公开(公告)号：US20160276924A1

公开(公告)日：2016-09-22

申请号：US14957269

申请日：2015-12-02

Applicant: STMicroelectronics S.R.L.

Inventor： Claudia Castelli

IPC: H02M1/42 ,  H02M3/335

CPC classification number: H02M1/42 ,  H02M1/4225 ,  H02M3/33515 ,  H02M2001/0009 ,  H02M2003/1586 ,  Y02B70/126

Abstract: A control device for a switching regulator, having two or more converter stages operating with interleaved operation, each comprising an inductive element and a switch element, generates command signals having a switching period for controlling switching of the switch elements and determining alternation of a storage phase of energy in the respective inductive element and a transfer phase of the stored energy onto an output element. The control device generates the command signals phase-offset by an appropriate fraction of the switching period to obtain interleaved operation. In particular, a synchronism stage generates a synchronism signal and a control stage generates the command signals for the converter stages timed by the same synchronism signal.

Abstract translation: 一种用于开关调节器的控制装置，具有两个或更多个具有交错操作的转换器级，每个转换器级均包括电感元件和开关元件，产生具有开关周期的指令信号，用于控制开关元件的切换并确定存储相位的交替 的能量，并将存储的能量转移到输出元件上。 控制装置通过适当的开关周期的分数来产生相位偏移的指令信号，以获得交错运算。 特别地，同步级产生同步信号，控制级产生由相同同步信号定时的转换器级的指令信号。

公开(公告)号：US10164521B2

公开(公告)日：2018-12-25

申请号：US14957269

申请日：2015-12-02

Applicant: STMicroelectronics S.R.L.

Inventor： Claudia Castelli

IPC: H02M1/42 ,  H02M3/335 ,  H02M1/00 ,  H02M3/158

Abstract: A control device for a switching regulator having two or more converter stages operating with interleaved operation, each converter stage including an inductive element and a switch element, generates command signals having a switching period for controlling switching of the switch elements, and determining alternation of a storage phase of energy in the respective inductive element and a transfer phase of the stored energy onto an output element. The control device generates the command signals phase-offset by an appropriate fraction of the switching period to obtain interleaved operation. In particular, a synchronism stage generates a synchronism signal and a control stage generates the command signals for the converter stages timed by the same synchronism signal.

公开(公告)号：US09413225B2

公开(公告)日：2016-08-09

申请号：US14549211

申请日：2014-11-20

Applicant: STMicroelectronics S.r.l.

Inventor： Claudia Castelli ,  Claudio Adragna

IPC: H02M1/42 ,  H02M1/00

CPC classification number: H02M1/4208 ,  H02M1/4225 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

Abstract: A method controls a power factor correction converter that includes a boost inductor and a switch. The method generates a sense signal representing a rectified AC input voltage or an inductor current through the boost inductor, turns on the switch in response to determining, based on the sense signal, a zero current condition through the boost inductor, turns off the switch after an on-time interval, generates a feedback signal based on an output voltage of the converter, and compares the feedback signal with a threshold. If the feedback signal is smaller than the threshold, the method generates a command signal, representing a phase domain including 0 and π, based on the feedback signal and the power threshold, and keeps the switch off when a phase of the input rectified AC voltage or of the inductor current is in the phase domain even if the zero current condition has been determined.

Abstract translation: 一种方法控制包括升压电感和开关的功率因数校正转换器。 该方法产生表示经过升压电感的整流AC输入电压或电感电流的感测信号，响应于基于感测信号确定通过升压电感器的零电流状态来导通开关，在开关之后关闭开关 导通时间间隔，基于转换器的输出电压产生反馈信号，并将反馈信号与阈值进行比较。 如果反馈信号小于阈值，则该方法基于反馈信号和功率阈值产生表示包括0和π的相位域的指令信号，并且当输入整流AC电压的相位保持关闭 或者电感电流处于相位域，即使已经确定了零电流状态。

公开(公告)号：US09502961B2

公开(公告)日：2016-11-22

申请号：US14734680

申请日：2015-06-09

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Claudia Castelli

IPC: G05F1/61 ,  H02M1/42 ,  H02M1/00

CPC classification number: H02M1/4208 ,  G05F1/61 ,  H02M1/4225 ,  H02M2001/0054 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A control circuit controls a switching power factor corrector based on switch off-time modulation by controlling the input electric charge during on-time. The circuit includes a charge current generator that generates charge current as a replica of a current sense signal amplified with a gain corresponding to the square of peak value of a rectified input voltage, a loop capacitor charged with the charge current during on-time intervals and discharged with a discharge current during off-time intervals, a discharge current generator that generates the discharge current proportional to a product of a comparison voltage and a difference between a regulated output voltage and the rectified input voltage, and a PWM modulator that senses a charge voltage of the loop capacitor, turns on the switch for an on-time duration in response to detecting that the charge voltage nullifies, and turns off the switch when the on-time duration has elapsed.

