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1. 发明授权

US11914315B2 Image forming apparatus that fixes toner image to recording medium using first and second heaters supplied with current during overlapping time periods 有权
公开(公告)号：US11914315B2
公开(公告)日：2024-02-27
申请号：US17867878
申请日：2022-07-19
申请人： CANON KABUSHIKI KAISHA
发明人： Hiroshi Oguri
IPC分类号： G03G15/20 , H05B1/00 , H05B41/00 , H05B47/00 , G03G15/00 , H05B1/02 , H05B41/24 , H05B3/00 , H05B41/38 , H05B47/155
CPC分类号： G03G15/205 , G03G15/2039 , G03G15/5004 , H05B1/0241 , H05B3/0066 , H05B41/245 , H05B41/382 , H05B47/155 , G03G2215/2038
摘要： In a caser where a first current is supplied to a first heater, a controller gradually increases the first current in a first period, supplies the first current based on a first duty cycle in a second period, and gradually reduces the first current to stop supplying the first current in a third period. In a case where a second current is supplied to a second heater, the controller gradually increases the second current in a fourth period, supply the second current based on a second duty cycle in a fifth period, and gradually reduces the second current to stop supplying the second current in a sixth period. The controller controls the supply of the second current such that part of the fourth period overlaps with the third period.

2. 发明申请

US20150264762A1 Controlled Power Dissipation in a Switch Path in a Lighting System 审中-公开
标题翻译：照明系统中开关路径中的受控功耗
公开(公告)号：US20150264762A1
公开(公告)日：2015-09-17
申请号：US14727995
申请日：2015-06-02
申请人： Cirrus Logic, Inc.
发明人： John L. Melanson , Eric J. King
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H02M1/4225 , H02M2001/0045 , H05B33/0842 , H05B41/245 , H05B41/2928 , H05B41/34 , Y02B20/346 , Y02B70/126
摘要： A lighting system includes one or more methods and systems to control dissipation of excess power in the lighting system when the power into a switching power converter from a leading edge, phase-cut dimmer is greater than the power out of the switching power converter. In at least one embodiment, the lighting system includes a controller that controls dissipation of excess energy in the lighting system to prevent a premature disconnection of the phase-cut dimmer. In at least one embodiment, the controller actively controls power dissipation by generating one or more signals to actively and selectively control power dissipation in the lighting system. By actively and selectively controlling power dissipation in the lighting system, the controller intentionally dissipates power when the power into the lighting system should be greater than the power out to a lamp of the lighting system. In at least one embodiment, the controller creates one or more intermixed and/or interspersed power dissipation phases with one or more switching power converter charging and/or flyback phases.
摘要翻译：照明系统包括一个或多个方法和系统，用于当来自前沿的切换调光器的功率大于开关功率转换器的功率时，控制照明系统中多余功率的耗散。在至少一个实施例中，照明系统包括控制器，其控制照明系统中的多余能量的耗散以防止相位切割调光器的过早断开。在至少一个实施例中，控制器通过产生一个或多个信号主动地和有选择地控制照明系统中的功率耗散来主动地控制功率耗散。通过积极和选择性地控制照明系统中的功率消耗，当进入照明系统的电力应大于照明系统的灯的电力时，控制器有意地耗散功率。在至少一个实施例中，控制器利用一个或多个开关功率转换器充电和/或反激阶段创建一个或多个混合和/或散置的功率耗散相位。

3. 发明授权

US09084316B2 Controlled power dissipation in a switch path in a lighting system 有权
标题翻译：照明系统中开关路径中的受控功耗
公开(公告)号：US09084316B2
公开(公告)日：2015-07-14
申请号：US13289845
申请日：2011-11-04
申请人： John L. Melanson , Eric J. King
发明人： John L. Melanson , Eric J. King
IPC分类号： H05B33/08 , H02M1/42 , H05B41/24 , H05B41/292 , H05B41/34 , H02M1/00
CPC分类号： H05B33/0815 , H02M1/4225 , H02M2001/0045 , H05B33/0842 , H05B41/245 , H05B41/2928 , H05B41/34 , Y02B20/346 , Y02B70/126
摘要： A lighting system includes one or more methods and systems to control dissipation of excess power in the lighting system when the power into a switching power converter from a leading edge, phase-cut dimmer is greater than the power out of the switching power converter. In at least one embodiment, the lighting system includes a controller that controls dissipation of excess energy in the lighting system to prevent a premature disconnection of the phase-cut dimmer. In at least one embodiment, the controller actively controls power dissipation by generating one or more signals to actively and selectively control power dissipation in the lighting system. By actively and selectively controlling power dissipation in the lighting system, the controller intentionally dissipates power when the power into the lighting system should be greater than the power out to a lamp of the lighting system.
摘要翻译：照明系统包括一个或多个方法和系统，用于当来自前沿的切换调光器的功率大于开关功率转换器的功率时，控制照明系统中多余功率的耗散。在至少一个实施例中，照明系统包括控制器，其控制照明系统中的多余能量的耗散以防止相位切割调光器的过早断开。在至少一个实施例中，控制器通过产生一个或多个信号主动地和有选择地控制照明系统中的功率耗散来主动地控制功率耗散。通过积极和选择性地控制照明系统中的功率消耗，当进入照明系统的电力应大于照明系统的灯的电力时，控制器有意地耗散功率。

