CN103368401B - Power supply conversion device with control switch - Google Patents
Power supply conversion device with control switch Download PDFInfo
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- CN103368401B CN103368401B CN201210262068.8A CN201210262068A CN103368401B CN 103368401 B CN103368401 B CN 103368401B CN 201210262068 A CN201210262068 A CN 201210262068A CN 103368401 B CN103368401 B CN 103368401B
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- diode
- electrically connected
- switch
- control switch
- electric capacity
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- 238000006243 chemical reaction Methods 0.000 title abstract description 8
- 238000004804 winding Methods 0.000 claims description 35
- 230000005611 electricity Effects 0.000 claims description 6
- 230000005669 field effect Effects 0.000 claims description 5
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 2
- 239000003990 capacitor Substances 0.000 abstract 2
- 238000011084 recovery Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000004146 energy storage Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Abstract
The invention relates to a power conversion device with a control switch, which comprises a transformer module, the control switch, a power input unit, a diode circuit, a capacitor circuit and a power output unit. The transformer module comprises two transformers with independent iron cores, and the control switch comprises a first transistor switch and a second transistor switch which are electrically connected to the primary side of the transformer module. When the power input unit supplies power from the primary side, the power conversion device with the control switch can utilize the staggered or simultaneous conduction of the first transistor switch and the second transistor switch to enable the diode circuit and the capacitor circuit to act along with the power input unit, so that the power output unit electrically connected to the secondary side of the transformer module obtains output voltage higher than the voltage of the power input unit, and the power conversion device has high voltage gain, leakage inductance energy recovery and low input current ripple.
Description
Technical field
The present invention relates to a kind of conversion equipment, particularly a kind of power supply change-over device of tool control switch.
Background technology
Conventional boost (Boost) transducer is the power supply changeover device of a kind of output voltage higher than input voltage, and when output voltage gain is lower, circuit can realize higher conversion efficiency; Otherwise when high voltage gain exports, the parasitic antenna on circuit will make circuit loss become large, causes conversion efficiency to reduce.
Return (Flyback) transducer of speeding by the number of turns ratio of primary side with secondary side, can high voltage gain be obtained.Therefore for improving voltage gain, the number of turns of primary side winding must be increased, making the leakage inductance of transformer and copper loss become large.When power switch ends, leakage inductance due to transformer can be let out between pole (drain) (Drain) and source electrode (Source) at power switch and can be produced abrupt voltage wave (Spike), and cause the loss of circuit, also must select high withstand voltage power switch.In order to overcome the abrupt voltage wave that leakage inductance causes, the design of buffer circuit (Snubber Circuit) will be the emphasis of flyback converter, and the loss that buffer circuit will cause some to change due to the cause of resistance.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of power supply change-over device of tool control switch.
For achieving the above object, the invention provides a kind of power supply change-over device of tool control switch, the power supply change-over device of described tool control switch comprises:
One transformer module, it has a secondary side of a primary side and corresponding described primary side, described primary side comprises one first winding coil and one second winding coil, described first winding coil has a first end and one second end, second winding coil has one the 3rd end and one the 4th end, and described secondary side comprises a tertiary winding coil and one the 4th winding coil, described tertiary winding coil has a five terminal and one the 6th end, described 4th winding coil has one the 7th end and one the 8th end, wherein said 6th end is electrically connected described 7th end, one first magnetizing inductance is also comprised between described first end and the second end, the second magnetizing inductance is also comprised between described 3rd end and the 4th end,
One control switch, it comprises a first transistor switch and a transistor seconds switch, one of described the first transistor switch is let out and is extremely electrically connected to described second end, the one source pole end of described the first transistor switch is electrically connected to a ground connection, one of described transistor seconds switch is let out and is extremely electrically connected to described 4th end, and the one source pole end of described transistor seconds switch is electrically connected to described ground connection;
One power input unit, it comprises one first electrode tip and one second electrode tip, and described first electrode tip is electrically connected to described first end and the 3rd end, and described second electrode tip is electrically connected to described ground connection;
One diode circuit, it comprises one first diode, one second diode, one the 3rd diode and one the 4th diode, one P type abutting end of described first diode is electrically connected to described second end, one N-type abutting end of described first diode is electrically connected to a P type abutting end of described second diode, one N-type abutting end of described 3rd diode is electrically connected to described 8th end, one P type abutting end of described 3rd diode is electrically connected to a N-type abutting end of described second diode, one P type abutting end of described 4th diode is electrically connected to a N-type abutting end of described 3rd diode,
One condenser network, it comprises one first electric capacity, one second electric capacity, one the 3rd electric capacity and one the 4th electric capacity, wherein, one end of described first electric capacity is electrically connected to the N-type abutting end of described second diode, the other end of described first electric capacity is electrically connected to described ground connection, one end of described second electric capacity and the 3rd electric capacity is electrically connected to described five terminal and is connected to the P type abutting end of described 3rd diode and a N-type abutting end of the 4th diode at the other end, one end of described 4th electric capacity is electrically connected to the P type abutting end of described second diode, it is extreme that the other end of described 4th electric capacity is electrically connected to letting out of described transistor seconds switch, and
One power output unit, it has one end and is electrically connected at the N-type abutting end of described 4th diode and the other end is electrically connected at described ground connection.
