CN104638932A - Multi-resonant converter - Google Patents
Multi-resonant converter Download PDFInfo
- Publication number
- CN104638932A CN104638932A CN201510101619.6A CN201510101619A CN104638932A CN 104638932 A CN104638932 A CN 104638932A CN 201510101619 A CN201510101619 A CN 201510101619A CN 104638932 A CN104638932 A CN 104638932A
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- CN
- China
- Prior art keywords
- resonant
- diode
- inductance
- switching tube
- transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/338—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement
- H02M3/3385—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in a self-oscillating arrangement with automatic control of output voltage or current
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a multi-resonant converter and belongs to the technical field of power electronic converters. The multi-resonant converter consists of an input source (Uin), first to fourth switching tubes (S1-S4), a main inductor (Lm), a transformer (T), a resonant inductor (Lr), a resonant capacitor (Cr), a secondary-side inductor (Lp), a secondary-side capacitor (Cp), four diodes (D1, D2, D3 and D4), an output filter capacitor (Co) and a load (Ro). According to the multi-resonant converter, the original secondary-side energy transmission is completed through the resonance of the resonant inductor and the resonant capacitor, the output voltage can be controlled through the frequency converting control of the switching tube, and the maximum working frequency of the switching tube is located at a resonant frequency point consisting of the secondary-side inductor (Lp) and the secondary-side capacitor (Cp). According to the multi-resonant converter, soft switching of all switching devices can be achieved within a full-load range. The multi-resonant converter has inherent slow starting and short circuit protection capacity, is particularly suitable for high-frequency, high-power-density, wide-gain and high-efficiency isolating power conversion, and has the advantages of simple control, high reliability, simplicity in implementation and the like.
Description
Technical field
The present invention relates to a kind of multi-resonance converter, belong to converters technical field, especially belong to isolated DC-direct current energy converter technique field.
Background technology
Wide gain isolated DC transducer is applicable to require input and output electrical isolation and the occasion that input voltage range is wider or output voltage range is wider, and this quasi-converter has a wide range of applications in every field such as generation of electricity by new energy, industry, civilian, Aero-Space.
Traditional wide gain isolated DC transducer has phase-shifted full-bridge converter, constant by the phase shifting control output voltage of former limit switching tube.But phase-shifting full-bridge has two shortcomings: (1) underloading time lag back axle arm switch pipe is not easy to realize Sofe Switch; (2) secondary can cause duty-cycle loss.This is obviously unfavorable for transducer effciency.
LLC resonant converter is the isolated converter obtaining extensive concern in recent years.LLC often adopts variable frequency adjustment technology, and can realize former limit switch tube zero voltage open-minded, secondary side diode zero-current switching, gain is wider, and efficiency is high, and power density is large.But LLC is faced with some problems: when switching frequency is comparatively hard higher than gain characteristic during resonance frequency, when meaning that gain is wider, frequency-tuning range is also wider, is unfavorable for magnetic element design and transducer effciency; In addition, LLC resonant converter itself also exists slow opening and short-circuit protection problem, usually needs extra safeguard measure.
By a trapper of connecting at the resonant cavity of traditional LLC, there has been proposed multi-resonance converter.After introducing trapper, converter not only remains the advantage of traditional LLC, and softer higher than gain characteristic during resonance point; In addition, its gain can drop to 0, can be used to realize slow opening and short-circuit protection.But because trapper is connected with the resonant cavity of LLC, the circulation of resonant cavity also can flow into trapper, brings extra loss, if be applied in boosting occasion, primary current is comparatively large, and trapper loss can increase further.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of multi-resonance converter is provided.
The present invention is by the following technical solutions:
Described multi-resonance converter is by input source (U
in), the first switching tube (S
1), second switch pipe (S
2), the 3rd switching tube (S
3), the 4th switching tube (S
4), main inductance (L
m), transformer (T), resonant inductance (L
r), resonant capacitance (C
r), secondary inductance (L
p), secondary electric capacity (C
p), the first diode (D
1), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), output filter capacitor (C
o) and load (R
o) form, transformer (T) comprises former limit winding (N
p) and vice-side winding (N
s).
