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1. (WO2019023996) LLC RESONANCE DIRECT-CURRENT CONVERTER AND CONTROL METHOD AND SYSTEM THEREFOR
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Pub. No.: WO/2019/023996 International Application No.: PCT/CN2017/095647
Publication Date: 07.02.2019 International Filing Date: 02.08.2017
IPC:
H02M 3/335 (2006.01)
H ELECTRICITY
02
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
M
APPARATUS 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
3
Conversion of dc power input into dc power output
22
with intermediate conversion into ac
24
by static converters
28
using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
325
using devices of a triode or a transistor type requiring continuous application of a control signal
335
using semiconductor devices only
Applicants:
深圳驿普乐氏科技有限公司 SHENZHEN EN-PLUS TECHNOLOGIES CO., LTD. [CN/CN]; 中国广东省深圳市 南山区西丽街道科技园北区朗山路28号3栋三楼东 3/F Bldg. 3 East, No. 28, Langshan Road, High-tech lndustrial Park North Area, Xili Street, Nanshan District Shenzhen, Guangdong 518000, CN
Inventors:
戴国峰 DAI, Guofeng; CN
程中原 CHENG, Zhongyuan; CN
郭冬寿 GUO, Dongshou; CN
Agent:
深圳鼎合诚知识产权代理有限公司 DHC IP ATTORNEYS; 中国广东省深圳市 福田区金田路与福华路交汇处现代商务大厦2201 Suite 2201, Modern International Commercial Building Cross of Fuhua Road and Jintian Road, Futian District Shenzhen, Guangdong 518048, CN
Priority Data:
Title (EN) LLC RESONANCE DIRECT-CURRENT CONVERTER AND CONTROL METHOD AND SYSTEM THEREFOR
(FR) CONVERTISSEUR DE COURANT CONTINU À RÉSONANCE LLC ET PROCÉDÉ AINSI QUE SYSTÈME DE COMMANDE ASSOCIÉS
(ZH) 一种LLC谐振直流变换器及其控制方法和系统
Abstract:
(EN) An LLC resonance direct-current converter and a control method and a control system (50) therefor, the control system (50) comprising a current sampling circuit (510) and a control module. The electric current of an LLC resonant cavity when a bridge arm switch is turned off is sampled by means of the current sampling circuit (510). The control module increases or decreases the dead time according to the current magnitude of the LLC resonant cavity so as to reduce the switch loss of the bridge arm switch. By means of adjusting the magnitude of the dead time, the switch loss of the bridge arm switch is reduced and the overall efficiency of the LLC resonance direct-current converter is improved.
(FR) L'invention concerne un convertisseur de courant continu à résonance LLC et un procédé de commande ainsi qu'un système de commande (50) associés, le système de commande (50) comprenant un circuit d'échantillonnage de courant (510) et un module de commande. Le courant électrique d'une cavité résonante LLC lorsqu'un commutateur de branche de pont est éteint est échantillonné au moyen du circuit d'échantillonnage de courant (510). Le module de commande augmente ou diminue le temps mort en fonction de l'amplitude de courant de la cavité résonante LLC de manière à réduire la perte de commutation du commutateur de branche de pont. Au moyen du réglage de l'amplitude du temps mort, la perte de commutation du commutateur de branche de pont est réduite et l'efficacité globale du convertisseur de courant continu à résonance LLC est améliorée.
(ZH) 一种LLC谐振直流变换器及其控制方法和控制系统(50),其中,所述控制系统(50)包括电流采样电路(510)和控制模块。通过电流采样电路(510)采样桥臂开关关断时LLC谐振腔的电流。控制模块则根据所述LLC谐振腔的电流大小,增大或减小死区时间,以降低桥臂开关的开关损耗。通过调节死区时间的大小,降低了桥臂开关的开关损耗,提高了LLC谐振直流变换器的整体效率。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)