JP2012114978A5 - - Google Patents
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- JP2012114978A5 JP2012114978A5 JP2010259292A JP2010259292A JP2012114978A5 JP 2012114978 A5 JP2012114978 A5 JP 2012114978A5 JP 2010259292 A JP2010259292 A JP 2010259292A JP 2010259292 A JP2010259292 A JP 2010259292A JP 2012114978 A5 JP2012114978 A5 JP 2012114978A5
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- switching unit
- transformer
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Description
上記目的を達成するための本発明の電源装置は、トランスの一次側に入力される電圧をスイッチングする第一スイッチング部と、前記第一スイッチング部の駆動を制御することにより、前記トランスの二次側の出力電圧を制御する第一制御部と、前記トランスの二次側に接続され、前記トランスの二次側に発生する電圧に応じて駆動する第二スイッチング部と、前記第二スイッチング部に供給される電圧の降下に応答して前記第二スイッチング部をオンし、前記二次側の前記出力電圧を低減する低電圧出力モードにおいて、前記第二スイッチング部がオンしてから所定時間経過後に前記第二スイッチング部をオフするように前記第二スイッチング部の動作を制御する第二制御部とを有することを特徴とする。 In order to achieve the above object, a power supply device of the present invention includes a first switching unit that switches a voltage input to a primary side of a transformer, and a drive of the first switching unit, thereby controlling the secondary of the transformer. A first control unit for controlling the output voltage on the side, a second switching unit connected to the secondary side of the transformer and driven according to a voltage generated on the secondary side of the transformer, and the second switching unit In a low voltage output mode in which the second switching unit is turned on in response to a drop in the supplied voltage and the output voltage on the secondary side is reduced, after a predetermined time has elapsed since the second switching unit was turned on. And a second control unit that controls the operation of the second switching unit to turn off the second switching unit .
また、本発明の画像形成装置は、記録材に画像を形成するための画像形成部と、
前記画像形成部の動作を制御する制御部と、前記制御部に電圧を供給する電源と、を備え、前記電源は、トランスの一次側に入力される電圧をスイッチングする第一スイッチング部と、前記第一スイッチング部の駆動を制御することにより、前記トランスの二次側の出力電圧を制御する第一制御部と、前記トランスの二次側に接続され、前記トランスの二次側に発生する電圧に応じて駆動する第二スイッチング部と、前記第二スイッチング部に供給される電圧の降下に応答して前記第二スイッチング部をオンし、前記二次側の前記出力電圧を低減する低電圧出力モードにおいて、前記第二スイッチング部がオンしてから所定時間経過後に前記第二スイッチング部をオフするように前記第二スイッチング部の動作を制御する第二制御部とを有することを特徴とする。
An image forming apparatus of the present invention includes an image forming unit for forming an image on a recording material,
A controller that controls the operation of the image forming unit; and a power source that supplies a voltage to the controller. The power source is a first switching unit that switches a voltage input to a primary side of the transformer; A voltage generated on the secondary side of the transformer connected to the secondary side of the transformer and a first control unit that controls the output voltage on the secondary side of the transformer by controlling the driving of the first switching unit A second switching unit that is driven in response to a low voltage output that turns on the second switching unit in response to a drop in voltage supplied to the second switching unit and reduces the output voltage on the secondary side in mode, having a a second control unit for controlling the operation of the second switching unit to turn off the second switching unit from the second switching unit is turned on after elapse of a predetermined time It is characterized in.
Claims (2)
前記第一スイッチング部の駆動を制御することにより、前記トランスの二次側の出力電圧を制御する第一制御部と、
前記トランスの二次側に接続され、前記トランスの二次側に発生する電圧に応じて駆動する第二スイッチング部と、
前記第二スイッチング部に供給される電圧の降下に応答して前記第二スイッチング部をオンし、前記二次側の前記出力電圧を低減する低電圧出力モードにおいて、前記第二スイッチング部がオンしてから所定時間経過後に前記第二スイッチング部をオフするように前記第二スイッチング部の動作を制御する第二制御部とを有することを特徴とする電源装置。 A first switching unit that switches a voltage input to the primary side of the transformer;
A first control unit for controlling the output voltage on the secondary side of the transformer by controlling the driving of the first switching unit;
A second switching unit connected to the secondary side of the transformer and driven according to a voltage generated on the secondary side of the transformer;
In the low voltage output mode in which the second switching unit is turned on in response to a drop in the voltage supplied to the second switching unit and the output voltage on the secondary side is reduced, the second switching unit is turned on. And a second control unit that controls the operation of the second switching unit to turn off the second switching unit after a predetermined time has elapsed .
