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1. 发明专利

JP2013099144A Electric power supply and image formation apparatus 有权
标题翻译：电力供应和图像形成装置
公开(公告)号：JP2013099144A
公开(公告)日：2013-05-20
申请号：JP2011240585
申请日：2011-11-01
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU
IPC分类号： H02M3/28 , G03G21/00
CPC分类号： H03K17/302 , H02M1/08 , H02M3/33592 , H03K2017/307 , Y02B70/1475
摘要： PROBLEM TO BE SOLVED: To provide a switching power supply which can properly make synchronous rectification operation using a low on-resistance switch element.SOLUTION: An electric power supply comprising a synchronous rectification switch to rectify the pulse voltage has features to convert an electric current on a side where the pulse voltage is input to the synchronous rectification switch into a first voltage; to convert an electric current on a side where the voltage is output from the rectification switch into a second voltage; to switch on and off the synchronous rectification switch on the basis of the comparison result between the converted first voltage and second voltage; and to keep the off-state after the synchronous rectification switch is switched off.
摘要翻译：要解决的问题：提供可以使用低导通电阻开关元件适当地进行同步整流操作的开关电源。解决方案：包括用于整流脉冲电压的同步整流开关的电源具有将输入脉冲电压的一侧的电流转换成同步整流开关成为第一电压的特征; 将电压从整流开关输出的一侧的电流转换为第二电压; 基于转换的第一电压和第二电压之间的比较结果来接通和断开同步整流开关; 并在同步整流开关关闭后保持关断状态。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2013090509A Power supply device 有权
标题翻译：电源设备
公开(公告)号：JP2013090509A
公开(公告)日：2013-05-13
申请号：JP2011231004
申请日：2011-10-20
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU , MANO HIROSHI
IPC分类号： H02M3/28 , G03G21/00 , H02M7/21
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： PROBLEM TO BE SOLVED: To provide a switching power supply device of synchronous rectification system, capable of achieving correct operation using a switching element with low on-resistance without degrading efficiency.SOLUTION: The switching power supply device includes: rectification means that rectifies an input pulse voltage; voltage-current conversion means provided on the side where a pulse voltage is input into the rectification means; current-voltage conversion means that converts an output current into voltage of the voltage-current conversion means; and comparison means that compares a difference between a voltage of the current-voltage conversion means and a reference voltage, and controls the operation of the rectification means by an output from the comparison means.
摘要翻译：要解决的问题：提供一种同步整流系统的开关电源装置，其能够使用具有低导通电阻的开关元件来实现正确的操作而不降低效率。解决方案：开关电源装置包括：对输入脉冲电压进行整流的整流装置; 电压 - 电流转换装置，设置在整流装置中输入脉冲电压的一侧; 电流 - 电压转换装置，其将输出电流转换成电压 - 电流转换装置的电压; 以及比较装置，其比较电流 - 电压转换装置的电压和参考电压之间的差异，并且通过比较装置的输出来控制整流装置的操作。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2010220292A Power supply apparatus 有权
标题翻译：电源设备
公开(公告)号：JP2010220292A
公开(公告)日：2010-09-30
申请号：JP2009061110
申请日：2009-03-13
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU
IPC分类号： H02M3/28
CPC分类号： H02M3/3385 , H02M1/36 , H03K17/0822 , H03K17/6877
摘要： PROBLEM TO BE SOLVED: To shorten the period of time consumed to turn off a switching element to suppress the occurrence of switching loss thereof, in a power supply apparatus.
SOLUTION: The power supply apparatus includes: a transformer; a series circuit, which is composed of a primary winding of the transformer, connected to a DC power source, a switching element, and a current detecting element; an output circuit, which is connected to a secondary winding of the transformer; an auxiliary winding of the transformer; an ON time limiting circuit, which is connected to the auxiliary winding and limits the ON time of the switching element by a time constant circuit; and a current limiting circuit, which switches off the switching element when a current detected by the current detecting element exceeds a predetermined value. The current limiting circuit has self-holding circuits 118 and 119, which self-hold the state of the current limiting operation when the detected current exceeds a predetermined value. The problem is solved by the power supply apparatus.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：在电源装置中缩短关断开关元件以消除其开关损耗的发生所消耗的时间。电源装置包括：变压器; 串联电路，其由变压器的初级绕组组成，连接到直流电源，开关元件和电流检测元件; 输出电路，连接到变压器的次级绕组; 变压器的辅助绕组; 接通时间限制电路，连接到辅助绕组，并通过时间常数电路限制开关元件的导通时间; 以及限流电路，其在由所述电流检测元件检测出的电流超过规定值时切断所述开关元件。电流限制电路具有自保持电路118和119，当检测到的电流超过预定值时，该保持电路自行保持限流操作的状态。该问题由电源装置解决。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2007330081A Switching regulator 审中-公开
标题翻译：开关稳压器
公开(公告)号：JP2007330081A
公开(公告)日：2007-12-20
申请号：JP2006161344
申请日：2006-06-09
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU
IPC分类号： H02M3/338
摘要： PROBLEM TO BE SOLVED: To provide a self-exciting converter of a switching regulator for high output at a low cost.
SOLUTION: An ET product monitor 230 acquires a voltage-time product of time and voltage value applied as a rectified DC voltage to a transformer 104. A switching control unit 250 compares the voltage-time product with a predetermined threshold value. It controls an FET106 depending on the comparison result, to invert switching state of the FET106 into a non-conductive state when a primary coil Np is conductive while into a conductive state when it is non-conductive.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：以低成本提供开关稳压器的自激励转换器以实现高输出。解决方案：ET产品监视器230获取作为经整流的DC电压施加到变压器104的时间和电压值的电压时间积。开关控制单元250将电压 - 时间乘积与预定阈值进行比较。根据比较结果，它控制FET106，当初级线圈Np在不导通时处于导通状态时导通，将FET106的开关状态反转为非导通状态。版权所有（C）2008，JPO＆INPIT

