Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hirotsugu Suzuki0
Date of Patent
May 3, 2011
0Patent Application Number
118991030
Date Filed
September 4, 2007
0Patent Primary Examiner
Patent 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.
Timeline
No Timeline data yet.
Further Resources
No Further Resources data yet.
