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    • 6. 发明授权
    • DC/DC converter, power converter and control method thereof
    • DC / DC转换器,功率转换器及其控制方法
    • US09236807B2
    • 2016-01-12
    • US13427450
    • 2012-03-22
    • Hong-Yuan JinPei-Qing HuHong-Jian GanJian-Ping Ying
    • Hong-Yuan JinPei-Qing HuHong-Jian GanJian-Ping Ying
    • H02M3/335H02M1/00
    • H02M3/33569H02M2001/0035H02M2001/0058Y02B70/1433Y02B70/1491Y02B70/16
    • A DC/DC converter, a power converter and a control method thereof are disclosed, where the DC/DC converter includes an output circuit, a rectangular wave generator, a resonant tank, a detection unit and a control unit. The output circuit has a load. The rectangular wave generator converts an input voltage into at least one rectangular wave. The resonant tank provides a first voltage based on the rectangular wave for the output circuit. The detection unit detects a signal related to a state of the load. When the state of the load is light-load or a no-load, the control unit controls a working frequency or a duty ratio of the rectangular wave, so that the duty ratio of the rectangular wave is within a predetermined range, in which a voltage gain of the DC/DC converter is greater than another voltage gain under the condition of 50% duty ratio.
    • 公开了DC / DC转换器,功率转换器及其控制方法,其中DC / DC转换器包括输出电路,矩形波发生器,谐振回路,检测单元和控制单元。 输出电路有负载。 矩形波发生器将输入电压转换成至少一个矩形波。 谐振槽为输出电路提供基于矩形波的第一电压。 检测单元检测与负载状态有关的信号。 当负载状态为轻负载或空载时,控制单元控制矩形波的工作频率或占空比,使得矩形波的占空比在预定范围内,其中 在50%占空比的条件下,DC / DC转换器的电压增益大于另一个电压增益。
    • 8. 发明申请
    • DC/DC CONVERTER, POWER CONVERTER AND CONTROL METHOD THEREOF
    • DC / DC转换器,电源转换器及其控制方法
    • US20120250358A1
    • 2012-10-04
    • US13427450
    • 2012-03-22
    • Hong-Yuan JinPei-Qing HuHong-Jian GanJian-Ping Ying
    • Hong-Yuan JinPei-Qing HuHong-Jian GanJian-Ping Ying
    • H02M3/335
    • H02M3/33569H02M2001/0035H02M2001/0058Y02B70/1433Y02B70/1491Y02B70/16
    • A DC/DC converter, a power converter and a control method thereof are disclosed, where the DC/DC converter includes an output circuit, a rectangular wave generator, a resonant tank, a detection unit and a control unit. The output circuit has a load. The rectangular wave generator converts an input voltage into at least one rectangular wave. The resonant tank provides a first voltage based on the rectangular wave for the output circuit. The detection unit detects a signal related to a state of the load. When the state of the load is light-load or a no-load, the control unit controls a working frequency or a duty ratio of the rectangular wave, so that the duty ratio of the rectangular wave is within a predetermined range, in which a voltage gain of the DC/DC converter is greater than another voltage gain under the condition of 50% duty ratio.
    • 公开了DC / DC转换器,功率转换器及其控制方法,其中DC / DC转换器包括输出电路,矩形波发生器,谐振回路,检测单元和控制单元。 输出电路有负载。 矩形波发生器将输入电压转换成至少一个矩形波。 谐振槽为输出电路提供基于矩形波的第一电压。 检测单元检测与负载状态有关的信号。 当负载状态为轻负载或空载时,控制单元控制矩形波的工作频率或占空比,使得矩形波的占空比在预定范围内,其中 在50%占空比的条件下,DC / DC转换器的电压增益大于另一个电压增益。
    • 9. 发明授权
    • DC/DC converter, power converter and control method thereof
    • DC / DC转换器,功率转换器及其控制方法
    • US08923018B2
    • 2014-12-30
    • US13424387
    • 2012-03-20
    • Pei-Qing HuHong-Yuan JinHong-Jian GanJian-Ping Ying
    • Pei-Qing HuHong-Yuan JinHong-Jian GanJian-Ping Ying
    • H02M3/335H02M1/00
    • H02M3/33569H02M2001/0035H02M2001/0058Y02B70/1433Y02B70/1491Y02B70/16
    • A DC/DC converter, a power converter and a control method thereof are disclosed, where the DC/DC converter includes an output circuit having a load, a rectangular wave generator having a bridge arm, a resonant tank, a detection unit and a control unit. The bridge arm includes a first and a second switches connected each other. The detection unit detects a signal related to a state of the load. When the state of the load is a light-load or a no-load, the control unit controls ON/OFF state of the first and second switches by pulse width modulation mode to convert an input voltage into at least one rectangular wave for the resonant tank. A duty ratio of the first switch is within a first or second predetermined range, and a duty ratio of the second switch is complementary to the duty ratio of the first switch, whereby a voltage gain of the DC/DC converter is greater than 1.
    • 公开了一种DC / DC转换器,功率转换器及其控制方法,其中DC / DC转换器包括具有负载的输出电路,具有桥臂的矩形波发生器,谐振槽,检测单元和控制 单元。 桥臂包括彼此连接的第一和第二开关。 检测单元检测与负载状态有关的信号。 当负载状态为轻负载或无负载时,控制单元通过脉宽调制模式控制第一和第二开关的接通/断开状态,以将输入电压转换为至少一个矩形波,用于谐振 坦克。 第一开关的占空比在第一或第二预定范围内,第二开关的占空比与第一开关的占空比互补,由此DC / DC转换器的电压增益大于1。