Abstract translation: 控制电路通过在接通时间期间控制输入电荷来控制基于开关关断时间调制的开关功率因数校正器。 该电路包括充电电流发生器，其产生作为电流感测信号的复制品的电流，该电流感测信号以对应于整流输入电压的峰值平方的放大倍数，在接通时间间隔期间充满充电电流的环路电容器，以及 在关断时间间隔内以放电电流放电，放电电流产生器，其产生与比较电压和调节输出电压与整流输入电压之间的差成比例的放电电流;以及PWM调制器，其感测电荷 回路电容器的电压响应于检测到充电电压无效而导通开关导通时间，并且在接通时间已经过去时关断开关。

公开(公告)号：US20160020692A1

公开(公告)日：2016-01-21

申请号：US14734680

申请日：2015-06-09

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Claudia Castelli

IPC: H02M1/42

CPC classification number: H02M1/4208 ,  G05F1/61 ,  H02M1/4225 ,  H02M2001/0054 ,  Y02B70/126 ,  Y02B70/1491

Abstract: A control circuit controls a switching power factor corrector based on switch off-time modulation by controlling the input electric charge during on-time. The circuit includes a charge current generator that generates charge current as a replica of a current sense signal amplified with a gain corresponding to the square of peak value of a rectified input voltage, a loop capacitor charged with the charge current during on-time intervals and discharged with a discharge current during off-time intervals, a discharge current generator that generates the discharge current proportional to a product of a comparison voltage and a difference between a regulated output voltage and the rectified input voltage, and a PWM modulator that senses a charge voltage of the loop capacitor, turns on the switch for an on-time duration in response to detecting that the charge voltage nullifies, and turns off the switch when the on-time duration has elapsed.

Abstract translation: 控制电路通过在接通时间期间控制输入电荷来控制基于开关关断时间调制的开关功率因数校正器。 该电路包括充电电流发生器，其产生作为电流感测信号的复制品的电流，该电流感测信号以对应于整流输入电压的峰值平方的放大倍数，在接通时间间隔期间充满充电电流的环路电容器，以及 在关断时间间隔内以放电电流放电，放电电流产生器，其产生与比较电压和调节输出电压与整流输入电压之间的差成比例的放电电流;以及PWM调制器，其感测电荷 回路电容器的电压响应于检测到充电电压无效而导通开关导通时间，并且在接通时间已经过去时关断开关。

公开(公告)号：US20150155776A1

公开(公告)日：2015-06-04

申请号：US14549211

申请日：2014-11-20

Applicant: STMicroelectronics S.r.l.

Inventor： Claudia Castelli ,  Claudio Adragna

IPC: H02M1/42

CPC classification number: H02M1/4208 ,  H02M1/4225 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

Abstract: A method controls a power factor correction converter that includes a boost inductor and a switch. The method generates a sense signal representing a rectified AC input voltage or an inductor current through the boost inductor, turns on the switch in response to determining, based on the sense signal, a zero current condition through the boost inductor, turns off the switch after an on-time interval, generates a feedback signal based on an output voltage of the converter, and compares the feedback signal with a threshold. If the feedback signal is smaller than the threshold, the method generates a command signal, representing a phase domain including 0 and π, based on the feedback signal and the power threshold, and keeps the switch off when a phase of the input rectified AC voltage or of the inductor current is in the phase domain even if the zero current condition has been determined.

Abstract translation: 一种方法控制包括升压电感和开关的功率因数校正转换器。 该方法产生表示经过升压电感的整流AC输入电压或电感电流的感测信号，响应于基于感测信号确定通过升压电感器的零电流状态来导通开关，在开关之后关闭开关 导通时间间隔，基于转换器的输出电压产生反馈信号，并将反馈信号与阈值进行比较。 如果反馈信号小于阈值，则该方法基于反馈信号和功率阈值生成表示包括0和＆lt; pgr的相位域的指令信号，并且当输入整流AC的相位保持关闭 即使已经确定零电流条件，电压或电感电流也处于相位域。