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    • 1. 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。
    • 2. 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
    • US08923019B2
    • 2014-12-30
    • US13427386
    • 2012-03-22
    • 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, wherein 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 driving pulses. The resonant tank provides a first voltage based on the driving pulses for the output circuit. 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 the rectangular wave generator in a hiccup mode to reduce a ratio of a work period to a stop period, or makes that number of the driving pulses within the current work period is less than the number of the driving pulses when a duty ratio is 50%.
    • 公开了一种DC / DC转换器,电力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为驱动脉冲。 谐振槽基于用于输出电路的驱动脉冲提供第一电压。 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无负载时,控制单元以打嗝模式控制矩形波发生器,以减少工作周期与停止时间的比率,或者使该数量的驱动脉冲 在占空比为50%的情况下,在当前工作周期内小于驱动脉冲的数量。
    • 3. 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。
    • 4. 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。
    • 5. 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
    • US20120250356A1
    • 2012-10-04
    • US13427386
    • 2012-03-22
    • Pei-Qing HuHong-Yuan JinHong-Jian GanJian-Ping Ying
    • Pei-Qing HuHong-Yuan JinHong-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, wherein 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 driving pulses. The resonant tank provides a first voltage based on the driving pulses for the output circuit. 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 the rectangular wave generator in a hiccup mode to reduce a ratio of a work period to a stop period, or makes that number of the driving pulses within the current work period is less than the number of the driving pulses when a duty ratio is 50%.
    • 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转换器包括输出电路,矩形波发生器,谐振槽,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为驱动脉冲。 谐振槽基于用于输出电路的驱动脉冲提供第一电压。 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无负载时,控制单元以打嗝模式控制矩形波发生器,以减少工作周期与停止时间的比率,或者使该数量的驱动脉冲 在占空比为50%的情况下,在当前工作周期内小于驱动脉冲的数量。
    • 7. 发明授权
    • Power factor correction circuit
    • 功率因数校正电路
    • US09001537B2
    • 2015-04-07
    • US13523615
    • 2012-06-14
    • Hong-Yuan JinYan ChenHong-Jian GanJian-Ping Ying
    • Hong-Yuan JinYan ChenHong-Jian GanJian-Ping Ying
    • H02H7/125H02M1/42H02M1/00H02M7/219
    • H02M1/4233H02M2001/0048H02M2007/2195Y02B70/126Y02B70/1408Y02B70/1491
    • A power factor correction (PFC) circuit includes an AC power, a first bridge arm and a second bridge arm. The first bridge arm includes first and second switches connected in series with each other. A second terminal of the first switch is connected to a first terminal of the second switch, and coupled to a first end of the AC power via a first inductor. The second bridge arm includes third and fourth switches connected in series with each other. A second terminal of the third switch is connected to a first terminal of the fourth switch and a second end of the AC power. The third and fourth switches operate in ON/OFF states by use of a control signal having an operation frequency consistent with that of the AC power. The on-state resistance of the third and fourth switches is lower than that of the first or second switch.
    • 功率因数校正(PFC)电路包括AC电力,第一桥臂和第二桥臂。 第一桥臂包括彼此串联连接的第一和第二开关。 第一开关的第二端子连接到第二开关的第一端子,并且经由第一电感器耦合到AC电力的第一端。 第二桥臂包括彼此串联连接的第三和第四开关。 第三开关的第二端子连接到第四开关的第一端子和交流电源的第二端。 第三和第四开关通过使用具有与AC电力的操作频率一致的操作频率的控制信号来操作ON / OFF状态。 第三和第四开关的导通电阻低于第一或第二开关的导通电阻。
    • 8. 发明申请
    • POWER FACTOR CORRECTION CIRCUIT
    • 功率因数校正电路
    • US20130257390A1
    • 2013-10-03
    • US13523615
    • 2012-06-14
    • Hong-Yuan JinYan ChenHong-Jian GanJian-Ping Ying
    • Hong-Yuan JinYan ChenHong-Jian GanJian-Ping Ying
    • G05F1/70
    • H02M1/4233H02M2001/0048H02M2007/2195Y02B70/126Y02B70/1408Y02B70/1491
    • A power factor correction (PFC) circuit includes an AC power, a first bridge arm and a second bridge arm. The first bridge arm includes first and second switches connected in series with each other. A second terminal of the first switch is connected to a first terminal of the second switch, and coupled to a first end of the AC power via a first inductor. The second bridge arm includes third and fourth switches connected in series with each other. A second terminal of the third switch is connected to a first terminal of the fourth switch and a second end of the AC power. The third and fourth switches operate in ON/OFF states by use of a control signal having an operation frequency consistent with that of the AC power. The on-state resistance of the third and fourth switches is lower than that of the first or second switch.
    • 功率因数校正(PFC)电路包括AC电力,第一桥臂和第二桥臂。 第一桥臂包括彼此串联连接的第一和第二开关。 第一开关的第二端子连接到第二开关的第一端子,并且经由第一电感器耦合到AC电力的第一端。 第二桥臂包括彼此串联连接的第三和第四开关。 第三开关的第二端子连接到第四开关的第一端子和交流电源的第二端。 第三和第四开关通过使用具有与AC电力的操作频率一致的操作频率的控制信号来操作ON / OFF状态。 第三和第四开关的导通电阻低于第一或第二开关的导通电阻。