Title:
低圧放電ランプの点灯回路
Document Type and Number:
Japanese Patent JP4261628
Kind Code:
B2
Abstract:
A circuit to drive a low pressure gas discharge lamp has a load circuit subjecting the lamp to high frequency power, a high frequency generator to operate the load circuit and a control circuit for it. The circuit is designed for an electrode-free lamp and has a freely oscillating system working near resonance. The working frequency is over 70 kilohertz. The circuit is designed to generate the necessary voltage for the control of at least one gate of an FET of the generator by a resonance voltage magnification. The control circuit has a transformer with a ferrite core designed to work in the linear, ie, non-saturated, part of the B-H curve.
Inventors:
Eugen Totnik
Application Number:
JP34446497A
Publication Date:
April 30, 2009
Filing Date:
November 28, 1997
Export Citation:
Assignee:
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MIT BESCHRANKTER HAFTUNG
International Classes:
H05B41/24; H05B41/28; H05B41/282
Domestic Patent References:
| JP8264291A | ||||
| JP5508965A | ||||
| JP7298636A |
Attorney, Agent or Firm:
Iwao Yamaguchi