JPS57138872A - Parallel redundancy oscillator - Google Patents

Parallel redundancy oscillator

Info

Publication number
JPS57138872A
JPS57138872A JP56025290A JP2529081A JPS57138872A JP S57138872 A JPS57138872 A JP S57138872A JP 56025290 A JP56025290 A JP 56025290A JP 2529081 A JP2529081 A JP 2529081A JP S57138872 A JPS57138872 A JP S57138872A
Authority
JP
Japan
Prior art keywords
output
power source
inverters
switched
commercial power
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
JP56025290A
Other languages
Japanese (ja)
Other versions
JPS6341314B2 (en
Inventor
Toshio Tanaka
Motoyuki Matsunaga
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56025290A priority Critical patent/JPS57138872A/en
Publication of JPS57138872A publication Critical patent/JPS57138872A/en
Publication of JPS6341314B2 publication Critical patent/JPS6341314B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/493—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Inverter Devices (AREA)

Abstract

PURPOSE:To enhance the reliability of an oscillator by normally operating in parallel a plurality of inverters and synchronously operating temporarily with a commercial power source when the outputs of the inverters are switched to the commerical power source. CONSTITUTION:Switches 41, 42 are closed at a common bus (a) side in a normally operating state, inverters 1, 2 are operated in parallel with a reference signal from the common bus (a). At this time the pulse of the common bus (a) is always synchronized with the output (D) of a PLLB. When the output of the inverter is switched to a commercial power source side in this state, the switches 41, 42 are first switched to the output (b) side of the PLLB. At this time the inverters 1, 2 are operated synchronously with the output (b) of the PLLB. Accordingly, the output of the inverter and commercial power source is instantaneously switched to supply the power consecutively from the commercial power source to a load.
JP56025290A 1981-02-23 1981-02-23 Parallel redundancy oscillator Granted JPS57138872A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56025290A JPS57138872A (en) 1981-02-23 1981-02-23 Parallel redundancy oscillator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56025290A JPS57138872A (en) 1981-02-23 1981-02-23 Parallel redundancy oscillator

Publications (2)

Publication Number Publication Date
JPS57138872A true JPS57138872A (en) 1982-08-27
JPS6341314B2 JPS6341314B2 (en) 1988-08-16

Family

ID=12161880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56025290A Granted JPS57138872A (en) 1981-02-23 1981-02-23 Parallel redundancy oscillator

Country Status (1)

Country Link
JP (1) JPS57138872A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8965247B2 (en) 2012-05-31 2015-02-24 Oki Data Corporation Image formation apparatus and fixation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8965247B2 (en) 2012-05-31 2015-02-24 Oki Data Corporation Image formation apparatus and fixation device

Also Published As

Publication number Publication date
JPS6341314B2 (en) 1988-08-16

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