H - Electricity – 05 – B
Patent
H - Electricity
05
B
321/55
H05B 41/14 (2006.01) H02M 7/538 (2006.01)
Patent
CA 1189140
INVERTER CIRCUIT WITH SYMMETRY CONTROL ABSTRACT OF THE DISCLOSURE An inverter circuit having transistor switches connected to alternately and repetitively apply a-c electrical energy to a load such as a fluorescent lamp. An oscillator control circuit supplies control pulses to the transistor switches in a manner to control their switching to insure a symmetrical waveform at the load. D-C power for the oscillator control circuit is obtained by rectification of the a-c load energy, and the oscillator frequency is adjustable by means of a control voltage.
418295
Company General Electric
Eckersley Raymond A.
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