A novel high frequency LCLC double resonant electronic ballast has been developed for gas discharge lamp applications. The ballast consists of a half-bridge inverter which switches at zero voltage crossing and an LCLC resonant circuit which converts a low ac voltage to a high ac voltage. The LCLC resonant...http://www.google.fr/patents/US5426350?utm_source=gb-gplus-shareBrevet US5426350 - High frequency transformerless electronics ballast using double inductor-capacitor resonant power conversion for gas discharge lamps
High frequency transformerless electronics ballast using double inductor ...
