Cathode ray tube display apparatus

Details Cathode ray tube display apparatus Cathode ray tube display apparatus

2007-05-22

2007-05-22

Vo, Tuyet (Department: 2821)

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

C315S387000, C348S637000

Reexamination Certificate

active

10930836

ABSTRACT:
A cathode ray tube display apparatus having a fly back transformer (FBT) to induce and output high voltage, the CRT apparatus including: a power controller controlling source power input into the FBT; a DC power detector to output a shut-off signal to shut off an operation of the power controller if the DC power detector is supplied with a direct current signal. The CRT display apparatus provides for normal operation of a system while protecting circuit components from abnormal operation of the system.

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