Electricity: electrical systems and devices – Safety and protection of systems and devices – With specific voltage responsive fault sensor
Patent
1998-11-16
2000-05-02
Jackson, Stephen W.
Electricity: electrical systems and devices
Safety and protection of systems and devices
With specific voltage responsive fault sensor
361 56, 361111, 361115, 361118, H02H 300
Patent
active
060579994
ABSTRACT:
Device for preventing generation of X-ray and overvoltage, in which abnormal voltages at voltage output terminals are detected to control a power supply part and a horizontal deflection outputting part directly, for assuring a stability of a power supply, reducing a power consumption, and prevent burning of peripheral circuits due to the abnormal high voltage in advance, the device including a power supply part for dropping an AC power supply voltage to provide as DC power supply voltages, a high voltage generating part for providing a high voltage in response to an external horizontal deflection pulse, an X-ray detecting part for detecting an X-ray signal as the high voltage from the high voltage generating part rises, an over voltage detecting part for detecting an over voltage from each of a plurality of power supply voltages from the power supply part, a first, and a second comparing parts each for providing a preset power supply voltage when a voltage detected by the X-ray detecting part or the over voltage detecting part is over a preset voltage, and a power supply cut-off part for cutting off voltage supply from the power supply part by operating a thryster according to the voltages from the first, and second comparing parts.
REFERENCES:
patent: 5148088 (1992-09-01), Jernigan
Park Jeong Hoon
Yun Yeo Sung
Jackson Stephen W.
LG Electronics Inc.
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