JPS6443067A - Overcurrent detection method for inverter - Google Patents

Overcurrent detection method for inverter

Info

Publication number
JPS6443067A
JPS6443067A JP62197800A JP19780087A JPS6443067A JP S6443067 A JPS6443067 A JP S6443067A JP 62197800 A JP62197800 A JP 62197800A JP 19780087 A JP19780087 A JP 19780087A JP S6443067 A JPS6443067 A JP S6443067A
Authority
JP
Japan
Prior art keywords
microcomputer
circuit
inverter
overcurrent detection
overcurrent
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
JP62197800A
Other languages
Japanese (ja)
Inventor
Izumi Iwaki
Tadashi Tamaoki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Churyo Engineering Co Ltd
Mitsubishi Heavy Industries Ltd
Original Assignee
Churyo Engineering Co Ltd
Mitsubishi Heavy Industries 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 Churyo Engineering Co Ltd, Mitsubishi Heavy Industries Ltd filed Critical Churyo Engineering Co Ltd
Priority to JP62197800A priority Critical patent/JPS6443067A/en
Publication of JPS6443067A publication Critical patent/JPS6443067A/en
Pending legal-status Critical Current

Links

Landscapes

  • Protection Of Static Devices (AREA)
  • Power Conversion In General (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To protect properly by inputting the output signal of an overcurrent detection circuit to a microcomputer all the time and having the number of the overcurrent signals counted every certain time. CONSTITUTION:An inverter is constituted of an inverter main circuit 2, a base driving circuit 7 etc., and controlled by a microcomputer 10. The microcomputer 10 is constituted of CPU14, ROM15, RAM16, an input latch circuit 12 and an input and output circuit 13. And, the output of an overcurrent detection circuit 4 makes a current limiting operation operate directly as a breaking signal of a power transistor without latching by the latch circuit 12, and at the same time, the output signal of the overcurrent detection circuit 4 is inputted to the microcomputer 10, and the base breaking is carried out by the microcomputer 10 having a program capable of detecting a certain time continuity of the operation. Accordingly, for instantaneous overcurrent, the inverter can be immediately operated continuously by current reduction after breaking the current at a set-point.
JP62197800A 1987-08-07 1987-08-07 Overcurrent detection method for inverter Pending JPS6443067A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62197800A JPS6443067A (en) 1987-08-07 1987-08-07 Overcurrent detection method for inverter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62197800A JPS6443067A (en) 1987-08-07 1987-08-07 Overcurrent detection method for inverter

Publications (1)

Publication Number Publication Date
JPS6443067A true JPS6443067A (en) 1989-02-15

Family

ID=16380558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62197800A Pending JPS6443067A (en) 1987-08-07 1987-08-07 Overcurrent detection method for inverter

Country Status (1)

Country Link
JP (1) JPS6443067A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168926A (en) * 2005-12-19 2007-07-05 Ricoh Co Ltd Sheet processing apparatus and image forming apparatus
JP2010063244A (en) * 2008-09-02 2010-03-18 Sumitomo Heavy Ind Ltd Device and method of controlling driving of step-up/step-down converter
JP2016059143A (en) * 2014-09-08 2016-04-21 三菱電機株式会社 Overcurrent protector and overcurrent protection method
WO2016111260A1 (en) * 2015-01-05 2016-07-14 三菱電機株式会社 Power conversion device
US9725008B2 (en) 2008-11-10 2017-08-08 Sumitomo Heavy Industries, Ltd. Hybrid type construction machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614469A (en) * 1984-06-14 1986-01-10 Sansha Electric Mfg Co Ltd Overcurrent protecting circuit of inverter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS614469A (en) * 1984-06-14 1986-01-10 Sansha Electric Mfg Co Ltd Overcurrent protecting circuit of inverter

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007168926A (en) * 2005-12-19 2007-07-05 Ricoh Co Ltd Sheet processing apparatus and image forming apparatus
JP2010063244A (en) * 2008-09-02 2010-03-18 Sumitomo Heavy Ind Ltd Device and method of controlling driving of step-up/step-down converter
US9725008B2 (en) 2008-11-10 2017-08-08 Sumitomo Heavy Industries, Ltd. Hybrid type construction machine
US10766480B2 (en) 2008-11-10 2020-09-08 Sumitomo Heavy Industries, Ltd. Hybrid construction machine
JP2016059143A (en) * 2014-09-08 2016-04-21 三菱電機株式会社 Overcurrent protector and overcurrent protection method
WO2016111260A1 (en) * 2015-01-05 2016-07-14 三菱電機株式会社 Power conversion device
JPWO2016111260A1 (en) * 2015-01-05 2017-06-29 三菱電機株式会社 Power converter
CN107078664A (en) * 2015-01-05 2017-08-18 三菱电机株式会社 power conversion device
US9985552B2 (en) 2015-01-05 2018-05-29 Mitsubishi Electric Corporation Power conversion apparatus configured to include plurality of power converter circuits of inverter circuits
CN107078664B (en) * 2015-01-05 2019-05-21 三菱电机株式会社 power conversion device

Similar Documents

Publication Publication Date Title
JPS6423778A (en) Surge motor driving circuit
DE3586425D1 (en) ELECTRICAL PERFORMANCE CONTROL UNIT.
JPS5597198A (en) Load level detecting method and its circuit for stepping motor
JPS6420720A (en) Output buffer circuit
JPS54153218A (en) Driving system of step motor
JPS5492049A (en) Electronic timer
JPS5490514A (en) Starting-assist circuit for commutatorless motor
JPS6488119A (en) Annunciator circuit in data processor for instrumentation
JPS56140686A (en) Pockels' cell driving circuit
JPS6412824A (en) Output variation system for inverse voltage detection of dispersed power source
JPS54153977A (en) Sequence controller
JPS56163930A (en) Alarming device of automobile
JPS57194378A (en) Test circuit of electronic clock
JPS566684A (en) Antiphase detecting device
JPS57126274A (en) Protecting system for converter
JPS54185A (en) Tele monitoring controller
JPS5438513A (en) Controller for ac thyristor motor
JPS5494635A (en) Control device of inverter
JPS5477883A (en) Controller of equipment for home
JPS5633235A (en) Electrospark machining device
JPS54146672A (en) Method of detecting wire breaking in wire cutting power supply processing device
JPS6455771A (en) Operating device
JPS6423781A (en) Positioning device
JPS6415821A (en) 3-state control system
JPS5524658A (en) Inspecting circuit for electronic watch