Preferably, wherein said the first transistor switch also comprises a gate terminal.
Preferably, wherein said transistor seconds switch also comprises a gate terminal.
Preferably, wherein said the first transistor switch or transistor seconds switch are a metal-oxide half field effect transistor.
Preferably, wherein said first electrode tip is a positive electricity end.
Preferably, wherein said second electrode tip is that a negative electricity is extreme.
Preferably, wherein said power output unit also comprises a load.
The power supply change-over device of tool control switch provided by the present invention at least comprises following advantage: have high voltage gain, leakage inductance energy reclaims and low input current ripple.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the power supply change-over device of one embodiment of the invention tool control switch;
Fig. 2 is the movement oscillogram of the power supply change-over device of Fig. 1 tool control switch;
Fig. 3 is one of circuit operation schematic diagram of the power supply change-over device of Fig. 1 tool control switch;
Fig. 4 is the circuit operation schematic diagram two of the power supply change-over device of Fig. 1 tool control switch;
Fig. 5 is the circuit operation schematic diagram three of the power supply change-over device of Fig. 1 tool control switch.
[main element symbol description]
The power supply change-over device-1 of tool control switch; Transformer module-10; First winding coil-101; First end-101a; Second end-101b; Second winding coil-102; 3rd end-102a; 4th end-102b; Tertiary winding coil-103; Five terminal-103a; 6th end-103b; 4th winding coil-104; 7th end-104a; 8th end-104b; First electric capacity-C
1; Second electric capacity-C
2; 3rd electric capacity-C
3; 4th electric capacity-C
b; Let out extreme-D; First diode-D
1; Second diode-D
2; 3rd diode-D
3; 4th diode-D
4; Gate terminal-G; First magnetizing inductance-L
m1; Second magnetizing inductance-L
m2; Load-R
o; Source terminal-S; The first transistor switch-S
1; Transistor seconds switch-S
2; Power input unit-V
in; Power output unit-V
o; Flow through load R
oelectric current-I
o; Flow through the first transistor switch S
1electric current-i
s1; Flow through transistor seconds switch S
2electric current-i
s2; Flow through the first electric capacity C
1electric current-i
c1; Flow through the second electric capacity C
2electric current-i
c2; Flow through the 3rd electric capacity C
3electric current-i
c3; Flow through the first diode D
1electric current-i
d1; Flow through the second diode D
2electric current-i
d2; Flow through the 3rd diode D
3electric current-i
d3; Flow through the 4th diode D
4electric current-i
d4; Electric current-the i of tertiary winding coil 103
lS; First magnetizing inductance L
m1electric current-i
lm1; Second magnetizing inductance L
m2electric current-i
lm2; Flow into the electric current-i of the primary side of the first transformer
lK1; Flow into the electric current-i of the primary side of the second transformer
lK2; First electric capacity C
1voltage-V
c1; Second electric capacity C
2voltage-V
c2; 3rd electric capacity C
3voltage-V
c3; 4th electric capacity C
bvoltage V
cb; Voltage-the V of tertiary winding coil 103
lS1; Voltage-the V of the 4th winding coil 104
lS2; The first transistor switch S
1the voltage-V letting out poles D
dS1; Transistor seconds switch S
2the voltage-V letting out poles D
dS2; The first transistor switch S
1the control signal-V of gate terminal G
gS1; Transistor seconds switch S
2the control signal-V of gate terminal G
gS2; First magnetizing inductance L
m1voltage-V
lm1; Second magnetizing inductance L
m2voltage-V
lm2.
