公开(公告)号：WO2006116548A3

公开(公告)日：2006-12-14

申请号：PCT/US2006015921

申请日：2006-04-27

Applicant: INT RECTIFIER CORP ,  LI YONG

Inventor： LI YONG

IPC: G05F1/10 ,  G05F1/40

CPC classification number: G05F1/565 ,  H02M1/42 ,  H02M3/157 ,  Y02B70/12

Abstract: A circuit for providing power factor correction includes a boost converter circuit (L, Q1, BD) and a control circuit receiving as inputs a rectified AC input voltage from a rectifier (BR), a signal proportional to current through the boost inductor and the DC bus voltage across the capacitor of tile boost converter. The control circuit provides a pulse width modulated signal to control the on time of a PFC switch. The control circuit further includes a voltage regulator and a current regulator. The current regulator includes a difference device operable to subtract a signal proportional to the inductor current from the current reference signal, a PI controller adapted to receive the output of the difference device and provide a first control signal, a feed forward device operable to receive the rectified AC input voltage and to provide a second control signal with a smaller dynamic range than the AC input voltage, and an adder operable to add the first control signal to the second control signal to provide a PWM reference signal for generating the pulse width modulated signal. A zero crossing detector and vector rotator may be provided to provide a clean sinusoidal reference to the current regulator. A partial PFC regulator may be provide to provide partial mode PFC if desired.

Abstract translation: 用于提供功率因数校正的电路包括升压转换器电路（L，Q1，BD）和控制电路，其接收来自整流器（BR）的整流的AC输入电压作为输入，与通过升压电感器的电流成比例的信号和DC 瓦片升压转换器电容器两端的总线电压。 控制电路提供脉宽调制信号来控制PFC开关的导通时间。 控制电路还包括电压调节器和电流调节器。 电流调节器包括差分器件，其可操作以从电流参考信号中减去与电感器电流成比例的信号; PI控制器，适于接收差分器件的输出并提供第一控制信号;前馈器件，可操作以接收 整流的AC输入电压，并且提供具有比AC输入电压更小的动态范围的第二控制信号，以及加法器，用于将第一控制信号加到第二控制信号上，以提供用于产生脉宽调制信号的PWM参考信号 。 可以提供零交叉检测器和矢量旋转器以向电流调节器提供干净的正弦参考。 如果需要，可以提供部分PFC调节器来提供部分模式PFC。

公开(公告)号：WO2006004641A3

公开(公告)日：2006-06-08

申请号：PCT/US2005022689

申请日：2005-06-28

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO ,  LI YONG

Inventor： TAKAHASHI TOSHIO ,  LI YONG

IPC: G05F1/40 ,  H02M1/42

CPC classification number: H02M1/4225 ,  Y02B70/126

Abstract: A circuit for providing power factor correction comprising a boost converter circuit having a boost inductance and a power factor correction switch coupled in series with the boost inductance, the boost inductance and power factor correction switch being coupled across the output of a rectifier being supplied with AC power from an AC line, the boost converter circuit further comprising a boost diode coupled to a junction between the inductor and the switch, an output of the boost diode coupled to an output capacitor, a DC bus voltage being provided across the output capacitor, further comprising a control circuit receiving as inputs a rectified AC input voltage from the rectifier, a signal proportional to current through the inductor and the DC bus voltage across the capacitor, and wherein the control circuit provides a pulse width modulated signal to control the on time of the PFC switch, further comprising an enable/disable circuit receiving as inputs the rectified AC input voltage and the DC bus voltage, the circuit instantaneously comparing the rectified AC input voltage and the DC bus voltage and controlling the control circuit whereby the control circuit provides the pulse width modulated signal to control the PFC switch when the rectified AC input voltage is less than the DC bus voltage and disables the generation of the pulse width modulated signal to the PFC switch when the rectified AC input voltage is greater than DC bus voltage.

Abstract translation: 一种用于提供功率因数校正的电路，其包括具有升压电感的升压转换器电路和与升压电感串联耦合的功率因数校正开关，升压电感和功率因数校正开关耦合在提供有AC的整流器的输出端 所述升压转换器电路进一步包括耦合到所述电感器和所述开关之间的接点的升压二极管，所述升压二极管的输出耦合到输出电容器，在所述输出电容器两端提供DC总线电压，进一步包括： 包括控制电路，该控制电路接收来自整流器的经整流的AC输入电压作为输入，与通过电感器的电流和电容器两端的DC总线电压成比例的信号，并且其中控制电路提供脉宽调制信号以控制 所述PFC开关还包括启用/禁用电路，所述启用/禁用电路接收经整流的AC输入电压a作为输入 以及直流总线电压，该电路瞬时比较整流后的交流输入电压和直流总线电压并控制控制电路，由此当整流的交流输入电压小于时，控制电路提供脉冲宽度调制信号以控制PFC开关 DC总线电压，并且当整流的AC输入电压大于DC总线电压时禁止向PFC开关产生脉宽调制信号。

