JPS6450793A - Inverter - Google Patents

Inverter

Info

Publication number
JPS6450793A
JPS6450793A JP62205909A JP20590987A JPS6450793A JP S6450793 A JPS6450793 A JP S6450793A JP 62205909 A JP62205909 A JP 62205909A JP 20590987 A JP20590987 A JP 20590987A JP S6450793 A JPS6450793 A JP S6450793A
Authority
JP
Japan
Prior art keywords
signal
phase
power
factor
current
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.)
Granted
Application number
JP62205909A
Other languages
Japanese (ja)
Other versions
JPH0815399B2 (en
Inventor
Takahiro Ishigami
Shoji Mochizuki
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP62205909A priority Critical patent/JPH0815399B2/en
Publication of JPS6450793A publication Critical patent/JPS6450793A/en
Publication of JPH0815399B2 publication Critical patent/JPH0815399B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Control Of Ac Motors In General (AREA)

Abstract

PURPOSE:To enable the power-factor phase angle of a load motor to be detected with simple circuit composition, by obtaining the logical product by voltage phase signal and current phase signal, and by detecting the power-factor phase angle. CONSTITUTION:From a micro computer 11, PWM signal is applied to a power converter 10 via a base amplifier circuit 12. Besides, from the PWM signal, the output of the phase voltage waveform signal of an induction motor 2 is generated. In the meantime, from a phase detector 15, through the detection signal of a current sensor 13 via a filter circuit 14, the output of phase current signal is generated. Then, the input of voltage phase signal and current phase signal to a logical circuit 16 is provided, and a phase difference between both ones is obtained by pulse signal. By the micro computer 11, this phase difference signal is read as power-factor phase angle signal, and based on the power-factor phase angle signal, output voltage is controlled.
JP62205909A 1987-08-19 1987-08-19 Inverter device Expired - Lifetime JPH0815399B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205909A JPH0815399B2 (en) 1987-08-19 1987-08-19 Inverter device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205909A JPH0815399B2 (en) 1987-08-19 1987-08-19 Inverter device

Publications (2)

Publication Number Publication Date
JPS6450793A true JPS6450793A (en) 1989-02-27
JPH0815399B2 JPH0815399B2 (en) 1996-02-14

Family

ID=16514760

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205909A Expired - Lifetime JPH0815399B2 (en) 1987-08-19 1987-08-19 Inverter device

Country Status (1)

Country Link
JP (1) JPH0815399B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430377U (en) * 1990-06-21 1992-03-11
JPH0712676U (en) * 1993-08-03 1995-03-03 株式会社京浜精機製作所 solenoid valve
JP2002223590A (en) * 2001-01-24 2002-08-09 Toyota Motor Corp AC motor drive controller

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134128A (en) * 1974-04-17 1975-10-24
JPS56141798A (en) * 1980-04-07 1981-11-05 Toshiba Corp Controlling device of induction motor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50134128A (en) * 1974-04-17 1975-10-24
JPS56141798A (en) * 1980-04-07 1981-11-05 Toshiba Corp Controlling device of induction motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0430377U (en) * 1990-06-21 1992-03-11
JPH0712676U (en) * 1993-08-03 1995-03-03 株式会社京浜精機製作所 solenoid valve
JP2002223590A (en) * 2001-01-24 2002-08-09 Toyota Motor Corp AC motor drive controller

Also Published As

Publication number Publication date
JPH0815399B2 (en) 1996-02-14

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