Mains supply fault detection circuit and mains supply fault detection method and protective power supply emergency power supply system
The invention provides a mains supply fault detection circuit. The mains supply fault detection circuit comprises a capacitor, a first resistor, a first comparator, a second comparator, a signal generator, two diodes and a second resistor, wherein one end of the capacitor is connected with a mains s...
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Format: | Patent |
Sprache: | chi ; eng |
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