Title:
PARALLEL-CONNECTED AND STAGGERED BUCK CONVERTERS, AND CONTROL METHOD
Document Type and Number:
WIPO Patent Application WO/2016/101536
Kind Code:
A1
Abstract:
The present invention provides parallel-connected and staggered BUCK converters, and a control method. The BUCK converter comprises: a direct voltage source; parallel-connected and staggered BUCK circuits connected to the direct voltage source, wherein the parallel-connected and staggered BUCK circuits comprise two groups of rectification switching tubes and a group of continuous-current switching tubes connected to each group of the rectification switching tubes, and each group of rectification switching tubes and each group of continuous-current switching tubes comprise two parallel-connected MOSFETs; a sampling circuit, for sampling output voltages and output currents of the parallel-connected and staggered BUCK circuits, and outputting sampling results; a digital signal processor, connected to the sampling circuit, and used for processing the sampling results according to a fuzzy genetic algorithm, so as to obtain a duty cycle signal, and outputting pulse-width modulation (PWM) waves corresponding to the duty cycle signal; and a PWM driver, separately connected to the parallel-connected and staggered BUCK circuits and the digital signal processor, and used for, according to the PWM waves, controlling the 180-degree conduction of the two groups of rectification switching tubes and controlling the 180-degree conduction of the two groups of continuous-current switching tubes.
Inventors:
ZHOU XUEGANG (CN)
YANG AN (CN)
YANG AN (CN)
Application Number:
PCT/CN2015/080521
Publication Date:
June 30, 2016
Filing Date:
June 01, 2015
Export Citation:
Assignee:
ZTE CORP (CN)
International Classes:
H02M3/158; H02M3/157
Foreign References:
| CN103973114A | 2014-08-06 | |||
| CN102931841A | 2013-02-13 | |||
| CN103501115A | 2014-01-08 | |||
| US6727605B1 | 2004-04-27 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
北京康信知识产权代理有限责任公司 (CN)
北京康信知识产权代理有限责任公司 (CN)
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