JPS59178758U

JPS59178758U - Low input selection circuit

Info

Publication number: JPS59178758U
Application number: JP7349083U
Authority: JP
Inventors: 白石　知男
Original assignee: 日新電機株式会社
Priority date: 1983-05-16
Filing date: 1983-05-16
Publication date: 1984-11-29

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来の低入力選択回路の一例を示す回　　　□
路図、第２図はこの考案の低入力選択回路の一実施例の
回路図、第３図は第２図に示す回路に含まれる半波整流
回路の入出力特性図である。１・・・・・・低入力選択回路、２・・・・・・第１の
入力端子、３・・・・・・第２の入力端子、４・・・・
・・インバータ回路、５・・・・・・半波整流回路、６
・・・・・・加算回路、７・・・・・・出力端子。Figure 1 shows an example of a conventional low input selection circuit.
2 is a circuit diagram of an embodiment of the low input selection circuit of this invention, and FIG. 3 is an input/output characteristic diagram of a half-wave rectifier circuit included in the circuit shown in FIG. 2. 1...Low input selection circuit, 2...First input terminal, 3...Second input terminal, 4...
... Inverter circuit, 5 ... Half-wave rectifier circuit, 6
...Addition circuit, 7...Output terminal.

Claims

[Scope of utility model registration request]

A subtraction circuit that has a first input terminal and a second input terminal and subtracts a signal applied to the second input terminal from a signal applied to the first input terminal, and is configured using a diode circuit as a negative feedback circuit of an inverting amplifier. A half-wave rectifier circuit that inverts the polarity of a positive input signal and outputs it and cuts a negative input signal, and an adder circuit that has a first input terminal and a second input terminal and adds signals applied to both input terminals, A first input terminal is connected to a first input terminal of the subtraction circuit and a first input terminal of the addition circuit, a second input terminal is connected to a second input terminal of the subtraction circuit, and an output terminal of the subtraction circuit is connected. one end is connected to the input end of the half-wave rectifier circuit,
An output terminal of the half rectifying circuit is connected to a second input terminal of the adding circuit, and an output terminal of the adding circuit is connected to an output terminal.