公开(公告)号：WO2006052794A3

公开(公告)日：2007-02-22

申请号：PCT/US2005040113

申请日：2005-11-07

Applicant: INT RECTIFIER CORP ,  LI YONG

Inventor： LI YONG

IPC: G05F1/70

CPC classification number: G05F1/70

Abstract: A circuit for providing power factor correction includes a bridgeless boost converter circuit and a control circuit receiving an input AC line voltage of the bridgeless boost converter circuit, wherein the control circuit provides a pulse width modulated signal to control the on time of a PFC switch of the bridgeless boost converter circuit. The control circuit also includes a scaling device operable to scale down a bi-polar AC voltage of the input AC line voltage to a uni-polar AC voltage, an analog to digital converter operable to convert the uni-polar AC voltage into digital data and a digital rectifier operable to process the digital data of the uni-polar AC voltage to provide a half-sinusoidal AC signal that is proportional to and in phase with the input AC line voltage for use in providing the pulse width modulated signal.

Abstract translation: 用于提供功率因数校正的电路包括无桥升压转换器电路和接收无桥升压转换器电路的输入AC线电压的控制电路，其中控制电路提供脉宽调制信号以控制PFC开关的导通时间 无桥升压转换电路。 控制电路还包括可操作以将输入AC线电压的双极交流电压降压到单极AC电压的缩放装置，可操作以将单极AC电压转换为数字数据的模数转换器， 数字整流器，其可操作以处理单极AC电压的数字数据，以提供与用于提供脉宽调制信号的输入AC线电压成比例并与其成相位的半正弦AC信号。

公开(公告)号：WO2006068714B1

公开(公告)日：2006-08-17

申请号：PCT/US2005040321

申请日：2005-11-08

Applicant: INT RECTIFIER CORP ,  TAKAHASHI TOSHIO ,  LI YONG

Inventor： TAKAHASHI TOSHIO ,  LI YONG

IPC: G05F1/40

CPC classification number: G05F1/70 ,  H02M1/4225 ,  Y02B70/126

Abstract: A circuit for providing power factor correction includes a boost converter circuit with a boost inductance and a power factor correction switch and a control circuit. The control circuit provides a pulse width modulated signal to control the on time of a PFC switch, and also includes a power factor correction pulse width modulated device receiving as inputs a rectified AC input voltage, a DC bus voltage, a signal proportional to the current through the inductor and a reference current signal. The power factor correction pulse width modulated device also includes a pulse width modulated generator operable to provide the pulse width modulated signal to control the on time of the PFC circuit and a pulse width modulated blanking device operable to provide an enable/disable signal to disable the pulse width modulated generator when predetermined conditions are met.

Abstract translation: 用于提供功率因数校正的电路包括具有升压电感的升压转换器电路和功率因数校正开关以及控制电路。 控制电路提供脉宽调制信号来控制PFC开关的接通时间，并且还包括功率因数校正脉冲宽度调制装置，其接收整流的AC输入电压，DC总线电压，与电流成正比的信号 通过电感和参考电流信号。 功率因数校正脉宽调制装置还包括脉冲宽度调制发生器，其可操作以提供脉宽调制信号以控制PFC电路的导通时间，以及脉宽调制消隐装置，其可操作以提供使能/禁用信号以禁用 当满足预定条件时，脉宽调制发生器。

公开(公告)号：EP1774421A4

公开(公告)日：2009-01-21

申请号：EP05789940

申请日：2005-06-28

Applicant: INT RECTIFIER CORP

Inventor： TAKAHASHI TOSHIO ,  LI YONG

IPC: G05F1/40 ,  G05F1/70 ,  H02M1/42

CPC classification number: H02M1/4225 ,  Y02B70/126

Abstract: A circuit for providing power factor correction comprising a boost converter circuit having a boost inductance and a power factor correction switch coupled in series with the boost inductance, the boost inductance and power factor correction switch being coupled across the output of a rectifier being supplied with AC power from an AC line, the boost converter circuit further comprising a boost diode coupled to a junction between the inductor and the switch, an output of the boost diode coupled to an output capacitor, a DC bus voltage being provided across the output capacitor, further comprising a control circuit receiving as inputs a rectified AC input voltage from the rectifier, a signal proportional to current through the inductor and the DC bus voltage across the capacitor, and wherein the control circuit provides a pulse width modulated signal to control the on time of the PFC switch, further comprising an enable/disable circuit receiving as inputs the rectified AC input voltage and the DC bus voltage, the circuit instantaneously comparing the rectified AC input voltage and the DC bus voltage and controlling the control circuit whereby the control circuit provides the pulse width modulated signal to control the PFC switch when the rectified AC input voltage is less than the DC bus voltage and disables the generation of the pulse width modulated signal to the PFC switch when the rectified AC input voltage is greater than DC bus voltage.