Television receiver

Details Television receiver Television receiver

H - Electricity

04

N

350/79

H04N 9/12 (2006.01) H04N 5/14 (2006.01) H04N 9/31 (2006.01)

Patent

CA 1250364

ABSTRACT OF THE DISCLOSURE A television receiver is disclosed, which includes a cathode ray tube, a beam current detection circuit having a current source circuit connected to the cathode of the cathode ray tube at a first terminal side of a power supply source, a current sink circuit connected to the cathode of the cathode ray tube at a second terminal side of the power supply source, a subtracting circuit for subtracting the current of the current source circuit from the current of the current sink circuit, and an utilization circuit connected to the subtracting circuit, whereby the ABL(automatic brightness limiting) circuit can be correctly operated without being affected by the parasitic capacity and so on and hence the light-emission ability of the cathode ray tube can be presented at maximum.

470505

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