Inverter circuit for use with discharge tube

Details Inverter circuit for use with discharge tube Inverter circuit for use with discharge tube

1994-08-29

1996-02-27

Wong, Peter S.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 20, 363 56, H02M 3335

Patent

active

054954053

ABSTRACT:
An inverter circuit for use with a discharge tube or lamp such as a cold-cathode fluorescent lamp, a hot-cathode fluorescent lamp, a mercury arc lamp, a metal halide lamp, a neon lamp or the like is provided. The secondary side circuit of a step-up transformer used in the inverter circuit is constructed as a high frequency power supply circuit and a parasitic or stray capacitance produced in the secondary side circuit of the step-up transformer is utilized as a portion or component of a resonance circuit consisting of an inductive ballast or the inductive output of a leakage flux type step-up transformer and the parasitic capacitance.

REFERENCES:
patent: 4027200 (1977-05-01), Sahara et al.
patent: 4212053 (1980-07-01), Sichenzia
patent: 4281374 (1981-07-01), Archer
patent: 4377842 (1983-03-01), Cambier
patent: 4572990 (1986-02-01), Leale et al.
patent: 4675796 (1987-06-01), Gautherin et al.
patent: 4698741 (1987-10-01), Pacholok
patent: 4870554 (1989-09-01), Smith
patent: 5309344 (1994-05-01), Smith

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