Horizontal deflection drive circuit using a plurality of FETs

Details Horizontal deflection drive circuit using a plurality of FETs Horizontal deflection drive circuit using a plurality of FETs

1998-05-27

2000-06-27

Westin, Edward P.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

315369, 315399, H01J 2970, G09G 104

Patent

active

060810793

ABSTRACT:
A horizontal deflection drive circuit using a plurality of FETs is provided, which includes a base drive current supply for receiving an oscillation pulse in a low level generated by an oscillation element, to perform switching operation, a P-channel FET for receiving the oscillation pulse in a low level generated by the oscillation element, and receiving current from the base drive current supply, to perform switching operation, an N-channel FET for receiving an oscillation pulse in a high level generated by the oscillation element, to perform switching operation, and a drive transformer for inducing current supplied from a deflection current supply according to the switching operations of the P-channel FET and N-channel FET, the P-channel FET being switched by the current supplied from the base drive current supply. Stable base drive is provided to the horizontal output transistor, to stabilize the unstable operation of the display device, due to switching loss and storage loss according to horizontal frequency variation.

REFERENCES:
patent: 5177411 (1993-01-01), Kii
patent: 5796218 (1998-08-01), Kwon et al.
patent: 5808426 (1998-09-01), Lee

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