Invention Grant
- Patent Title: Power supply apparatus and flat-screen television set
- Patent Title (中): 电源设备和平板电视机
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Application No.: US11899103Application Date: 2007-09-04
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Publication No.: US07936349B2Publication Date: 2011-05-03
- Inventor: Hirotsugu Suzuki
- Applicant: Hirotsugu Suzuki
- Applicant Address: JP Daito-shi, Osaka
- Assignee: Funai Electric Co., Ltd.
- Current Assignee: Funai Electric Co., Ltd.
- Current Assignee Address: JP Daito-shi, Osaka
- Agency: Yokoi & Co., U.S.A., Inc.
- Agent Toshiyuki Yokoi
- Priority: JP2006-239258 20060904
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G09G5/00 ; G05F1/00 ; H02J1/00 ; H05B37/02 ; H05B39/04 ; H05B41/36

Abstract:
A safety circuit 16 for monitoring the waveform of a start signal outputted from a microcomputer 40a is provided in a power supply circuit. If a start signal inputted to the safety circuit 16 is not a pulse wave, a power supply cutoff section 16c cuts off the output of the start signal to a DC/AC circuit 13, thereby cutting off the supply of power by the DC/AC circuit 13 from a primary side to a secondary side. Thereby, it is possible to prevent the supply of power by the power supply circuit without providing an additional microcomputer or IC for monitoring a failure and a temporary malfunction of a control microcomputer and to safely prevent the supply of power at the time of a latch-up caused by noise or a breakage.
Public/Granted literature
- US20080180358A1 Power supply apparatus and flat-screen television set Public/Granted day:2008-07-31
Information query
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