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    • 1. 发明申请
    • BATTERY CHARGING SYSTEM HAVING HIGH CHARGE RATE
    • 具有高充电率的电池充电系统
    • US20100127670A1
    • 2010-05-27
    • US12275837
    • 2008-11-21
    • Ke-Horng ChenHong-Wei HuangChia-Hsiang LinHsing-Yi Chen
    • Ke-Horng ChenHong-Wei HuangChia-Hsiang LinHsing-Yi Chen
    • H02J7/06
    • H02J7/0081G01R31/389
    • A charger including a regulator, a controller and a compensation-adjusting unit for accurately charging to a battery device is provided. The regulator provides a charging current to the battery device. The controller is coupled to the regulator for controlling the charging current. The compensation-adjusting unit is coupled to the regulator and the battery device for receiving a first reference voltage. In a first operation mode, the compensation-adjusting unit outputs the first reference voltage to the regulator. In a second operation mode, the controller instructs the regulator to transiently generate a first charging current and a second charging current. Responsive to the first and the second charging currents, the output voltage of the battery device presents a first output voltage and a second output voltage. The compensation-adjusting unit pre-estimates a parasitic resistance of the battery device by detecting the first and the second output voltage, thus compensating the first reference voltage.
    • 提供一种包括调节器,控制器和用于对电池装置进行精确充电的补偿调节单元的充电器。 调节器向电池装置提供充电电流。 控制器耦合到调节器以控制充电电流。 补偿调节单元耦合到调节器和电池装置,用于接收第一参考电压。 在第一操作模式中,补偿调整单元将第一参考电压输出到调节器。 在第二操作模式中,控制器指示调节器暂时产生第一充电电流和第二充电电流。 响应于第一和第二充电电流,电池装置的输出电压呈现第一输出电压和第二输出电压。 补偿调整单元通过检测第一和第二输出电压来预测电池装置的寄生电阻,从而补偿第一参考电压。
    • 4. 发明授权
    • DC-DC converter and error amplifier thereof
    • DC-DC转换器及其误差放大器
    • US07253593B1
    • 2007-08-07
    • US11606926
    • 2006-12-01
    • Ke-Horng ChenLi-Ren HuangHong-Wei HuangSy-Yen Kuo
    • Ke-Horng ChenLi-Ren HuangHong-Wei HuangSy-Yen Kuo
    • G05F1/613
    • H02M3/158
    • A DC-DC converter includes an error amplifier that includes an operational transconductance amplifier (OTA), a compensation circuit, and a fast transient controller. The OTA includes a compensation resistor, a compensation capacitor of Cz, and a Miller circuit. The equalization capacitance generated by the compensation capacitor and the Miller circuit is (1+k) Cz. The Miller circuit includes three transistors operated in the triode region. The ratio of the current through the transistors is 1:mk:(1−m)k. The current through the compensation capacitor in a second mode is (1+mk) times that in a first mode. The fast transient controller switches the Miller circuit between the first and second modes according to a feedback voltage dependent on the output voltage of the DC-DC converter.
    • DC-DC转换器包括误差放大器,其包括运算跨导放大器(OTA),补偿电路和快速瞬变控制器。 OTA包括补偿电阻器,C SUB补偿电容器和Miller电路。 由补偿电容器和米勒电路产生的均衡电容为(1 + k)C z z。 米勒电路包括在三极管区域工作的三个晶体管。 电流通过晶体管的比例为1:mk:(1-m)k。 在第一模式中,通过补偿电容器的电流为(1 + mk)倍。 快速瞬态控制器根据取决于DC-DC转换器的输出电压的反馈电压在第一和第二模式之间切换米勒电路。
    • 5. 发明申请
    • DC-DC CONVERTER
    • DC-DC转换器
    • US20090039842A1
    • 2009-02-12
    • US12016617
    • 2008-01-18
    • Ke-Horng ChenSy-Yen KuoHong-Wei HuangRuei-Ming Gan
    • Ke-Horng ChenSy-Yen KuoHong-Wei HuangRuei-Ming Gan
    • G05F1/00
    • H02M3/1584H02M2001/0012
    • The invention provides DC-DC converters comprising a load sensor, a variable Power MOS, and a Power MOS width controlling and driving device. The Power MOS width controlling and driving device is coupled between the load sensor and the variable Power MOS. The variable Power MOS comprises a plurality of PMOS transistors coupled in parallel and a plurality of NMOS transistors coupled in parallel. After the load sensor detects the load current of the DC-DC converter, the Power MOS width controlling and driving device conducts the PMOS and NMOS transistors according to the sensed load current to control the total size of the conduction paths that couple a transformed DC voltage output terminal to a source of an original DC voltage or ground.
