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    11.
    发明专利
    未知

    公开(公告)号：DE10002326C2

    公开(公告)日：2003-09-25

    申请号：DE10002326

    申请日：2000-01-20

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

    IPC: H02M1/00 ,  H02M1/32 ,  H02M3/335 ,  H02M3/28 ,  H02H7/12

    Abstract: In order to achieve complete short-circuit protection irrespective of a location of a short-circuit in a switched-mode power supply having a controllable switch in a primary circuit, the controllable switch is opened when a voltage drop across an electrolytic capacitor in a primary circuit falls below a threshold value which can be predetermined. For this purpose, a capacitive voltage device containing two capacitances is connected in parallel with the electrolytic capacitor. A potential at a center tap of the capacitive voltage divider is compared in a comparator with a reference voltage, which opens the controllable switch when the potential at the center tap falls below the reference voltage.

    13.
    发明专利
    未知

    公开(公告)号：DE59901471D1

    公开(公告)日：2002-06-20

    申请号：DE59901471

    申请日：1999-08-13

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

    IPC: H02M3/335

    Abstract: The invention relates to a switched mode power supply, whereby the number of components is reduced to a considerable extent in comparison with conventional switched mode power supplies. The switching transistor of the switched mode power supply is controlled by a processor on the secondary side of said switched mode power supply. Control thereof is determined by the software of the processor and can be slightly modified and adapted. The required processor functions can be taken over by a processor that is already contained in the device which is powered by the switched mode power supply.

    14.
    发明专利
    未知

    公开(公告)号：DE10002326A1

    公开(公告)日：2001-08-09

    申请号：DE10002326

    申请日：2000-01-20

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

    IPC: H02M1/00 ,  H02M1/32 ,  H02M3/335 ,  H02M3/28

    Abstract: In order to achieve complete short-circuit protection irrespective of a location of a short-circuit in a switched-mode power supply having a controllable switch in a primary circuit, the controllable switch is opened when a voltage drop across an electrolytic capacitor in a primary circuit falls below a threshold value which can be predetermined. For this purpose, a capacitive voltage device containing two capacitances is connected in parallel with the electrolytic capacitor. A potential at a center tap of the capacitive voltage divider is compared in a comparator with a reference voltage, which opens the controllable switch when the potential at the center tap falls below the reference voltage.

    15.
    发明专利
    未知

    公开(公告)号：DE19939389A1

    公开(公告)日：2001-03-08

    申请号：DE19939389

    申请日：1999-08-19

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

    IPC: H02M3/335 ,  H02M3/00

    Abstract: In order to reduce switching losses, the frequency of a switched-mode power supply is lowered, in the instance of a diminishing output load, by frequency changes which can, however, cause disturbances, e.g. a corruption of the image geometry in television receivers. The disturbances caused by frequency changes can be reduced by adjusting the characteristic of the control system which is, however, relatively complex. A simple, very inexpensive and yet extremely effective solution for reducing disturbances caused by frequency changes provides that, in the case of a switched-mode power supply, the beginning of the process of lowering the frequency to lower power outputs is postponed so that the frequency changes occur in a power range where they no longer create disturbances. The invention is suited for switched-mode power supplies having a primary current simulation, e.g. for the Siemens Module TDA 16846. Corruptions of the image geometry no longer occur in a television receiver when using the inventive switched-power mode supply.

    16.
    发明专利
    未知

    公开(公告)号：DE50100993D1

    公开(公告)日：2003-12-24

    申请号：DE50100993

    申请日：2001-01-09

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： FELDTKELLER MARTIN ,  PRELLER PETER

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

    Abstract: To start a switching power supply in an energy saving manner, the method and device according to the invention transmits the energy that is collected by the Y-capacitors through a diode to a capacitor that is located on the secondary side. Once the voltage in the capacitor reaches a first predefinable minimum value, the voltage is applied to an impulse generator as an input voltage and the generator starts the switching power supply. Once the voltage in an additional capacitor on the secondary side reaches a second predefinable minimum value, the voltage in the capacitor is also applied as an input voltage to a control unit, preferably, a microprocessor, that controls the impulse generator.

    Voltage converter has auxiliary voltage generator providing control energy for burst operating mode
    19.
    发明专利
    Voltage converter has auxiliary voltage generator providing control energy for burst operating mode 未知

    公开(公告)号：DE10038988A1

    公开(公告)日：2002-03-14

    申请号：DE10038988

    申请日：2000-08-10

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

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

    Abstract: The voltage converter has 3 inductively coupled inductive elements (Wa,Wb,Wc), with a controlled switch (SW) for switching the input voltage (Ui) to the first inductive element and a supply voltage storage capacitor (CS) coupled via a first diode (DD) to the second inductive element and via a second diode (D1) in series with a run-up resistor (RS) to the input voltage. A control circuit (IC) supplied from the storage capacitor controls the switch in dependence on the storage capacitor supply voltage in a normal mode or a stand-by mode, a higher output voltage provided at the third inductive element in the normal mode than in the stand-by mode. An auxiliary voltage generator (AVG), between the storage capacitor and the second inductive element, provides the control energy for a burst operating mode, with automatic adoption of the burst duration.

    Generating number of regulated direct voltages from common input voltage involves alternately supplying at least two charge storage devices from inductive storage device
    20.
    发明专利
    Generating number of regulated direct voltages from common input voltage involves alternately supplying at least two charge storage devices from inductive storage device 未知

    公开(公告)号：DE10259353A1

    公开(公告)日：2004-07-22

    申请号：DE10259353

    申请日：2002-12-18

    Applicant: INFINEON TECHNOLOGIES AG

    Inventor： PRELLER PETER

    IPC: H02M3/335

    Abstract: The method involves controlling inductive storage device charge/discharge cycles using a primary switch, supplying it from the input voltage during charging, supplying output side charge storage devices from the inductive storage device during discharging and supplying load currents associated with the output voltages from the charge storage devices. At least two charge storage devices are alternately supplied from the inductive device. The method involves controlling charging and discharging cycles of an inductive storage device using a primary switch (SE) and supplying the inductive storage device from the input voltage (UE) during the charging cycle, supplying output side charge storage devices (C1,C2) from the inductive storage device during the discharge cycle and supplying load currents associated with the output voltages (U1,U2) from the charge storage devices. At least two of the charge storage devices are alternately supplied from the inductive storage device. AN Independent claim is also included for the following: (a) a switching regulator arrangement for implementing the inventive method (b) and a switching regulator control component.

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