POWER SUPPLY DEVICE

A control circuit of a power supply device forms a state in which an auxiliary power supply is connected via a charge circuit to a main power supply when a power switch provided on a power feeding path is turned on. The control circuit calculates an internal resistance of the auxiliary power supply…

POWER SUPPLY REDUNDANCY SYSTEM

A power supply redundancy system includes a main battery that supplies power to a first load unit and a second load unit, a sub-storage that supplies power to at least the second load unit, a switching unit that switches a power supply path from the main battery and the sub-storage to the first…

POWER SUPPLY REDUNDANCY CIRCUIT

A power routing circuit having first and second input nodes VIN VIN for connection to first and second power supplies and output node VOUT for load connection; and includes a first main switching circuit connected between the first input node VIN and output node VOUT and conductively connects the…

POWER SUPPLY SYSTEM

An abnormality determining section disconnects both a positive wire and a negative wire between a load module and a second ground circuit, connects one of a positive wire or a negative wire between a main power source apparatus and the second ground circuit, and determines whether there is an…

COMMUNICATION FACILITIES POWER SUPPLY CONTROL DEVICE, POWER SUPPLY CONTROL METHOD, POWER SUPPLY CONTROL PROGRAM, AND POWER SUPPLY CONTROL SYSTEM

A power source supply control device includes controllable switch units configured to switch provision or non-provision of power source electric power supply to respective loads from a main power source, load monitor units configured to monitor a state in each of one or more of the loads connected…

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