Embodiment
For allowing above-mentioned purpose of the present invention, characteristic sum feature become apparent, accompanying drawing is hereafter coordinated related embodiment of the present invention to be described in detail as follows.
Refer to Fig. 1, Fig. 1 is the circuit diagram of the power supply change-over device of one embodiment of the invention tool control switch.
As shown in Figure 1, the power supply change-over device 1 of tool control switch comprises transformer module 10, control switch, power input unit V
in, diode circuit, condenser network and power output unit V
o.
Transformer module 10 can comprise the transformer of two independent iron cores, and each transformer has the secondary side of primary side and this primary side corresponding.In detail, the primary side of the first transformer comprises the first winding coil 101; The primary side of the second transformer comprises the second winding coil 102.First winding coil 101 has first end 101a and the second end 101b, and the second winding coil 102 has the 3rd end 102a and the 4th end 102b, and the secondary side of the first transformer comprises tertiary winding coil 103; The secondary side of the second transformer comprises the 4th winding coil 104.Tertiary winding coil 103 has five terminal 103a and the 6th end 103b, and the 4th winding coil 104 has the 7th end 104a and the 8th end 104b.Wherein the 6th end 103b is electrically connected between the 7th end 104a, first end 101a and the second end 101b and also comprises the first magnetizing inductance L
m1, between the 3rd end 102a and the 4th end 102b, also comprise the second magnetizing inductance L
m2.
Control switch can comprise the first transistor switch S
1and transistor seconds switch S
2, using as power switch.The first transistor switch S
1extreme (drain end (the Drain)) D that lets out be electrically connected to the second end 101b, the first transistor switch S
1source terminal S be electrically connected to ground connection (ground), transistor seconds switch S
2extreme (drain end (the Drain)) D that lets out be electrically connected to the 4th end 102b, transistor seconds switch S
2source terminal S be electrically connected to ground connection.
In detail, the first transistor switch S
1and/or transistor seconds switch S
2can be metal-oxide half field effect transistor (metal-oxide-semiconductor field effect transistor, or bipolarity junction transistor (bipolar junction transistor MOSFET), but be not limited to this BJT).Wherein, in embodiment like this, when the first transistor switch S
1with transistor seconds switch S
2when being all metal-oxide half field effect transistor, the first transistor switch S
1with transistor seconds switch S
2comprise the gate terminal G in order to input control signal.
Power input unit V
incomprise the first electrode tip and the second electrode tip.Power input unit V
inthe first electrode tip be electrically connected to first end 101a and the 3rd end 102a, power input unit V
inthe second electrode tip be electrically connected to ground connection.Wherein, power input unit V
inthe first electrode tip can be positive electricity end; Power input unit V
inthe second electrode tip to can be negative electricity extreme, but be not limited to this.
Diode circuit comprises the first diode D
1, the second diode D
2, the 3rd diode D
3and the 4th diode D
4.First diode D
1p type abutting end be electrically connected to the second end 101b, the first diode D
1n-type abutting end be electrically connected to the second diode D
2p type abutting end, the 3rd diode D
3n-type abutting end be electrically connected to the 8th end 104b, the 3rd diode D
3p type abutting end be electrically connected to the second diode D
2n-type abutting end, the 4th diode D
4p type abutting end be electrically connected to the 3rd diode D
3n-type abutting end.
