US 2010/0149845 A1 · DIGITALLY CONTROLLED SWITCHED-MODE POWER SUPPLY

Abstract

The present invention relates to a digitally controlled switched-mode power supply, which achieves the effectiveness to save on power and enable more accurate voltage through control of a digital circuit, The power supply is provided with a control circuit, and the control circuit primarily includes a digital unit and a switching controller, wherein functionality of the digital unit enables transmitting an input voltage signal to the switching controller, and when the switching controller transmits voltage to the digital unit, then the digital unit is able to feed a signal back to control the switching controller. Accordingly, the digital unit is able to accurately sense the input load voltage at all times, and thereby achieve advancement to enable saving on power and more accurate voltage.

Claims8

Dependent claims

A digitally controlled switched-mode power supply, wherein a power supply is provided with a control circuit, and the control circuit comprises:

a digital unit, the digital unit is provided with the functionality to deliver input voltage signals, while at the same time is able to accurately detect voltage values;
and
a switching controller, the switching controller receives the voltage signals coming from the digital unit and produces a clock signal, after which the clock signal is output, while at the same time the switching controller delivers voltage to the digital unit, whereupon the digital unit feeds back to control the switching controller.

Dependencies are inferred from the claim text.

Digitally controlled switched-mode power supply

Life of this patent

Digitally controlled switched-mode power supply

Life of this patent

Abstract

Claims8