CN201286064Y - Voltage converter, positive and negative electric power system - Google Patents

Voltage converter, positive and negative electric power system Download PDF

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Publication number
CN201286064Y
CN201286064Y CNU2008202131233U CN200820213123U CN201286064Y CN 201286064 Y CN201286064 Y CN 201286064Y CN U2008202131233 U CNU2008202131233 U CN U2008202131233U CN 200820213123 U CN200820213123 U CN 200820213123U CN 201286064 Y CN201286064 Y CN 201286064Y
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China
Prior art keywords
electronic switch
positive
negative
voltage changer
translation circuit
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CNU2008202131233U
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Chinese (zh)
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李璞
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies 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 utility model provides a voltage changer and a positive-negative power supply system which are suitable for the field of power supply. The voltage changer comprises a voltage boosting type voltage changer and a voltage reducing type voltage changer, the voltage boosting type voltage changer comprises a positive input terminal, a negative input terminal, a positive output terminal, a negative output terminal, a reference terminal, a converting circuit a first buffer circuit and a second buffer circuit, wherein the first buffer circuit is connected with the negative output terminal or the negative input terminal, the second buffer circuit is connected with the positive output terminal or the positive input terminal. The voltage changer provided by the utility model realizes the soft switching control, improves the working frequency, decreasing the heat consumption and saving the cost by using the buffer circuit.

Description

A kind of voltage changer and positive-negative power system
Technical field
The utility model belongs to field of power supplies, relates in particular to a kind of voltage changer and positive-negative power system.
Background technology
Along with development of electronic technology, the application of switching technique more and more widely can be used the positive-negative power system under many circumstances, i.e. the input and output of voltage changer all are positive-negative powers.
Fig. 1 shows the boost type voltage changer that prior art provides, comprise positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit, translation circuit further comprises: inductance L 1, L2, switch S 1, S2, diode D1, D2 and filter capacitor C1, C2, wherein, inductance L 1 and diode D1 are connected between positive input terminal and the positive output end successively, and inductance L 1 is a first node 100 with the link of diode D1; Switch S 1 is connected between first node 100 and the reference edge, and filter capacitor C1 is connected between positive output end and the reference edge; Inductance L 2 and diode D2 are connected between negative input end and the negative output terminal successively, and inductance L 2 is a Section Point 200 with the link of diode D2; Switch S 2 is connected between Section Point 200 and the reference edge, and filter capacitor C2 is connected between negative output terminal and the reference edge.After passing through inductance L 1 and diode D1, exports the positive voltage of positive input terminal input under the control of switch S 1 by positive output end; After passing through inductance L 2 and diode D2, exports the negative voltage of negative input end input under the control of switch S 2 by negative output terminal.
Fig. 2 shows the buck voltage changer that prior art provides, comprise positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit, translation circuit further comprises: inductance L 3, L4, switch S 3, S4, diode D3, D4 and filter capacitor C3, C4, wherein, switch S 3 and inductance L 3 are connected between positive input terminal and the positive output end successively, and switch S 3 is the 3rd node 300 with the link of inductance L 3; Diode D3 is connected between the 3rd node 300 and the reference edge; Filter capacitor C3 is connected between positive output end and the reference edge; Switch S 4 and inductance L 4 are connected between negative input end and the negative output terminal successively, and switch S 4 is the 4th node 400 with the link of inductance L 4; Diode D4 is connected between the 4th node 400 and the reference edge; Filter capacitor C4 is connected between negative output terminal and the reference edge.The positive voltage of positive input terminal input is exported by positive output end through inductance L 3 backs under the control of switch S 3; The negative voltage of negative input end input is exported by negative output terminal through inductance L 4 backs under the control of switch S 4.
Because boost type voltage changer and buck voltage changer that prior art provides all adopt the hard switching technology to control the voltage of input/output terminal, thereby the operating frequency that causes voltage changer is low, loss is big, voltage transitions efficient is low, and Electro Magnetic Compatibility is poor.
