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JPS5537686A - Power circuit of flash fixation unit - Google Patents

Power circuit of flash fixation unit

Info

Publication number
JPS5537686A
JPS5537686A JP11143978A JP11143978A JPS5537686A JP S5537686 A JPS5537686 A JP S5537686A JP 11143978 A JP11143978 A JP 11143978A JP 11143978 A JP11143978 A JP 11143978A JP S5537686 A JPS5537686 A JP S5537686A
Authority
JP
Japan
Prior art keywords
pulse
power circuit
20khz
capacitor
fixation unit
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
JP11143978A
Other languages
Japanese (ja)
Other versions
JPS596475B2 (en
Inventor
Kiyoshi Sone
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP53111439A priority Critical patent/JPS596475B2/en
Publication of JPS5537686A publication Critical patent/JPS5537686A/en
Publication of JPS596475B2 publication Critical patent/JPS596475B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Direct Current Feeding And Distribution (AREA)
  • Dc-Dc Converters (AREA)
  • Fixing For Electrophotography (AREA)
  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)

Abstract

PURPOSE:To realize a miniature and lightweight power circuit whose charge time is short and which has high power consumption efficiency, by driving an inverter composed of a high-frequency transformer and switching transistor by a pulse of 20kHz. CONSTITUTION:Once switching transistors 3 and 4 are driven by a pulse of 20kHz from pulse oscillator 21, a high-tension and high-frequency alternating current is induced through the secondary winding of transistor 5 and capacitor 10 is charged through diodes 8 and 9. The charge in capacitor 10 is discharged to flash bulb 11 through reactors 12 and 13 when flash bulb 11 is triggered. Therefore, neither a short current nor a rush current flows through high-frequency transformer 5 and no rise in load occurs, so that there will be no need for a large unit.
JP53111439A 1978-09-11 1978-09-11 Power supply circuit of flash fixing device Expired JPS596475B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53111439A JPS596475B2 (en) 1978-09-11 1978-09-11 Power supply circuit of flash fixing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53111439A JPS596475B2 (en) 1978-09-11 1978-09-11 Power supply circuit of flash fixing device

Publications (2)

Publication Number Publication Date
JPS5537686A true JPS5537686A (en) 1980-03-15
JPS596475B2 JPS596475B2 (en) 1984-02-10

Family

ID=14561220

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53111439A Expired JPS596475B2 (en) 1978-09-11 1978-09-11 Power supply circuit of flash fixing device

Country Status (1)

Country Link
JP (1) JPS596475B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746630A (en) * 1980-09-01 1982-03-17 Ricoh Kk Flash lamp light emitting power source
JPS57166826A (en) * 1981-04-07 1982-10-14 Fujitsu Ltd Constant input charger
JPS6017897A (en) * 1983-07-11 1985-01-29 ウシオ電機株式会社 Power source for flash discharge lamp
JPS6017898A (en) * 1983-07-11 1985-01-29 ウシオ電機株式会社 Power source for flash discharge lamp
US7756438B2 (en) 2004-06-29 2010-07-13 Samsung Electronics Co., Ltd. Device for fusing toner on print medium

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746630A (en) * 1980-09-01 1982-03-17 Ricoh Kk Flash lamp light emitting power source
JPS57166826A (en) * 1981-04-07 1982-10-14 Fujitsu Ltd Constant input charger
JPS6017897A (en) * 1983-07-11 1985-01-29 ウシオ電機株式会社 Power source for flash discharge lamp
JPS6017898A (en) * 1983-07-11 1985-01-29 ウシオ電機株式会社 Power source for flash discharge lamp
US7756438B2 (en) 2004-06-29 2010-07-13 Samsung Electronics Co., Ltd. Device for fusing toner on print medium
US8045878B2 (en) 2004-06-29 2011-10-25 Samsung Electronics Co., Ltd. Device for fusing toner on print medium

Also Published As

Publication number Publication date
JPS596475B2 (en) 1984-02-10

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