4. 发明申请

US20130106300A1 PASSIVE LC BALLAST AND METHOD OF MANUFACTURING A PASSIVE LC BALLAST 有权
标题翻译：被动液相色谱和制造被动液相色谱的方法
公开(公告)号：US20130106300A1
公开(公告)日：2013-05-02
申请号：US13505835
申请日：2009-11-03
申请人： Ron Shu Yuen Hui , Wai Man Ng , Deyan Lin
发明人： Ron Shu Yuen Hui , Wai Man Ng , Deyan Lin
IPC分类号： H05B41/24 , H05B41/02
CPC分类号： H05B41/24 , H01F38/10 , H05B41/02 , H05B41/245 , H05B41/295 , Y10T29/49002
摘要： The present invention provides a passive LC ballast and an associated method of manufacturing a passive LC ballast for use with any one of a plurality of high voltage discharge lamps. The passive LC ballast has an inductance and a capacitance selected in accordance with one of a set of one or more inductance-capacitance pairs. Each inductance-capacitance pair defines a respective inductance and a respective capacitance such that, when the inductance and the capacitance of the passive LC ballast is selected in accordance with any one of the inductance-capacitance pairs and the passive LC ballast is used with any one of the lamps, the lamp operates between respective minimum and maximum lamp powers of the lamp.
摘要翻译：本发明提供一种无源LC镇流器以及与多个高压放电灯中的任何一个一起使用的无源LC镇流器的相关方法。无源LC镇流器具有根据一组一个或多个电感 - 电容对选择的电感和电容。每个电感 - 电容对限定相应的电感和相应的电容，使得当根据任何一个电感 - 电容对和无源LC镇流器选择无源LC镇流器的电感和电容时，任何一个使用的灯，灯在灯的相应的最小和最大灯功率之间运行。

5. 发明授权

US07992332B2 Apparatuses for providing power for illumination of a display object 有权
标题翻译：用于提供用于照明显示对象的电力的装置
公开(公告)号：US07992332B2
公开(公告)日：2011-08-09
申请号：US12119500
申请日：2008-05-13
申请人： Mark D. Lowenthal , David R. Bowden , William Johnstone Ray , Peter Michael Bray
发明人： Mark D. Lowenthal , David R. Bowden , William Johnstone Ray , Peter Michael Bray
IPC分类号： G09F9/00
CPC分类号： G09F9/00 , H05B33/0815 , H05B33/0845 , H05B41/245
摘要： An exemplary power regulator apparatus provides power for illumination of a display object, such as a merchandise package or container, which has a light emitting apparatus comprising a secondary inductor and an illumination source. A support structure, such as a point of purchase display, typically contains or supports one or more power regulators and display objects. The power regulator comprises a controller and a primary inductor, and the controller is adapted to provide a voltage or current to the primary inductor to generate a primary inductor voltage. The controller may also comprise a plurality of switches and a memory adapted to store values for switching frequency or switch on-time durations or pulse widths. The illumination source emits visible light when the power regulator is in an on state and when the secondary inductor is within a predetermined distance of the primary inductor.
摘要翻译：示例性的功率调节装置提供用于照明具有包括次级电感器和照明源的发光装置的显示对象（例如商品包装或容器）的电力。支持结构，例如购买点显示，通常包含或支持一个或多个功率调节器和显示对象。功率调节器包括控制器和初级电感器，并且控制器适于向初级电感器提供电压或电流以产生初级电感器电压。控制器还可以包括多个开关和适于存储开关频率或开关导通时间持续时间或脉冲宽度的值的存储器。当功率调节器处于导通状态时，以及当次级电感器在初级电感器的预定距离内时，照明源发出可见光。

