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公开(公告)号：US07755328B2
公开(公告)日：2010-07-13
申请号：US11725912
申请日：2007-03-19
IPC分类号： H02J7/04
CPC分类号： H02J7/06 , H02J7/0072
摘要： An exemplary charging circuit (200) includes for charging a load component (210) includes a power supply unit (220), a feedback circuit, and a sampling resistor (230). The power supply unit includes a pulse width modulation circuit (221) and a power output terminal (222) configured to output a direct current supply. The feedback circuit includes an amplifying comparator (241), a constant voltage circuit (242), a transistor (243), and an optoelectrical coupler (244). The constant voltage circuit is configured to generate a reference voltage and apply the reference voltage to a negative input terminal of the amplifier comparator. An output terminal of the amplifier comparator is connected to the pulse width modulation circuit via the transistor and the optoelectrical coupler. The sampling resistor includes a current sampling terminal connected to a positive input terminal of the amplifier comparator.
摘要翻译： 示例性充电电路（200）包括用于对负载组件（210）充电，其包括电源单元（220），反馈电路和采样电阻器（230）。 电源单元包括被配置为输出直流电源的脉宽调制电路（221）和功率输出端子（222）。 反馈电路包括放大比较器（241），恒压电路（242），晶体管（243）和光电耦合器（244）。 恒压电路被配置为产生参考电压并将参考电压施加到放大器比较器的负输入端。 放大器比较器的输出端经由晶体管和光电耦合器连接到脉宽调制电路。 采样电阻器包括连接到放大器比较器的正输入端的电流采样端子。
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12.发明授权Multiplexed DC voltage regulation output circuit having control circuit for stabilizing output voltages 有权具有用于稳定输出电压的控制电路的多路直流稳压输出电路公开(公告)号：US07684219B2
公开(公告)日：2010-03-23
申请号：US11901364
申请日：2007-09-17
CPC分类号： H02J1/08 , H02M7/2176 , H02M2001/009 , Y10T307/675
摘要： An exemplary multiplexed DC voltage regulation output circuit (2) comprises a first output circuit, a second output circuit, a transformer (21), a power control chip (22), a feedback circuit (20), and a control circuit (26). The first output circuit is configured for outputting low voltage. The second output circuit is configured for outputting high voltage. The transformer is configured for outputting voltages to the first output circuit and the second output circuit. The feedback circuit feeds composite signals from the first output circuit and the second output circuit back to the power control chip. The power control chip adjusts the output voltages of the transformer by changing impulse width of voltages transmitted into the transformer in accordance with the composite signals. The control circuit controls the output voltage of the second output circuit back to a normal high voltage when the output voltage is higher than normal.
摘要翻译： 示例性的多路复用的直流电压调节输出电路（2）包括第一输出电路，第二输出电路，变压器（21），功率控制芯片（22），反馈电路（20）和控制电路（26） 。 第一输出电路被配置为输出低电压。 第二输出电路被配置为输出高电压。 变压器被配置为向第一输出电路和第二输出电路输出电压。 反馈电路将来自第一输出电路和第二输出电路的复合信号馈送回功率控制芯片。 功率控制芯片通过根据复合信号改变传输到变压器的电压的脉冲宽度来调节变压器的输出电压。 当输出电压高于正常值时，控制电路将第二输出电路的输出电压控制回正常的高电压。
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公开(公告)号：US20090153539A1
公开(公告)日：2009-06-18
申请号：US12316462
申请日：2008-12-12
IPC分类号： G09G5/00
CPC分类号： G09G3/3696 , G09G2330/02
摘要： An exemplary power supply circuit includes an output terminal configured for providing electric power to a load circuit, a direct current (DC) power supply, a first resistor, a second resistor, a first switch and a second switch. The first switch includes a control electrode is grounded via the first resistor, a first current conducting electrode is connected to the DC power supply, and a second current conducting electrode is connected to the output terminal. The second switch includes a control electrode is connected to the output terminal, a first current conducting electrode is connected to the DC power supply, and a second current conducting electrode is connected to the control electrode of the first switch. The second resistor is interconnected the first current conducting electrode of the first switch and the second current conducting electrode of the first switch.
