Overload and shock protective device
Abstract
Abstract DISCLOSED HEREIN IS A PROTECTIVE CIRCUIT FOR DISCONNECTING A LOAD FROM A VOLTAGE SOURCE IN RESPONSE TO THE DETECTION OF AN ELECTRICAL OVERLOAD OR AN EXCESS OF LEAKAGE CURRENT. THE PROTECTIVE DEVICE, WHICH IS COUPLED IN SERIES WITH THE VOLTAGE SOURCE AND LOAD, INCLUDES A POWER SUPPLY FOR CONVERTING THE SOURCE VOLATAGE INTO A POTENTIAL FOR USE BY THE PROTECTIVE DEVICE, A PLUSE GENERATOR FOR USE IN DETECTING MALFUNCTIONS IN THE PROTECTIVE CIRCUIT, A CURRENT SENSOR FOR PRODUCING AN OUTPUT SIGNAL UNDER CONDITIONS OF ABNORMAL CURRENT FLOW, AND AMPLIFIER FOR AMILIFYING THE OUTPUT SIGNALS OF THE PULSE GENERATOR AND THE CURRENT SENSOR, A CONTROL STAGE FOR OPENING AND CLOSING A CURRENT SENSOR, A CONTROL POTENTIAL SOURCE TO THE LOAD IN RESPONSE TO AN OUTPUT SIGNAL FROM THE AMPLIFIER, A RESET CIRCUIT FOR ATOMATICALLY RESETTING THE CONTROL STAGE WHEN A PREVIOUSLY DETECTED MALFUNCTION HAS BEEN REMEDIED, A SYSTEM DETECTOR FOR MONITORING THE OPERATION OF THE PREVIOUSLY MENTIONED DEVICES, AND FOR DETECTING FAILURES THEREOF BY MONITORING THE AMPLIFIED PULSES, FOR ACTUATING THE CONTROL STAGE, AND AN INDICATOR RESPONSIVE TO THE CONTROL STAGE, THE CURRENT SENSOR AND THE DETECTOR FOR INDICATING THE PRESENCE OF A MALFUNCTION, AND THE NATURE OF SUCH MALFUNCTION.
Inventors
- 👤 Yung-Chun Wu
- 👤 Yang Ming Li
- 👤 Yang Ming Shan
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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