Title:
SWITCH POWER AMPLIFIER, CONTROL METHOD THEREFOR AND CONTROL SYSTEM THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/005489
Kind Code:
A1
Abstract:
Disclosed are a switch power amplifier, a control method therefor, and a control system thereof. An output capacitor of a BUCK circuit acts as an energy buffer link to balance unbalanced energy at an input side and an output side. In addition, a rated voltage is tracked by means of controlling the difference between output voltages of two BUCK circuits to ensure the quality of an output voltage waveform. The number of power devices and passive devices required by the two BUCK circuits in the present invention are the same as those of a conventional single-phase inverter. In addition, the present invention effectively suppresses voltage and current ripples of a direct current bus, implements power decoupling, and has a wide application range.
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Inventors:
XU QIANMING (CN)
HU JIAYU (CN)
LUO AN (CN)
GUO PENG (CN)
LI JIADONG (CN)
CHEN YANDONG (CN)
HE ZHIXING (CN)
LI MINYING (CN)
HU JIAYU (CN)
LUO AN (CN)
GUO PENG (CN)
LI JIADONG (CN)
CHEN YANDONG (CN)
HE ZHIXING (CN)
LI MINYING (CN)
Application Number:
PCT/CN2022/099316
Publication Date:
February 02, 2023
Filing Date:
June 17, 2022
Export Citation:
Assignee:
GUANGDONG ZHICHENG CHAMPION GROUP CO LTD (CN)
International Classes:
H02M7/5387; H02M1/12; H02M3/157; H02M3/158
Domestic Patent References:
| WO2016124681A1 | 2016-08-11 |
Foreign References:
| CN113659860A | 2021-11-16 | |||
| JPH09135583A | 1997-05-20 | |||
| CN107947617A | 2018-04-20 |
Attorney, Agent or Firm:
CHANGSHA ZONEKEY PATENT LAW FIRM (CN)
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