WO2024147800A1 - Convertisseur résonant llc à fréquence de résonance variable - Google Patents
Convertisseur résonant llc à fréquence de résonance variable Download PDFInfo
- Publication number
- WO2024147800A1 WO2024147800A1 PCT/US2023/026389 US2023026389W WO2024147800A1 WO 2024147800 A1 WO2024147800 A1 WO 2024147800A1 US 2023026389 W US2023026389 W US 2023026389W WO 2024147800 A1 WO2024147800 A1 WO 2024147800A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resonant
- coupled
- variable
- power switch
- variable impedance
- Prior art date
Links
- 230000000295 complement effect Effects 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 11
- 238000004804 winding Methods 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 15
- 230000005669 field effect Effects 0.000 claims description 7
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims 4
- 230000010363 phase shift Effects 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
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
- H02M3/01—Resonant DC/DC converters
- H02M3/015—Resonant DC/DC converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuit
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/4815—Resonant converters
- H02M7/4818—Resonant converters with means for adaptation of resonance frequency, e.g. by modification of capacitance or inductance of resonance circuits
Definitions
- Resonant converters may convert an input signal into a DC voltage.
- Resonant converters may include switches in a half-bridge or a full-bridge configuration, and a resonant circuit.
- the resonant circuit may be used to control the resonant frequency in the resonant converter.
- the output of the resonant circuit may be input to the first winding of a transformer, and a load may be coupled across the second winding of the transformer.
- the resonant circuit may include a tank circuit connected in series with the load.
- the resonant circuit When used in a resonant converter, the resonant circuit may function as a voltage divider between the resonant circuit impedance and the load impedance.
- the impedance of the load Under lightload conditions, the impedance of the load is very large compared to the impedance of the tank circuit, so it becomes difficult to regulate the output, since this requires the frequency to approach infinity as the load approaches zero. Even at nominal loads, wide frequency variation is required to regulate the output.
- a resonant circuit may include a tank circuit coupled in parallel with a load. When used in a resonant converter, the resonant circuit may shunt current or voltage from the load through the parallel tank circuit.
- a parallel resonator requires large amounts of circulating current. This makes it difficult to apply parallel resonant topologies in applications with high power density or large load variations.
- An LLC resonant converter includes a resonant circuit, or tank circuit, of two inductors and one capacitor.
- the first inductor may be a resonant inductor, and the second inductor may be one winding of a transformer.
- An LLC resonant circuit resonates at a specific frequency, called the resonant frequency. LLC resonant converters including LLC tank circuits can achieve higher switching frequencies and lower switching losses than configurations with fewer components.
- LLC resonant converters may have a limited input voltage range due to the fixed resonant frequency of the resonant circuit. There is a need for LLC resonant converters with adjustable resonant circuits.
- an LLC resonant converter with an adjustable impedance may enable an adjustable resonant frequency and may enable voltage regulation over a wide range of input voltages.
- a resonant converter including a first power switch with a first node coupled to a first phase of a complementary input signal, and a second node coupled to a common node, a second power switch with a first node coupled to a second phase of the complementary input signal, and a second node coupled to the common node, wherein the common node coupled to a resonant circuit, the resonant circuit comprising a resonant inductor with a first coupled inductor winding and a second coupled inductor winding, the first coupled inductor winding coupled between the common node and a first plate of a capacitor and the second coupled inductor winding coupled in parallel with a variable impedance circuit, the variable impedance circuit to adjust the resonant frequency of the resonant circuit, and a transformer with a first transformer winding and a second transformer winding, the first transformer winding coupled between the second plate of the capacitor and a return and the second transformer winding coupled to
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
La présente invention concerne un convertisseur résonant comprenant un commutateur côté haut et un commutateur côté bas, tous deux couplés à un noeud commun et entraînés par un signal d'entrée complémentaire. Le noeud commun commande une bobine d'induction couplée, la bobine d'induction couplée étant connectée en parallèle avec une impédance variable. La bobine d'induction couplée peut être couplée en série avec un condensateur et un transformateur. L'impédance variable peut être ajustée pour modifier la fréquence de résonance du convertisseur résonant.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202363437191P | 2023-01-05 | 2023-01-05 | |
| US63/437,191 | 2023-01-05 | ||
| US18/127,703 | 2023-03-29 | ||
| US18/127,703 US20240235419A1 (en) | 2023-01-05 | 2023-03-29 | Llc resonant converter with variable resonant frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024147800A1 true WO2024147800A1 (fr) | 2024-07-11 |
Family
ID=87468575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2023/026389 WO2024147800A1 (fr) | 2023-01-05 | 2023-06-28 | Convertisseur résonant llc à fréquence de résonance variable |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2024147800A1 (fr) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01264562A (ja) * | 1988-04-12 | 1989-10-20 | Mitsubishi Electric Corp | 直列共振形ｄｃ／ｄｃコンバータ |
| US20150124487A1 (en) * | 2013-11-04 | 2015-05-07 | Futurewei Technologies, Inc. | Adjustable Resonant Apparatus for Power Converters |
| EP3065284A1 (fr) * | 2015-03-05 | 2016-09-07 | Mitsubishi Electric R&D Centre Europe B.V. | Convertisseur comprenant un pont d'entrée de commutation, cuve de résonance, ainsi que circuit de redressement |
| US20210132892A1 (en) * | 2019-11-04 | 2021-05-06 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
-
2023
- 2023-06-28 WO PCT/US2023/026389 patent/WO2024147800A1/fr unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01264562A (ja) * | 1988-04-12 | 1989-10-20 | Mitsubishi Electric Corp | 直列共振形ｄｃ／ｄｃコンバータ |
| US20150124487A1 (en) * | 2013-11-04 | 2015-05-07 | Futurewei Technologies, Inc. | Adjustable Resonant Apparatus for Power Converters |
| EP3065284A1 (fr) * | 2015-03-05 | 2016-09-07 | Mitsubishi Electric R&D Centre Europe B.V. | Convertisseur comprenant un pont d'entrée de commutation, cuve de résonance, ainsi que circuit de redressement |
| US20210132892A1 (en) * | 2019-11-04 | 2021-05-06 | Samsung Electronics Co., Ltd. | Display apparatus and control method thereof |
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