Title: High power supply to control an abnormal load
Application Number: 200610131737 Application Date: 2006.09.29
Publication Number: 1941582 Publication Date: 2007.04.04
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02M3/28;H02H5/12;H02H7/122;H02H7/20;G03G15/00;G03G15/08
Applicant(s) Name: Samsung Electronics Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: shixin hong shaoya li
Abstract:
    A high power supply to control an abnormal load includes: a high voltage power processor to amplify a supplied DC power and to output the amplified DC power, a trans/rectifier to transform the DC power to a high voltage power and to rectify the high voltage power, a load detector to compare a load voltage output from a load with a predetermined reference voltage and to output a comparison voltage to detect the abnormal load of the load, and a high voltage controller to supply a chip enable signal to the high voltage power processor to interrupt the high voltage power processor when the comparison voltage output from the load detector is smaller than a predetermined reference value that is set to correspond to a minimum load of the load. Therefore, a user and peripheral components an image forming apparatus are protected from electric shock and being damaged by interrupting an output of the high voltage according to the abnormal load.
Time: 7