US 2014/0177301 A1 · POWER MODULE AND DISTRIBUTED POWER SUPPLY APPARATUS

Abstract

There are provided a power module in which a bias voltage is varied and supplied to a control circuit controlling power conversion when an idle mode is switched to a normal mode, and a distributed power supply apparatus having the same. The power module includes: a power factor correction stage; a DC/DC conversion stage switching power to convert the power into pre-set DC power in a powering mode in which normal power is output; a standby stage converting the power into pre-set standby power in a cold standby mode in which the DC/DC conversion stage outputs power having a level lower than that of normal power; and a variable bias supply unit varying a voltage level of bias power for controlling DC/DC power conversion and supplying the same to the DC/DC conversion stage in the cold standby mode and the powering mode.

Claims16

Dependent claims

A power module comprising:

a power factor correction stage switching input power to correct a power factor thereof;
a DC/DC conversion stage switching power having a corrected power factor from the power factor correction stage to convert the power into pre-set DC power in a powering mode in which normal power is output;
a standby stage converting the power having a corrected power factor from the power factor correction stage into pre-set standby power in a cold standby mode in which the DC/DC conversion stage outputs power having a level lower than that of normal power;
and
a variable bias supply unit varying a voltage level of bias power for controlling DC/DC power conversion and supplying the same to the DC/DC conversion stage in the cold standby mode and the powering mode.

2 more elements

A distributed power supply apparatus comprising:

a plurality of power modules connected in parallel and supplying pre-set power,
wherein each of the plurality of power modules comprises:
a power factor correction stage switching input power to correct a power factor thereof;
a DC/DC conversion stage switching power having a corrected power factor from the power factor correction stage to convert the power into pre-set DC power in a powering mode in which normal power is output;
a standby stage converting the power having a corrected power factor from the power factor correction stage into pre-set standby power in a cold standby mode in which the DC/DC conversion stage outputs power having a level lower than that of normal power;
and
a variable bias supply unit varying a voltage level of bias power for controlling DC/DC power conversion and supplying the same to the DC/DC conversion stage in the cold standby mode and the powering mode.

4 more elements

Dependencies are inferred from the claim text.

Power module and distributed power supply apparatus

Life of this patent

Power module and distributed power supply apparatus

Life of this patent

Abstract

Claims16