公开(公告)号：DE10044800C2

公开(公告)日：2003-07-31

申请号：DE10044800

申请日：2000-09-11

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H01F13/00 ,  H04N9/29

公开(公告)号：ES2157606T3

公开(公告)日：2001-08-16

申请号：ES97949930

申请日：1997-11-14

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/28 ,  H02M3/335

Abstract: The switched-mode power supply has a transformer with an E-shaped core. Each side limb of the core is surrounded by a winding. The flow of current through the secondary winding is controlled by the output voltage to be regulated. A control signal for controlling the switching frequency of the power supply is decoupled at the primary side winding. This makes it possible to dispense with an optical coupler which would otherwise be necessary.

公开(公告)号：DE59703570D1

公开(公告)日：2001-06-21

申请号：DE59703570

申请日：1997-11-14

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/28 ,  H02M3/335

Abstract: The switched-mode power supply has a transformer with an E-shaped core. Each side limb of the core is surrounded by a winding. The flow of current through the secondary winding is controlled by the output voltage to be regulated. A control signal for controlling the switching frequency of the power supply is decoupled at the primary side winding. This makes it possible to dispense with an optical coupler which would otherwise be necessary.

公开(公告)号：DE102004052865B4

公开(公告)日：2009-12-24

申请号：DE102004052865

申请日：2004-11-02

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: G05F1/70 ,  H02M3/335

公开(公告)号：DE102004043680A1

公开(公告)日：2006-03-30

申请号：DE102004043680

申请日：2004-09-09

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/338

Abstract: The control circuit [1] produces a signal [S1] with a switching amplitude when the inductive energy storage element [L1] reaches a predetermined magnetised condition. The charging or discharging of a capacitor [C5] is dependent on the comparison of an input voltage [V5] and a reference [Vref] and this produces the output control signal when the voltage exceeds the reference.

公开(公告)号：DE10042588B4

公开(公告)日：2006-03-02

申请号：DE10042588

申请日：2000-08-30

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/158 ,  H02M3/28 ,  H02M3/335 ,  H04N5/63

Abstract: The mains power part is provided with a circuit arrangement for the reduction of a primary voltage lying across the primary coil (L1) of a transformer (L1,L2). A second switch (T2) is connected in series to the first capacitor (C1). So that the second switch (T2) conducts or blocks according to a second control signal (STS). A control circuit (CON1,CON2) is provided for the preparation of a first control signal (AS).

公开(公告)号：DE10112537A1

公开(公告)日：2002-10-02

申请号：DE10112537

申请日：2001-03-15

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/335 ,  H02M3/28 ,  H03K17/16 ,  H03K17/30

Abstract: A method for driving a switch in a switched-mode power supply, in which the switch is connected in series with a primary coil of a transformer and in which a control signal dependent on an output voltage is available. In this case, reference instants at which a voltage present across the switch corresponds to a first reference voltage value or at which a voltage present across the primary coil corresponds to a second reference voltage value are detected and counted, the switch being closed again only after the number of detected reference instants has reached a comparison numerical value. The invention furthermore relates to a switched-mode power supply for realizing the method according to the invention.

公开(公告)号：ES2170528T3

公开(公告)日：2002-08-01

申请号：ES98949902

申请日：1998-08-14

Applicant: INFINEON TECHNOLOGIES AG

Inventor： NIEDERREITER HANS ,  PRELLER PETER

IPC: H02M3/28 ,  G01R22/00 ,  H02M3/335 ,  H04N5/63

Abstract: A circuit arrangement is provided that is suitable for determining the output power of switched-mode power supplies. A charge capacitor is charged with a constant current for the duration of the discharging time of a transformer. The voltage across the charge capacitor is integrated by a downstream integration element. The output voltage of the integration element is proportional to the mean power of the switched-mode power supply. The inventive circuit arrangement takes into consideration that the charging and discharging times of the transformer can be different for different switching frequencies of the switched-mode power supply, even when the power output of the switched-mode power supply is the same.

公开(公告)号：DE10001866A1

公开(公告)日：2001-08-02

申请号：DE10001866

申请日：2000-01-18

Applicant: INFINEON TECHNOLOGIES AG

Inventor： PRELLER PETER

IPC: H02M3/335 ,  H02M3/28

Abstract: The method involves a control unit (IC) switching on the switching network stage if the output voltage (Us) falls to a predefined minimum value. An a.c. voltage is applied to the a.c. input of a bridge rectifier (BR) with a parallel circuit of a first capacitor (C1) and a series circuit contg. the primary winding of a transformer (Tr) and a switch (T1) controlled by the control unit. The regulated output voltage is taken from a second capacitor (C2) in a series circuit with a diode (D1) that is in parallel with the transformer secondary.