JPS62203467U

JPS62203467U -

Info

Publication number: JPS62203467U
Application number: JP9112686U
Authority: JP
Priority date: 1986-06-13
Filing date: 1986-06-13
Publication date: 1987-12-25

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例のブロツク図、第２
図は第１図に示す実施例の動作を説明するための
タイム図、第３図は従来のパルス幅検出回路の一
例のブロツク図である。１……正論理入力端、２……負論理入力端、３
……パルス幅設定回路、４……パルス幅設定端、
５……モノステーブル・マルチバイブレータ回路
、６……判定回路、７……判定出力端、８……反
転出力端、９……入力パルス入力端、１０……基
準パルス入力端、１５……基準パルス幅、１６…
…被検出パルス幅、３１……基準クロツク発生回
路、３２……カウンタ回路、３３……判定回路、
３４……判定基準値、ＩＮ……入力パルス、ＯＵ
Ｔ，ＯＵＴ′……判定信号、ＳＴ……基準パルス
。 Fig. 1 is a block diagram of an embodiment of the present invention;
1 is a time diagram for explaining the operation of the embodiment shown in FIG. 1, and FIG. 3 is a block diagram of an example of a conventional pulse width detection circuit. 1...Positive logic input terminal, 2...Negative logic input terminal, 3
...Pulse width setting circuit, 4...Pulse width setting end,
5... Monostable multivibrator circuit, 6... Judgment circuit, 7... Judgment output terminal, 8... Inverted output terminal, 9... Input pulse input terminal, 10... Reference pulse input terminal, 15... Reference Pulse width, 16...
...Detected pulse width, 31...Reference clock generation circuit, 32...Counter circuit, 33...Judgment circuit,
34... Judgment reference value, IN... Input pulse, OU
T, OUT'...Judgment signal, ST...Reference pulse.

Claims

[Scope of utility model registration request]

It has a positive logic input terminal, a negative logic input terminal, a pulse width setting terminal, an output terminal, and an inverted output terminal, and is generated at the leading edge of an input pulse applied to either the positive logic input terminal or the negative logic input terminal. a monostable multivibrator circuit that outputs a reference pulse having a reference width given to the pulse width setting terminal; the monostable multivibrator circuit has an input pulse input terminal, a reference pulse input terminal, and a determination output terminal; A pulse width detection circuit comprising: a determination circuit that compares the pulse width with an input pulse and outputs a determination signal.