Over-current protection circuit for use in television horizontal

Details Over-current protection circuit for use in television horizontal Over-current protection circuit for use in television horizontal

1996-07-01

1998-06-09

Issing, Gregory C.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315386, 315387, 348380, G09G 104, H01J 2954, H04N 568

Patent

active

057640025

ABSTRACT:
A horizontal deflection circuit includes circuitry for protecting the horizontal output transistor from failure due to an over-current condition. The circuitry includes a current detector for detecting the current in the collector-emitter path of the horizontal output transistor, and a interrupter for interrupting the drive signal to the horizontal output transistor when the detected current exceed a predetermined level.

REFERENCES:
patent: 4042858 (1977-08-01), Collette et al.
patent: 4074323 (1978-02-01), Griffey
patent: 4185234 (1980-01-01), Baker
patent: 4412157 (1983-10-01), Gamboa
patent: 4885509 (1989-12-01), Ikeuchi

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