Patent ID: 7663520
Filing Date: 2010-02-16
Classification: H02P

Abstract:
1. An analog-to-digital (A/D) conversion apparatus that has a plurality of analog input channels, and sequentially converts analog signals inputted into the plurality of analog input channels to digital signals in channel number order of a plurality of channel numbers respectively assigned to the plurality of analog input channels, said A/D conversion apparatus comprising: a selection unit configured to select one of the plurality of analog input channels; an A/D converter that converts an analog signal inputted into the analog input channel selected by said selection unit, to a digital signal; a start register that holds a start channel number which is a channel number of a start analog input channel of the sequential conversion; an end register that holds an end channel number which is a channel number of an end analog input channel of the sequential conversion; a prohibition information holding unit configured to hold prohibition information indicating an analog input channel that is to be excluded from the sequential conversion; and a control unit configured to cause said selection unit to select, in the channel number order, analog input channels corresponding to channel numbers from the start channel number to the end channel number except the analog input channel indicated by the prohibition information held in said prohibition information holding unit.