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1. WO2020108179 - SELF-EXCITED PUSH-PULL CONVERTER CIRCUIT, POWER SUPPLY MODULE, AND POWER SUPPLY SYSTEM

Publication Number WO/2020/108179
Publication Date 04.06.2020
International Application No. PCT/CN2019/112799
International Filing Date 23.10.2019
IPC
H02M 3/337 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
337in push-pull configuration
H02M 3/338 2006.01
HELECTRICITY
02GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
338in a self-oscillating arrangement
CPC
H02M 3/3387
HELECTRICITY
02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
MAPPARATUS 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
3Conversion of dc power input into dc power output
22with intermediate conversion into ac
24by static converters
28using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325using devices of a triode or a transistor type requiring continuous application of a control signal
335using semiconductor devices only
338in a self-oscillating arrangement
3385with automatic control of output voltage or current
3387in a push-pull configuration
Applicants
  • 广州金升阳科技有限公司 MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 王保均 WANG, Baojun
Agents
  • 广州知友专利商标代理有限公司 GUANGZHOU ZHIYOU PATENT & TRADEMARK AGENCY CO., LTD.
Priority Data
201811441756.429.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) SELF-EXCITED PUSH-PULL CONVERTER CIRCUIT, POWER SUPPLY MODULE, AND POWER SUPPLY SYSTEM
(FR) CIRCUIT CONVERTISSEUR SYMÉTRIQUE AUTO-EXCITÉ, MODULE D'ALIMENTATION ÉLECTRIQUE ET SYSTÈME D'ALIMENTATION ÉLECTRIQUE
(ZH) 一种自激推挽式变换器电路、电源模块及电源系统
Abstract
(EN)
Disclosed in the present invention are a self-excited push-pull converter circuit, a related power supply module, and a related power supply system. The self-excited push-pull converter circuit has its start capacitor changed into two capacitors connected in series and decreasing in capacitance as the terminal voltage increases; when one of the capacitors is short-circuited, the other capacitor would decrease in capacitance because of the increase in working voltage, and thus, the capacitance actually provided by the other capacitor is not significantly different from the capacitance provided when the two capacitors connected in series are normal. The present invention can cause the failure rate caused by the start capacitor to be the square of the original failure rate, can easily solve the technical problem of high product failure rate due to capacitor failure in combination with an input filter capacitor and an output filter capacitor which are placed externally, and can also reduce product models and increase the universality in use for customers by further placing an output rectifier circuit externally.
(FR)
La présente invention concerne un circuit convertisseur symétrique auto-excité, un module d'alimentation électrique associé et un système d'alimentation électrique associé. Le condensateur de démarrage du circuit convertisseur symétrique auto-excité est remplacé par deux condensateurs connectés en série et dont la capacité décroît à mesure que la tension aux bornes croît ; quand l'un des condensateurs est court-circuité, la capacité de l'autre condensateur décroît en raison de l'accroissement de la tension de fonctionnement, et ainsi, la capacité réellement présentée par l'autre condensateur n'est pas significativement différente de la capacité présentée quand les deux condensateurs connectés en série sont normaux. La présente invention peut rendre le taux de défaillance dû au condensateur de démarrage égal au carré du taux de défaillance d'origine, peut facilement résoudre le problème technique de taux de défaillance élevé du produit dû à une défaillance de condensateur en combinaison avec un condensateur de filtre d'entrée et un condensateur de filtre de sortie qui sont placés à l'extérieur, et peut également réduire les modèles de produit et augmenter l'universalité d'utilisation pour des clients par placement en outre d'un circuit redresseur de sortie à l'extérieur.
(ZH)
本发明公开了一种自激推挽式变换器电路以及相关的电源模块和电源系统,所述的自激推挽式变换器电路的启动电容变更为两只随着端电压升高容值降低的电容串联,当其中一只电容短路,另外一只电容会因为工作电压升高导致容值下降,从而该另外一只电容实际提供的容值与两只串联电容正常时提供的容值相差不大。本发明能使得由启动电容带来的失效率为原来失效率的平方,结合将输入滤波电容和输出滤波电容外置,能轻松解决电容失效带来的产品失效率居高不下的技术问题,进一步地将输出整流电路外置,还能实现产品型号减少,客户使用的通用性增加。
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