Protection circuit and protection method
OwnerOsamu Kawagoe, Akira Ikeuchi +1inventors
InventorsOsamu Kawagoe, Akira Ikeuchi, Hidenori Tanaka
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Abstract
A protection circuit is disclosed that issues an instruction to blow a fuse connected to a power source in response to detection of an abnormality of a voltage of the power source. The protection circuit includes a time control unit that detects the voltage of the power source and controls the length of time from the detection of the abnormality of the voltage of the power source to the issue of the instruction to blow the fuse in accordance with the detected voltage.
Claims5
A protection circuit that issues an instruction to blow a fuse connected to a power source in response to a detection of an abnormality of a voltage of the power source, comprising:
- a time control unit that detects the voltage of the power source, and controls the length of time from the detection of the abnormality of the voltage of the power source to the issue of the instruction to blow the fuse in accordance with the detected voltage.
A protection method that protects a power source by blowing a fuse connected to the power source in response to a detection of an abnormality of a voltage of the power source, comprising the steps of:
- detecting the voltage of the power source;
- and
- controlling the length of time from the detection of the abnormality of the voltage of the power source to the blowing of the fuse in accordance with the detected voltage so as to be constant regardless of the detected voltage.
Dependencies are inferred from the claim text.