The utility model content
The purpose of the utility model embodiment is to provide a kind of can realize soft switch control and operating frequency height, the voltage changer that cost is low.
The utility model embodiment is achieved in that a kind of boost type voltage changer, comprising: positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit; Described boost type voltage changer also comprises: be connected to first buffer circuit between the first node in described reference edge and the described translation circuit and be connected to described reference edge and described translation circuit in second buffer circuit between the Section Point; Described first buffer circuit also is connected with described negative output terminal or negative input end, and described second buffer circuit also is connected with described positive output end or positive input terminal.
Another purpose of the utility model embodiment is to provide a kind of buck voltage changer, comprises positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit; Described buck voltage changer also comprises: be connected to the 3rd buffer circuit between the 3rd node in described positive input terminal and the described translation circuit and be connected to described negative input end and described translation circuit in the 4th buffer circuit between the 4th node; Described the 3rd buffer circuit also is connected with described negative output terminal or negative input end, and described the 4th buffer circuit also is connected with described positive output end or positive input terminal.
Boost type voltage changer that the utility model provides and buck voltage changer adopt buffer circuit to realize soft switch control, have improved operating frequency, have reduced hear rate, have saved cost.
Description of drawings
Fig. 1 is the circuit diagram of the boost type voltage changer that provides of prior art;
Fig. 2 is the circuit diagram of the buck voltage changer that provides of prior art;
Fig. 3 is the circuit diagram of the boost type voltage changer that provides of the utility model first embodiment;
Fig. 4 is the circuit diagram of the boost type voltage changer that provides of the utility model second embodiment;
Fig. 5 is the circuit diagram of the buck voltage changer that provides of the utility model the 3rd embodiment;
Fig. 6 is the circuit diagram of the buck voltage changer that provides of the utility model the 4th embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The voltage changer that the utility model provides adopts buffer circuit to realize soft switch control, has improved operating frequency, has reduced hear rate, has saved cost.
The voltage changer that the utility model provides comprises boost type voltage changer and buck voltage changer, is mainly used in the positive-negative power system.Fig. 3 shows the circuit diagram of the boost type voltage changer that the utility model first embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows.
The boost type voltage changer comprises positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit, also comprises: be connected to first buffer circuit 10 between the first node 100 in reference edge and the translation circuit and be connected to reference edge and translation circuit in second buffer circuit 20 between the Section Point 200; First buffer circuit 10 also is connected with negative output terminal, and second buffer circuit 20 also is connected with positive output end.
Wherein, translation circuit further comprises: the first energy-storage travelling wave tube L1, the first electronic switch D1, the second electronic switch S1 and the second energy-storage travelling wave tube L2, the 3rd electronic switch D2, quadrielectron switch S 2; Wherein, the first energy-storage travelling wave tube L1 and the first electronic switch D1 are connected between positive input terminal and the positive output end successively, and the link of the first energy-storage travelling wave tube L1 and the first electronic switch D1 is a first node 100; The second electronic switch S1 is connected between first node 100 and the reference edge; The second energy-storage travelling wave tube L2 and the 3rd electronic switch D2 are connected between negative input end and the negative output terminal successively, and the link of the second energy-storage travelling wave tube L2 and the 3rd electronic switch D2 is a Section Point 200; Quadrielectron switch S 2 is connected between Section Point 200 and the reference edge.
As an embodiment of the present utility model, translation circuit also comprise be connected to the first filter capacitor C1 between positive output end and the reference edge and be connected to negative output terminal and reference edge between the second filter capacitor C2.
As an embodiment of the present utility model, the first electronic switch D1 and the 3rd electronic switch D2 can be diode, transistor etc.; And the second electronic switch S1 and quadrielectron switch S 2 are controllable electronic switch.
