JPH0475416A - Motor driving power conversion controller - Google Patents

Motor driving power conversion controller

Info

Publication number
JPH0475416A
JPH0475416A JP18711190A JP18711190A JPH0475416A JP H0475416 A JPH0475416 A JP H0475416A JP 18711190 A JP18711190 A JP 18711190A JP 18711190 A JP18711190 A JP 18711190A JP H0475416 A JPH0475416 A JP H0475416A
Authority
JP
Japan
Prior art keywords
signal
gate
ground fault
detecting circuit
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18711190A
Other languages
Japanese (ja)
Inventor
Koji Endo
Manabu Togawa
Original Assignee
Toshiba Corp
Toshiba Eng Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Toshiba Eng Co Ltd filed Critical Toshiba Corp
Priority to JP18711190A priority Critical patent/JPH0475416A/en
Publication of JPH0475416A publication Critical patent/JPH0475416A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent generation of torque in the reverse direction from a torque command and to enhance safety by detecting difference of the direction between a torque command and a gate signal due to erroneous function of such as an operating circuit through a ground fault detecting circuit and then blocking the gate.
CONSTITUTION: A ground fault detecting circuit 2 monitors the output voltage through resistors 5a, 5b and monitors an Uo signal upon receiving a phase U gate signal for turning a main circuit element (U) 3a ON. The Uo signal is normally equal to the supply voltage VDC and goes to zero upon occurrence of ground fault, and a ground fault detecting circuit 2 functions at that time to block the gate. Similar processing is carried out upon receiving a phase V gate signal for turning a main circuit element (V) 3C ON and when Vo signal goes to zero, an abnormality is judged and the gate is blocked. When a torque command value Tx is higher than a predetermined value, the Vo signal has zero voltage but since the phase V signal is not turned ON, the ground fault detecting circuit 2 does not function.
COPYRIGHT: (C)1992,JPO&Japio
JP18711190A 1990-07-17 1990-07-17 Motor driving power conversion controller Pending JPH0475416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18711190A JPH0475416A (en) 1990-07-17 1990-07-17 Motor driving power conversion controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18711190A JPH0475416A (en) 1990-07-17 1990-07-17 Motor driving power conversion controller

Publications (1)

Publication Number Publication Date
JPH0475416A true JPH0475416A (en) 1992-03-10

Family

ID=16200297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18711190A Pending JPH0475416A (en) 1990-07-17 1990-07-17 Motor driving power conversion controller

Country Status (1)

Country Link
JP (1) JPH0475416A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012147658A (en) * 2010-12-22 2012-08-02 Micro Space Kk Motor drive controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012147658A (en) * 2010-12-22 2012-08-02 Micro Space Kk Motor drive controller

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