Lamp ballast circuit

Details Lamp ballast circuit Lamp ballast circuit

H - Electricity

05

B

315/37

H05B 41/36 (2006.01) H02M 5/458 (2006.01) H05B 41/282 (2006.01)

Patent

CA 1103749

D-20,321 LAMP BALLAST CIRCUIT ABSTRACT OF THE DISCLOSURE A highly efficient tuned oscillator ballast circuit especially suitable for a fluorescent lamp load includes an oscillator circuit coupled to a pulsed DC potential source and having a tuned output circuit coupled to a load circuit, to a drive circuit for the oscillator which is dependent upon current flow in the load circuit and to a rectifier and charge storage and isolation and applying network coupled to the pulsed DC potential source and providing energy thereto whenever the potential decreases below a given reference level. A transient compensating circuit to protect the oscillator components from initial or "start up" transients is also included.

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