5. 发明专利

JP2007047559A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2007047559A
公开(公告)日：2007-02-22
申请号：JP2005233116
申请日：2005-08-11
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU
IPC分类号： G03G15/20 , G03G21/00 , H05B3/00
摘要： PROBLEM TO BE SOLVED: To provide a low cost, high current use-efficient switching power source device for an electrophotographic image forming apparatus, and to provide the image forming apparatus designed so as to restrain higher harmonic noise and noise terminal voltage, simplify a filter structure, and reduce its cost. SOLUTION: The image forming apparatus includes: the switching power source device, a zero-cross detecting means, a switching control means, a fixing device, a fixing power source, a fixing temperature control means, a temperature detecting means, a current detecting means, and a means for creating a current waveform template formed from the waveform of a commercial AC power source voltage and used for control. In addition, control can be exerted in synchronization with a zero-cross signal by inputting a zero-cross detection signal to the control circuit (error amplifier) of the switching power source as a synchronous signal. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种用于电子照相图像形成装置的低成本，高电流效率的开关电源装置，并且提供被设计成抑制高次谐波噪声和噪声端电压的图像形成装置，简化过滤器结构，降低成本。解决方案：图像形成装置包括：开关电源装置，零交叉检测装置，开关控制装置，定影装置，固定电源，定影温度控制装置，温度检测装置，电流检测装置，以及用于产生由商用AC电源电压的波形形成并用于控制的电流波形模板的装置。此外，通过将开关电源的控制电路（误差放大器）作为同步信号输入过零检测信号，可以与零交叉信号同步地进行控制。版权所有（C）2007，JPO＆INPIT

