H - Electricity – 05 – B
Patent
H - Electricity
05
B
315/28, 315/37,
H05B 41/30 (2006.01) H05B 41/295 (2006.01) H05B 41/298 (2006.01)
Patent
CA 1317629
26362-12 ABSTRACT Electronic ballast for fluorescent lamps having a rectifying circuit for the A.C. network voltage and a chopper circuit which chops the rectified voltage with a frequency considerably higher in comparison with the network voltage into a series of pulses which are then applied to one set of the ends of the two lamp electrodes via a current-restric- ting device, the other set of ends of which are connected to an ignition circuit, whereby a current-increasing circuit is in- serted between the current-restricting circuit and the lamp electrodes which may comprise an LC-resonance circuit.
536659
Hirschmann Walter
Statnic Eugen
Tausch Wolfgang
Fetherstonhaugh & Co.
Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh
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