In the utility model embodiment, first buffer circuit 10 further comprises: the first resonant inductance L5, the first resonant capacitance C5, the 5th electronic switch D5 and the 6th electronic switch D6; The end of the first resonant inductance L5 is connected to reference edge, the other end is connected to first node 100 in the translation circuit by the second electronic switch S1 in the translation circuit, and the other end also is connected to first node 100 in the translation circuit by the 5th electronic switch D5 and the first resonant capacitance C5 successively; The end of the 6th electronic switch D6 is connected to the link A1 that the 5th electronic switch D5 is connected with the first resonant capacitance C5, and the other end of the 6th electronic switch D6 is connected to negative output terminal.
In the utility model embodiment, second buffer circuit 20 further comprises: the second resonant inductance L6, the second resonant capacitance C6, the 7th electronic switch D7 and the 8th electronic switch D8; The end of the second resonant inductance L6 is connected to reference edge, the other end is connected to Section Point 200 in the translation circuit by quadrielectron switch S 2 in the translation circuit, and the other end also is connected to Section Point 200 in the translation circuit by the 7th electronic switch D7 and the second resonant capacitance C6 successively; The end of the 8th electronic switch D8 is connected to the link A2 that the 7th electronic switch D7 is connected with the second resonant capacitance C6, and the other end of the 8th electronic switch D8 is connected to positive output end.
As an embodiment of the present utility model, the 5th electronic switch D5, the 6th electronic switch D6, the 7th electronic switch D7, the 8th electronic switch D8 can be semiconductor device such as diode, transistor, metal-oxide-semiconductor, IGBT pipe.And electronic switch D5, D6 in the utility model, D7, D8 all adopt diode, and simple in structure, cost is low.
Now the operation principle that adopts buffer circuit the boost type voltage changer to be carried out soft switch control is described: when the second electronic switch S1 conducting in conjunction with Fig. 3, because the electric current of the first resonant inductance L5 can not suddenly change, so flow through the increase of starting from scratch of the electric current of the second electronic switch S1, realized the zero current passing of the second electronic switch S1.The first resonant capacitance C5 passes through the second electronic switch S1 simultaneously, the first resonant inductance L5, and the 6th electronic switch D6 and negative output terminal carry out resonant discharge, and the voltage resonance that makes the first resonant capacitance C5 is that the no-voltage shutoff of the second electronic switch S1 is prepared to zero.When the second electronic switch S1 disconnected, because the voltage at the first resonant capacitance C5 two ends is zero, the increase so the voltage at the second electronic switch S1 two ends is started from scratch realized that the no-voltage of the second electronic switch S1 disconnects.The first resonant capacitance C5 is by the first energy-storage travelling wave tube L1 simultaneously, the 5th electronic switch D5, the first resonant inductance L5 carry out resonant charging, when the voltage of the second electronic switch S1 lower end is lower than the voltage of negative output terminal, the 6th electronic switch D6 conducting, with the voltage clamp of the second electronic switch S1 lower end to negative output terminal voltage.
Because negative input end, negative output terminal and second buffer circuit and positive input terminal, positive output end and first buffer circuit are with respect to the reference edge symmetry.Therefore, the operation principle on both sides is identical.In like manner, can realize that the zero current passing of quadrielectron switch S 2 and no-voltage disconnect; And when the 8th electronic switch D8 conducting, with the voltage clamp of quadrielectron switch S 2 upper ends to positive output end voltage.
Fig. 4 shows the circuit diagram of the boost type voltage changer that the utility model second embodiment provides, the difference of the boost type voltage changer that provides with first embodiment is, be connected to that first buffer circuit 10 between the first node 100 also is connected with negative input end in reference edge and the translation circuit, be connected to that second buffer circuit 20 between the Section Point 200 also is connected with positive input terminal in reference edge and the translation circuit; Promptly the end of the 6th electronic switch D6 is connected to the link A1 that the 5th electronic switch D5 is connected with the first resonant capacitance C5, and the other end of the 6th electronic switch D6 is connected to negative input end; The end of the 8th electronic switch D8 is connected to the link A2 that the 7th electronic switch D7 is connected with the second resonant capacitance C6, and the other end of the 8th electronic switch D8 is connected to positive input terminal.Like this can be as required carry out clamper with the input voltage of voltage changer.
