The circuit has a shunt resistor (Rs) connected between a storage capacitor supplying voltage (Vccc) to an electronic board and a power supply output supplying voltage (Vccp) from a battery. The power supply output is connected to a standard input/output o...

A protection circuit that is used with a power supply that produces charging power, and a storage battery for which normal operation is conditional upon a terminal voltage being less than or equal to a maximum voltage, including: a first switch disposed to...