H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/37
H05B 41/26 (2006.01) H02M 5/458 (2006.01) H05B 41/282 (2006.01) H02M 7/5383 (2006.01)
Patent
CA 1097727
D-20,319 LAMP BALLAST CIRCUIT ABSTRACT OF THE DISCLOSURE A highly efficient tuned oscillator ballast circuit especially suitable for a flourescent 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 give reference level. A transient compensating circuit to protect the oscillator components from initial or "start-up" transients is also included.
304305
Gte Sylvania Incorporated
R. William Wray & Associates
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