Title:
DUAL-MODE CHARGE CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2024/066480
Kind Code:
A9
Abstract:
A dual-mode charge control method for performing output voltage control on a load coupled to a circuit having a resonant tank. The method comprises: detecting an input voltage of a resonant tank, a resonant current of the resonant tank, an output current of a load, and an output voltage of the load; determining the current load condition according to the output current, and when the load is in a light-load or no-load state, performing single-line charge control; in the single-line charge control, compensating for the output voltage to generate an upper critical voltage, and operating the resonant current by means of a resettable integrator to obtain a resonant voltage; comparing the resonant voltage with the upper critical voltage to generate a first control signal, wherein the resettable integrator is reset when the resonant voltage is greater than or equal to the upper critical voltage; generating a second control signal complementary to the first control signal by means of a pulse conduction time replicator; and providing the first control signal and the second control signal to respectively control a first power switch and a second power switch of a resonance circuit.
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Inventors:
PENG BO-RUEI (CN)
LIN CHANG-CHUNG (CN)
LIN YU-JEN (CN)
HUANG CHIA-HSIONG (CN)
LIN CHANG-CHUNG (CN)
LIN YU-JEN (CN)
HUANG CHIA-HSIONG (CN)
Application Number:
PCT/CN2023/099861
Publication Date:
May 02, 2024
Filing Date:
June 13, 2023
Export Citation:
Assignee:
DELTA ELECTRONICS INC (CN)
International Classes:
H02M3/335
Attorney, Agent or Firm:
LUNG TIN INTELLECTUAL PROPERTY AGENT LTD. (CN)
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