KR970078032A

KR970078032A - Control current generating circuit

Info

Publication number: KR970078032A
Application number: KR1019960018196A
Authority: KR
Inventors: 금동진; 추우승
Original assignee: 김광호; 삼성전자 주식회사
Priority date: 1996-05-28
Filing date: 1996-05-28
Publication date: 1997-12-12

Abstract

제어 전류 발생회로를 공개한다. 그 회로는 기준 전압을 V_ref, 저항값을 R, 공급되는 전류를 Ir, N비트 디지탈 데이타를 D₀∼DN_-1이라 할 때, 하기 식에 의해 디지탈 데이타에 따라 대응 전압 V₀을 갖는 아날로그 신호로 변환 출력하는 디지탈-아날로그 변환부;The control current generation circuit is disclosed. The circuit has an analog voltage having a corresponding voltage V ₀ according to the digital data according to the following equation when the reference voltage is V _ref , the resistance value is R, the current supplied is Ir, and the N bit digital data is D _{0 to} DN ₋₁ . A digital-analog converter for converting and outputting the signal;

상기 디지탈-아날로그 변환부로부터의 아날로그 신호의 전압 V₀에서 기준 전압 V_ref과의 전압차를 전류로 변환 출력하는 전압-전류 변환부를 구비한 것을 특징으로 한다.And a voltage-current converter configured to convert a voltage difference from the voltage V ₀ of the analog signal from the digital-analog converter to the reference voltage V _ref into a current.

Description

Control current generating circuit

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제3도는 본 발명에 따른 제어 전류 발생회로에 대한 구성 블럭도, 제4도는 제3도에 도시된 디지탈-아날로그 변환부의 상세 회로도.FIG. 3 is a block diagram of a control current generation circuit according to the present invention, and FIG. 4 is a detailed circuit diagram of the digital-analog converter shown in FIG.

Claims

When the reference voltage is V _{ref, the} resistance value is R, the supplied current is Ir, and the N-bit digital data is D _{0 to} DN ₋₁ , the analog voltage is converted into an analog signal having a corresponding voltage V ₀ according to the digital data by the following equation. A digital to analog converter for outputting;

And a voltage-current converter for converting and outputting a voltage difference from the voltage V ₀ of the analog signal from the digital-analog converter to a reference voltage V _ref to current.

※ Note: The disclosure is based on the initial application.