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公开(公告)号：US07583061B2
公开(公告)日：2009-09-01
申请号：US11648806
申请日：2007-01-03
申请人： Shu-Zhuang Lu , Tao Peng
发明人： Shu-Zhuang Lu , Tao Peng
IPC分类号： H01M10/46
CPC分类号： H02J7/008 , H02J7/0029
摘要： A PWM controller includes a short circuit mode circuit which has input ends connecting simultaneously to a power supply input end and an output end of an output driving circuit, and an oscillator which has a temperature compensation circuit that includes a medium value multi-transistor resistor of a negative temperature coefficient and a well resistor of a positive temperature coefficient. The invention also provides a charger circuit which includes the PWM controller set forth above and a constant voltage/current control circuit coupling with the PWM controller through a transformer. A system adopting the PWM controller circuit and charger circuit of the invention does not need a voltage stabilization diode now equipped in many conventional designs. The invention provides an improved short circuit protection and eliminates low frequency harmonic waves.
摘要翻译： PWM控制器包括短路模式电路，其具有同时连接到电源输入端和输出驱动电路的输出端的输入端，以及具有温度补偿电路的振荡器，该温度补偿电路包括中间值多晶体管电阻器 负温度系数和正温度系数的阱电阻。 本发明还提供一种充电器电路，其包括上述PWM控制器和通过变压器与PWM控制器耦合的恒压/电流控制电路。 采用本发明的PWM控制器电路和充电器电路的系统不需要现有的许多常规设计中的稳压二极管。 本发明提供改进的短路保护并消除低频谐波。
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公开(公告)号：US20080164837A1
公开(公告)日：2008-07-10
申请号：US11649855
申请日：2007-01-05
申请人： Shu-Zhuang Lu , Chao-Qun Sun
发明人： Shu-Zhuang Lu , Chao-Qun Sun
摘要： The present invention discloses a transformer used in a charger circuit, in which the input side of the transformer is connected to an AC input and PWM control circuit of the charger circuit, the output side of the transformer is connected to a constant current and/or constant voltage control circuit of the charger circuit. The AC input, PWM control circuit, the constant current and/or constant voltage control circuit are coupled through an optical coupling element, wherein the transformer includes a main output winding and an auxiliary output winding, and the auxiliary output winding is used to supply power for the optical coupling element and the constant current and/or constant voltage control circuit. The present invention further provides a high performance charger circuit adopting the transformer described above for improving electromagnetic compatibility, conversion efficiency and short circuit characteristic.
摘要翻译： 本发明公开了一种用于充电器电路中的变压器，其中变压器的输入侧连接到充电器电路的AC输入和PWM控制电路，变压器的输出侧连接到恒定电流和/或 充电电路的恒压控制电路。 AC输入，PWM控制电路，恒流和/或恒压控制电路通过光耦合元件耦合，其中变压器包括主输出绕组和辅助输出绕组，辅助输出绕组用于供电 用于光耦合元件和恒流和/或恒压控制电路。 本发明还提供采用上述变压器的高性能充电器电路，用于提高电磁兼容性，转换效率和短路特性。
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公开(公告)号：US07633266B2
公开(公告)日：2009-12-15
申请号：US11649855
申请日：2007-01-05
申请人： Shu-Zhuang Lu , Chao-Qun Sun
发明人： Shu-Zhuang Lu , Chao-Qun Sun
摘要： The present invention discloses a transformer used in a charger circuit, in which the input side of the transformer is connected to an AC input and PWM control circuit of the charger circuit, the output side of the transformer is connected to a constant current and/or constant voltage control circuit of the charger circuit. The AC input, PWM control circuit, the constant current and/or constant voltage control circuit are coupled through an optical coupling element, wherein the transformer includes a main output winding and an auxiliary output winding, and the auxiliary output winding is used to supply power for the optical coupling element and the constant current and/or constant voltage control circuit. The present invention further provides a high performance charger circuit adopting the transformer described above for improving electromagnetic compatibility, conversion efficiency and short circuit characteristic.