Condenser network comprises the first electric capacity C
1, the second electric capacity C
2, the 3rd electric capacity C
3and the 4th electric capacity C
b.Wherein the first electric capacity C
1one end be electrically connected to the second diode D
2n-type abutting end, the first electric capacity C
1the other end be electrically connected to ground connection, the second electric capacity C
2with the 3rd electric capacity C
3one end be electrically connected to five terminal 103a, and the other end of the second electric capacity is connected to the 3rd diode D
3p type abutting end, the 3rd electric capacity C
3the other end be connected to the 4th diode D
4n-type abutting end, the 4th electric capacity C
bone end be electrically connected to the second diode D
2p type abutting end, the 4th electric capacity C
bthe other end be electrically connected to transistor seconds switch S
2let out poles D.
Power output unit V
othere is one end and be electrically connected at the 4th diode D
4n-type abutting end and the other end be electrically connected to ground connection.In detail, power output unit V
oplace also comprises load R
o.
As Figure 2-Figure 5, the symbol in each circuit diagram is expressed as follows respectively: I
o: flow through load R
oelectric current; i
s1: flow through the first transistor switch S
1electric current; i
s2: flow through transistor seconds switch S
2electric current; i
c1: flow through the first electric capacity C
1electric current; i
c2: flow through the second electric capacity C
2electric current; i
c3: flow through the 3rd electric capacity C
3electric current; i
d1: flow through the first diode D
1electric current; i
d2: flow through the second diode D
2electric current; i
d3: flow through the 3rd diode D
3electric current; i
d4: flow through the 4th diode D
4electric current; i
lS: the electric current of tertiary winding coil 103; i
lm1: the first magnetizing inductance L
m1electric current; i
lm2: the second magnetizing inductance L
m2electric current; i
lK1: the electric current flowing into the primary side of the first transformer; i
lK2: the electric current flowing into the primary side of the second transformer; V
c1: the first electric capacity C
1voltage; V
c2: the second electric capacity C
2voltage; V
c3: the 3rd electric capacity C
3voltage; V
cb: the 4th electric capacity C
bvoltage; V
lS1: the voltage of tertiary winding coil 103; V
lS2: the voltage of the 4th winding coil 104; V
dS1: the first transistor switch S
1the voltage letting out poles D; V
dS2: transistor seconds switch S
2the voltage letting out poles D; V
gS1: the first transistor switch S
1the control signal of gate terminal G; V
gS2: transistor seconds switch S
2the control signal of gate terminal G; V
lm1: the first magnetizing inductance L
m1voltage; V
lm2: the second magnetizing inductance L
m2voltage.
Please refer to Fig. 1, Fig. 2 and Fig. 3, Fig. 2 is the movement oscillogram of the power supply change-over device of Fig. 1 tool control switch; Fig. 3 is one of circuit operation schematic diagram of the power supply change-over device of Fig. 1 tool control switch.
As shown in Figure 2, the circuit operation of the power supply change-over device 1 of tool control switch at least comprises four kinds of operator schemes.Such as: pattern one is 0
t
(D-0.5) T (such as, t
0~ t
1); Pattern two is (D-0.5) T
t
0.5T (such as, t
1~ t
2); Pattern three is 0.5T
t
dT (such as, t
2~ t
3); Pattern four is DT
t
t (such as, t
3~ t
0).Wherein, the V in Fig. 2
gS1with V
gS2be respectively the first transistor switch S
1with transistor seconds switch S
2the control signal of gate terminal G.
Refer to Fig. 1, Fig. 2 and Fig. 3, when the power supply change-over device 1 of tool control switch operates in pattern one (t
0~ t
1) time, its circuit operation principle (equivalent electric circuit) of the power supply change-over device 1 of tool control switch as shown in Figure 3: the first transistor switch S
1and transistor seconds switch S
2for conducting; First diode D
1, the second diode D
2, the 3rd diode D
3and the 4th diode D
4for inverse cut-off partially; First magnetizing inductance L
m1with the second magnetizing inductance L
m2carry out energy storage.
Then, refer to Fig. 1, Fig. 2 and Fig. 4, Fig. 4 is the circuit operation schematic diagram two of the power supply change-over device of Fig. 1 tool control switch.
