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1. (EP2074694) AUTOMATIC ZERO VOLTAGE SWITCHING MODE CONTROLLER

Office : European Patent Office
Application Number: 08755123 Application Date: 07.05.2008
Publication Number: 2074694 Publication Date: 01.07.2009
Publication Kind : B1
Designated States: AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LI, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR
Prior PCT appl.: Application Number:US2008062909 ; Publication Number: Click to see the data
IPC:
H03F 3/217
H02M 3/00
H ELECTRICITY
03
BASIC ELECTRONIC CIRCUITRY
F
AMPLIFIERS
3
Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
20
Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
21
with semiconductor devices only
217
Class D power amplifiers; Switching amplifiers
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
CPC:
H03F 3/217
H02M 7/48
H02M 2001/0012
Applicants: HARMAN INT IND
Inventors: STANLEY GERALD R
Priority Data: 2008062909 07.05.2008 US
92805107 07.05.2007 US
Title: (DE) AUTOMATISCHE NULLSPANNUNGSCHALTSTEUERUNG
(EN) AUTOMATIC ZERO VOLTAGE SWITCHING MODE CONTROLLER
(FR) DISPOSITIF DE COMMANDE À MODE DE COMMUTATION À TENSION NULLE AUTOMATIQUE
Abstract: front page image
(EN) A switching DC to AC power converter includes an automatic zero voltage switching (ZVS) mode controller. The automatic zero voltage switching mode controller may adjust a ZVS dead-time in accordance with a range of load currents being supplied by the power converter that range from quiescent conditions to a predetermined loading level of the power converter. The variable ZVS dead-time may be larger nearer to quiescent conditions, and become progressively smaller as load currents increase. Outside a predetermined range of load currents, the variable ZVS dead-time may be disabled or minimized.
(FR) Cette invention se rapporte à un convertisseur de courant DC/CA par commutation comprenant un dispositif de commande à mode de commutation à tension nulle (ZVS) automatique. Le dispositif de commande à mode de commutation à tension nulle automatique peut ajuster un temps mort ZVS conformément à une plage de courants de charge envoyés par le convertisseur de courant. Ces courants vont de conditions de repos à un niveau de charge prédéterminé du convertisseur de courant. Le temps mort ZVS variable peut être plus grand plus près des conditions de repos, et diminuer progressivement lorsque les courants de charge augmentent. En dehors d'une plage de courants de charge prédéterminée, le temps mort ZVS variable peut être désactivé ou minimisé.
Also published as:
JP2010504730CN101558558WO/2008/137935