Fig. 5 shows the circuit diagram of the buck voltage changer that the utility model the 3rd embodiment provides, and for convenience of explanation, only shows the part relevant with the utility model, and details are as follows.
The buck voltage changer comprises positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit; Also comprise: be connected to the 3rd buffer circuit 30 between the 3rd node 300 in positive input terminal and the translation circuit and be connected to negative input end and translation circuit in the 4th buffer circuit 40 between the 4th node 400; The 3rd buffer circuit 30 also is connected with negative output terminal, and the 4th buffer circuit 40 also is connected with positive output end.
Wherein, translation circuit comprises: the 3rd energy-storage travelling wave tube L3, the 9th electronic switch S3, the tenth electronic switch D3 and the 4th energy-storage travelling wave tube L4, the 11 electronic switch S4, the 12 electronic switch D4; The 9th electronic switch S3 and the 3rd energy-storage travelling wave tube L3 are connected between positive input terminal and the positive output end successively, and the link of the 9th electronic switch S3 and the 3rd energy-storage travelling wave tube L3 is the 3rd node 300; The tenth electronic switch D3 is connected between the 3rd node 300 and the reference edge; The 11 electronic switch S4 and the 4th energy-storage travelling wave tube L4 are connected between negative input end and the negative output terminal successively, and the link of the 11 electronic switch S4 and the 4th energy-storage travelling wave tube L4 is the 4th node 400; The 12 electronic switch D4 is connected between the 4th node 400 and the reference edge.
As an embodiment of the present utility model, translation circuit also comprise be connected to the first filter capacitor C3 between positive output end and the reference edge and be connected to negative output terminal and reference edge between the second filter capacitor C4.
In the utility model embodiment, the 3rd buffer circuit 30 further comprises: the 3rd resonant inductance L7, the 3rd resonant capacitance C7, the 13 electronic switch D9 and the tenth quadrielectron switch D10; The end of the 3rd resonant inductance L7 is connected to the 3rd node 300 in the translation circuit, the other end is connected to positive input terminal by the 9th electronic switch S3 in the translation circuit, and the other end also is connected to positive input terminal by the 13 electronic switch D9 and the 3rd resonant capacitance C7 successively; The end of the tenth quadrielectron switch D10 is connected to the link A3 that the 13 electronic switch D9 is connected with the 3rd resonant capacitance C7, and the other end of the tenth quadrielectron switch D10 is connected to negative output terminal.
In the utility model embodiment, the 4th buffer circuit 40 further comprises: the 4th resonant inductance L8, the 4th resonant capacitance C8, the 15 electronic switch D11 and the 16 electronic switch D12; The end of the 4th resonant inductance L8 is connected to the 4th node 400 in the translation circuit, the other end is connected to negative input end by the 11 electronic switch S4 in the translation circuit, and the other end also is connected to negative input end by the 15 electronic switch D11 and the 4th resonant capacitance C8 successively; The end of the 16 electronic switch D12 is connected to the link A4 that the 15 electronic switch D11 is connected with the 4th resonant capacitance C8, and the other end of the 16 electronic switch D12 is connected to positive output end.
As an embodiment of the present utility model, the 13 electronic switch D9, the tenth quadrielectron switch D10, the 15 electronic switch D11, the 16 electronic switch D12 can be semiconductor device such as diode, transistor, metal-oxide-semiconductor, IGBT pipe.And electronic switch D9, D10 in the utility model, D11, D12 all adopt diode, and simple in structure, cost is low.
Among the utility model embodiment, adopt buffer circuit basic identical, repeat no more inferior to the operation principle that the buck voltage changer carries out the operation principle of soft switch control and boost type voltage changer.
