Patent ID: 7391197
Filing Date: 2008-06-24
Classification: H02M

Abstract:
1. An apparatus for regulating output voltages comprising: a voltage conversion and comparison module for converting and comparing of a DC voltage to be output, said voltage conversion and comparison module further comprising a voltage to current conversion module and a comparison module, said voltage to current conversion module converting said voltage to a current, said comparison module outputting a plurality of control signals based on a comparison result; an analog to digital conversion module connected to said voltage conversion and comparison module and used to convert said current by said voltage conversion and comparison module to digital data; an accumulation module connected to said analog to digital conversion module and used to accumulate and process a number of bits of said digital data output by said analog to digital conversion module; a pulse generator connected to said accumulation module and used to generate a plurality of pulse signals based on a result of said accumulation module; a timing generator connected to said pulse generator and said voltage conversion and comparison module and used to generate a plurality of control signals based on said pulse signals generated by said pulse generator and said comparison result of said voltage conversion and comparison module; and a switch module connected to said timing generator and used to control charging of a first external energy storage component and discharging of a second external energy storage component based on said control signals generated by said timing generator so as to regulate said DC voltage.