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1. WO2020108301 - RESONANT DRIVING CIRCUIT

Publication Number WO/2020/108301
Publication Date 04.06.2020
International Application No. PCT/CN2019/117896
International Filing Date 13.11.2019
IPC
H02M 1/08 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
1Details of apparatus for conversion
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 3/335 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
CPC
H02M 1/08
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
1Details of apparatus for conversion
08Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
H02M 2001/0048
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
1Details of apparatus for conversion
0048Circuits or arrangements for reducing losses
H02M 3/33576
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
33569having several active switching elements
33576having at least one active switching element at the secondary side of an isolation transformer
Applicants
  • 广州金升阳科技有限公司 MORNSUN GUANGZHOU SCIENCE & TECHNOLOGY CO., LTD. [CN]/[CN]
Inventors
  • 吴辉 WU, Hui
  • 马守栋 MA, Shoudong
  • 贺颖 HE, Ying
Agents
  • 广州知友专利商标代理有限公司 GUANGZHOU ZHIYOU PATENT & TRADEMARK AGENCY CO., LTD.
Priority Data
201811414648.826.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) RESONANT DRIVING CIRCUIT
(FR) CIRCUIT D'ATTAQUE RÉSONANT
(ZH) 一种谐振驱动电路
Abstract
(EN)
Disclosed is a resonant driving circuit. By means of using a transformer to convert an input capacitance of a power tube to a primary side to participate in the oscillation of a voltage-controlled oscillator, a driving circuit works in a resonant state; moreover, a capacitance value of a variable capacitor is adjusted by means of an external control signal so as to realize an adjustable resonant frequency, and a bias voltage is applied on a secondary winding of the transformer, so that an intersection of driving voltages having a difference of 180° can be flexibly set according to requirements, thereby greatly reducing the influence of a power tube parameter on the performance of a switch converter. The present invention can make a driving circuit work in a resonant state and have minimum loss, and also can flexibly set a bias voltage so as to minimize the influence of the driving circuit on the performance of a switch converter. The circuit is simple, easy to realize, and has a stronger application value.
(FR)
La présente invention concerne un circuit d'attaque résonant. Au moyen d'un transformateur destiné à convertir une capacité d'entrée d'un tube d'alimentation en un côté primaire pour participer à l'oscillation d'un oscillateur commandé en tension, un circuit d'attaque fonctionne dans un état résonant ; de plus, une valeur de capacité d'un condensateur variable est ajustée au moyen d'un signal de commande externe de façon à réaliser une fréquence de résonance réglable, et une tension de polarisation est appliquée sur un enroulement secondaire du transformateur, de telle sorte qu'une intersection de tensions de commande ayant une différence de 180° puisse être définie de manière flexible selon les exigences, ce qui permet de réduire considérablement l'influence d'un paramètre de tube d'alimentation sur la performance d'un convertisseur de commutation. La présente invention peut réaliser un travail de circuit d'attaque dans un état résonant et avoir une perte minimale, et peut également régler de manière flexible une tension de polarisation de façon à réduire au minimum l'influence du circuit d'attaque sur la performance d'un convertisseur de commutation. Le circuit est simple, facile à réaliser, et a une importante valeur d'application.
(ZH)
一种谐振驱动电路,通过利用变压器将功率管的输入电容折合到原边参与到压控振荡器的振荡,使得驱动电路工作在谐振状态,同时通过外部控制信号调节可变电容容值实现谐振频率可调,在变压器副边绕组上增加偏置电压,使得互差180°的驱动电压的交点可根据需求进行灵活设置,能够极大地降低功率管参数对开关变换器性能的影响。既能够让驱动电路工作在谐振状态且损耗最小,又能够灵活设置偏置电压使得驱动电路对开关变换器的性能影响降到最低,电路简单,实现容易,具有较强的应用价值。
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Latest bibliographic data on file with the International Bureau