Described input source (U
in) positive pole and the first switching tube (S
1) drain electrode and second switch pipe (S
2) drain electrode be connected, the first switching tube (S
1) source electrode be connected in the 3rd switching tube (S
3) drain electrode and resonant inductance (L
r) one end, resonant inductance (L
r) the other end be connected in main inductance (L
m) and transformer (T) former limit winding (N
p) Same Name of Ends, main inductance (L
m) the other end and transformer (T) former limit winding (N
p) non-same polarity be connected in resonant capacitance (C
r), resonant capacitance (C
r) the other end be connected in second switch pipe (S
2) source electrode and the 4th switching tube (S
4) drain electrode, the 4th switching tube (S
4) source electrode be connected in the 3rd switching tube (S
3) source electrode and input source (U
in) negative pole.
Described transformer (T) vice-side winding (N
s) Same Name of Ends be connected in secondary inductance (L
p) one end and secondary electric capacity (C
p) one end, secondary inductance (L
p) the other end be connected in secondary electric capacity (C
p) the other end, the first diode (D
1) anode and the 3rd diode (D
3) negative electrode, the first diode (D
1) negative electrode be connected in the second diode (D
2) negative electrode, output filter capacitor (C
o) one end and load (R
o) one end, transformer (T) vice-side winding (N
s) non-same polarity be connected in the second diode (D
2) anode and the 4th diode (D
4) negative electrode, the 3rd diode (D
3) anode be connected in the 4th diode (D
4) anode, output filter capacitor (C
o) the other end and load (R
o) the other end.
Described main inductance (L
m) replaced by the magnetizing inductance of transformer (T).
Described resonant inductance (L
r) partly or entirely replaced by the leakage inductance of transformer (T).
The present invention has following technique effect:
(1) voltage of all switching devices is all direct by input voltage or output voltage clamper, and switching device voltage stress is low;
(2) all switching devices can realize Sofe Switch in full-load range, and conversion efficiency is high;
(3) transformer leakage inductance is utilized effectively, and there is not circulation or due to voltage spikes problem that leakage inductance causes;
(4) this converter can HF switch work, thus effectively reduce the volume weight of inductance and transformer, realizes high power density;
(5) converter is softer higher than gain characteristic during resonance point, is applicable to wide gain occasion;
(6) converter has inherent slowly to open and short-circuit protection ability.
Accompanying drawing explanation
Accompanying drawing 1 is the circuit theory diagrams of multi-resonance converter of the present invention;
Accompanying drawing 2 is main oscillograms of multi-resonance converter of the present invention;
Accompanying drawing 3 ~ accompanying drawing 6 is multi-resonance converter of the present invention equivalent circuit diagrams in each switch mode;
Designation in above accompanying drawing: U
infor input source; L
mfor main inductance; L
rfor resonant inductance; T is transformer; N
pand N
sbe respectively former limit winding and the vice-side winding of transformer (T); C
rfor resonant capacitance; L
pfor secondary inductance; C
pfor secondary electric capacity; C
ofor output filter capacitor; R
ofor load; S
1, S
2, S
3, S
4be respectively first, second, third, fourth switching tube; D
1, D
2, D
3, D
4be respectively first, second, third, fourth diode; U
ofor output voltage; V
aBbe the first switching tube (S
1) source electrode and second switch pipe (S
2) source electrode between voltage; V
crfor resonant capacitance (C
r) both end voltage; i
lmfor main inductance (L
m) electric current; i
lrfor resonant inductance (L
r) electric current; i
d1, i
d2be respectively secondary first diode (D
1) and secondary second diode (D
2) electric current; T, t
0, t
1, t
2, t
3, t
4, t
5, t
6, t
7and t
8for the time.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.
As shown in Figure 1, described multi-resonance converter is by input source (U
in), the first switching tube (S
1), second switch pipe (S
2), the 3rd switching tube (S
3), the 4th switching tube (S
4), main inductance (L
m), transformer (T), resonant inductance (L
r), resonant capacitance (C
r), secondary inductance (L
p), secondary electric capacity (C
p), the first diode (D
1), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), output filter capacitor (C
o) and load (R
o) form, transformer (T) comprises former limit winding (N
p) and vice-side winding (N
s).