When the power supply change-over device 1 of tool control switch operates in pattern two (t
1~ t
2) time, the circuit operation principle (equivalent electric circuit) of the power supply change-over device 1 of tool control switch as shown in Figure 4: the first transistor switch S
1with the second diode D
2, the 4th diode D
4for conducting; Transistor seconds switch S
2with the first diode D
1, the 3rd diode D
3for cut-off.
Then, Fig. 1, Fig. 2 and Fig. 3 is referred to.When the power supply change-over device 1 of tool control switch operates in pattern three (t
2~ t
3) time, the operating principle of its circuit is identical with pattern one, the circuit operation principle (equivalent electric circuit) of the power supply change-over device 1 of tool control switch as shown in Figure 3: the first transistor switch S
1and transistor seconds switch S
2for conducting; First diode D
1, the second diode D
2, the 3rd diode D
3and the 4th diode D
4for inverse cut-off partially; First magnetizing inductance L
m1with the second magnetizing inductance L
m2carry out energy storage.
Afterwards, refer to Fig. 1, Fig. 2 and Fig. 5, Fig. 5 is the circuit operation schematic diagram three of the power supply change-over device of Fig. 1 tool control switch.
When the power supply change-over device 1 of tool control switch operates in pattern four (t
3~ t
0) time, the circuit operation principle (equivalent electric circuit) of the power supply change-over device 1 of tool control switch as shown in Figure 5: transistor seconds switch S
2with the first diode D
1, the 3rd diode D
3for conducting; The first transistor switch S
1with the second diode D
2, the 4th diode D
4for cut-off.
Hold above-mentioned, the volt-second balance via magnetizing inductance can obtain ideal voltage gain and be: V
o/ V
in=
; Wherein, V
ofor power output unit; V
infor power input unit; N is the coil ratio (such as: the coil turn of the coil turn/primary side of secondary side) of transformer module 10; D is the work period.
From the above, the power supply change-over device of tool control switch of the present invention comprises following feature:
1. make output (load place as power output unit) obtain high voltage gain by the coupling inductance turn ratio and rectification multiple pressuring circuit;
2. utilize two groups of power switchs (as the first transistor switch S
1with transistor seconds switch S
2) misphase conducting, input big current on average can be shunted, and then reduce element conductive loss, also have the feature of low input current ripple;
3. there is the function of similar active clamping, leakage inductance energy can be recycled to output, effectively suppress switch surge voltage, and then conversion efficiency is promoted more; Further, two groups of power switchs are all designed to low-pressure side (such as, primary side), and switching voltage stress is lower than output voltage, and part is selected and low withstand voltage can be selected to design.
The above; be only preferred embodiment of the present invention; and be not used to limit scope of patent protection of the present invention, any those of ordinary skill in the art is not departing from the spiritual equalization change done of patent of the present invention and is modifying, and all in like manner belongs to scope of patent protection of the present invention.
