POWER SUPPLY PROTECTIVE CIRCUIT

PURPOSE:To enhance the detection accuracy of overcurrent while lowering the power supply voltage and decreasing the number of components. CONSTITUTION:A feeder line 3 is connected with means 11 for detecting the analog value of current flowing through the feeder line 3 and delivering a detected curr...

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Bibliographic Details
Main Authors GENDA HIDEJI, UCHIDA KOUJI
Format Patent
LanguageEnglish
Published 04.11.1994
Edition5
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
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Summary:PURPOSE:To enhance the detection accuracy of overcurrent while lowering the power supply voltage and decreasing the number of components. CONSTITUTION:A feeder line 3 is connected with means 11 for detecting the analog value of current flowing through the feeder line 3 and delivering a detected current value to the analog port of a CPU 13, and means 17 for delivering an overcurrent signal when the detected current value reaches a predetermined decision level is provided. Furthermore, the feeder line 3 is connected with a circuit 12 for interrupting the feeder line 3 upon delivery of an overcurrent signal from the overcurrent decision means 17, and a circuit 14 for operating the power supply interrupting circuit 12 when an overcurrent higher than the decision level of the overcurrent detecting means 11 flows through the feeder line 3.
Bibliography:Application Number: JP19930094232