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1. (WO2017136853) METHOD AND CIRCUITRY FOR CONTROLLING A POWER SUPPLY
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/136853 International Application No.: PCT/US2017/016753
Publication Date: 10.08.2017 International Filing Date: 06.02.2017
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:
TEXAS INSTRUMENTS INCORPORATED [US/US]; P.O. Box 655474, Mail Station 3999 Dallas, TX 75265-5474, US
TEXAS INSTRUMENT JAPAN LIMITED [JP/JP]; 24-1, Nishi-Shinjuku 6-chome Shinjuku-ku Tokyo 160-8366, JP (JP)
Inventors:
VALLEY, Richard Lee; US
HUANG, Hong; US
KANNAN, Bharath Balaji; US
Agent:
DAVIS, Michael A., Jr.; US
KEMLER, William, B.; US
Priority Data:
15/414,42024.01.2017US
62/291,76005.02.2016US
Title (EN) METHOD AND CIRCUITRY FOR CONTROLLING A POWER SUPPLY
(FR) PROCÉDÉ ET CIRCUITS POUR COMMANDER UNE ALIMENTATION ÉLECTRIQUE
Abstract:
(EN) In described examples, a power supply has a transformer and a switch coupled to the primary side of the transformer for controlling the current flow through the primary side of the transformer. A method (700) includes determining the output voltage of the power supply (702). A first minimum switching frequency is generated for driving the switch in response to the output voltage being greater than a nominal output voltage and less than a predetermined voltage (704). A second minimum switching frequency is generated for driving the switch in response to the output voltage being equal to or greater than the predetermined voltage, wherein the first minimum switching frequency is greater than the second minimum switching frequency (706).
(FR) Dans le cadre de la présente invention, une alimentation électrique comprend un transformateur et un commutateur couplé au primaire du transformateur pour commander le passage de courant à travers le primaire du transformateur. Un procédé (700) comprend la détermination de la tension de sortie de l'alimentation électrique (702). Une première fréquence de commutation minimum est produite pour exciter le commutateur en réponse au fait que la tension de sortie est supérieure à une tension de sortie nominale et inférieure à une tension prédéterminée (704). Une seconde fréquence de commutation minimum est produite pour exciter le commutateur en réponse au fait que la tension de sortie est égale ou supérieure à la tension prédéterminée, la première fréquence de commutation minimum étant supérieure à la seconde fréquence de commutation minimum (706).
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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, 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 Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (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)
Also published as:
CN108604865