Patents by Inventor Ralf Forster

Ralf Forster has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20170298921
    Abstract: A disposable cartridge (20) for a peristaltic micro pump, comprising a housing (21); a inlet provided on the housing and comprising an inlet connector (25); an outlet provided on the housing and comprising an outlet connector (26); a fluid channel (23) extending in the housing (21) between the inlet and the outlet; a channel section (22) of the fluid channel (23), the channel section (22) provided by a flexible tube (24); one or more openings provided adjacent to the channel section (22) in the housing (21) in such a way that one or more pump engaging elements of a pump drive can engage with the flexible tube (24) through the opening for compressing the flexible tube (24) in a pumping process for pumping a fluid through the fluid channel (23); and a mounting device provided on the housing (21) for detachably mounting the housing (21) in a peristaltic micro pump housing. Furthermore, a peristaltic micro pump, comprising a disposable cartridge (20) is disclosed.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 19, 2017
    Inventors: Andreas LOTH, Ralf FORSTER
  • Publication number: 20100014202
    Abstract: An integrated circuit has a control circuit (2) for a power field-effect transistor (3), wherein the integrated circuit has a first input (202) for receiving a control signal (CE) and an output to switch the field-effect transistor (3) on or off. The control circuit further has a driver circuit for providing a voltage level at the output in response of the control signal. A second input is provided for receiving a configuration signal, the configuration signal for configuring the voltage level being provided by the driver circuit in response to the control signal.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 21, 2010
    Inventors: Ralf Forster, Marco Well, Gunther Wolfarth
  • Publication number: 20090066355
    Abstract: A circuit with switchable functionality has a first integrated circuit, which has, in a first operating mode, full functionality and which has, in at least one other operating mode, a functionality which is reduced in comparison with the full functionality. The circuit further has an output terminal to which a coupling element can be coupled, an identification device which identifies whether a first supply potential has been applied to the output terminal via the coupling element and in this case produces a status signal with a first value and otherwise produces a status signal with a second value, a setting device, which sets the full or reduced functionality as a function of the value of the status signal in the first integrated circuit. The invention also relates to an electronic component having such a circuit arrangement.
    Type: Application
    Filed: March 8, 2007
    Publication date: March 12, 2009
    Applicant: CONTINENTAL AUTOMOTIVE GMBH
    Inventors: Thomas Frohnhofer, Ralf Forster, Dieter Sass
  • Publication number: 20080212254
    Abstract: A control circuit for a switching device with a relay and a switch. The control circuit is configured in such a way as to produce a hold signal for a predetermined period of time when a start signal is supplied thereto. The control circuit is also configured in such a way as to produce the hold signal for the predefined period of time independently of the course of the start signal during the predefined period of time. The control circuit is also configured in order to activate a switch output when at least one of two conditions is met. The switch enables the relay to be supplied with current when the switch output is activated, otherwise it prevents the relay from being supplied with current.
    Type: Application
    Filed: November 25, 2005
    Publication date: September 4, 2008
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Bastian Arndt, Ralf Forster, Gunther Wolfarth
  • Publication number: 20080143340
    Abstract: A method and a circuit are provided for the continuous detection of a line break in a full bridge controlling an inductive load. When the full bridge is switched off or on, a pre-determinable switching device of the circuit is switched first, and then a potential applied to a connection between the switching device and the load is tapped. The tapped potential is then compared with the ground potential when the switching device is connected to the supply potential, or with the supply potential when the switching device is connected to the ground potential. A line break is then determined when the two compared potentials are not different in the free running state thereof.
    Type: Application
    Filed: January 25, 2006
    Publication date: June 19, 2008
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Ralf Forster, Gunther Wolfarth
  • Publication number: 20080004765
    Abstract: The operating voltage is monitored in a microcontroller having associated output stages which are used to control components. In the case of over-voltage, the output stage is disconnected. Two technology-related, voltage monitoring devices working in different operating voltage ranges are provided. Due to the combination thereof, a highly precise disconnection threshold and a greater area for the operating voltage, which is to be monitored, can be obtained. If a malfunction of an over-voltage occurs, the output stages can be disconnected in a reliable manner.
    Type: Application
    Filed: April 8, 2005
    Publication date: January 3, 2008
    Applicant: SIEMENS AKTIENGESELLSCHAFT
    Inventors: Johann Falter, Alfons Fisch, Ralf Forster, Marco Kick, Thomas Maier, Norman Marenco, Peter Skotzek
  • Publication number: 20060129889
    Abstract: A circuit configuration providing a diagnostic signal for a power switching device which switches a load has a test circuit, a filter device, a validation device, and a coding device. The test circuit tests the power switching device and generates error symptoms for characterizing error types of different priorities. The filter device, depending on an activation signal activating the power switching device, provides a validity signal for the generated error symptoms. The validity signal specifies the validity of the corresponding error symptom in each case. The validation device validates a generated error symptom depending on the associated validity signal in each case and validates the validated activation signal and from this generates a group of is states and the associated complementary states. The coding device codes the states and complementary states depending on the priorities of the error types assigned to the states and complementary states.
    Type: Application
    Filed: November 10, 2005
    Publication date: June 15, 2006
    Inventors: Bastian Arndt, Ralf Forster, Konstantin Thiveos, Gunther Wolfarth
  • Publication number: 20040123853
    Abstract: An ignition system (1, 2, 41) for an internal combustion engine is provided with an outlet for electric activation of an ignition element (9) for a combustion element in an internal combustion engine, an energy accumulator (3) for accumulating the electric energy, a control element (4) which is connected to the energy accumulator (3) and which is used to charge the energy accumulator (3) during a predefined charging time, in addition to a measuring unit for detecting the charge state of the energy accumulator (3). In order to set the charge time for the energy accumulator, a timer is provided, said timer being connected to the control element (4) on the outlet side, and the measuring unit (6, 10-12) is connected to said timer in a feedback loop, whereby the timer adjusts the charge time according to the charge state of the measured charge state of the energy accumulator.
    Type: Application
    Filed: November 26, 2003
    Publication date: July 1, 2004
    Inventors: Ralf Forster, Stefan Haimerl, Kurt Kienbaum
  • Publication number: 20040123854
    Abstract: An ignition device (2) for an internal combustion engine, a controller (1) for said ignition device (2) and an ignition unit comprising the ignition device (2) and controller (1) are disclosed, whereby the controller (1) is linked to the ignition device (2) by means of a bidirectional control line (5).
    Type: Application
    Filed: November 26, 2003
    Publication date: July 1, 2004
    Inventors: Ralf Forster, Stefan Haimerl, Kurt Kienbaum
  • Patent number: 6078198
    Abstract: A power MOSFET switch is connected in parallel to a capacitive actuator for the purpose of protecting the actuator against over-voltage. The protective power MOSFET switch is rendered conductive by a supplemental circuit when the actuator voltage exceeds a predetermined threshold limit voltage or when the control circuit emits a corresponding signal.
    Type: Grant
    Filed: March 10, 1998
    Date of Patent: June 20, 2000
    Assignee: Siemens Aktiengesellschaft
    Inventors: Hartmut Gerken, Ralf Forster, Martin Hecker, Richard Pirkl, Christian Hoffmann, Hellmut Freudenberg