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    • 2. 发明申请
    • VOLTAGE CONVERTER
    • 电压转换器
    • US20090180303A1
    • 2009-07-16
    • US12133392
    • 2008-06-05
    • YI-SHENG LIU
    • YI-SHENG LIU
    • H02M3/335
    • H02M3/1588H02M1/08Y02B70/1466
    • An exemplary voltage converter includes a pulse width modulation controller chip, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, a first gate driver, a second gate driver, a current source, a first resistor, a first comparator, and a power-on reset circuit. The plurality of pins include a Vcc pin connected to a chip power supply, a BOOT pin connected to the Vcc pin via a first zener diode for receiving power from the chip power supply, a PHASE pin connected to the BOOT pin via a capacitor, a UGATE pin, a LGATE pin, and a GND pin that is grounded. The PHASE pin serves as a multi-function pin in the pulse width modulation controller chip.
    • 示例性的电压转换器包括脉宽调制控制器芯片,上拉晶体管,下拉晶体管和低通滤波器。 脉冲宽度调制控制器芯片包括多个引脚,门控逻辑电路,第一栅极驱动器,第二栅极驱动器,电流源,第一电阻器,第一比较器和上电复位电路。 多个引脚包括连接到芯片电源的Vcc引脚,通过用于从芯片电源接收功率的第一齐纳二极管连接到Vcc引脚的引导引脚,经由电容器连接到引脚的PHASE引脚, UGATE引脚,LGATE引脚和接地的GND引脚。 PHASE引脚用作脉宽调制控制器芯片中的多功能引脚。
    • 3. 发明申请
    • VOLTAGE CONVERTER
    • 电压转换器
    • US20090179625A1
    • 2009-07-16
    • US12168900
    • 2008-07-08
    • YI-SHENG LIU
    • YI-SHENG LIU
    • G05F1/00
    • H02M3/1588Y02B70/1466
    • An exemplary voltage converter includes a pulse width modulation controller chip, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a power management circuit, a gate control logic circuit, a first gate driver, a second gate driver, a current source, a first resistor, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a GND pin. The PHASE pin serves as a multi-function pin in the pulse width modulation controller chip. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load efficiency improvement circuit.
    • 示例性的电压转换器包括脉宽调制控制器芯片,上拉晶体管,下拉晶体管和低通滤波器。 脉宽调制控制器芯片包括多个引脚,功率管理电路,门控逻辑电路,第一栅极驱动器,第二栅极驱动器,电流源,第一电阻器,电感器电流传感器,计数器和电流 步进发生器和振荡器。 多个引脚包括Vcc引脚,引脚引脚,PHASE引脚,UGATE引脚,LGATE引脚和GND引脚。 PHASE引脚用作脉宽调制控制器芯片中的多功能引脚。 电流源,第一电阻,电感电流传感器,计数器和电流阶跃发生器,振荡器和下拉晶体管构成轻负载效率改善电路。
    • 4. 发明申请
    • VOLTAGE CONVERTER
    • 电压转换器
    • US20090167273A1
    • 2009-07-02
    • US12147504
    • 2008-06-27
    • YI-SHENG LIU
    • YI-SHENG LIU
    • G05F1/00
    • H02M3/1588Y02B70/1466
    • An exemplary voltage converter includes a pulse width modulation controller chip, an enabling transistor, a first resistor, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, an enabling comparator, a first gate driver, a second gate driver, a current source, a first comparator, a power-on reset circuit, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a pin OCSET. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load efficiency improvement circuit.
    • 示例性电压转换器包括脉宽调制控制器芯片,使能晶体管,第一电阻器,上拉晶体管,下拉晶体管和低通滤波器。 脉宽调制控制器芯片包括多个引脚,门控逻辑电路,使能比较器,第一栅极驱动器,第二栅极驱动器,电流源,第一比较器,上电复位电路,电感电流 传感器,计数器和电流阶跃发生器以及振荡器。 多个引脚包括Vcc引脚,引脚引脚,PHASE引脚,UGATE引脚,LGATE引脚和引脚OCSET。 电流源,第一电阻,电感电流传感器,计数器和电流阶跃发生器,振荡器和下拉晶体管构成轻负载效率改善电路。
    • 6. 发明授权
    • Voltage converter
    • 电压转换器
    • US07884590B2
    • 2011-02-08
    • US12168900
    • 2008-07-08
    • Yi-Sheng Liu
    • Yi-Sheng Liu
    • G05F1/40
    • H02M3/1588Y02B70/1466
    • An exemplary voltage converter includes a pulse width modulation controller chip, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a power management circuit, a gate control logic circuit, a first gate driver, a second gate driver, a current source, a first resistor, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a GND pin. The PHASE pin serves as a multi-function pin in the pulse width modulation controller chip. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load efficiency improvement circuit.