Described input source (U
in) positive pole and the first switching tube (S
1) drain electrode and second switch pipe (S
2) drain electrode be connected, the first switching tube (S
1) source electrode be connected in the 3rd switching tube (S
3) drain electrode and resonant inductance (L
r) one end, resonant inductance (L
r) the other end be connected in main inductance (L
m) and transformer (T) former limit winding (N
p) Same Name of Ends, main inductance (L
m) the other end and transformer (T) former limit winding (N
p) non-same polarity be connected in resonant capacitance (C
r), resonant capacitance (C
r) the other end be connected in second switch pipe (S
2) source electrode and the 4th switching tube (S
4) drain electrode, the 4th switching tube (S
4) source electrode be connected in the 3rd switching tube (S
3) source electrode and input source (U
in) negative pole.
Described transformer (T) vice-side winding (N
s) Same Name of Ends be connected in secondary inductance (L
p) one end and secondary electric capacity (C
p) one end, secondary inductance (L
p) the other end be connected in secondary electric capacity (C
p) the other end, the first diode (D
1) anode and the 3rd diode (D
3) negative electrode, the first diode (D
1) negative electrode be connected in the second diode (D
2) negative electrode, output filter capacitor (C
o) one end and load (R
o) one end, transformer (T) vice-side winding (N
s) non-same polarity be connected in the second diode (D
2) anode and the 4th diode (D
4) negative electrode, the 3rd diode (D
3) anode be connected in the 4th diode (D
4) anode, output filter capacitor (C
o) the other end and load (R
o) the other end.
In the specific implementation, described main inductance (L
m) replaced by the magnetizing inductance of transformer (T), described resonant inductance (L
r) partly or entirely replaced by the leakage inductance of transformer (T).This shows that inductance quantity required in practical application can greatly reduce, and the leakage inductance of transformer (T) will be utilized effectively.
Multi-resonance converter of the present invention takes following control program in the specific implementation: described first to fourth switching tube (S
1~ S
4) switching frequency equal, the first switching tube (S
1), the 4th switching tube (S
4) and second switch pipe (S
2), the 3rd switching tube (S
3) complementary conducting, and duty ratio is 0.5, the first switching tube (S
1) and the 4th switching tube (S
4) simultaneously conducting, to turn off, second switch pipe (S simultaneously
2) and the 3rd switching tube (S
3) simultaneously conducting, to turn off, by regulating first to fourth switching tube (S simultaneously
1~ S
4) switching frequency realize the control of output voltage.
In the specific implementation, the first switching tube (S
1) and the 3rd switching tube (S
3) switching signal between rational Dead Time must be set to realize the first switching tube (S
1) and the 3rd switching tube (S
3) Sofe Switch, second switch pipe (S
2) and the 4th switching tube (S
4) switching signal between rational Dead Time must be set to realize second switch pipe (S
2) and the 4th switching tube (S
4) Sofe Switch.
In the specific implementation, all switching tubes should select the semiconductor switch device with parasitic body diode, such as mos field effect transistor etc.If selected switching tube is without parasitic body diode, then should at its drain electrode and source electrode two ends anti-paralleled diode.
In the specific implementation, according to secondary inductance (L
p) and secondary electric capacity (C
p) the resonant frequency point place transducer gain that forms is the characteristic of 0, and the highest for startup switching frequency is located at secondary inductance (L
p) and secondary electric capacity (C
p) resonant frequency point that forms, the slow of converter can be realized and open.
In the specific implementation, according to secondary inductance (L
p) and secondary electric capacity (C
p) the resonant frequency point place transducer gain that forms is the characteristic of 0, in the situation of being short-circuited, by switching tube (S
1~ S
4) switching frequency be limited in secondary inductance (L
p) and secondary electric capacity (C
p) resonant frequency point that forms, the short-circuit protection of converter can be realized.
Can visually see from the circuit structure of the multi-resonance converter of the present invention shown in accompanying drawing 1, the switching device on the former limit of this converter is all directly transfused to voltage clamping, namely its voltage stress just equals input voltage, and the switching device of converter secondary is all directly output voltage clamping, also namely its voltage stress equals output voltage, there is not due to voltage spikes problem in all switching devices of former limit and secondary, has the advantage that switching device voltage stress is low.
Suppose that all inductance, electric capacity, switching tube and diode are all ideal component, ignore output filter capacitor (C
o) on voltage ripple, then output filter capacitor C
ovoltage namely equal output voltage U
o.Multi-resonance converter of the present invention (hereinafter referred to as converter) has four kinds of switch mode in half switch periods.