摘要翻译： 本发明公开了一种用于充电器电路中的变压器，其中变压器的输入侧连接到充电器电路的AC输入和PWM控制电路，变压器的输出侧连接到恒定电流和/或 充电电路的恒压控制电路。 AC输入，PWM控制电路，恒流和/或恒压控制电路通过光耦合元件耦合，其中变压器包括主输出绕组和辅助输出绕组，辅助输出绕组用于供电 用于光耦合元件和恒流和/或恒压控制电路。 本发明还提供采用上述变压器的高性能充电器电路，用于提高电磁兼容性，转换效率和短路特性。
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公开(公告)号：US20080007226A1
公开(公告)日：2008-01-10
申请号：US11648806
申请日：2007-01-03
申请人： Shu-Zhuang Lu , Tao Peng
发明人： Shu-Zhuang Lu , Tao Peng
IPC分类号： H02J7/04
CPC分类号： H02J7/008 , H02J7/0029
摘要： A PWM controller includes a short circuit mode circuit which has input ends connecting simultaneously to a power supply input end and an output end of an output driving circuit, and an oscillator which has a temperature compensation circuit that includes a medium value multi-transistor resistor of a negative temperature coefficient and a well resistor of a positive temperature coefficient. The invention also provides a charger circuit which includes the PWM controller set forth above and a constant voltage/current control circuit coupling with the PWM controller through a transformer. A system adopted the PWM controller circuit and charger circuit of the invention does not need a voltage stabilization diode now equipped in many conventional designs. The invention provides an improved short circuit protection, eliminates low frequency harmonic waves, packages power transistors and the controller into a single TO-94, increases the cluster density and enhances the reliability of small packages.
摘要翻译： PWM控制器包括短路模式电路，其具有同时连接到电源输入端和输出驱动电路的输出端的输入端，以及具有温度补偿电路的振荡器，该温度补偿电路包括中间值多晶体管电阻器 负温度系数和正温度系数的阱电阻。 本发明还提供一种充电器电路，其包括上述PWM控制器和通过变压器与PWM控制器耦合的恒压/电流控制电路。 采用本发明的PWM控制器电路和充电器电路的系统不需要在许多常规设计中配备的稳压二极管。 本发明提供了改进的短路保护，消除低频谐波，将功率晶体管和控制器封装成单个TO-94，增加了集群密度并提高了小封装的可靠性。
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公开(公告)号：US20110199796A1
公开(公告)日：2011-08-18
申请号：US13094343
申请日：2011-04-26
申请人： XIN WU , SHU-ZHUANG LU
发明人： XIN WU , SHU-ZHUANG LU
IPC分类号： H02M3/335
CPC分类号： H02M3/33523
摘要： An improved structure of a power supply is based on an emitter-switched PWM controller and special structure transformer. An improved structure of a power supply mainly describes two primary side regulation (here called “PSR”) solutions based on above PWM controller that is used in charger/adapter solutions. These PSR solutions employ a transformer with special winding structure. It is required that adjacent reeling between its input bias winding and output winding, in which the input side of the transformer is connected to an AC input and an emitter-switched PWM controller, and the output side of the transformer is connected to a rectified diode. The present invention further provides low cost PSR solutions with higher system reliability, better line/load regulation, and short circuit characteristic.
摘要翻译： 改进的电源结构基于发射极开关PWM控制器和特殊结构变压器。 电源的改进结构主要描述了基于以上用于充电器/适配器解决方案的PWM控制器的两个初级侧调节（称为“PSR”）。 这些PSR解决方案采用具有特殊绕组结构的变压器。 要求其输入偏置绕组和输出绕组之间的相邻卷绕，其中变压器的输入侧连接到AC输入和发射极开关PWM控制器，变压器的输出侧连接到整流二极管 。 本发明还提供了具有更高的系统可靠性，更好的线路/负载调节和短路特性的低成本PSR解决方案。
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公开(公告)号：US20100052631A1
公开(公告)日：2010-03-04
申请号：US12200225
申请日：2008-08-28
申请人： Xin WU , Shu-Zhuang LU
发明人： Xin WU , Shu-Zhuang LU
IPC分类号： G05F1/00
CPC分类号： H02M3/33523
摘要： An improved structure of a power supply mainly discloses three PSR solutions based on a PWM controller that is used in charger/adapter solutions, in which a low voltage PNP transistor and zener diode composes error signal amplification circuit, or −431 typed shunt regulators senses and amplifies the input error signal caused by the changes of load or line voltage, or one diode and two resistors form sense circuit of error signal. These PSR solutions employ a transformer, in which the input side of the transformer is connected to an AC input and PWM controller, and the output side of the transformer is connected to a rectified diode. The present invention further provides low cost PSR solutions with higher system reliability, better line/load regulation, and short circuit characteristic.
摘要翻译： 电源的改进结构主要公开了三种基于PWM控制器的PSR解决方案，该控制器用于充电器/适配器解决方案中，其中低压PNP晶体管和齐纳二极管构成误差信号放大电路，或-431型分流调节器， 放大由负载或线路电压变化引起的输入误差信号，或者一个二极管和两个电阻器形成误差信号的检测电路。 这些PSR解决方案采用变压器，其中变压器的输入侧连接到交流输入和PWM控制器，变压器的输出侧连接到整流二极管。 本发明还提供了具有更高的系统可靠性，更好的线路/负载调节和短路特性的低成本PSR解决方案。
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