摘要翻译： 示例性电源电路包括被配置为向负载电路，直流（DC）电源，第一电阻器，第二电阻器，第一开关和第二开关提供电力的输出端子。 第一开关包括控制电极经由第一电阻器接地，第一导电电极连接到直流电源，第二导电电极连接到输出端子。 第二开关包括控制电极连接到输出端子，第一导电电极连接到直流电源，第二导电电极连接到第一开关的控制电极。 第二电阻器与第一开关的第一导电电极和第一开关的第二导电电极相互连接。
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14.发明申请Multiplexed direct current regulation output circuit having balance control circuit 有权具有平衡控制电路的多路直流调节输出电路公开(公告)号：US20080211312A1
公开(公告)日：2008-09-04
申请号：US12011697
申请日：2008-01-28
申请人： Tong Zhou , Kun Le , Huai-Zhu Yan
发明人： Tong Zhou , Kun Le , Huai-Zhu Yan
CPC分类号： H02M3/33507 , Y10T307/625 , Y10T307/675
摘要： An exemplary multiplexed direct current regulation output circuit (2) includes a feedback circuit (22), a sampling circuit (30), a power control chip (21), a first output (27), a second output (28), a first half wave rectifier circuit (23), a second half wave rectifier circuit (24), a first filter circuit (25), a second filter circuit (26), a transformer (20), and a balance control circuit (29). The transformer is configured to provide low voltages to the first output via the first half wave rectifier circuit and the first filter circuit in series, and provide high voltages to the second output via the second half wave rectifier circuit and the second filter circuit in series. The balance control circuit is configured to control a voltage at the second output.
摘要翻译： 示例性的多路复用直流调节输出电路（2）包括反馈电路（22），采样电路（30），功率控制芯片（21），第一输出（27），第二输出（28），第一 半波整流电路（23），第二半波整流电路（24），第一滤波电路（25），第二滤波电路（26），变压器（20）和平衡控制电路（29）。 变压器被配置为经由第一半波整流器电路和第一滤波器电路串联地向第一输出提供低电压，并且经由第二半波整流器电路和第二滤波器电路串联地向第二输出提供高电压。 平衡控制电路被配置为控制第二输出端的电压。
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公开(公告)号：US20080106539A1
公开(公告)日：2008-05-08
申请号：US11982867
申请日：2007-11-05
IPC分类号： G09G5/00
CPC分类号： G09G3/36 , G09G3/3406 , G09G2330/02
摘要： An exemplary power supply circuit (3) for a liquid crystal display device includes an interface board (30) having a first DC/DC converter (32), and a power board (31) having an AC/DC converter (37), a second DC/DC converter (35), and an inverter (33). The AC/DC converter is configured for supplying a DC voltage to the first and second DC/DC converters. The first DC/DC converter is configured for converting the DC voltage to operating voltages desired by other circuits of the interface board, and the second DC/DC converter is configured for converting the DC voltage to an operating voltage desired by a main chip of the inverter.
摘要翻译： 一种用于液晶显示装置的示例性电源电路（3）包括具有第一DC / DC转换器（32）的接口板（30）和具有AC / DC转换器（37）的电源板（31）， 第二DC / DC转换器（35）和逆变器（33）。 AC / DC转换器被配置为向第一和第二DC / DC转换器提供DC电压。 第一DC / DC转换器被配置为将DC电压转换为接口板的其他电路所需的工作电压，并且第二DC / DC转换器被配置为将DC电压转换为由主芯片所期望的工作电压 逆变器。
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公开(公告)号：US20060108990A1
公开(公告)日：2006-05-25
申请号：US11285261
申请日：2005-11-21
申请人： Chun-Hao Chang , Tong Zhou , Kun Le , Jia-Hui Tu
发明人： Chun-Hao Chang , Tong Zhou , Kun Le , Jia-Hui Tu
IPC分类号： G05F1/56
CPC分类号： G05F1/565
摘要： A linearly regulated power supply is provided for providing a load voltage to a load. In a preferred embodiment, the linearly regulated power supply includes: a voltage divider module for receiving a backup voltage and then providing a voltage reference; a controlling module for receiving the voltage reference and then providing a controlling voltage; and a regulating module receiving the controlling voltage and then regulating a core voltage down to a load voltage, the regulating module providing the load voltage to a load. The linearly regulated power supply is capable of reducing the power of the transistor, and has a higher efficiency.
摘要翻译： 提供线性稳压电源，用于向负载提供负载电压。 在优选实施例中，线性稳压电源包括：分压器模块，用于接收备用电压，然后提供电压基准; 控制模块，用于接收所述电压参考，然后提供控制电压; 以及调节模块，其接收所述控制电压，然后将核心电压调节到负载电压，所述调节模块向负载提供负载电压。 线性稳压电源能够降低晶体管的功率，并具有更高的效率。
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公开(公告)号：US08350838B2
公开(公告)日：2013-01-08
申请号：US12316462
申请日：2008-12-12
CPC分类号： G09G3/3696 , G09G2330/02
摘要： An exemplary power supply circuit includes an output terminal configured for providing electric power to a load circuit, a direct current (DC) power supply, a first resistor, a second resistor, a first switch and a second switch. The first switch includes a control electrode is grounded via the first resistor, a first current conducting electrode is connected to the DC power supply, and a second current conducting electrode is connected to the output terminal. The second switch includes a control electrode is connected to the output terminal, a first current conducting electrode is connected to the DC power supply, and a second current conducting electrode is connected to the control electrode of the first switch. The second resistor is interconnected the first current conducting electrode of the first switch and the second current conducting electrode of the first switch.