6. 发明授权

US07835161B2 DC-AC converter and method of supplying AC power 有权
标题翻译： DC-AC转换器及交流电源的供电方式
公开(公告)号：US07835161B2
公开(公告)日：2010-11-16
申请号：US12536279
申请日：2009-08-05
申请人： Kenichi Fukumoto
发明人： Kenichi Fukumoto
IPC分类号： H02M3/335 , H02M3/24 , H02M7/5387 , H02H7/122 , H02J1/00
CPC分类号： H05B41/245 , H02M7/53803 , H02M7/53871 , H02M2001/008 , H05B41/2824 , H05B41/2828 , H05B41/3927 , Y02B20/186
摘要： A dc-ac converter capable of supplying a finely regulated ac drive voltage to a load is provided. For this purpose, the converter includes, in a primary winding of a transformer, a full-bridge or half-bridge type semiconductor switch circuit whose switch can be controlled by pulse-width modulation. Transformer has a secondary winding for connection with a load. Based on PWM signals and by use of adequate switching logics for controlling multiple semiconductor switches, sophisticated control including zero-current switching and penetrating current prevention can be effected. Moreover, by means of regulated burst control of the ratio of on-duty period to off-duty period together with pulse-width modulation control, power supplied to the load can be regulated over a wide range beyond the limits of control obtained by the pulse-width modulation.
摘要翻译：提供了能够将精细调节的交流驱动电压提供给负载的dc-ac转换器。为此，转换器在变压器的初级绕组中包括全桥或半桥式半导体开关电路，其开关可以通过脉冲宽度调制来控制。变压器具有用于与负载连接的次级绕组。基于PWM信号和通过使用适当的开关逻辑来控制多个半导体开关，可以实现包括零电流切换和穿透电流预防的复杂控制。此外，通过脉冲宽度调制控制的占空比与非占空比的比率的调节脉冲串控制，可以在超过由脉冲获得的控制极限的宽范围内调节提供给负载的功率宽带调制。

7. 发明申请

US20100014336A1 DC-AC Converter and Method of Supplying AC Power 有权
标题翻译： DC-AC转换器及交流电源供电方式
公开(公告)号：US20100014336A1
公开(公告)日：2010-01-21
申请号：US12536279
申请日：2009-08-05
申请人： Kenichi FUKUMOTO
发明人： Kenichi FUKUMOTO
IPC分类号： H02M7/5387
CPC分类号： H05B41/245 , H02M7/53803 , H02M7/53871 , H02M2001/008 , H05B41/2824 , H05B41/2828 , H05B41/3927 , Y02B20/186
摘要： A dc-ac converter capable of supplying a finely regulated ac drive voltage to a load is provided. For this purpose, the converter includes, in a primary winding of a transformer, a full-bridge or half-bridge type semiconductor switch circuit whose switch can be controlled by pulse-width modulation. Transformer has a secondary winding for connection with a load. Based on PWM signals and by use of adequate switching logics for controlling multiple semiconductor switches, sophisticated control including zero-current switching and penetrating current prevention can be effected. Moreover, by means of regulated burst control of the ratio of on-duty period to off-duty period together with pulse-width modulation control, power supplied to the load can be regulated over a wide range beyond the limits of control obtained by the pulse-width modulation.
摘要翻译：提供了能够将精细调节的交流驱动电压提供给负载的dc-ac转换器。为此，转换器在变压器的初级绕组中包括全桥或半桥式半导体开关电路，其开关可以通过脉冲宽度调制来控制。变压器具有用于与负载连接的次级绕组。基于PWM信号和通过使用适当的开关逻辑来控制多个半导体开关，可以实现包括零电流切换和穿透电流预防的复杂控制。此外，通过脉冲宽度调制控制的占空比与非占空比的比率的调节脉冲串控制，可以在超过由脉冲获得的控制极限的宽范围内调节提供给负载的功率宽带调制。

8. 发明申请

US20090284164A1 Illuminating Display Systems 有权
标题翻译：照明显示系统
公开(公告)号：US20090284164A1
公开(公告)日：2009-11-19
申请号：US12119496
申请日：2008-05-13
申请人： William Johnstone Ray , Mark D. Lowenthal , David R. Bowden , Peter Michael Bray
发明人： William Johnstone Ray , Mark D. Lowenthal , David R. Bowden , Peter Michael Bray
IPC分类号： H05B37/02 , H01J9/02
CPC分类号： G09F9/37 , A47F3/001 , G09F13/00 , G09G3/14 , G09G2330/028 , H01F38/14 , H02J5/005 , H02J7/025 , H02J50/12 , H05B33/0815 , H05B37/0209 , H05B37/0227 , H05B41/245
摘要： An exemplary system comprises a power regulator and an emitting apparatus. The emitting apparatus is typically attached to or integrated with a display object, such as a merchandise package or container. A support structure, such as a point of purchase display, typically contains or supports one or more power regulators and display objects. The power regulator comprises a controller and a primary inductor, and the controller is adapted to provide a voltage or current to the primary inductor to generate a first primary inductor voltage. The emitting apparatus comprises an illumination source and a secondary inductor coupled to the illumination source. The illumination source is adapted to emit visible light when the power regulator is in an on state and when the secondary inductor is within a predetermined distance of the primary inductor. In exemplary embodiments, the first and second inductors are substantially planar.
摘要翻译：示例性系统包括功率调节器和发射设备。发光装置通常附接到显示对象，例如商品包装或容器上或与显示对象集成。支持结构，例如购买点显示，通常包含或支持一个或多个功率调节器和显示对象。功率调节器包括控制器和初级电感器，并且控制器适于向初级电感器提供电压或电流以产生第一初级电感器电压。发光装置包括照明源和耦合到照明源的次级电感器。当功率调节器处于导通状态并且次级电感器在初级电感器的预定距离内时，照明源适于发射可见光。在示例性实施例中，第一和第二电感器基本上是平面的。

