| 摘要 |
<P>PROBLEM TO BE SOLVED: To stop a capacitor from functioning before the capacitor is broken, a pressure valve operates, etc. Ž<P>SOLUTION: Circuits 1, 10 with a capacitor each include a fuse 3 connected in series with a power source 2 for supplying electric power, a capacitor 7 having anode-side and cathode-side terminals 14 (14a, 14b), and a switch 5 connected to the capacitor 7 in parallel and forming a short circuit for stopping the capacitor 7 from functioning on detecting a replacement period of the capacitor 7. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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