JPS6412813A - Power device for dc stabilization - Google Patents

Power device for dc stabilization

Info

Publication number
JPS6412813A
JPS6412813A JP16911887A JP16911887A JPS6412813A JP S6412813 A JPS6412813 A JP S6412813A JP 16911887 A JP16911887 A JP 16911887A JP 16911887 A JP16911887 A JP 16911887A JP S6412813 A JPS6412813 A JP S6412813A
Authority
JP
Japan
Prior art keywords
circuit
voltage
input
alarm
power device
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
JP16911887A
Other languages
Japanese (ja)
Inventor
Katsumi Oshima
Tatsuya Shidara
Yasuhiro Yuasa
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 JP16911887A priority Critical patent/JPS6412813A/en
Publication of JPS6412813A publication Critical patent/JPS6412813A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a power device from being used at voltage below standard, by outputting an alarm in case AC input voltage gets abnormal for more than a definite time. CONSTITUTION:An input power is rectified with an input circuit 1 and is made into a voltage drop pulse with an inverter circuit 2. It is again rectified with a rectification circuit 3 and outputted as DC voltage through a filter circuit 4. The inverter circuit 2 is controlled by a controlling circuit 6 through a drive circuit 5 so that the DC voltage output may be kept constant. A voltage detection circuit 7 is added to this circuit to detect whether the input voltage is normal and an alarm is outputted from an alarm circuit 8 in case the abnormality continues for a definite time. It can thereby be prevented that a power device is used below standard.
JP16911887A 1987-07-07 1987-07-07 Power device for dc stabilization Pending JPS6412813A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16911887A JPS6412813A (en) 1987-07-07 1987-07-07 Power device for dc stabilization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16911887A JPS6412813A (en) 1987-07-07 1987-07-07 Power device for dc stabilization

Publications (1)

Publication Number Publication Date
JPS6412813A true JPS6412813A (en) 1989-01-17

Family

ID=15880628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16911887A Pending JPS6412813A (en) 1987-07-07 1987-07-07 Power device for dc stabilization

Country Status (1)

Country Link
JP (1) JPS6412813A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950469A (en) * 1997-07-01 1999-09-14 Tsubaki Nakashima Co., Ltd. Method and equipment for surface-hardening treatment of steel balls for a ball bearing
CN1308750C (en) * 2002-07-05 2007-04-04 Nec液晶技术株式会社 LCD device
JP2014199725A (en) * 2013-03-29 2014-10-23 パナソニック株式会社 Overvoltage/undervoltage tripper for circuit breaker
JP2017127167A (en) * 2016-01-15 2017-07-20 株式会社東芝 Power conversion system
US10666130B2 (en) 2017-09-14 2020-05-26 Central Japan Railway Company Electric power conversion system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5950469A (en) * 1997-07-01 1999-09-14 Tsubaki Nakashima Co., Ltd. Method and equipment for surface-hardening treatment of steel balls for a ball bearing
CN1308750C (en) * 2002-07-05 2007-04-04 Nec液晶技术株式会社 LCD device
JP2014199725A (en) * 2013-03-29 2014-10-23 パナソニック株式会社 Overvoltage/undervoltage tripper for circuit breaker
JP2017127167A (en) * 2016-01-15 2017-07-20 株式会社東芝 Power conversion system
US10666130B2 (en) 2017-09-14 2020-05-26 Central Japan Railway Company Electric power conversion system

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