Fig. 6 is the circuit diagram of the buck voltage changer that provides of the utility model the 4th embodiment, the difference of the buck voltage changer that provides with the 3rd embodiment is, be connected to that the 3rd buffer circuit 30 between the 3rd node 300 also is connected with negative input end in positive input terminal and the translation circuit, be connected to that the 4th buffer circuit 40 between the 4th node 400 also is connected with positive input terminal in negative input end and the translation circuit; Promptly the end of the tenth quadrielectron switch D10 is connected to the link A3 that the 13 electronic switch D9 is connected with the 3rd resonant capacitance C7, and the other end of the tenth quadrielectron switch D10 is connected to negative input end; The end of the 16 electronic switch D12 is connected to the link A4 that the 15 electronic switch D11 is connected with the 4th resonant capacitance C8, and the other end of the 16 electronic switch D12 is connected to positive input terminal.Like this can be as required carry out clamper with the input voltage of voltage changer.
The voltage changer that the utility model provides adopts buffer circuit to realize soft switch control, has improved conversion efficiency, has improved Electro Magnetic Compatibility; Improve operating frequency simultaneously, reduced hear rate, saved cost.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.

Claims (10)

1, a kind of boost type voltage changer comprises positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit; It is characterized in that described boost type voltage changer also comprises:
Be connected to first buffer circuit between the first node in described reference edge and the described translation circuit and be connected to described reference edge and described translation circuit in second buffer circuit between the Section Point; Described first buffer circuit also is connected with described negative output terminal or negative input end, and described second buffer circuit also is connected with described positive output end or positive input terminal.
2, boost type voltage changer as claimed in claim 1 is characterized in that, described translation circuit comprises:
First energy-storage travelling wave tube, first electronic switch, second electronic switch and second energy-storage travelling wave tube, the 3rd electronic switch, quadrielectron switch;
Described first energy-storage travelling wave tube and described first electronic switch are connected between described positive input terminal and the described positive output end successively, and the link of described first energy-storage travelling wave tube and described first electronic switch is a first node; Described second electronic switch is connected between described first node and the described reference edge;
Described second energy-storage travelling wave tube and described the 3rd electronic switch are connected between described negative input end and the described negative output terminal successively, and the link of described second energy-storage travelling wave tube and described the 3rd electronic switch is a Section Point; Described quadrielectron switch is connected between described Section Point and the described reference edge.
3, boost type voltage changer as claimed in claim 1 is characterized in that, described first buffer circuit further comprises:
First resonant inductance, first resonant capacitance, the 5th electronic switch and the 6th electronic switch;
One end of described first resonant inductance is connected to described reference edge, the other end is connected to first node in the described translation circuit by second electronic switch in the described translation circuit, and the other end also is connected to first node in the described translation circuit by described the 5th electronic switch and described first resonant capacitance successively;
One end of described the 6th electronic switch is connected to the link that described the 5th electronic switch is connected with described first resonant capacitance, and the other end of described the 6th electronic switch is connected to described negative output terminal or negative input end.
4, boost type voltage changer as claimed in claim 3 is characterized in that, described the 5th electronic switch and described the 6th electronic switch are diode, metal-oxide-semiconductor or IGBT pipe.
5, boost type voltage changer as claimed in claim 1 is characterized in that, described second buffer circuit further comprises:
Second resonant inductance, second resonant capacitance, the 7th electronic switch and the 8th electronic switch;
One end of described second resonant inductance is connected to described reference edge, the other end is connected to Section Point in the described translation circuit by quadrielectron switch in the described translation circuit, and the other end also is connected to Section Point in the described translation circuit by described the 7th electronic switch and described second resonant capacitance successively;
One end of described the 8th electronic switch is connected to the link that described the 7th electronic switch is connected with described second resonant capacitance, and the other end of described the 8th electronic switch is connected to described positive output end or positive input terminal.
6, a kind of buck voltage changer comprises positive input terminal, negative input end, positive output end, negative output terminal, reference edge and translation circuit; It is characterized in that described buck voltage changer also comprises:
Be connected to the 3rd buffer circuit between the 3rd node in described positive input terminal and the described translation circuit and be connected to described negative input end and described translation circuit in the 4th buffer circuit between the 4th node; Described the 3rd buffer circuit also is connected with described negative output terminal or negative input end, and described the 4th buffer circuit also is connected with described positive output end or positive input terminal.