    • 示例性的电压转换器包括脉宽调制控制器芯片,上拉晶体管,下拉晶体管和低通滤波器。 脉宽调制控制器芯片包括多个引脚,功率管理电路,门控逻辑电路,第一栅极驱动器,第二栅极驱动器,电流源,第一电阻器,电感器电流传感器,计数器和电流 步进发生器和振荡器。 多个引脚包括Vcc引脚,引脚引脚,PHASE引脚,UGATE引脚,LGATE引脚和GND引脚。 PHASE引脚用作脉宽调制控制器芯片中的多功能引脚。 电流源,第一电阻,电感电流传感器,计数器和电流阶跃发生器,振荡器和下拉晶体管构成轻负载效率改善电路。
    • 7. 发明授权
    • Voltage converter
    • 电压转换器
    • US07791327B2
    • 2010-09-07
    • US12147504
    • 2008-06-27
    • Yi-Sheng Liu
    • Yi-Sheng Liu
    • G05F1/575G05F1/618
    • H02M3/1588Y02B70/1466
    • A voltage converter includes a pulse width modulation controller chip, an enabling transistor, a first resistor, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, an enabling comparator, a first gate driver, a second gate driver, a current source, a first comparator, a power-on reset circuit, an inductor current sensor, a counter and current step generator, and an oscillator. The plurality of pins include a Vcc pin, a BOOT pin, a PHASE pin, a UGATE pin, a LGATE pin, and a pin OCSET. The current source, the first resistor, the inductor current sensor, the counter and current step generator, the oscillator, and the pull-down transistor constitute a light-load circuit.
    • 电压转换器包括脉冲宽度调制控制器芯片,使能晶体管,第一电阻器,上拉晶体管,下拉晶体管和低通滤波器。 脉宽调制控制器芯片包括多个引脚,门控逻辑电路,使能比较器,第一栅极驱动器,第二栅极驱动器,电流源,第一比较器,上电复位电路,电感电流 传感器,计数器和电流阶跃发生器以及振荡器。 多个引脚包括Vcc引脚,引脚引脚,PHASE引脚,UGATE引脚,LGATE引脚和引脚OCSET。 电流源,第一电阻,电感电流传感器,计数器和电流阶跃发生器,振荡器和下拉晶体管构成轻负载电路。
    • 9. 发明授权
    • Voltage converter
    • 电压转换器
    • US07629778B2
    • 2009-12-08
    • US12133392
    • 2008-06-05
    • Yi-Sheng Liu
    • Yi-Sheng Liu
    • G05F1/00G05F1/12
    • H02M3/1588H02M1/08Y02B70/1466
    • An exemplary voltage converter includes a pulse width modulation controller chip, a pull-up transistor, a pull-down transistor, and a low pass filter. The pulse width modulation controller chip includes a plurality of pins, a gate control logic circuit, a first gate driver, a second gate driver, a current source, a first resistor, a first comparator, and a power-on reset circuit. The plurality of pins include a Vcc pin connected to a chip power supply, a BOOT pin connected to the Vcc pin via a first zener diode for receiving power from the chip power supply, a PHASE pin connected to the BOOT pin via a capacitor, a UGATE pin, a LGATE pin, and a GND pin that is grounded. The PHASE pin serves as a multi-function pin in the pulse width modulation controller chip.
    • 示例性的电压转换器包括脉宽调制控制器芯片,上拉晶体管,下拉晶体管和低通滤波器。 脉冲宽度调制控制器芯片包括多个引脚,门控逻辑电路,第一栅极驱动器,第二栅极驱动器,电流源,第一电阻器,第一比较器和上电复位电路。 多个引脚包括连接到芯片电源的Vcc引脚,通过用于从芯片电源接收功率的第一齐纳二极管连接到Vcc引脚的引导引脚,经由电容器连接到引脚的PHASE引脚, UGATE引脚,LGATE引脚和接地的GND引脚。 PHASE引脚用作脉宽调制控制器芯片中的多功能引脚。