公开(公告)号：WO2004010569A8

公开(公告)日：2005-07-21

申请号：PCT/IT0200478

申请日：2002-07-19

Applicant: ST MICROELECTRONICS SRL ,  FAGNANI MAURO ,  PIDUTTI ALBINO ,  ADRAGNA CLAUDIO

Inventor： FAGNANI MAURO ,  PIDUTTI ALBINO ,  ADRAGNA CLAUDIO

IPC: H02M1/00 ,  H02M1/36 ,  H02M3/335

CPC classification number: H02M1/36 ,  H02M3/335 ,  H02M2001/0006

Abstract: The present invention refers to a starting circuit for switching power supplies (SMPS), to a switching power supply comprising a starting circuit )and an integrated circuit of a switching power supply. In an embodiment thereof the starting circuit (13) for switching power supplies having a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third tenninal (30); said starting circuit comprises: a first current path between said first terminal and said third terminal (30); a second current path between said first tenninal and said second terminal; a third current path between said second terminal and said third terminal (30); a two-way voltage regulator (M3, Dz2, R5, R6) placed along said second current path.

Abstract translation: 本发明涉及用于切换电源（SMPS）的起动电路，包括起动电路的开关电源）和开关电源的集成电路。 在其实施例中，用于切换来自第一端子的第一电源电压（Vin）和来自第二端子和第三端子（30）的第二电源电压（Vcc）的电源的启动电路（13）。 所述启动电路包括：在所述第一端子和所述第三端子之间的第一电流路径; 所述第一终端和所述第二终端之间的第二电流路径; 所述第二端子和所述第三端子之间的第三电流通路; 沿着所述第二电流路径放置的双向电压调节器（M3，Dz2，R5，R6）。

公开(公告)号：WO2004027965A1

公开(公告)日：2004-04-01

申请号：PCT/IT2002/000602

申请日：2002-09-20

Applicant: STMICROELECTRONICS S.R.L. ,  PIDUTTI, Albino ,  ADRAGNA, Claudio ,  FAGNANI, Mauro

Inventor： PIDUTTI, Albino ,  ADRAGNA, Claudio ,  FAGNANI, Mauro

IPC: H02M1/00

CPC classification number: H02M1/4225 ,  Y02B70/126

Abstract: A power factor correction device for switching power supplies is described, which comprises a converter (20) and a control device (100;200;300) coupled with said converter (20) in such a way as to obtain from a input network alternated voltage (Vin) a direct regulated voltage (Vout) at the output terminal. The converter (20) comprises a power transistor (M) and the control device (100;200;300) comprises an error amplifier (3) having in input at the inverting terminal a first signal (Vr) proportional to said regulated voltage (Vout) at at the non-inverting terminal a voltage reference (Vref), at least one capacitor (C) having a first terminal and a second terminal which are coupled respectively with the inverting terminal and the output terminal (31) of the error amplifier (3) and a driving circuit (4-6) of said power transistor (M) which is coupled with the second terminal of said capacitor (C). The control device (100;200;300) comprises interruption means (SW)placed between the output terminal (31) of said error amplifier (3) and said driving circuit (4-6) for at least one time period (T) lower than the time period (Tciclo) in which said control device (100; 200; 300) is operative.

Abstract translation: 描述了用于开关电源的功率因数校正装置，其包括与所述转换器（20）耦合的转换器（20）和控制装置（100; 200; 300），以便从输入网络获得交替电压 （Vin）在输出端子处的直接调节电压（Vout）。 所述转换器（20）包括功率晶体管（M），所述控制装置（100; 200; 300）包括误差放大器（3），所述误差放大器（3）在所述反相端子处具有与所述调节电压（Vout ）在非反相端子处具有电压基准（Vref），至少一个具有第一端子和第二端子的电容器（C），其分别与误差放大器的反相端子和输出端子（31）耦合 3）和与所述电容器（C）的第二端子耦合的所述功率晶体管（M）的驱动电路（4-6）。 控制装置（100; 200; 300）包括放置在所述误差放大器（3）的输出端（31）和所述驱动电路（4-6）之间的至少一个时间段（T）较低的中断装置（SW） 比所述控制装置（100; 200; 300）可操作的时间段（Tciclo）高。

公开(公告)号：WO2004010569A1

公开(公告)日：2004-01-29

申请号：PCT/IT2002/000478

申请日：2002-07-19

Applicant: STMICROELECTRONICS S.R.L. ,  FAGNANI, Mauro ,  PIDUTTI, Albino ,  ADRAGNA, Claudio

Inventor： FAGNANI, Mauro ,  PIDUTTI, Albino ,  ADRAGNA, Claudio

IPC: H02M1/00

CPC classification number: H02M1/36 ,  H02M3/335 ,  H02M2001/0006

Abstract: The present invention refers to a starting circuit for switching power supplies (SMPS), to a switching power supply comprising a starting circuit )and an integrated circuit of a switching power supply. In an embodiment thereof the starting circuit (13) for switching power supplies having a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third tenninal (30); said starting circuit comprises: a first current path between said first terminal and said third terminal (30); a second current path between said first tenninal and said second terminal; a third current path between said second terminal and said third terminal (30); a two-way voltage regulator (M3, Dz2, R5, R6) placed along said second current path.

Abstract translation: 本发明涉及用于切换电源（SMPS）的起动电路，包括起动电路的开关电源）和开关电源的集成电路。 在其实施例中，用于切换来自第一端子的第一电源电压（Vin）和来自第二端子和第三端子（30）的第二电源电压（Vcc）的电源的启动电路（13）。 所述启动电路包括：在所述第一端子和所述第三端子之间的第一电流路径; 所述第一终端和所述第二终端之间的第二电流路径; 所述第二端子和所述第三端子之间的第三电流通路; 沿着所述第二电流路径放置的双向电压调节器（M3，Dz2，R5，R6）。