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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：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：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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