Patents by Inventor Stig Alnøe Lindemann

Stig Alnøe Lindemann 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).

  • Patent number: 10511296
    Abstract: The present invention relates to a system and a method for pulse width modulation and demodulation of a continuous input signal, which system is configured to receive a continuous input to an analog modulator, which system comprises a demodulator generating a continuous output signal. It is the object of the pending patent application to use an analog modulator for transmitting the signal from the input stage over to an output stage. A further object of the pending patent application is to preserve the signal integrity in regard to precision and to minimize both non-linearities and distortion side effects.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: December 17, 2019
    Assignee: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Dan Vinge Madsen
  • Patent number: 9991708
    Abstract: A power supply and a method for operating the power supply in which a transformer connected to an excitation circuit which is adapted to be connected to a power source, which secondary winding is connected to at least one first power supply. From prior art. switch mode power supply based on fly back technology is well known. Here a power supply with a power inlet is provided with a plurality of separated power outlets. One of the lines connected to the primary winding is further connected to a discharge control circuit, which discharge control circuit is further connected to at least one second power supply and the primary winding is further connected to a discharge circuit where at least one further power supply is connected.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: June 5, 2018
    Assignee: PR Electronics A/S
    Inventor: Stig Alnøe Lindemann
  • Publication number: 20170237420
    Abstract: The present invention relates to a system and a method for pulse width modulation and demodulation of a continuous input signal, which system is configured to receive a continuous input to an analog modulator, which system comprises a demodulator generating a continuous output signal. It is the object of the pending patent application to use an analog modulator for transmitting the signal from the input stage over to an output stage. A further object of the pending patent application is to preserve the signal integrity in regard to precision and to minimize both non-linearities and distortion side effects.
    Type: Application
    Filed: July 1, 2015
    Publication date: August 17, 2017
    Applicant: PR ELECTRONICS A/S
    Inventors: Stig Alnøe Lindemann, Dan Vinge Madsen
  • Patent number: 9647573
    Abstract: A low-power power supply for an electronic circuit uses an existing current input and converts the current to a higher voltage sufficient for supplying an electronic circuit. The input current generates a defined input voltage, which input voltage is initially generated by voltage drop by the input current passing at least one diode in the open direction of the diode. The input voltage, through a transistor, charges a plurality of switched capacitor networks in a first mode of operation, and in a second mode of operation, the switched capacitor networks are coupled in series for multiplying the input voltage to second higher voltage that is supplied to a oscillating circuit. The oscillating circuit drives the input current via a transformer and half bridge driver to convert a low voltage current supply from a low voltage current into a low current and higher voltage useable for supplying a small electronic circuit.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 9, 2017
    Assignee: PR Electronics A/S
    Inventors: Mads Kolding Nielsen, Stig Alnøe Lindemann
  • Patent number: 9552003
    Abstract: A circuit for generation of a reference voltage for an electronic system, which circuit comprises at least one digital buffer (U21, U31, U32, U41, U51), a low pass filter (R21, C21; R31, C31; R41, C41; R51, C51) and an operational amplifier (OA21, OA31, OA41, OA51)), which circuit is adapted to revive an input in the form of a bandgap reference voltage into the digital buffer, which digital buffer is adapted to receive a digital input from a Pulse Width Modulated (PWM) signal, which digital buffer is adapted to generate an output signal adapted to be fed to the low pass filter, which output signal after filtration is adapted to be fed to a positive input terminal of the operational amplifier, which operational amplifier comprises a feedback circuit, which feedback circuit comprises at least one capacitor (C22, C32, C44, C54) adapted to be connected from an output terminal of the operational amplifier towards a negative input terminal of the operational amplifier so as to form an integrator, wherein the feedba
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: January 24, 2017
    Assignee: PR Electronics A/S
    Inventors: Dan Vinge Madsen, Stig Alnøe Lindemann
  • Publication number: 20160299519
    Abstract: A circuit for generation of a reference voltage for an electronic system, which circuit comprises at least one digital buffer (U21, U31, U32, U41, U51), a low pass filter (R21, C21; R31, C31; R41, C41; R51, C51) and an operational amplifier (OA21, OA31, OA41, OA51)), which circuit is adapted to revive an input in the form of a bandgap reference voltage into the digital buffer, which digital buffer is adapted to receive a digital input from a Pulse Width Modulated (PWM) signal, which digital buffer is adapted to generate an output signal adapted to be fed to the low pass filter, which output signal after filtration is adapted to be fed to a positive input terminal of the operational amplifier, which operational amplifier comprises a feedback circuit, which feedback circuit comprises at least one capacitor (C22, C32, C44, C54) adapted to be connected from an output terminal of the operational amplifier towards a negative input terminal of the operational amplifier so as to form an integrator, wherein the feedba
    Type: Application
    Filed: April 8, 2016
    Publication date: October 13, 2016
    Applicant: PR Electronics A/S
    Inventors: Dan Vinge Madsen, Stig Alnøe Lindemann
  • Publication number: 20160141872
    Abstract: A power supply and a method for operating the power supply in which a transformer connected to an excitation circuit . . . is adapted to be connected to a power source, which secondary winding is connected to at least one first power supply. From prior art. switch mode power supply based on fly back technology is well known. Here a power supply with a power inlet is provided with a plurality of separated power outlets. One of the lines connected to the primary winding is further connected to a discharge control circuit, which discharge control circuit is further connected to at least one second power supply and the primary winding is further connected to a discharge circuit where at least one further power supply is connected.
