first diode D21, the second diode D22, the first anti-bias magnetocapacitance C1, the controls of the second anti-bias magnetocapacitance C2 and second
System switch K2, wherein：
Branch, the first diode D21 and the second diode in series first power tube Q21 and the second power tube Q22
Branch in series D22, the first anti-bias magnetocapacitance C1 and second prevent anti-bias magnetocapacitance C2 three branches of branch in series simultaneously
Connection, the both ends after parallel connection are respectively the first terminals and the second terminals of the second copped wave unit；First anti-bias magnetocapacitance C1 and
One end of wiring node, the second control switch between second anti-bias magnetocapacitance C2 and the centre cap of the second winding of transformer
It is connected, the other end of the second control switch K2 is as zero curve terminals；Between first power tube Q21 and the second power tube Q22
Third terminals of the wiring node as the second copped wave unit；Wiring section between first diode D21 and the second diode D22
Fourth terminals of the point as the second copped wave unit.
At this point, when the first voltage input V1 is used as load as power supply, the second voltage input V2, i.e., in the two-way resonance
During the energy forward flow of converter, the first change-over switch ZK1 is disconnected, and the second change-over switch ZK2 is closed, the first control switch K1
It is closed, the second control switch K2 is closed；First control switch provides access for the rectification circuit in the second copped wave unit.
When the second voltage input V2 is used as load as power supply, the first voltage input V1, i.e., converted in the two-way resonance
During the energy back flowing of device, the first change-over switch ZK1 is closed, and the second change-over switch ZK2 is disconnected, and the first control switch K1 breaks
It opens, the second control switch K2 is disconnected；Two-way resonance converter shown in figure 15 be utilized the second winding of transformer T1 on around
Group provides access for the inverter circuit of the second copped wave unit, and the of transformer T1 is utilized in the two-way resonance converter shown in Figure 16
The lower winding of two windings provides access for the inverter circuit of the second copped wave unit.
The first anti-bias anti-bias magnetocapacitance C2 of magnetocapacitance C1 and second are added in the second copped wave unit, transformation can be prevented
The magnetic saturation of device T1.
It only illustrates in partial resonance unit, the first copped wave unit and the second copped wave unit in the above-described embodiments
Circuit structure, certainly it should be understood by those skilled in the art that not limiting resonant element, the first copped wave list in the embodiment of the present invention
The concrete structure of member and the second copped wave unit, as long as the letter made based on the circuit structure provided in the embodiment of the present invention
Circuit structure obtained from single change is also in institute of embodiment of the present invention protection domain.
It is further to note that capacitance, inductance, the selection of power tube or above-mentioned device in embodiments of the present invention
Model selection can carry out different option and installment according to different application scenarios.
In conclusion using two-way resonance converter provided in an embodiment of the present invention, gain can be more than 1, power attenuation
Smaller, efficiency is higher.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (6)
1. a kind of two-way resonance converter, which is characterized in that including：
Inversion unit, the both ends of the first terminals and the second terminals of the inversion unit respectively with the first voltage input are connected；
Rectification unit, the both ends of the first terminals and the second terminals of the rectification unit respectively with the second voltage input are connected；
Resonant element, including resonant inductance, resonant capacitance, transformer, the first change-over switch and inductance subelement, inductance
Unit has the first terminals and the second terminals；Wherein：
The resonant inductance and a resonant capacitance branch in series；One end of the branch and the of the transformer
One end of one winding is connected；
Second terminals of the inductance subelement are connected by first change-over switch with the other end of the branch, are connected
First terminals of the terminals afterwards as the resonant element connect the third terminals of the inversion unit；
First terminals of the inductance subelement are connected with the other end of the first winding of the transformer, the wiring after being connected
The second terminals as the resonant element are held, connect the 4th terminals of the inversion unit；
Third terminals of the one end of second winding of the transformer as the resonant element, connect the rectification unit
Third terminals；
Fourth terminals of the other end of second winding of the transformer as the resonant element, connect the rectification unit
The 4th terminals；
The resonant element further includes anti-bias magnetocapacitance, the first control switch and the second control switch, wherein：The transformer
One end of second winding, the anti-bias magnetocapacitance one end with described first control switch one end be connected；The anti-bias magnetoelectricity