Switch mode 1 [t
0, t
1]: t
0moment, switching tube S
1, S
4open-minded, resonant inductance (L
r) current i
lrthan main inductance (L
m) current i
lmgreatly, former limit is to secondary transferring energy.Owing to opening moment resonant inductance (L
r) current i
lrfor negative value, electric current flows to S
1and S
4body diode in, switching tube S
1and S
4drain-source voltage reduce to 0, therefore, S
1and S
4possessed the condition that no-voltage is opened, this mode equivalent electric circuit as shown in Figure 3.
Switch mode 2 [t
1, t
2]: t
1moment, switching tube S
1and S
4no-voltage is open-minded, main inductance (L
m) and resonant inductance (L
r) electric current all continue to increase, this mode equivalent electric circuit as shown in Figure 4, continue to secondary transferring energy by former limit.
Switch mode 3 [t
2, t
3]: t
2moment, main inductance (L
m) current i
lmwith resonant inductance (L
r) current i
lrequal, secondary side diode D
1and D
4realize zero-current switching.Now, main inductance (L
m) and resonant inductance (L
r), resonant capacitance (C
r) resonance together, transformer (T) former secondary separately, input source not to Load transportation energy, and by output capacitance (C
o) energy is provided.This mode equivalent electric circuit as shown in Figure 5.
Switch mode 4 [t
3, t
4]: t
3moment, switching tube S
1, S
4turn off, resonant inductance (L
r) current i
lrfor be still on the occasion of, electric current is from switching tube S
2and S
3body diode afterflow, switching tube S
2and S
3drain-source voltage reduce to 0, therefore S
2and S
3possesses the condition that no-voltage is opened.This mode equivalent electric circuit as shown in Figure 6.
T
4after moment, second switch periods starts, and the course of work is similar, no longer repeated description.
Sum up the above-mentioned course of work known, it is open-minded that all switching tube of this converter can both realize no-voltage, and diode can realize zero-current switching, there is not diode reverse recovery problem, and therefore, all switching devices are all Sofe Switch operating states.
Claims (3)
1. a multi-resonance converter, is characterized in that:
Described multi-resonance converter is by input source (U
in), the first switching tube (S
1), second switch pipe (S
2), the 3rd switching tube (S
3), the 4th switching tube (S
4), main inductance (L
m), transformer (T), resonant inductance (L
r), resonant capacitance (C
r), secondary inductance (L
p), secondary electric capacity (C
p), the first diode (D
1), the second diode (D
2), the 3rd diode (D
3), the 4th diode (D
4), output filter capacitor (C
o) and load (R
o) form, transformer (T) comprises former limit winding (N
p) and vice-side winding (N
s);
Described input source (U
in) positive pole and the first switching tube (S
1) drain electrode and second switch pipe (S
2) drain electrode be connected, the first switching tube (S
1) source electrode be connected in the 3rd switching tube (S
3) drain electrode and resonant inductance (L
r) one end, resonant inductance (L
r) the other end be connected in main inductance (L
m) and transformer (T) former limit winding (N
p) Same Name of Ends, main inductance (L
m) the other end and transformer (T) former limit winding (N
p) non-same polarity be connected in resonant capacitance (C
r), resonant capacitance (C
r) the other end be connected in second switch pipe (S
2) source electrode and the 4th switching tube (S
4) drain electrode, the 4th switching tube (S
4) source electrode be connected in the 3rd switching tube (S
3) source electrode and input source (U
in) negative pole;
Described transformer (T) vice-side winding (N
s) Same Name of Ends be connected in secondary inductance (L
p) one end and secondary electric capacity (C
p) one end, secondary inductance (L
p) the other end be connected in secondary electric capacity (C
p) the other end, the first diode (D
1) anode and the 3rd diode (D
3) negative electrode, the first diode (D
1) negative electrode be connected in the second diode (D
2) negative electrode, output filter capacitor (C
o) one end and load (R
o) one end, transformer (T) vice-side winding (N
s) non-same polarity be connected in the second diode (D
2) anode and the 4th diode (D
4) negative electrode, the 3rd diode (D
3) anode be connected in the 4th diode (D
4) anode, output filter capacitor (C
o) the other end and load (R
o) the other end.
2. based on a multi-resonance converter for claim 1, it is characterized in that: described main inductance (L
m) replaced by the magnetizing inductance of transformer (T).
