Horizontal deflection circuit for television systems

Details Horizontal deflection circuit for television systems Horizontal deflection circuit for television systems

1979-03-01

1980-05-27

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358243, H01J 2970, H01J 2976

Patent

active

042052599

ABSTRACT:
To protect the horizontal deflection circuit against reverse polarity high-voltage pulses derived from an inductance, which is provided to rapidly drain stored charge carriers of an output transistor thereof, a protective circuit is connected between the driver stage and the base of the output transistor which includes a transistor controlled by the driver stage, for example by a reverse polarity signal which renders the parallel connected transistor conductive, thereby short-circuiting the reverse polarity pulse with respect to the driver stage and protecting the driver stage thereagainst.

REFERENCES:
patent: 4042858 (1977-08-01), Collette et al.
patent: 4042859 (1977-08-01), Kashiwagi

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