6. 发明专利

JP2006201458A Image forming apparatus 审中-公开
标题翻译：图像形成装置
公开(公告)号：JP2006201458A
公开(公告)日：2006-08-03
申请号：JP2005012767
申请日：2005-01-20
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU
IPC分类号： G03G15/20 , H02M7/12 , H05B6/04
摘要： PROBLEM TO BE SOLVED: To provide a fixing device utilizing induction heating, and using an inverter whose power control width is wide, and restraining higher harmonics so as to allow the simplification of filter structure.
SOLUTION: In an image forming apparatus, the fixing device is constituted of an inverter device, a zero cross detection means, a gate signal control means, a fixing coil, a fixing sleeve, and a thermistor. Then, many-stage control is made to power from 400W to 1,200W in inverter output 1,200W, and off/on duty control is made to power ≤600W therein. The device has a means for fluctuating even a current itself flowing in a low voltage power source in synchronization with the zero cross signal of an input commercial alternating current so as to fluctuate only in the unit of one cycle by inputting a zero cross detection signal as a synchronizing signal and applying the feedback for every zero cross pulse for the switching control feedback of a DC stabilizing power source for supplying the DC power source of the device.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种利用感应加热的定影装置，并且使用功率控制宽度宽的逆变器，并且抑制高次谐波以便于简化滤波器结构。解决方案：在图像形成装置中，定影装置由逆变器装置，零交叉检测装置，门信号控制装置，固定线圈，定影套筒和热敏电阻构成。然后在变频器输出1,200W进行多级控制，功率从400W到1200W，关闭/上电控制功率在600W以下。该装置具有与输入的商用交流电的零交叉信号同步地在低压电源中流动的电流本身波动的装置，以便仅以一个周期为单位波动，通过输入零交叉检测信号作为同步信号，并为每个零交叉脉冲施加用于直流稳压电源的开关控制反馈的反馈，用于提供器件的直流电源。版权所有（C）2006，JPO＆NCIPI

7. 发明专利

JP2005347132A Heating device, temperature control method in heating device, and image formation device 有权
标题翻译：加热装置，加热装置中的温度控制方法和图像形成装置
公开(公告)号：JP2005347132A
公开(公告)日：2005-12-15
申请号：JP2004166365
申请日：2004-06-03
申请人： Canon Inc , キヤノン株式会社
发明人： SUZUKI MASAHIRO , HAYASHIZAKI MINORU
IPC分类号： G03G15/20 , H05B6/06 , H05B6/14
摘要： PROBLEM TO BE SOLVED: To prevent abnormal noise and to improve the quality of a fixed image by executing temperature control for preventing a fixation film constituting a heating device from resonating.
SOLUTION: In controlling the frequency of an alternating magnetic field for heating the fixation film by the on-time of a switching element, an alternating frequency of an alternating current is varied by avoiding a frequency band from f1 to f2 including a resonance frequency band of the fixation film. Thereby, power corresponding to a frequency between f1 and f2 is outputted in a pseudo manner by carrying out duty control by alternately using two kinds of alternating frequencies such as f1 and f2.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：通过执行用于防止构成加热装置的定影膜谐振的温度控制来防止异常噪声和提高固定图像的质量。解决方案：在通过开关元件的导通时间来控制用于加热定影膜的交变磁场的频率时，通过避免包括谐振的从f1到f2的频带来改变交流电的交变频率固定膜的频带。因此，通过交替使用两种交替频率如f1和f2进行占空比控制，以伪方式输出与f1和f2之间的频率相对应的功率。版权所有（C）2006，JPO＆NCIPI

