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1. WO2020134672 - ACF CONVERTER, VOLTAGE CONVERSION METHOD AND ELECTRONIC DEVICE

Publication Number WO/2020/134672
Publication Date 02.07.2020
International Application No. PCT/CN2019/118173
International Filing Date 13.11.2019
IPC
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 3/33569
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
Y02B 70/10
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
70Technologies for an efficient end-user side electric power management and consumption
10Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Applicants
  • 华为技术有限公司 HUAWEI TECHNOLOGIES CO., LTD. [CN]/[CN]
Inventors
  • 望庆磊 WANG, Qinglei
  • 侯庆慧 HOU, Qinghui
  • 孙程豪 SUN, Chenghao
  • 刘伟 LIU, Wei
Agents
  • 北京同达信恒知识产权代理有限公司 TDIP & PARTNERS
Priority Data
201811600788.426.12.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) ACF CONVERTER, VOLTAGE CONVERSION METHOD AND ELECTRONIC DEVICE
(FR) CONVERTISSEUR ACF, PROCÉDÉ DE CONVERSION DE TENSION ET DISPOSITIF ÉLECTRONIQUE
(ZH) 一种ACF变换器、电压变换方法及电子设备
Abstract
(EN)
Disclosed are an ACF converter, a voltage conversion method and an electronic device. The ACF converter comprises a transformer module (1011), a clamping module (1012) and a first controller (102), wherein the first controller (102) is used to control the clamping module (1012) to start to receive leakage inductance power of the transformer module (1011) after the transformer module (1011) starts secondary discharge; the first controller (102) is also used to control the clamping module (1012) to release the leakage inductance power to the transformer module (1011) after the clamping module (1012) is controlled to stop receiving the leakage inductance power of the transformer module (1011); and the leakage inductance power released to the transformer module (1011) by the clamping module (1012) is used for the transformer module (1011) to restore a soft switching state according to the leakage inductance power. In the process of transferring the leakage inductance power to a clamping capacitor, the clamping module (1012) is in an ON state, so that the loss of leakage inductance power caused by the clamping module (1012) is reduced, thereby reducing the loss of the ACF converter overall.
(FR)
L’invention concerne un convertisseur ACF, un procédé de conversion de tension et un dispositif électronique. Le convertisseur ACF comprend un module de transformateur (1011), un module de calage (1012) et un premier système de commande (102), le premier système de commande (102) servant à commander au module de calage (1012) de commencer à recevoir une puissance d’inductance de fuite du module de transformateur (1011) après que le module de transformateur (1011) commence la décharge secondaire ; le premier système de commande (102) sert également à commander au module de calage (1012) de libérer la puissance d’inductance de fuite du module de transformateur (1011) après que le module de calage (1012) est commandé pour arrêter de recevoir la puissance d’inductance de fuite du module de transformateur (1011) ; et la puissance d’inductance de fuite libérée vers le module de transformateur (1011) par le module de calage (1012) sert au module de transformateur (1011) à rétablir un état de commutation mou en fonction de la puissance d’inductance de fuite. Lors du processus consistant à transférer la puissance d’inductance de fuite à un condensateur de calage, le module de calage (1012) est dans un état actif, de sorte que la perte de puissance d’inductance de fuite causée par le module de calage (1012) est réduite, réduisant ainsi la perte du convertisseur ACF en général.
(ZH)
一种ACF变换器、电压变换方法及电子设备,其中ACF变换器包括变压器模块(1011)、钳位模块(1012)和第一控制器(102);第一控制器(102),用于在变压器模块(1011)开启副边放电后,控制钳位模块(1012)开启接收变压器模块(1011)的漏感电量;该第一控制器(102),还用于在控制钳位模块(1012)停止接收变压器模块(1011)的漏感电量后,控制钳位模块(1012)向变压器模块(1011)释放漏感电量;其中,钳位模块(1012)向变压器模块(1011)释放的漏感电量用于变压器模块(1011)根据漏感电量恢复软开关状态。由于在漏感电量向钳位电容转移的过程中,钳位模块(1012)为开启状态,降低了钳位模块(1012)对漏感电量造成的损耗,从而有利于整体上降低ACF变换器的损耗。
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