Tuned oscillator ballast circuit

Details Tuned oscillator ballast circuit Tuned oscillator ballast circuit

H - Electricity

05

B

315/37

H05B 37/02 (2006.01) H05B 39/04 (2006.01) H05B 41/285 (2006.01) H05B 41/36 (2006.01)

Patent

CA 1103747

SINUSOIDAL WAVE OSCILLATOR BALLAST CIRCUIT ABSTRACT OF THE DISCLOSURE A sinusoidal wave oscillator ballast circuit includes a tuned oscillator coupled to a DC rectifier means coupled by a power factor correction circuit to an AC potential source. The oscillator is coupled to an inductor means including a first and second transformer means with the secondary winding of the first transformer means coupled to the oscillator, the primary of the first transformer means in series connection with a capacitor and the primary winding of the second transformer means to form a resonant circuit, a first secondary winding of the second transformer means coupled to a lamp circuit to form a load circuit shunting the capacitor of the resonant circuit and a second secondary winding of the second transformer means having opposite ends connected by clamping diodes to the DC rectifier mean. Means for compensating for "storage time" of the transistor of the oscillator and for conditioning the line to transients and radio frequency interference (RFI) are also provided.

290517

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