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JPS6447223A - Power source equipment - Google Patents

Power source equipment

Info

Publication number
JPS6447223A
JPS6447223A JP62200818A JP20081887A JPS6447223A JP S6447223 A JPS6447223 A JP S6447223A JP 62200818 A JP62200818 A JP 62200818A JP 20081887 A JP20081887 A JP 20081887A JP S6447223 A JPS6447223 A JP S6447223A
Authority
JP
Japan
Prior art keywords
winding
diode
voltage
high voltage
controlled
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
JP62200818A
Other languages
Japanese (ja)
Other versions
JP2643164B2 (en
Inventor
Joji Nagahira
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP62200818A priority Critical patent/JP2643164B2/en
Priority to EP87308300A priority patent/EP0261894B1/en
Priority to DE3751770T priority patent/DE3751770T2/en
Publication of JPS6447223A publication Critical patent/JPS6447223A/en
Priority to US07/407,714 priority patent/US4980811A/en
Application granted granted Critical
Publication of JP2643164B2 publication Critical patent/JP2643164B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To control power supply to a high voltage load without causing influence onto other loads, by feeding power from high and low voltage sources in different switching modes. CONSTITUTION:A secondary winding 82 is a high voltage winding and connected with a rectifying/smoothing circuit comprising a diode D2 and a capacitor C2. Switching mode of the winding is brought into flyback mode by selecting the polarity of winding of a converter transformer T1 and the conduction polarity of the diode D2. In other word, voltage to be produced across the secondary winding 82 when a primary winding 81 is interrupted is fed through the diode D2 to a load. When control voltage V1 to be applied onto the base of a transistor Q3 is controlled through a sequence control circuit, high voltage output can be controlled.
JP62200818A 1986-09-20 1987-08-13 Power supply Expired - Lifetime JP2643164B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP62200818A JP2643164B2 (en) 1987-08-13 1987-08-13 Power supply
EP87308300A EP0261894B1 (en) 1986-09-20 1987-09-18 Power source apparatus
DE3751770T DE3751770T2 (en) 1986-09-20 1987-09-18 Power source apparatus
US07/407,714 US4980811A (en) 1986-09-20 1989-09-14 Power source apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62200818A JP2643164B2 (en) 1987-08-13 1987-08-13 Power supply

Publications (2)

Publication Number Publication Date
JPS6447223A true JPS6447223A (en) 1989-02-21
JP2643164B2 JP2643164B2 (en) 1997-08-20

Family

ID=16430710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62200818A Expired - Lifetime JP2643164B2 (en) 1986-09-20 1987-08-13 Power supply

Country Status (1)

Country Link
JP (1) JP2643164B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006191775A (en) * 2005-01-07 2006-07-20 Mitsubishi Electric Corp Motor device
US7864014B2 (en) * 2002-10-30 2011-01-04 Stmicroelectronics, Sa Mode-switching transformer

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216768A (en) * 1984-04-11 1985-10-30 Matsushita Electric Ind Co Ltd Switching power source

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60216768A (en) * 1984-04-11 1985-10-30 Matsushita Electric Ind Co Ltd Switching power source

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7864014B2 (en) * 2002-10-30 2011-01-04 Stmicroelectronics, Sa Mode-switching transformer
US8063729B2 (en) 2002-10-30 2011-11-22 Stmicroelectronics, S.A. Mode-switching transformer
JP2006191775A (en) * 2005-01-07 2006-07-20 Mitsubishi Electric Corp Motor device

Also Published As

Publication number Publication date
JP2643164B2 (en) 1997-08-20

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Legal Events

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