8. 发明专利

JP2003347030A Heating device, image heating device, and image forming device 审中-公开
标题翻译：加热装置，图像加热装置和图像形成装置
公开(公告)号：JP2003347030A
公开(公告)日：2003-12-05
申请号：JP2002152212
申请日：2002-05-27
申请人： Canon Inc , キヤノン株式会社
发明人： HAYASHIZAKI MINORU , MANO HIROSHI
IPC分类号： G03G15/20 , H05B6/14 , H05B6/40
摘要： PROBLEM TO BE SOLVED: To provide device constitution preventing or reducing the thermal sag of the end part of an electromagnetic induction heat generation member or temperature rising in a non paper-guiding part by making heat generation distribution control unnecessary by warming of an exciting coil or with the configuration of a ferrite core of a magnetic field generation means in a heating device of an electromagnetic induction heating type, an image heating device, and an image forming device having the image heating device.
SOLUTION: (1) Heat generation distribution is varied by varying resistivity of the surface by conducting work 1a to the surface of the electromagnetic induction heat generation member 1; (2) a desired heat generation distribution is obtained by controlling a region where eddy current flows by applying a conductive material to the surface of the electromagnetic induction heat generation member 1; (3) a desirable heat generation distribution is obtained by appropriately installing a gap from a magnetic field generating means by applying an insulating material to the surface of the electromagnetic induction heat generation member 1; (4) temperature rising at the end in paper guiding is suppressed by applying a good heat conducting member to the surface of the electromagnetic induction heat generation member 1; and (5) a desirable heat generation distribution is obtained by applying a member having a different coefficient of resistivity rising to the surface of the electromagnetic induction heat generation member 1.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了提供防止或减少电磁感应发热元件的端部的热松弛的装置结构或者通过使发热分配控制不需要通过加热励磁线圈或具有电磁感应加热型加热装置中的磁场产生装置的铁氧体磁心的构造，图像加热装置和具有图像加热装置的图像形成装置。解决方案：（1）通过将工件1a传导到电磁感应发热件1的表面，通过改变表面的电阻率来改变发热分布; （2）通过在电磁感应发热元件1的表面上施加导电材料来控制涡电流流动的区域来获得期望的发热分布; （3）通过向电磁感应发热体1的表面施加绝缘材料，适当地设置从磁场产生装置的间隙获得所需的发热分布; （4）通过在电磁感应发热构件1的表面上施加良好的导热构件来抑制纸引导端的温度上升; （5）通过将具有不同电阻率上升系数的构件施加到电磁感应发热构件1的表面来获得期望的发热分布。版权所有（C）2004，JPO

9. 发明专利

JP2012170289A Discharge circuit and power supply 有权
标题翻译：放电电路和电源
公开(公告)号：JP2012170289A
公开(公告)日：2012-09-06
申请号：JP2011031038
申请日：2011-02-16
申请人： Canon Inc , キヤノン株式会社
发明人： KOBAYASHI JUNYA , HAYASHIZAKI MINORU
IPC分类号： H02M7/06
CPC分类号： H02M1/32 , H02M2001/322
摘要： PROBLEM TO BE SOLVED: To immediately discharge residual charge of an X capacitor in a power supply and suppress power consumption of a discharge circuit.SOLUTION: A discharge circuit includes: a filter circuit connected between input lines of an AC power supply; a switch the operation of which is controlled by the filter circuit; and a discharge circuit that discharges voltage of a capacitive element when the switch is on.

10. 发明专利

JP2012139024A Dc power supply device with intermittent oscillation mode 审中-公开
标题翻译：具有间歇振荡模式的直流电源装置
公开(公告)号：JP2012139024A
公开(公告)日：2012-07-19
申请号：JP2010289429
申请日：2010-12-27
申请人： Canon Inc , キヤノン株式会社
发明人： SAMEJIMA KEISUKE , HAYASHIZAKI MINORU
IPC分类号： H02M3/28
摘要： PROBLEM TO BE SOLVED: To reduce power consumption by improving the conversion efficiency of a switching power supply device in a system capable of relieving a load during an apparatus on standby and lowering an output voltage of the switching power supply device.SOLUTION: A self-excited switching power supply device, including: a switching element; switching control means that controls switching timing of the switching element; error detection means that compares a secondary output voltage with a reference voltage and outputs an error voltage according to the comparative result; and load detection means that detects an output load, is configured to stop an output of the switching control means or the error detection means by the time long enough to stop the operation of the switching element according to the output load.
摘要翻译：要解决的问题：通过提高在待机设备期间能够减轻负载的系统中的开关电源装置的转换效率和降低开关电源装置的输出电压来降低功耗。解决方案：一种自激式开关电源装置，包括：开关元件; 开关控制装置，其控制所述开关元件的开关定时; 误差检测装置，用于将次级输出电压与参考电压进行比较，并根据比较结果输出误差电压; 以及负载检测装置，其检测输出负载，被配置为在所述时间足够长的时间内停止所述切换控制装置或所述错误检测装置的输出，以便根据所述输出负载来停止所述开关元件的操作。版权所有（C）2012，JPO＆INPIT

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