Voltage rise suppression circuit and panel television

Details Voltage rise suppression circuit and panel television Voltage rise suppression circuit and panel television

2007-04-18

2010-02-09

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S071000, C361S073000, C361S090000, C361S092000

Reexamination Certificate

active

07660089

ABSTRACT:
Included are a Zener diode D2having a cathode connected onto a voltage output line, dividing resistors having one terminal connected to the anode of the Zener diode D2and having the other terminal grounded, a transistor Q1having a base connected to the junction point between the dividing resistors via a resistor and having an emitter grounded, a transistor Q2having a base connected to the junction point between the dividing resistors and having an emitter grounded, and a microcomputer having an undervoltage detection terminal10awhich is connected to the collector of the transistor Q1and to which 3.3 V is externally applied and a power supply terminal10bwhich is connected to the collector of the transistor Q2and via which a P-ON-H signal of 3.3 V that starts a power supply circuit126when the power supply is turned on is transmitted.

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