9. 发明申请

US20090224696A1 ELECTRONIC BALLAST WITH HIGHER STARTUP VOLTAGE 有权
标题翻译：具有较高启动电压的电子镇流器
公开(公告)号：US20090224696A1
公开(公告)日：2009-09-10
申请号：US11720844
申请日：2005-12-08
申请人： Ramakrishnan Venkatraman , Romel Panlilio
发明人： Ramakrishnan Venkatraman , Romel Panlilio
IPC分类号： H05B41/36
CPC分类号： H05B41/245 , H05B41/282 , Y02B20/183
摘要： An electronic ballast with higher startup voltage includes converter with a switching circuit (40) responsive to a switching control signal (50) and operably connected to a DC bus (30); a DC controller (44) comparing a sensed DC bus voltage signal and a reference DC bus voltage signal to generate the switching control signal (50); and a startup adjustor operably connected to the DC controller (44) to adjust at least one of the sensed DC bus voltage signal and the reference DC bus voltage signal for a predetermined time at startup so that startup DC bus voltage is greater than steady state DC bus voltage.
摘要翻译：具有较高启动电压的电子镇流器包括具有响应于开关控制信号（50）并且可操作地连接到DC总线（30）的开关电路（40）的转换器; 比较感测的直流母线电压信号和基准直流母线电压信号以产生开关控制信号的直流控制器（44）; 以及启动调节器，其可操作地连接到所述DC控制器（44），以在启动时调整所感测的直流总线电压信号和所述参考DC总线电压信号中的至少一个预定时间，使得启动DC总线电压大于稳态DC 总线电压。

10. 发明申请

US20090174644A1 Liquid crystal display device having an improved backlight 有权
标题翻译：具有改进的背光的液晶显示装置
公开(公告)号：US20090174644A1
公开(公告)日：2009-07-09
申请号：US12382029
申请日：2009-03-06
申请人： Toshihiro Yajima , Seiichi Nishiyama , Shigetake Takaku , Yoshiharu Takeda , Shigeo Mikoshiba , Tomokazu Shiga , Koji Hashimoto , Yusuke Baba
发明人： Toshihiro Yajima , Seiichi Nishiyama , Shigetake Takaku , Yoshiharu Takeda , Shigeo Mikoshiba , Tomokazu Shiga , Koji Hashimoto , Yusuke Baba
IPC分类号： G09G3/36
CPC分类号： G02F1/133604 , G02F1/133605 , G02F1/133608 , G02F2001/133317 , G02F2001/13332 , G02F2001/133334 , G02F2001/133612 , G09G3/3406 , G09G2320/0233 , H01J65/046 , H05B41/245 , H05B41/2822
摘要： A liquid crystal display device includes a liquid crystal display panel having a liquid crystal layer sandwiched between a pair of transparent substrates, at least one of which has patterned electrodes on an inner surface thereof, and a backlight disposed behind the liquid crystal display panel. The backlight has at least one discharge tube including a sealed-off transparent tube, a phosphor film formed on an inner surface of the sealed-off transparent tube, and a discharge gas within the sealed-off transparent tube and plural electrodes spaced in a direction of an axis of the sealed-off transparent tube and positioned at least partially around a circumference of the sealed-off transparent tube. At least two adjacent ones of the plural electrodes is supplied with alternating voltages different in frequency from each other, respectively.
摘要翻译：液晶显示装置包括液晶显示面板，液晶显示面板具有夹在一对透明基板之间的液晶层，其中至少一个在其内表面上具有图形电极，以及设置在液晶显示面板后面的背光。该背光具有至少一个放电管，其包括密封的透明管，形成在密封的透明管的内表面上的荧光膜，以及密封的透明管内的放电气体和沿着方向并且至少部分地围绕密封的透明管的圆周定位。多个电极中的至少两个相邻的电极被分别供给彼此频率不同的交流电压。

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