The other end of appearance is connected with the other end of the described first control switch, the wiring node after being connected as the resonant element the
Three terminals；The other end of second winding of the transformer is connected with one end of the described second control switch, second control
Make fourth terminals of the other end of switch as the resonant element；Alternatively,
The resonant element further includes anti-bias magnetocapacitance, the first control switch and the second control switch, wherein：The transformer
One end that the centre cap of second winding, first control switch is connected with one end of the anti-bias magnetocapacitance；It is described anti-bias
The other end of magnetocapacitance is connected with the other end of the described first control switch, and the wiring node after being connected is as zero curve terminals；
Third terminals of the one end of second winding of the transformer as the resonant element, the other end and second control are opened
One end of pass is connected；Fourth terminals of the other end of the second control switch as the resonant element；Alternatively,
The resonant element further includes the first control switch, wherein：One end of second winding of the transformer is as described humorous
Shake the third terminals of unit, and the other end is connected with one end of the described first control switch, the first control switch it is another
Hold the 4th terminals as the resonant element；The rectification unit specifically includes the first power tube, the second power tube, first
Diode, the second diode, the first anti-bias magnetocapacitance, the second anti-bias magnetocapacitance and the second control switch, wherein：First work(
The branch that rate pipe and second power tube branch in series, first diode and second Diode series are formed
Road, the first anti-bias magnetocapacitance and described second prevent anti-bias magnetocapacitance three branch circuit parallel connection of branch in series, after in parallel
Both ends are respectively the first terminals and the second terminals of the rectification unit；The first anti-bias magnetocapacitance and described second is prevented
One end of wiring node, the second control switch between magnetic bias capacitance and the centre cap of the second winding of the transformer
It is connected, the other end of the second control switch is as zero curve terminals；First power tube and second power tube it
Between third terminals of the wiring node as the rectification unit；Between first diode and second diode
Fourth terminals of the wiring node as the rectification unit.
2. controlled resonant converter as described in claim 1, which is characterized in that the resonant element further includes the second change-over switch,
The inductance subelement also has third terminals；
The third terminals of the inductance subelement are connected by second change-over switch with specified wiring node, described specified
Wiring node is between the resonant inductance and the first winding of resonant capacitance branch in series and the transformer
Wiring node.
3. controlled resonant converter as claimed in claim 2, which is characterized in that the first terminals and third of the inductance subelement
Sensibility reciprocal between terminals is less than the sensibility reciprocal of the first winding of the transformer.
4. controlled resonant converter as claimed in claim 2, which is characterized in that the inductance subelement includes the first inductance and second
Inductance；
One end of first inductance is connected with one end of second inductance, and the terminals after being connected are single as inductance
First terminals of member, the second terminals of the other end of first inductance as the inductance subelement, second electricity
Third terminals of the other end of sense as the inductance subelement；Or
First terminals of the one end of second inductance as the inductance subelement；One end of first inductance is as institute
State the second terminals of inductance subelement；The other end of first inductance is connected with the other end of second inductance, is connected
Third terminals of the terminals afterwards as the inductance subelement.
5. controlled resonant converter as claimed in claim 4, which is characterized in that first inductance and the second inductance are coupling inductance
Two coils.
6. the controlled resonant converter as described in Claims 1 to 5 is any, which is characterized in that
The inversion unit is half-bridge inversion circuit or full bridge inverter.
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| CN202750023U (en) * | 2012-07-31 | 2013-02-20 | 美国跃华国际公司 | Current type single-stage isolation high-frequency switch power supply without alternating current / direct current (AC/DC) rectifier bridge |
| CN104011986A (en) * | 2011-12-21 | 2014-08-27 | 伊顿工业公司 | LLC bidirectional resonant converter and method of controlling |
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| CN104011986A (en) * | 2011-12-21 | 2014-08-27 | 伊顿工业公司 | LLC bidirectional resonant converter and method of controlling |
| CN202750023U (en) * | 2012-07-31 | 2013-02-20 | 美国跃华国际公司 | Current type single-stage isolation high-frequency switch power supply without alternating current / direct current (AC/DC) rectifier bridge |
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