Efficiency adjustments in power supply system

摘要

A power supply system for maintaining the efficiency of an AC/DC power conversion unit in relation to a load is disclosed. The load varies in response to power usage during operation of the power supply system. An AC power input and a DC power output of the power conversion unit direct DC power to attached components. A master controller disposed in the power supply system detects the load of an attached computer system through a DC meter and executes an algorithm to determine the values of circuit parameters of conversion circuits in the AC/DC power conversion unit. The master controller sends the values to a mode controller through a digital signal interface. The mode controller adjusts the operating mode of the conversion circuits and thus changes the efficiency of the AC/DC power conversion unit.

主权项

1. A power supplying method for changing the efficiency of a power conversion unit, the method comprising:
measuring, by a DC meter, a change in DC power of a DC power output, the change indicative of a new load being drawn from the DC power output; sending, by the DC meter, a power signal indicative of the change in the DC power; receiving, by a second controller, the power signal; outputting, by the second controller, a parameter setting signal to a first controller in response to the power signal; determining, by the first controller, a value of a circuit parameter according to the parameter setting signal; and adjusting, by the first controller, an operating mode of a power conversion circuit according to the value such that the power conversion unit increases in efficiency while the new load is being drawn from the DC power output.