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Machine translation
1. (WO2011143778) POWER SUPPLY CIRCUITS FOR AUDIO AMPLIFIERS
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/143778    International Application No.:    PCT/CA2011/050314
Publication Date: 24.11.2011 International Filing Date: 20.05.2011
IPC:
H03F 1/00 (2006.01), H02M 1/14 (2006.01), H02M 7/04 (2006.01), H03F 3/181 (2006.01), H03F 3/20 (2006.01)
Applicants: AUDERA INTERNATIONAL SALES INC. [BB/BB]; Chancery House, High Street Bridgetown (BB) (For All Designated States Except US).
FRENCH, John B. [CA/CA]; (CA) (For US Only).
GHOLAMI, Farhad [CA/CA]; (CA) (For US Only).
MASON, Andrew J. [CA/CA]; (CA) (For US Only).
HANSEN, Douglas W. [CA/CA]; (CA) (For US Only).
KALYTA, Gennady H. [CA/CA]; (CA) (For US Only).
LIU, Xue Jun [CA/CA]; (CA) (For US Only)
Inventors: FRENCH, John B.; (CA).
GHOLAMI, Farhad; (CA).
MASON, Andrew J.; (CA).
HANSEN, Douglas W.; (CA).
KALYTA, Gennady H.; (CA).
LIU, Xue Jun; (CA)
Agent: BERESKIN & PARR LLP/S.E.N.C.R.L., S.R.L.; 40 King Street West Suite 4000 Toronto, Ontario M5H 3Y2 (CA)
Priority Data:
61/346,732 20.05.2010 US
Title (EN) POWER SUPPLY CIRCUITS FOR AUDIO AMPLIFIERS
(FR) CIRCUITS D'ALIMENTATION POUR AMPLIFICATEURS AUDIO
Abstract: front page image
(EN)Several amplifier power circuits and methods for powering an audio amplifier are described. An AC line voltage is rectified and selectively coupled to a filter capacitor in response to a switch control signal. The filter capacitor is charged to generate an amplifier supply voltage signal, which is used to power the audio amplifier. A controller generates the switch control signal in accordance with a leading control approach or a lagging control approach.
(FR)La présente invention concerne plusieurs circuits d'alimentation d'amplificateurs et plusieurs procédés d'alimentation d'un amplificateur audio. Une tension alternative du secteur est redressée et couplée sélectivement à un condensateur de filtrage en réponse à un signal de commande de commutation. Le condensateur de filtrage est chargé afin de produire un signal de tension d'alimentation d'amplificateur utilisé pour alimenter l'amplificateur audio. Un dispositif de commande produit le signal de commande de commutation conformément à une approche de commande en avance ou une approche de commande en retard.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, 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, PE, PG, PH, PL, PT, RO, RS, RU, 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, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, 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)