| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce operation errors when stopping an electric power unit at instantaneous service interruption time, when using an intermittent control electric power unit to serve as an auxiliary electric power unit for an electronic electric equipment. <P>SOLUTION: This unit is constituted, such that stopping of a main electric power unit can be released by detecting instantaneous service interruption to set LOW the output signal of an operation abnormality (voltage decrease) detection circuit. The constitution is such that at instantaneous service interruption time, the power of a microcomputer is turned off, to be turned on after resetting the instantaneous service interruption, so as to make the microcomputer restartable, and to make the main electric power unit restarted. By setting a reference voltage, sensitivity of detecting the instantaneous service interruption can be changed, detection time of the instantaneous service interruption stopping power of the microcomputer can be adjusted easily. <P>COPYRIGHT: (C)2003,JPO</p> |
