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公开(公告)号：DE10325519B4
公开(公告)日：2008-01-03
申请号：DE10325519
申请日：2003-06-05
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
Abstract: The circuit has a first input terminal for feeding a control signal (S2), a supply connection for applying a supply voltage (Vcc), an output terminal for providing a drive signal (S3) and at least two groups (22,30) of circuit components, each with at least two circuit components, whereby the components are coupled together and produce the drive signal from the control signal. The first group is supplied via the first input terminal (K1) and the second via the supply connection (K2) .
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公开(公告)号：DE59913575D1
公开(公告)日：2006-08-03
申请号：DE59913575
申请日：1999-03-29
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
Abstract: The circuit has an input connection for an input voltage (Ue), an output connection for providing a regulated output voltage (Ua) with a transistor (T) with its main current path between the input and output connections, a control amplifier that receives the regulated output voltage and provides a control signal (VCO) at an output connection, a capacitor (C1) between the transistor's control connection and the amplifier's output connection, a controllable current source for discharging the capacitor and a charge pump (LP) that applies a voltage controllable by the control amplifier to the transistor's control connection. The switching frequency of the charge pump can be varied depending on the control signal of the control amplifier.
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公开(公告)号：DE102004036522A1
公开(公告)日：2006-03-23
申请号：DE102004036522
申请日：2004-07-28
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN , FAHLENKAMP MARC
Abstract: An actuation circuit is provided for a switch controlling the power consumption in a switch-mode converter which has input terminals for applying an input voltage and output terminals for providing an output voltage. The actuation circuit comprises a first input for supplying a voltage measurement signal which is dependent on the output voltage, an error signal generation circuit which generates an error signal by comparing the voltage measurement signal with a reference signal, a filter arrangement which is supplied with the error signal and which generates a first control signal, and an actuation signal generation circuit which is supplied with the first control signal and which provides an actuation signal for the switch on the basis of the first control signal. The filter arrangement comprises a first filter with an integrating response which generates a first filter signal on the basis of the error signal, a second filter which generates a second filter signal from the error signal in accordance with a hysteresis characteristic, and a combinational logic circuit which generates the first control signal from the first and second filter signals.
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公开(公告)号：DE10031188B4
公开(公告)日：2005-09-01
申请号：DE10031188
申请日：2000-06-27
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FAHLENKAMP MARC , FELDTKELLER MARTIN , JASBERG HARTMUT , ZOELLINGER HARALD
Abstract: A switched mode power supply includes a primary coil, a switch element, a secondary circuit, and a control circuit. The switch element is wired in series with the primary coil, for applying a DC voltage to the primary coil according to a control signal. The secondary circuit is coupled to the primary coil with output terminals providing an output voltage. The control circuit prepares the control signal with a feedback signal dependent on the output voltage supplied to the control circuit. The control circuit includes a signal generation circuit to create the control signal and a protection circuit. The protection circuit has the effect that no control signal is delivered to the switch element, if the feedback signal reaches the value of a first reference signal after a first period after starting the control circuit.
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公开(公告)号：DE19916915B4
公开(公告)日：2005-08-11
申请号：DE19916915
申请日：1999-04-14
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
Abstract: A switched-mode power supply has a switch for a pulsed application of a variable supply voltage to a primary coil of a transformer. The power supply has a first current measuring configuration for providing a current measurement signal that is dependent on a current through the primary coil. An evaluation circuit, which is connected to the first current measuring configuration, evaluates a time characteristic of the current and/or of the current measurement signal and is provided for the purpose of determining a value of the supply voltage. A method for determining the value of the supply voltage in the switched-mode power supply by evaluating the time characteristic of the current through the primary coil is also disclosed.
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Patent Agency Ranking
公开(公告)号：DE102004035604B3
公开(公告)日：2005-08-11
申请号：DE102004035604
申请日：2004-07-22
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
IPC: H03K17/082 , H03K17/16 , H03K17/687 , H03K17/06
Abstract: The method involves detecting a load current (I1) through the half-bridge circuit and repeating a last transmitted switching signal (S40) if the load current exceeds a predefined maximum threshold value. The first semiconductor switch element is controlled to block if the load current exceeds the predefined maximum threshold value for longer than a predefined maximum time duration. An independent claim is also included for a circuit arrangement with a half-bridge circuit.
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公开(公告)号：DE10225406B4
公开(公告)日：2005-07-14
申请号：DE10225406
申请日：2002-06-07
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
Abstract: The method involves providing a threshold signal (DS). A ramp signal (RPS) is provided in the cycle of a timing signal (OS), wherein the steepness of the ramp signal depends on the output voltage (Uout) of a connection converter. The threshold signal is compared with the ramp signal and the switch (S) is triggers depending on the result. The threshold signal depends on a quotient from a first signal that depends on the input current of the connection converter and a second signal that depends on the output voltage. An Independent claim is also provided for a trigger circuit for a switch in a connection converter.
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公开(公告)号：DE10330051B3
公开(公告)日：2005-06-23
申请号：DE10330051
申请日：2003-07-03
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
IPC: H02M3/338
Abstract: The circuit has a drive signal generating stage (23,24) to which a power transfer regulating signal (S1) is fed and that generates a drive signal (S4) so the switch-on pulse duration depends on the regulating signal, a limiting stage that limits the regulating signal to a limiting signal (S6) value and a limiting signal generating stage (21) that generates the limiting signal from the drive signal to be at least approximately proportional to the quotient of the drive period and switch-off duration. An independent claim is also included a method of operating a freely oscillating switching transducer.
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公开(公告)号：DE10147882B4
公开(公告)日：2005-06-23
申请号：DE10147882
申请日：2001-09-28
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
IPC: H03K17/0812 , H03K17/16 , H03K17/687
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公开(公告)号：DE10346307B3
公开(公告)日：2004-12-30
申请号：DE10346307
申请日：2003-10-06
Applicant: INFINEON TECHNOLOGIES AG
Inventor： FELDTKELLER MARTIN
Abstract: A control input signal (Sin) is applied to the input terminal (IN) of a control switching circuit (10). A signal (Ig) passes from the output terminal (S1) of the control switching circuit to the gate (G) of the FET (M) and to a capacitor (Cgs) which passes a signal (Vgs) to earth and to the source (S) of the FET. The drain (D) of the FET is connected to a load (Z) connected to a threshold voltage (Vt).
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