公开(公告)号：WO2008018094A1

公开(公告)日：2008-02-14

申请号：PCT/IT2006/000606

申请日：2006-08-07

Applicant: STMICROELECTRONICS S.R.L. ,  FAGNANI Mauro ,  BARTOLO Vincenzo ,  ADRAGNA Claudio

Inventor： FAGNANI Mauro ,  BARTOLO Vincenzo ,  ADRAGNA Claudio

IPC: G05F1/70 ,  H02M1/00

CPC classification number: G05F1/70

Abstract: Herein described is a control device of a device for the correction of the power factor in forced switching power supplies; said device for the correction of the power factor comprises a converter (20) and said control device (1) is coupled to the converter to obtain from an alternating input line voltage (Vin) a regulated output voltage (Vout) . The control device (1) comprises generating means (421-423) associated to a capacitor (Cf f) for generating a signal (Vff) representative of the root-mean- square value of the alternating line voltage; the generating means (421-424) are associated to means for discharging (Rf f) said capacitor. The control device comprises further means for discharging (Ml, COMPl, Cl; Ml 6, COMPI 1, CI 1; M50, COMP22, C0MP33, Cint) the capacitor (Cf f) suitable for discharging said capacitor when the signal (Vff) representative of the root-mean- square value of the alternating line voltage goes below a given value (VCl, VCI 1, Vint) .

Abstract translation: 这里描述了用于校正强制开关电源中的功率因数的装置的控制装置; 所述用于校正功率因数的装置包括转换器（20），并且所述控制装置（1）耦合到转换器以从交流输入线电压（Vin）获得调节输出电压（Vout）。 控制装置（1）包括与电容器（Cf f）相关联的产生装置（421-423），用于产生表示交流线路电压的均方根值的信号（Vff）; 发生装置（421-424）与用于放电（Rf f）所述电容器的装置相关联。 当信号（Vff）代表时，控制装置还包括用于放电（M1，COMP1，C1; M116，COMP1,1C1; M50，COMP22，C0MP33，Cint）适合于放电所述电容器的电容器（Cf f） 的交流线电压的均方根值低于给定值（VCl，VCI 1，Vint）。

公开(公告)号：WO2008018095A1

公开(公告)日：2008-02-14

申请号：PCT/IT2006/000607

申请日：2006-08-07

Applicant: STMicroelectronics s.r.l. ,  ADRAGNA Claudio

Inventor： ADRAGNA Claudio

IPC: G05F1/70 ,  H02M1/00

CPC classification number: G05F1/70

Abstract: A control device for a power factor correction device in forced switching power supplies is disclosed; the device for correcting the power factor comprises a converter (20) and said control device (1) is coupled with the converter to obtain from an input alternating line voltage (Vin) a regulated output voltage (Vout). The converter (20) comprises a power transistor (M) and the control device (1) comprises a driving circuit (3, 4, 6, 10) of said power transistor; the driving circuit comprises a timer (130) suitable for setting the switch-off period of said power transistor (M). The timer is coupled with the alternating line voltage (Vin) in input to the converter and is suitable for determining the switch-off period of the power transistor in function of the value of the alternating line voltage (Vin) in input to the converter.

Abstract translation: 公开了一种用于强制开关电源中的功率因数校正装置的控制装置; 用于校正功率因数的装置包括转换器（20），并且所述控制装置（1）与转换器耦合以从输入交流线电压（Vin）获得调节输出电压（Vout）。 所述转换器（20）包括功率晶体管（M），所述控制装置（1）包括所述功率晶体管的驱动电路（3,4,6,10） 所述驱动电路包括适于设置所述功率晶体管（M）的关断周期的定时器（130）。 定时器与输入到转换器的交流线路电压（Vin）耦合，适用于根据输入到转换器的交流线路电压（Vin）的值来确定功率晶体管的关断周期。