前記画像形成部の動作を制御する制御部と、
前記制御部に電圧を供給する電源と、を備え、
前記電源は、
トランスの一次側に入力される電圧をスイッチングする第一スイッチング部と、
前記第一スイッチング部の駆動を制御することにより、前記トランスの二次側の出力電圧を制御する第一制御部と、
前記トランスの二次側に接続され、前記トランスの二次側に発生する電圧に応じて駆動する第二スイッチング部と、
前記第二スイッチング部に供給される電圧の降下に応答して前記第二スイッチング部をオンし、前記二次側の前記出力電圧を低減する低電圧出力モードにおいて、前記第二スイッチング部がオンしてから所定時間経過後に前記第二スイッチング部をオフするように前記第二スイッチング部の動作を制御する第二制御部とを有することを特徴とする画像形成装置。 An image forming unit for forming an image on a recording material;
A control unit for controlling the operation of the image forming unit;
A power supply for supplying a voltage to the control unit,
The power supply is
A first switching unit that switches a voltage input to the primary side of the transformer;
A first control unit for controlling the output voltage on the secondary side of the transformer by controlling the driving of the first switching unit;
A second switching unit connected to the secondary side of the transformer and driven according to a voltage generated on the secondary side of the transformer;
In the low voltage output mode in which the second switching unit is turned on in response to a drop in the voltage supplied to the second switching unit and the output voltage on the secondary side is reduced, the second switching unit is turned on. And a second control unit that controls the operation of the second switching unit to turn off the second switching unit after a predetermined time has elapsed .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010259292A JP5822457B2 (en) | 2010-11-19 | 2010-11-19 | Power supply device and image forming apparatus |
| CN201010597990.3A CN102104337B (en) | 2009-12-21 | 2010-12-15 | Power supply and image processing system |
| US12/969,283 US8472833B2 (en) | 2009-12-21 | 2010-12-15 | Power supply and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010259292A JP5822457B2 (en) | 2010-11-19 | 2010-11-19 | Power supply device and image forming apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012114978A JP2012114978A (en) | 2012-06-14 |
| JP2012114978A5 true JP2012114978A5 (en) | 2014-01-09 |
| JP5822457B2 JP5822457B2 (en) | 2015-11-24 |
Family
ID=46498576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010259292A Active JP5822457B2 (en) | 2009-12-21 | 2010-11-19 | Power supply device and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5822457B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5826158B2 (en) * | 2012-12-26 | 2015-12-02 | 京セラドキュメントソリューションズ株式会社 | Power supply device and image forming apparatus provided with the same |
| JP6050725B2 (en) * | 2013-06-18 | 2016-12-21 | 株式会社沖データ | High voltage generator, high voltage power supply and image forming apparatus |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07115766A (en) * | 1993-10-15 | 1995-05-02 | Shindengen Electric Mfg Co Ltd | Rectifying circuit for switching power source |
| JP4329113B2 (en) * | 2001-03-30 | 2009-09-09 | Ｔｄｋラムダ株式会社 | Switching power supply |
| DE10339470A1 (en) * | 2003-08-27 | 2005-03-31 | Friwo Mobile Power Gmbh | Control circuit for a switching power supply |
| JP2007185059A (en) * | 2006-01-10 | 2007-07-19 | Tech No Hirabayashi:Kk | Regenerative synchronous rectifier circuit |
| JP5115317B2 (en) * | 2008-05-12 | 2013-01-09 | ミツミ電機株式会社 | Switching power supply |
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2010
- 2010-11-19 JP JP2010259292A patent/JP5822457B2/en active Active
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