公开(公告)号：WO2005091480A1

公开(公告)日：2005-09-29

申请号：PCT/EP2005/050848

申请日：2005-02-28

Applicant: STMICROELECTRONICS s.r.l. ,  ADRAGNA, Claudio ,  FAGNANI, Mauro ,  MORICONI, Ugo

Inventor： ADRAGNA, Claudio ,  FAGNANI, Mauro ,  MORICONI, Ugo

IPC: H02M1/00

CPC classification number: H02M1/32 ,  H02M1/4225 ,  Y02B70/126

Abstract: There is described a device for the correction of the power factor in forced switching power supplies. The device comprises a converter (20) and a control device (100) coupled with the converter (20) in order to obtain from an alternated mains input voltage (Vin) a regulated voltage (Vout) on the output terminal; the converter (20) comprises a power transistor (M) and said control device (100) comprises an error amplifier (3) having in input on the inverting terminal a signal (Vr) proportional to the regulated voltage (Vout) and on the non-inverting terminal a reference voltage (Vref). The signal (Vr) proportional to the regulated voltage is produced by a first resistance (R1) and a second resistance (R2) coupled in series to which is applied said regulated voltage (Vout); a terminal of the second resistance (R2) is connected with the inverting terminal of the error amplifier (3). The device for the correction of the power factor comprises first means (D50) positioned between the first resistance (RI) and the inverting terminal of the error amplifier (3) and second means (50) suitable for detecting the electrical connection of the first means (D50) with the output terminal of said device for the correction of the power factor and suitable for detecting an output signal (Vr2) of the second resistance (R2). The second means (50) are suitable for supplying a malfunction signal (Fault) of the device for the correction of the power factor when the second means (50) detect electric disconnection of the first means (D50) from said output terminal (Out) or when the output signal (Vr2) of the second resistance (R2) tends to zero.

Abstract translation: 描述了用于在强制开关电源中校正功率因数的装置。 该装置包括与转换器（20）耦合的转换器（20）和控制装置（100），以便从输出端子上的交流电源输入电压（Vin）获得调节电压（Vout）; 所述转换器（20）包括功率晶体管（M），并且所述控制装置（100）包括误差放大器（3），所述误差放大器（3）在反相端子上具有与调节电压（Vout）成比例的信号（Vr） - 反相端子参考电压（Vref）。 与调节电压成比例的信号（Vr）由与所述调节电压（Vout）一起施加的串联耦合的第一电阻（R1）和第二电阻（R2）产生; 第二电阻（R2）的端子与误差放大器（3）的反相端连接。 用于校正功率因数的装置包括位于误差放大器（3）的第一电阻（RI）和反相端之间的第一装置（D50）和第二装置（50），适于检测第一装置 （D50）与所述装置的输出端子进行功率因数的校正，并适于检测第二电阻（R2）的输出信号（Vr2）。 第二装置（50）适用于当第二装置（50）检测到第一装置（D50）从所述输出端子（Out）的电断开时，提供用于校正功率因数的装置的故障信号（Fault） 或者当第二电阻（R2）的输出信号（Vr2）变为零时。

公开(公告)号：WO2005086333A1

公开(公告)日：2005-09-15

申请号：PCT/EP2005/050737

申请日：2005-02-21

Applicant: STMICROELECTRONICS s.r.l. ,  ADRAGNA, Claudio ,  FAGNANI, Mauro

Inventor： ADRAGNA, Claudio ,  FAGNANI, Mauro

IPC: H02M3/28

CPC classification number: H02M3/28 ,  H02M2001/0006 ,  H02M2001/009

Abstract: The present invention refers to switching power supplies and in particular to a circuit for reducing the variations of auto-supply voltage of a control circuit of a switching power supply. In an embodiment thereof the circuit for reducing the variations of the auto-supply voltage (Vcc) of a control circuit (12) of a switching power supply where said control circuit (12) supplies an activation or deactivation signal of a power transistor comprises: a generator (Wa) of said auto-supply voltage (Vcc); characterized in that it comprises a controlled switch (T) capable of selectively connecting said generator (Wa) to said control circuit (12); and a driving circuit (SW2) of said controlled switch (T) that supplies a closing signal of said controlled switch (T) after a predefined delay of time (Td) starting from said deactivation command.

Abstract translation: 本发明涉及开关电源，特别是涉及用于减小开关电源的控制电路的自动供电电压的变化的电路。 在其实施例中，用于减小开关电源的控制电路（12）的变化的电路，其中所述控制电路（12）提供功率晶体管的激活或去激活信号包括： 所述自动电源电压（Vcc）的发电机（Wa）; 其特征在于，其包括能够选择性地将所述发电机（Wa）连接到所述控制电路（12）的受控开关（T）; 以及所述受控开关（T）的驱动电路（SW2），其在从所述去激活命令开始的预定的延迟时间（Td）之后提供所述受控开关（T）的闭合信号。

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）。

公开(公告)号：EP1540801A1

公开(公告)日：2005-06-15

申请号：EP02783520.6

申请日：2002-09-20

Applicant: STMicroelectronics S.r.l.

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.

公开(公告)号：EP1523802A1

公开(公告)日：2005-04-20

申请号：EP02760554.2

申请日：2002-07-19

Applicant: STMicroelectronics S.r.l.

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

IPC: H02M1/00 ,  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: 本发明涉及用于开关电源（SMPS）的启动电路，包括启动电路的开关电源）和开关电源的集成电路。 在其实施例中，用于开关电源的启动电路（13）具有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）; 所述启动电路包括：在所述第一端子和所述第三端子（30）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（30）之间的第三电流路径; 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：EP1523802B1

公开(公告)日：2008-03-12

申请号：EP02760554.2

申请日：2002-07-19

Applicant: STMicroelectronics S.r.l.

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

IPC: H02M1/00 ,  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.

公开(公告)号：EP2054787B1

公开(公告)日：2009-12-23

申请号：EP06796258.9

申请日：2006-08-07

Applicant: STMicroelectronics S.r.l.

Inventor： FAGNANI, Mauro ,  BARTOLO, Vincenzo ,  ADRAGNA, Claudio

IPC: H02M1/42 ,  G05F1/70

CPC classification number: G05F1/70

公开(公告)号：EP2054787A1

公开(公告)日：2009-05-06

申请号：EP06796258.9

申请日：2006-08-07

Applicant: STMicroelectronics S.r.l.

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: 这里描述的是用于强制开关电源中的功率因数校正的装置的控制装置; 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）获得经调节的输出电压（Vout）。 控制装置（1）包括与电容器（Cff）相关联的产生装置（421-423），用于产生表示交流线电压的均方根值的信号（Vff） 生成装置（421-424）与用于放电（Rff）所述电容器的装置相关联。 所述控制装置包括用于当所述信号（Vff）代表性的信号（Vff）代表当所述信号（Vff）代表所述电容器（Cff）时适合于使所述电容器放电的另一装置（M1，COMP1，C1; M16，COMP1，CI1; M50，COMP22，C0MP33， 的交流线电压的均方根值低于给定值（VCl，VCI 1，Vint）。