|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||322/028; 322/017; 322/014; 322/029; 322/007; 322/009|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 7 인용 특허 : 4|
An A/D conversion device includes a counter for counting a clock signal fed from a clock signal generator, a D/A converter for converting a digital output of the counter into an analog value, a comparator for comparing an analog output of the D/A converter and an analog field current detection value fed from a current detecting resistor and outputting a result of comparison, and an up/down control circuit for switching the counter between count-up and count-down operations according to the result of comparison output from the comparator. The output of th...
What is claimed is: 1. A control apparatus for controlling an automotive generator, said control apparatus comprising: a field current detector for detecting a field current flowing through a field circuit of the automotive generator; and an A/D conversion device for converting an analog field current detection value detected by said field current detector into a digital value and outputting said digital value to an external control unit; wherein said A/D conversion device includes: a counter; a D/A converter for converting a digital output of said coun...