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1. (WO2013048820) VARIABLE FREQUENCY RATIOMETRIC MULTIPHASE PULSE WIDTH MODULATION GENERATION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2013/048820    International Application No.:    PCT/US2012/055897
Publication Date: 04.04.2013 International Filing Date: 18.09.2012
IPC:
H03K 7/08 (2006.01), G06F 1/04 (2006.01)
Applicants: MICROCHIP TECHNOLOGY INCORPORATED [US/US]; 2355 West Chandler Blvd. Chandler, AZ 85224-6199 (US)
Inventors: KRIS, Bryan; (US)
Agent: SLAYDEN, II, Bruce, W.; KING & SPALDING LLP 401 Congress Ave., Suite 3200 Austin, TX 78701 (US)
Priority Data:
13/248,271 29.09.2011 US
Title (EN) VARIABLE FREQUENCY RATIOMETRIC MULTIPHASE PULSE WIDTH MODULATION GENERATION
(FR) GÉNÉRATION DE MODULATION DE LARGEUR D'IMPULSION (PWM) MULTIPHASE RATIOMÉTRIQUE À FRÉQUENCE VARIABLE
Abstract: front page image
(EN)Groups of phase shifted PWM signals are generated that maintain their duty-cycle and phase relationships as a function of the period of the PWM signal frequency. The multiphase PWM signals are generated in a ratio-metric fashion so as to greatly simplify and reduce the computational workload for a processor used in a PWM system. The groups of phase shifted PWM signals may also be synchronized with and automatically scaled to match external synchronization signals.
(FR)L'invention concerne la génération de groupes de signaux PWM déphasés qui conservent leurs relations de cycle d'utilisation et de phase en fonction de la période de la fréquence de signaux PWM. Les signaux PWM multiphases sont générés de manière ratiométrique pour simplifier et réduire considérablement la charge de calcul du processeur utilisé dans un système PWM. Les groupes de signaux PWM déphasés peuvent aussi être synchronisés avec des signaux de synchronisation externes et étalonnés automatiquement pour être en correspondance avec ceux-ci.
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, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, 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, 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 (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, 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, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)