JPS5880799U

JPS5880799U - Pulse motor noise prevention circuit

Info

Publication number: JPS5880799U
Application number: JP17386281U
Authority: JP
Inventors: 相部　博
Original assignee: グラフテック株式会社
Priority date: 1981-11-21
Filing date: 1981-11-21
Publication date: 1983-06-01

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 drawings]

第１図は従来の実施例を示す説明図、第２図は本発明（
考案）の実施例を示す説明図である。図中、１〜４，２０〜２４は抵抗、５〜８゜２４〜３１
はコンデンサ、９〜１２．４０〜４３はトランジスタ、
１３〜１６．４４〜４７はパルスモータのコイル、１７
はＦＶコンバータ、１８゜１９はコンパレータ、３２〜
３９はＦＥＴスイッチである。補正　昭５７．１２．２８実用新案登録請求の範囲を次のように補正する。Ｏ実用新案登録請求の範囲記録紙送りパルス信号により記録紙送りパルスモータを
駆動して記録紙送り動作を行なう記録計において、前記
配路紙送りパルス信号を電圧変換するｆ−Ｖ変換器と、
このｆ−Ｖ変換器による出力電圧を１個または複数個の
基準電圧と比較する１個または複数個のコンパレータと
、このコンパレータ出力により０Ｎ−ＯＦＦ動作するス
イッチ素子を設け、記録紙送り速度に関連してパルスモ
ータ駆動電力を制御するパルスモータの騒音防止回路。図面の簡単な説明を次のように補正する。明細書第５頁第１４行の「本発明（考案）」を「本考案
」と補正する。FIG. 1 is an explanatory diagram showing a conventional embodiment, and FIG. 2 is an explanatory diagram showing a conventional embodiment.
FIG. 2 is an explanatory diagram showing an example of the invention. In the figure, 1 to 4, 20 to 24 are resistances, 5 to 8 degrees 24 to 31
is a capacitor, 9-12.40-43 is a transistor,
13-16. 44-47 are pulse motor coils, 17
is FV converter, 18°19 is comparator, 32~
39 is an FET switch. Amendment December 28, 1982 The scope of claims for utility model registration is amended as follows. O Utility Model Registration Claims In a recorder that performs a recording paper feeding operation by driving a recording paper feeding pulse motor using a recording paper feeding pulse signal, an f-V converter that converts the routed paper feeding pulse signal into voltage;
One or more comparators are provided to compare the output voltage of this f-V converter with one or more reference voltages, and a switch element that is turned on and off by the output of this comparator is provided, and is connected to the recording paper feed speed. A pulse motor noise prevention circuit that controls the pulse motor drive power. The brief description of the drawing has been amended as follows. "The present invention (device)" on page 5, line 14 of the specification is amended to read "the present invention."

Claims

[Scope of utility model registration request]

In a recorder that uses a pulse motor to feed recording paper, FV converters and comparators receive the pulse motor's speed control frequency signal and dull the pulse motor's applied voltage waveform below a preset frequency to prevent the noise peculiar to pulse motors. , a noise prevention circuit for a pulse motor, characterized by having an FET switch.