7, buck voltage changer as claimed in claim 6 is characterized in that, described translation circuit comprises:
The 3rd energy-storage travelling wave tube, the 9th electronic switch, the tenth electronic switch and the 4th energy-storage travelling wave tube, the 11 electronic switch, the 12 electronic switch;
Described the 9th electronic switch and described the 3rd energy-storage travelling wave tube are connected between described positive input terminal and the described positive output end successively, and the link of described the 9th electronic switch and described the 3rd energy-storage travelling wave tube is the 3rd node; Described the tenth electronic switch is connected between described the 3rd node and the described reference edge;
Described the 11 electronic switch and described the 4th energy-storage travelling wave tube are connected between described negative input end and the described negative output terminal successively, and the link of described the 11 electronic switch and described the 4th energy-storage travelling wave tube is the 4th node; Described the 12 electronic switch is connected between described the 4th node and the described reference edge.
8, buck voltage changer as claimed in claim 6 is characterized in that, described the 3rd buffer circuit further comprises:
The 3rd resonant inductance, the 3rd resonant capacitance, the 13 electronic switch and the tenth quadrielectron switch;
One end of described the 3rd resonant inductance is connected to the 3rd node in the described translation circuit, the other end is connected to described positive input terminal by the 9th electronic switch in the described translation circuit, and the other end also is connected to described positive input terminal by described the 13 electronic switch and described the 3rd resonant capacitance successively;
One end of described the tenth quadrielectron switch is connected to the link that described the 13 electronic switch is connected with described the 3rd resonant capacitance, and the other end of described the tenth quadrielectron switch is connected to described negative output terminal or negative input end.
9, buck voltage changer as claimed in claim 6 is characterized in that, described the 4th buffer circuit further comprises:
The 4th resonant inductance, the 4th resonant capacitance, the 15 electronic switch and the 16 electronic switch;
One end of described the 4th resonant inductance is connected to the 4th node in the described translation circuit, the other end is connected to described negative input end by the 11 electronic switch in the described translation circuit, and the other end also is connected to described negative input end by described the 15 electronic switch and described the 4th resonant capacitance successively;
One end of described the 16 electronic switch is connected to the link that described the 15 electronic switch is connected with described the 4th resonant capacitance, and the other end of described the 16 electronic switch is connected to described positive output end or positive input terminal.
10, a kind of positive-negative power system is characterized in that, described positive-negative power system comprises each described boost type voltage changer of claim 1 to 5 or each described buck voltage changer of claim 6 to 9.
CNU2008202131233U 2008-10-30 2008-10-30 Voltage converter, positive and negative electric power system Expired - Fee Related CN201286064Y (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148566A (en) * 2011-04-21 2011-08-10 淮海工学院 Boost-type voltage balance converter
CN102647083A (en) * 2012-04-23 2012-08-22 淮海工学院 Boost two-way voltage balance converter
CN103944389A (en) * 2014-04-04 2014-07-23 南京国电环保科技有限公司 Novel resonant converter
CN104113208A (en) * 2014-07-02 2014-10-22 三峡大学 Interleaved Boost converter comprising lossless buffer circuit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102148566A (en) * 2011-04-21 2011-08-10 淮海工学院 Boost-type voltage balance converter
CN102647083A (en) * 2012-04-23 2012-08-22 淮海工学院 Boost two-way voltage balance converter
CN103944389A (en) * 2014-04-04 2014-07-23 南京国电环保科技有限公司 Novel resonant converter
CN103944389B (en) * 2014-04-04 2016-02-10 南京国电环保科技有限公司 A kind of novel controlled resonant converter
CN104113208A (en) * 2014-07-02 2014-10-22 三峡大学 Interleaved Boost converter comprising lossless buffer circuit
CN104113208B (en) * 2014-07-02 2017-02-01 三峡大学 Interleaved Boost converter comprising lossless buffer circuit

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