Claims (7)
1. a power supply change-over device for tool control switch, is characterized in that, the power supply change-over device of described tool control switch comprises:
One transformer module, it has a secondary side of a primary side and corresponding described primary side, described primary side comprises one first winding coil and one second winding coil, described first winding coil has a first end and one second end, second winding coil has one the 3rd end and one the 4th end, and described secondary side comprises a tertiary winding coil and one the 4th winding coil, described tertiary winding coil has a five terminal and one the 6th end, described 4th winding coil has one the 7th end and one the 8th end, wherein said 6th end is electrically connected described 7th end, one first magnetizing inductance is also comprised between described first end and the second end, one second magnetizing inductance is also comprised between described 3rd end and the 4th end,
One control switch, it comprises a first transistor switch and a transistor seconds switch, one of described the first transistor switch is let out and is extremely electrically connected to described second end, the one source pole end of described the first transistor switch is electrically connected to a ground connection, one of described transistor seconds switch is let out and is extremely electrically connected to described 4th end, and the one source pole end of described transistor seconds switch is electrically connected to described ground connection;
One power input unit, it comprises one first electrode tip and one second electrode tip, and described first electrode tip is electrically connected to described first end and the 3rd end, and described second electrode tip is electrically connected to described ground connection;
One diode circuit, it comprises one first diode, one second diode, one the 3rd diode and one the 4th diode, one P type abutting end of described first diode is electrically connected to described second end, one N-type abutting end of described first diode is electrically connected to a P type abutting end of described second diode, one N-type abutting end of described 3rd diode is electrically connected to described 8th end, one P type abutting end of described 3rd diode is electrically connected to a N-type abutting end of described second diode, one P type abutting end of described 4th diode is electrically connected to the N-type abutting end of described 3rd diode,
One condenser network, it comprises one first electric capacity, one second electric capacity, one the 3rd electric capacity and one the 4th electric capacity, wherein, one end of described first electric capacity is electrically connected to the N-type abutting end of described second diode, the other end of described first electric capacity is electrically connected to described ground connection, one end of described second electric capacity and the 3rd electric capacity is electrically connected to described five terminal and is connected to the P type abutting end of described 3rd diode and a N-type abutting end of the 4th diode at the other end, one end of described 4th electric capacity is electrically connected to the P type abutting end of described second diode, it is extreme that the other end of described 4th electric capacity is electrically connected to letting out of described transistor seconds switch, and
One power output unit, it has one end and is electrically connected at the N-type abutting end of described 4th diode and the other end is electrically connected at described ground connection.
2. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described the first transistor switch also comprises a gate terminal.
3. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described transistor seconds switch also comprises a gate terminal.
4. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described the first transistor switch or transistor seconds switch are a metal-oxide half field effect transistor.
5. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described first electrode tip is a positive electricity end.
6. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described second electrode tip is that a negative electricity is extreme.
7. have the power supply change-over device of control switch as claimed in claim 1, it is characterized in that, described power output unit also comprises a load.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101112419A TW201342782A (en) | 2012-04-09 | 2012-04-09 | Power converting device with control switch |
| TW101112419 | 2012-04-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103368401A CN103368401A (en) | 2013-10-23 |
| CN103368401B true CN103368401B (en) | 2015-07-08 |
Family
ID=49369113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210262068.8A Expired - Fee Related CN103368401B (en) | 2012-04-09 | 2012-07-26 | Power supply conversion device with control switch |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103368401B (en) |
| TW (1) | TW201342782A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI581552B (en) * | 2015-11-27 | 2017-05-01 | 國立臺灣科技大學 | Boost converter |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746565A (en) * | 2013-12-30 | 2014-04-23 | 杭州科为达电气有限公司 | High-gain active lossless clamping interleaving converter with internal transformer and voltage-multiplying structure |
| TWI625033B (en) * | 2017-03-31 | 2018-05-21 | 崑山科技大學 | Interleaved direct-current boost device |
| CN110572045B (en) * | 2019-10-15 | 2020-10-09 | 福州大学 | High-gain DC-DC converter based on double coupling inductors |
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| CN1380736A (en) * | 2001-04-12 | 2002-11-20 | 天网电子股份有限公司 | Non-ringing zero-potential switching method for power converter and its converter |
| CN1499703A (en) * | 2002-11-08 | 2004-05-26 | 杭州千岛湖恒源电气有限公司 | Soft switching circuit without absorption loss |
| CN101685980A (en) * | 2008-09-27 | 2010-03-31 | 力博特公司 | Full-bridge zero-voltage boost switching resonant converter based on LLC used for UPS |
| CN101777840A (en) * | 2010-02-25 | 2010-07-14 | 北京航空航天大学 | Buck-boost composite DC/DC converter |
| CN102195485A (en) * | 2010-03-18 | 2011-09-21 | 全汉企业股份有限公司 | Direct current (DC)-DC converter |
| CN202840965U (en) * | 2012-04-09 | 2013-03-27 | 星博电子股份有限公司 | Power supply conversion device with control switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI581552B (en) * | 2015-11-27 | 2017-05-01 | 國立臺灣科技大學 | Boost converter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103368401A (en) | 2013-10-23 |
| TWI459694B (en) | 2014-11-01 |
| TW201342782A (en) | 2013-10-16 |
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