JPS58149095U

JPS58149095U - Control device for commutatorless motor

Info

Publication number: JPS58149095U
Application number: JP1982045055U
Authority: JP
Inventors: 足利　正
Original assignee: 株式会社明電舎
Priority date: 1982-03-30
Filing date: 1982-03-30
Publication date: 1983-10-06

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図はこの考案の一実施例を示す回路図、第２図Ａ、
　Ｂ、　Ｃ，Ｄ、　Ｅは上記実施例の動作を説明するた
めの波形図である。ＩＮＶ−・・インバータ部、Ｇｕ、　Ｇｖ、　Ｇｗ、　
Ｇｘ、　Ｇｙ。Ｇｚ−−−ＧＴＯ，Ｄｕ、　Ｄｖ、　Ｄｗ、　Ｄｘ、　
Ｄｙ、　Ｄｚ−−−ダイオード、ＢＬＭ・・・無整流子
電動機、ＣＴ１．　ＣＴ２゜ＣＴ３・・・変流器、ＰＷ
Ｍ・・・パルス幅変調制御面路、ＧＬＧ・・・駆動信号
発生回路部、ｃｐ・・・比較部、ＬＧＴよ、　ＬＧＴ２
・・・第１、第２論理ゲート回路。Figure 1 is a circuit diagram showing an embodiment of this invention, Figure 2A,
B, C, D, and E are waveform diagrams for explaining the operation of the above embodiment. INV-...Inverter section, Gu, Gv, Gw,
Gx, Gy. Gz---GTO, Du, Dv, Dw, Dx,
Dy, Dz --- diode, BLM... commutatorless motor, CT1. CT2゜CT3...Current transformer, PW
M... Pulse width modulation control plane, GLG... Drive signal generation circuit section, cp... Comparison section, LGT, LGT2
...first and second logic gate circuits.

Claims

[Scope of utility model registration request]

In a non-commutator motor driven by the output of an inverter device controlled by pulse width modulation, a pulse width modulation control circuit that sends a pulse width modulation signal to the output ゛ according to a command signal of motor torque or rotation speed; A position detector is connected to the rotor and detects the rotational position of the rotor, and the detection signal of this position detector and the forward/reverse switching signal of the motor are input, and the output is determined based on the state of both signals. a drive signal generation circuit section that sends out a drive signal;
a first logic gate circuit that sends out a signal only when the output signal from this circuit unit and the output signal of the pulse width modulation control circuit match; and a first logic gate circuit disposed between the output of the inverter device and the electric motor; A current transformer that detects the output current of the inverter device compares the value detected by this current transformer with a preset set value, and when the detected value is larger than the set value, a gate cutoff signal is sent to the output. a comparison section that sends out
A non-commutator comprising a second logic gate circuit to which the output of the comparison section and the output of the first logic gate circuit are supplied, and which stops driving the inverter device when the output of the comparison section is being sent out. Electric motor control device.