Patent ID: 8599589
Filing Date: 2013-12-03
Classification: H02M,Y02B

Abstract:
1. A power supply system for an apparatus, the power supply system comprising: an AC (alternating current) to DC (direct current) converter having an input to receive an AC voltage from an AC source and having a DC voltage output and having a control input, the control input being configured to control a voltage of the DC voltage output; a first DC to DC converter having an input coupled to the DC voltage output and having an output configured to provide a DC supply voltage to a first component of the apparatus; a controller having a first input coupled to the DC voltage output and having a first output coupled to the control input of the AC to DC converter, the controller being configured to monitor an operating state of the apparatus and to adjust, in response to the monitoring of the operating state of the apparatus, a parameter of a signal of the first output of the controller, the parameter adjustment causing the AC to DC converter to reduce the voltage of the DC voltage output while maintaining the DC supply voltage output from the DC to DC converter.