    Type: Application
    Filed: June 4, 2014
    Publication date: May 19, 2016
    Applicant: PR Electronics A/S
    Inventor: Stig Alnøe LINDEMANN
  • Patent number: 9325248
    Abstract: A converter with at least one or more transformers having at least one primary side magnetically coupled to at least one secondary side, the primary side being electrically isolated from the secondary side, wherein a first transformer has first and second sets of coils and a second transformer has third and fourth sets of coils. The first set of coils is connected in series to the third set of coils, wherein one of the secondary sides is connectable to an external output unit, wherein another secondary side is connectable to an external input source, wherein the two secondary sides are electrically isolated from each other, wherein the primary side is adapted to drive the transformers that are connectable to an external power source. The converter uses a shared current path and an isolated current-to-current transfer between the input and output sides to replicate the input current to an output current.
    Type: Grant
    Filed: June 27, 2013
    Date of Patent: April 26, 2016
    Assignee: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Dan Vinge Madsen
  • Patent number: 9191024
    Abstract: A system for galvanic isolation between an analog input signal and an analog output signal, which system performs an analog to digital conversion of the input signals into input digital data. As a result, input parameters can be corrected in a nearly perfect way.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: November 17, 2015
    Assignee: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Mads Kolding Nielsen
  • Publication number: 20150200600
    Abstract: A converter with at least one or more transformers having at least one primary side magnetically coupled to at least one secondary side, the primary side being electrically isolated from the secondary side, wherein a first transformer has first and second sets of coils and a second transformer has third and fourth sets of coils. The first set of coils is connected in series to the third set of coils, wherein one of the secondary sides is connectable to an external output unit, wherein another secondary side is connectable to an external input source, wherein the two secondary sides are electrically isolated from each other, wherein the primary side is adapted to drive the transformers that are connectable to an external power source. The converter uses a shared current path and an isolated current-to-current transfer between the input and output sides to replicate the input current to an output current.
    Type: Application
    Filed: June 27, 2013
    Publication date: July 16, 2015
    Applicant: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Dan Vinge Madsen
  • Publication number: 20150138837
    Abstract: A converter with at least one primary side having a first set of coils magnetically coupled to at least one secondary side having at least a second set of coils, wherein the primary side is electrically isolated from the secondary side by an isolation barrier, wherein one of the secondary sides is configured to be connected to an external output unit, wherein the primary side is magnetically coupled to another secondary side having a third set of coils which coils are configured to be coupled to an external input unit, wherein the two secondary sides are electrically isolated from each other by a second isolation barrier, wherein the three sets of coils are magnetically coupled to each other via a common magnetic path. The converter provides an isolated current-to-current transfer between the input side and the output side which replicates the input current with high accuracy.
    Type: Application
    Filed: July 9, 2013
    Publication date: May 21, 2015
    Applicant: PR ELECTRONICS A/S
    Inventor: Stig Alnøe Lindemann
  • Patent number: 8964426
    Abstract: A switched-mode power supply (SMPS) and a method of control thereof is described, wherein the SMPS is operable to apply a spread spectrum modulation to a switching driver signal to reduce EMI in the SMPS. The SMPS is operable to perform voltage and current monitoring in parallel to the spread spectrum modulation to provide variable limit threshold detection and shutdown capabilities for circuit protection.
    Type: Grant
    Filed: April 13, 2011
    Date of Patent: February 24, 2015
    Assignee: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Mads Kolding Nielsen
  • Patent number: 8803717
    Abstract: A modulation system and method for a converter system, preferable a Delta Sigma converter, is described. The system is operable to adjust the modulation performed depending on the specified format of the input and output signals for the converter. The feedback and feed forward pulsed may be adjusted depending on the requirements of the converter.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: August 12, 2014
    Assignee: PR Electronics A/S
    Inventors: Stig Alnøe Lindemann, Mads Kolding Nielsen
  • Publication number: 20130076548
    Abstract: A modulation system and method for a converter system, preferable a Delta Sigma converter, is described. The system is operable to adjust the modulation performed depending on the specified format of the input and output signals for the converter. The feedback and feed forward pulsed may be adjusted depending on the requirements of the converter.
    Type: Application
    Filed: April 18, 2011
    Publication date: March 28, 2013
    Applicant: PR ELECTRONICS A/S
    Inventors: Stig Alnøe Lindemann, Mads Kolding Nielsen
  • Publication number: 20130077359
    Abstract: A switched-mode power supply (SMPS) and a method of control thereof is described, wherein the SMPS is operable to apply a spread spectrum modulation to a switching driver signal to reduce EMI in the SMPS. The SMPS is operable to perform voltage and current monitoring in parallel to the spread spectrum modulation to provide variable limit threshold detection and shutdown capabilities for circuit protection.
    Type: Application
    Filed: April 13, 2011
    Publication date: March 28, 2013
    Applicant: PR ELECTRONICS A/S
    Inventors: Stig Alnøe Lindemann, Mads Kolding Nielsen