3. based on a multi-resonance converter for claim 1, it is characterized in that: described resonant inductance (L
r) partly or entirely replaced by the leakage inductance of transformer (T).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101619.6A CN104638932A (en) | 2015-03-06 | 2015-03-06 | Multi-resonant converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510101619.6A CN104638932A (en) | 2015-03-06 | 2015-03-06 | Multi-resonant converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104638932A true CN104638932A (en) | 2015-05-20 |
Family
ID=53217348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510101619.6A Pending CN104638932A (en) | 2015-03-06 | 2015-03-06 | Multi-resonant converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104638932A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207490A (en) * | 2015-09-29 | 2015-12-30 | 南京航空航天大学 | Flyback-type multi-resonant Sepics |
| CN105207486A (en) * | 2015-09-06 | 2015-12-30 | 南京航空航天大学 | Bidirectional resonance DC converter and control method thereof |
| CN106655792A (en) * | 2016-12-07 | 2017-05-10 | 广州金升阳科技有限公司 | Asymmetric half-bridge flyback circuit |
| CN110233583A (en) * | 2018-03-06 | 2019-09-13 | 深圳英飞源技术有限公司 | It is a kind of to prevent biasing circuit for reversible transducer |
| US10938310B1 (en) | 2020-01-02 | 2021-03-02 | Hong Kong Applied Science and Technology Research Institute Company, Limited | Seamless switching of resonant tanks in power converters by matching voltage gains at tank switchover |
| WO2022166086A1 (en) * | 2021-02-08 | 2022-08-11 | 昱能科技股份有限公司 | Direct-current converter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335490A (en) * | 2008-08-07 | 2008-12-31 | 英飞特电子（杭州）有限公司 | Multiple-resonant soft switch converter |
| CN103329420A (en) * | 2011-01-26 | 2013-09-25 | 株式会社村田制作所 | Switching power supply device |
| US20130265804A1 (en) * | 2012-04-05 | 2013-10-10 | Futurewei Technologies, Inc. | Apparatus for Resonant Converters |
| CN104009645A (en) * | 2014-06-16 | 2014-08-27 | 南京航空航天大学 | Series-parallel connection mixed type double-output LLC resonant converter |
-
2015
- 2015-03-06 CN CN201510101619.6A patent/CN104638932A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335490A (en) * | 2008-08-07 | 2008-12-31 | 英飞特电子（杭州）有限公司 | Multiple-resonant soft switch converter |
| CN103329420A (en) * | 2011-01-26 | 2013-09-25 | 株式会社村田制作所 | Switching power supply device |
| US20130265804A1 (en) * | 2012-04-05 | 2013-10-10 | Futurewei Technologies, Inc. | Apparatus for Resonant Converters |
| CN104009645A (en) * | 2014-06-16 | 2014-08-27 | 南京航空航天大学 | Series-parallel connection mixed type double-output LLC resonant converter |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207486A (en) * | 2015-09-06 | 2015-12-30 | 南京航空航天大学 | Bidirectional resonance DC converter and control method thereof |
| CN105207486B (en) * | 2015-09-06 | 2018-03-02 | 南京航空航天大学 | A kind of two-way resonance DC converter and its control method |
| CN105207490A (en) * | 2015-09-29 | 2015-12-30 | 南京航空航天大学 | Flyback-type multi-resonant Sepics |
| CN106655792A (en) * | 2016-12-07 | 2017-05-10 | 广州金升阳科技有限公司 | Asymmetric half-bridge flyback circuit |
| CN110233583A (en) * | 2018-03-06 | 2019-09-13 | 深圳英飞源技术有限公司 | It is a kind of to prevent biasing circuit for reversible transducer |
| US10938310B1 (en) | 2020-01-02 | 2021-03-02 | Hong Kong Applied Science and Technology Research Institute Company, Limited | Seamless switching of resonant tanks in power converters by matching voltage gains at tank switchover |
| WO2021134834A1 (en) * | 2020-01-02 | 2021-07-08 | Hong Kong Applied Science and Technology Research Institute Company Limited | Seamless switching of resonant tanks in power converters by matching voltage gains at tank switchover |
| WO2022166086A1 (en) * | 2021-02-08 | 2022-08-11 | 昱能科技股份有限公司 | Direct-current converter |
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Application publication date: 20150520 |