POWER PROVIDING APPARATUS WITH THE ABILITY OF SETTLING A MOMENT POWER FAILURE PROBLEM

摘要

An auto recovery power supply device for momentary power failure is provided to supply system operating voltage according to power sequence which a system requests and guarantee stable operation of system after momentary power failure. DC / DC transformers(200,300) converts input power source into a plurality of system operating voltages in order to output the system operating voltages to system electronics demanding power sequence respectively. A discharge unit(600) discharges the output power of transform units in the momentary power failure in order to make determined power input to the system electronics demanding the power sequence. A controller(500) controls transform units and discharge unit for a fixed time with disabling and inabling in case of input power source level drop due to the momentary power failure.