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1. (WO2018196804) CONVERTER APPARATUS AND METHOD WITH AUXILIARY TRANSISTOR FOR PROTECTING COMPONENTS AT STARTUP
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Pub. No.: WO/2018/196804 International Application No.: PCT/CN2018/084603
Publication Date: 01.11.2018 International Filing Date: 26.04.2018
IPC:
H02M 3/158 (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
02
without intermediate conversion into ac
04
by static converters
10
using discharge tubes with control electrode or semiconductor devices with control electrode
145
using devices of a triode or transistor type requiring continuous application of a control signal
155
using semiconductor devices only
156
with automatic control of output voltage or current, e.g. switching regulators
158
including plural semiconductor devices as final control devices for a single load
Applicants:
HUAWEI TECHNOLOGIES CO., LTD. [CN/CN]; Huawei Administration Building, Bantian, Longgang District Shenzhen, Guangdong 518129, CN
Inventors:
FU, Dianbo; US
YE, Fei; US
SHI, Lei; US
Priority Data:
15/498,16326.04.2017US
Title (EN) CONVERTER APPARATUS AND METHOD WITH AUXILIARY TRANSISTOR FOR PROTECTING COMPONENTS AT STARTUP
(FR) APPAREIL CONVERTISSEUR ET PROCÉDÉ AVEC TRANSISTOR AUXILIAIRE POUR PROTÉGER DES COMPOSANTS LORS DU DÉMARRAGE
Abstract:
(EN) An apparatus and associated method are provided involving a converter circuit (100). The converter circuit (100) comprises an inductor (102) including a first terminal (101) configured to be coupled to a power source (111), and a second terminal (103). Also included is a pair of serially-coupled transistors (104A, 104B) coupled to the second terminal (103) of the inductor (102). The pair of serially-coupled transistors (104A, 104B) have a transistor intermediate node (105) therebetween. Further included is a pair of serially-coupled diodes (106A, 106B) coupled to the second terminal (103) of the inductor (102). The pair of serially-coupled diodes (106A, 106B) have a diode intermediate node (107) therebetween. A first capacitor (108) is coupled in parallel with the serially-coupled transistors (104A, 104B) and the serially-coupled diodes (106A, 106B). Further, the converter circuit (100) includes a sub-circuit (110) having a second capacitor (112) serially-coupled with an auxiliary transistor (114). The sub-circuit (110) is coupled between the transistor intermediate node (105) and the diode intermediate node (107).
(FR) L'invention concerne un appareil et un procédé associé impliquant un circuit convertisseur (100). Le circuit convertisseur (100) comprend un inducteur (102) comprenant une première borne (101) configurée pour être couplée à une source d'alimentation (111), et une seconde borne (103). L'invention concerne également une paire de transistors couplés en série (104A, 104B) couplés à la seconde borne (103) de l'inducteur (102). La paire de transistors couplés en série (104A, 104B) comprend un nœud intermédiaire de transistor (105) entre eux. L'invention concerne en outre une paire de diodes couplées en série (106A, 106B) couplées à la seconde borne (103) de l'inducteur (102). La paire de diodes couplées en série (106A, 106B) comporte un nœud intermédiaire de diode (107) entre celles-ci. Un premier condensateur (108) est couplé en parallèle aux transistors couplés en série (104A, 104B) et aux diodes couplées en série (106A, 106B). En outre, le circuit convertisseur (100) comprend un sous-circuit (110) ayant un second condensateur (112) couplé en série à un transistor auxiliaire (114). Le sous-circuit (110) est couplé entre le nœud intermédiaire de transistor (105) et le nœud intermédiaire de diode (107).
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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: English (EN)
Filing Language: English (EN)