Title:
INTERMEDIATE VALUE SELECTING CIRCUIT
Document Type and Number:
Japanese Patent JPS5713503
Kind Code:
A
Abstract:
PURPOSE:To take out an intermediate value with high accuracy, by comparing three signals from an output generation part, processing its output by logic which has been decided in advance, and closing an analog switch corresponding to an intermediate value. CONSTITUTION:Signals e1-e3 from an output generation part are provided to analog switches S1-S3, respectively, and the signal e1, the signal e2 and the signal e3 are inputted to a positive input of a comparator C1 and a negative of a comparator C3, a positive input of a comparator C2 and a negative input of a comparator C1, and a positive input of a comparator C3 and a negative input of a comparator C2, respectively. The comparators C1-C3 output logic 1 and logic ''0'', when the positive input is larger and when the negative input is larger, respectively, and they are inputted to a decimal code transducer IC, respectively. When large, medium and small size of the signals e1-e3 are made H, M, L, respectively, the transducer IC outputs a signal from output terminals of No.1-No.6 as shown in the figure, in accordance with combination of output signals of the comparators C1-C3m only a switch of a signal of an M vaue among switches S1-S3 is closed through gates OR1-OR3, and an M value signal is outputted.
Inventors:
WAKAHARA MASATOSHI
Application Number:
JP8732880A
Publication Date:
January 23, 1982
Filing Date:
June 27, 1980
Export Citation:
Assignee:
TOKYO SHIBAURA ELECTRIC CO
International Classes:
G05B9/03; (IPC1-7): G05B9/03