Patents by Inventor Moshe Kalichstein

Moshe Kalichstein 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: 7449844
    Abstract: A programmable digital power controller for gas discharge devices such as fluorescent lamps or other devices using all digital internal and external programmable controls. A specific ASIC is described. A gate array and microcomputer share parallel functions with fast sub-functions carried out by the gate array and slower sub-functions carried out by a micro-processor. Circuits are provided for automatic shut down when a high frequency ground fault is detected; for connecting the filaments of multiple gas discharge devices in a series/parallel circuit in a manner that power for a particular device is disabled when that device is removed from the circuit; for driving the load as close to resonance as possible but in an inductive mode; and for developing a dead time between high side and low side switches which is related to transformer current, switch current, bridge voltage or bridge voltage dv/dt.
    Type: Grant
    Filed: September 13, 2004
    Date of Patent: November 11, 2008
    Assignee: Systel Development + Industries Ltd.
    Inventors: Arie Lev, Rafael Mogilner, Daniel Rubin, Yoel Sharaby, Moshe Kalichstein
  • Publication number: 20080205104
    Abstract: A programmable digital power controller for gas discharge devices such as fluorescent lamps or other devices using all digital internal and external programmable controls. A specific ASIC is described. A gate array and microcomputer share parallel functions with fast sub-functions carried out by the gate array and slower sub-functions carried out by a micro-processor. Circuits are provided for automatic shut down when a high frequency ground fault is detected; for connecting the filaments of multiple gas discharge devices in a series/parallel circuit in a manner that power for a particular device is disabled when that device is removed from the circuit; for driving the load as close to resonance as possible but in an inductive mode; and for developing a dead time between high side and low side switches which is related to transformer current, switch current, bridge voltage or bridge voltage dv/dt.
    Type: Application
    Filed: January 27, 2008
    Publication date: August 28, 2008
    Applicant: Systel Development & Industries Ltd.
    Inventors: Arie Lev, Rafael Mogilner, Daniel Rubin, Yoel Sharaby, Moshe Kalichstein
  • Patent number: 6963178
    Abstract: A power controller for fluorescent lamp dimming is disclosed, using all digital internal and external programmable controls. A specific ASIC is described. A gate array and microcomputer share parallel functions with fast sub-functions carried out by the gate array and slower sub-functions carried out by a micro-processor. Circuits are provided for automatic shut down when a high frequency ground fault is detected; for connecting the filaments of gas discharge lamps in a series/parallel circuit for driving the load as close to resonance as possible but in an inductive mode; and for developing a dead time between high side and low side switches which is related to transformer current, switch current, bridge voltage or bridge voltage dv/dt.
    Type: Grant
    Filed: December 7, 1999
    Date of Patent: November 8, 2005
    Assignee: Systel Development and Industries Ltd.
    Inventors: Arie Lev, Rafael Mogilner, Daniel Rubin, Yoel Sharaby, Moshe Kalichstein
  • Publication number: 20050035729
    Abstract: A power controller for flourescent lamp dimming is disclosed, using all digital internal and external programmable controls. A specific ASIC is described. A gate array and microcomputer share parallel functions with fast sub-functions carried out by the gate array and slower sub-functions carried out by a micro-processor. Circuits are provided for automatic shut down when a high frequency ground fault is detected; for connecting the filaments of gas discharge lamps in a series/parallel circuit; for driving the load as close to resonance as possible but in an inductive mode; and for developing a dead time between high side and low side switches which is related to transformer current, switch current, bridge voltage or bridge voltage dv/dt.
    Type: Application
    Filed: September 13, 2004
    Publication date: February 17, 2005
    Inventors: Arie Lev, Rafael Mogilner, Daniel Rubin, Yoel Sharaby, Moshe Kalichstein
  • Patent number: 6043633
    Abstract: A method and apparatus for controlling a boost converter, which offers improved power factor correction by compensating for the distorting effects of parasitic capacitance and parasitic oscillations. By precise adjustments to the closing time of the boost switch, the effects of parasitic capacitance can be reduced or eliminated. A zero current detector capable of detecting both forward and reverse zero current points facilitates the compensation. The method and circuit of the present invention are well-suited to integration with an inexpensive digital controller such as a microprocessor, and a method of dithering to enhance the time resolution of clocked digital circuits is presented.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: March 28, 2000
    Assignees: Systel Development & Industries, International Rectifier Corp.
    Inventors: Arie Lev, Yoel Sharaby, Daniel Rubin, Moshe Kalichstein