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18.发明授权公开(公告)号：US07808803B2
公开(公告)日：2010-10-05
申请号：US11982968
申请日：2007-11-05
申请人： Jin-Liang Xiong , Tong Zhou , Jian-Hui Lu , Kun Le
发明人： Jin-Liang Xiong , Tong Zhou , Jian-Hui Lu , Kun Le
IPC分类号： H02M7/538
CPC分类号： H02M7/5381 , Y10T307/50
摘要： An exemplary inverter circuit (200) includes a direct current (DC) input terminal (210); a transformer (230) including a first primary winding (231) and a second primary winding (232); a first switch transistor (240); a second switch transistor (250); a pulse generator (260) providing pulse driving signals to the first switch transistor and the second transistor respectively; and a resistor (29). The first primary winding and the second primary winding share a tap (235), the tap is connected to the DC input terminal via the resistor. A drain electrode of the first switch transistor is connected to the tap via the first primary winding, and a drain electrode of the second switch transistor is connected to the tap via the second primary winding.
摘要翻译： 示例性的逆变器电路（200）包括直流（DC）输入端子（210）; 包括第一初级绕组（231）和第二初级绕组（232）的变压器（230）; 第一开关晶体管（240）; 第二开关晶体管（250）; 脉冲发生器（260），分别向第一开关晶体管和第二晶体管提供脉冲驱动信号; 和电阻（29）。 第一初级绕组和第二初级绕组共享一个抽头（235），抽头通过电阻连接到直流输入端。 第一开关晶体管的漏电极经由第一初级绕组连接到抽头，并且第二开关晶体管的漏电极经由第二初级绕组连接到抽头。
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公开(公告)号：US20090010030A1
公开(公告)日：2009-01-08
申请号：US12217357
申请日：2008-07-02
IPC分类号： H02M7/44
CPC分类号： H02M3/33523
摘要： An exemplary power supply circuit (200) includes a pulse width modulation circuit (220) providing a pulse signal, a voltage conversion circuit (210) converting a primary voltage to an output voltage according to the pulse signal, a feedback circuit (260), and a control circuit (290). The feedback circuit includes a sampling branch (261) detecting a current of the voltage conversion circuit and accordingly providing a feedback signal, and a voltage division branch (262) electrically coupled to the sampling branch. The control circuit is electrically coupled to the voltage division branch, and is configured for disabling the voltage division branch after a predetermined period of time when the output voltage is within a predetermined range.
摘要翻译： 示例性电源电路（200）包括提供脉冲信号的脉宽调制电路（220），根据脉冲信号将初级电压转换为输出电压的电压转换电路（210），反馈电路（260） 和控制电路（290）。 反馈电路包括检测电压转换电路的电流并因此提供反馈信号的采样分支（261），以及电耦合到采样分支的分压支路（262）。 控制电路电耦合到分压支路，并且被配置为在输出电压在预定范围内的预定时间段之后禁用分压支路。
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20.发明申请Power supply control circuit having controllable switch and liquid crystal display using the same 有权电源控制电路具有可控开关和使用其的液晶显示器公开(公告)号：US20080180977A1
公开(公告)日：2008-07-31
申请号：US12011977
申请日：2008-01-29
申请人： Jie-Jian Zheng , Tong Zhou , Jian-Hui Lu , Hua Xiao , Kun Le
发明人： Jie-Jian Zheng , Tong Zhou , Jian-Hui Lu , Hua Xiao , Kun Le
CPC分类号： H02J9/005
摘要： An exemplary power supply control circuit (200) includes a first port (201), a second port (202), a third port (203), a controllable switch (280), and a control circuit (270). The first and second ports are configured to receive a power supply voltage signal. The second and third ports are configured to output the power supply voltage signal to a load circuit. The controllable switch includes a control member (281) and a switch member (282 ). The control circuit is configured to control a working state of the control member. When the load circuit stops working, the control circuit controls the control member to control the switch member to be disconnected, so as to cut off the power supply voltage signal from outputting to the load circuit. A liquid crystal display (400) using the power supply control circuit is also provided.
摘要翻译： 示例性电源控制电路（200）包括第一端口（201），第二端口（202），第三端口（203），可控开关（280）和控制电路（270）。 第一和第二端口被配置为接收电源电压信号。 第二和第三端口被配置为将电源电压信号输出到负载电路。 可控开关包括控制构件（281）和开关构件（282）。 控制电路被配置为控制控制构件的工作状态。 当负载电路停止工作时，控制电路控制控制构件以控制开关构件的断开，从而将电源电压信号切断输出到负载电路。 还提供了使用电源控制电路的液晶显示器（400）。
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