JPH0355050U

JPH0355050U -

Info

Publication number: JPH0355050U
Application number: JP11541889U
Authority: JP
Priority date: 1989-09-29
Filing date: 1989-09-29
Publication date: 1991-05-28

Description

[Brief explanation of drawings]

第１図は本考案電気掃除機用モータ制御回路の
実施例の電気回路図、第２図は同要部の電気回路
図、第３図は同波形説明図でイは全波整流波形図
、ロはゼロクロス信号波形図、ハはモータ出力波
形図である。また第４図は本考案の前提となる従
来技術の要部の電気回路図、第５図は同波形説明
図でイは全波整流波形図、ロはゼロクロス信号波
形図、ハはモータ出力波形図である。１……ゼロクロス入力波形出力部、４……マイ
コン（位相制御手段）、６……回転数変更回路、
ＳＷ３……モータ出力切替スイツチ（設定手段）
、０１……第１表示出力端子、０２……第２表示
出力端子。 Fig. 1 is an electric circuit diagram of an embodiment of the vacuum cleaner motor control circuit of the present invention, Fig. 2 is an electric circuit diagram of the main parts of the same, Fig. 3 is an explanatory diagram of the same waveforms, and A is a full-wave rectification waveform diagram. B is a zero-crossing signal waveform diagram, and C is a motor output waveform diagram. In addition, Fig. 4 is an electric circuit diagram of the main part of the conventional technology that is the premise of the present invention, and Fig. 5 is an explanatory diagram of the same waveform, where A is a full-wave rectification waveform diagram, B is a zero-cross signal waveform diagram, and C is a motor output waveform. It is a diagram. 1...Zero cross input waveform output section, 4...Microcomputer (phase control means), 6...Rotation speed changing circuit,
SW3...Motor output selector switch (setting means)
, 01...first display output terminal, 02...second display output terminal.

Claims

[Scope of utility model registration request]

a zero-cross input waveform output unit configured to input a full-wave rectified waveform of a commercial power source to a capacitor charging circuit to obtain a zero-cross signal; a setting unit configured to set an output of the motor; a phase control means for controlling the phase of the motor to switch the rotational speed according to the setting of the setting means, and outputting the switching state individually to a plurality of display output units and displaying it on a display; and the display output. and a rotation speed changing circuit that changes the charging time of the capacitor to change the rotation speed of the motor when it is detected that there is a display output in a specific display output section of the section. Vacuum cleaner motor control circuit.