    • 本发明提供了包括负载传感器,可变功率MOS和功率MOS宽度控制和驱动装置的DC-DC转换器。 功率MOS宽度控制和驱动装置耦合在负载传感器和可变功率MOS之间。 可变功率MOS包括并联耦合的多个PMOS晶体管和并联耦合的多个NMOS晶体管。 负载传感器检测到DC-DC转换器的负载电流后,功率MOS宽度控制和驱动器件根据检测到的负载电流导通PMOS和NMOS晶体管,以控制耦合变换的直流电压的导通路径的总尺寸 输出端子连接到原始直流电压或地的源极。
    • 6. 发明申请
    • DC-DC CONVERTER
    • DC-DC转换器
    • US20080309302A1
    • 2008-12-18
    • US11965512
    • 2007-12-27
    • Ke-Horng ChenHong-Wei HuangSy-Yen KuoChi-Chen Chung
    • Ke-Horng ChenHong-Wei HuangSy-Yen KuoChi-Chen Chung
    • G05F1/00
    • H02M1/38H02M3/1588Y02B70/1466
    • The invention discloses DC-DC converters comprising an inductance, a pulse width modulator generating a pulse signal according to the voltage level of a transformed voltage output terminal, a load sensor sensing a load current, an adaptive enable signal generator generating a PMOS transistor enable signal and an NMOS transistor enable signal based on the pulse signal and the load current, and a power transistor set comprising at least one PMOS transistor and an NMOS transistor. The power transistor set is used in coupling the transformed voltage output terminal to an original DC voltage source or ground via the inductance. The conductance of the PMOS and NMOS transistors are controlled by the PMOS and NMOS transistor enable signals, respectively. The adaptive enable signal generator makes a first dead-time between the PMOS and NMOS transistor enable signals decreasing with increasing load current.
    • 本发明公开了一种DC-DC转换器,包括电感,根据变换电压输出端的电压电平产生脉冲信号的脉冲宽度调制器,感测负载电流的负载传感器,产生PMOS晶体管使能信号的自适应使能信号发生器 以及基于脉冲信号和负载电流的NMOS晶体管使能信号,以及包括至少一个PMOS晶体管和NMOS晶体管的功率晶体管组。 功率晶体管组用于通过电感将变压电压输出端子耦合到原始的直流电压源或接地。 PMOS和NMOS晶体管的电导分别由PMOS和NMOS晶体管使能信号控制。 自适应使能信号发生器使PMOS和NMOS晶体管使能信号之间的第一个死区时间随着负载电流的增加而减小。
    • 9. 发明授权
    • DC-DC converter
    • DC-DC转换器
    • US07741822B2
    • 2010-06-22
    • US12016617
    • 2008-01-18
    • Ke-Horng ChenSy-Yen KuoHong-Wei HuangRuei-Ming Gan
    • Ke-Horng ChenSy-Yen KuoHong-Wei HuangRuei-Ming Gan
    • G05F1/56
    • H02M3/1584H02M2001/0012
    • The invention provides DC-DC converters comprising a load sensor, a variable Power MOS, and a Power MOS width controlling and driving device. The Power MOS width controlling and driving device is coupled between the load sensor and the variable Power MOS. The variable Power MOS comprises a plurality of PMOS transistors coupled in parallel and a plurality of NMOS transistors coupled in parallel. After the load sensor detects the load current of the DC-DC converter, the Power MOS width controlling and driving device conducts the PMOS and NMOS transistors according to the sensed load current to control the total size of the conduction paths that couple a transformed DC voltage output terminal to a source of an original DC voltage or ground.
    • 本发明提供了包括负载传感器,可变功率MOS和功率MOS宽度控制和驱动装置的DC-DC转换器。 功率MOS宽度控制和驱动装置耦合在负载传感器和可变功率MOS之间。 可变功率MOS包括并联耦合的多个PMOS晶体管和并联耦合的多个NMOS晶体管。 负载传感器检测到DC-DC转换器的负载电流后,功率MOS宽度控制和驱动器件根据检测到的负载电流导通PMOS和NMOS晶体管,以控制耦合变换的直流电压的导通路径的总尺寸 输出端子连接到原始直流电压或地的源极。