Patents by Inventor John G. Konopka

John G. Konopka 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: 8917084
    Abstract: The present invention is an efficient high voltage sensing mechanism that operates only when an individual needs to test the voltage across a wire. The present invention attaches around a tested wire using a jaw and a hook. The hook is tensioned using an expansion spring. The operator propels the hook outwards from the jaw, around the tested wire; thereafter, the expansion spring retracts to latch onto the tested wire against the jaw. An on-off switch is integrated into the mechanical hook device. As the hook is propelled outwards, the on-off switch moves into the “on” position, which powers the electrical processing and voltage analysis equipment. Once the hook is returned to the initial position, the on-off switch moves to the “off” position. This arrangement allows the present invention to remain unpowered for any instance a wire is not being tested. The present invention detects voltage through capacitive coupling.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: December 23, 2014
    Assignee: Synergistic Technology Solutions, Inc.
    Inventors: John G. Konopka, Alex K. Choi, David A. Konopka
  • Publication number: 20130002239
    Abstract: The present invention is an efficient high voltage sensing mechanism that operates only when an individual needs to test the voltage across a wire. The present invention attaches around a tested wire using a jaw and a hook. The hook is tensioned using an expansion spring. The operator propels the hook outwards from the jaw, around the tested wire; thereafter, the expansion spring retracts to latch onto the tested wire against the jaw. An on-off switch is integrated into the mechanical hook device. As the hook is propelled outwards, the on-off switch moves into the “on” position, which powers the electrical processing and voltage analysis equipment. Once the hook is returned to the initial position, the on-off switch moves to the “off” position. This arrangement allows the present invention to remain unpowered for any instance a wire is not being tested. The present invention detects voltage through capacitive coupling.
    Type: Application
    Filed: July 2, 2012
    Publication date: January 3, 2013
    Inventors: John G. Konopka, Alex K. Choi, David A. Konopka
  • Publication number: 20080067950
    Abstract: A ballast (20) for powering one or more gas discharge lamps (70,72,74,76) comprises an inverter (200), an output circuit (300), and an arc protection circuit (400). Arc protection circuit (400) monitors an electrical signal within the output circuit (300). When an arcing condition occurs at the ballast output connections (302,304,306,308,310), the electrical signal includes a high frequency component having a fundamental frequency that is much greater than the normal operating frequency of the inverter (200). In response to the high frequency component exceeding a predetermined threshold, arc protection circuit (400) disables the inverter (200) for a predetermined shutdown period. Arc protection circuit (400) also provides a restart function for periodically attempting to ignite and operate the lamps.
    Type: Application
    Filed: October 5, 2007
    Publication date: March 20, 2008
    Applicant: OSRAM SYLVANIA, INC.
    Inventors: Qinghong Yu, Grigoriy A. Trestman, John G. Konopka, Joseph L. Parisella
  • Patent number: 7218063
    Abstract: A ballast (100) for powering at least one gas discharge lamp (30) at two selectable light levels includes a sensing transformer (120) and a detector circuit (200). Detector circuit (200) provides an output voltage that is dependent on the states of two on-off switches (S1,S2) interposed between the ballast (100) and a conventional AC source (20). The output voltage of the detector circuit (200) is used to control the illumination level of the lamp (30).
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: May 15, 2007
    Assignee: Osram Sylvania, Inc.
    Inventors: John G. Konopka, Naveen Yadlapalli, Shashank Bakre, Himamshu Prasad
  • Patent number: 7157896
    Abstract: The transmitter of the circuit breaker locator draws large amplitude, short duration, phase locked unipolar pulses of current from the power source at a frequency lower than that of the AC line frequency. The audible and visual indicators of the transmitter are triggered at the rate of the current pulses drawn from the AC line. The receiver of the circuit breaker locator has a pick-up coil that responds to magnetic field surrounding the circuit breaker, an amplifier for boosting the signal from the pick-up coil, and a single shot pulse stretcher triggered by the amplifier. The pulse stretcher drives both audible and visual signals, and at the same time charges a memory capacitor in a staircase generator fashion. The magnitude of the memory capacitor voltage in turn controls the gain of the amplifier. A switch controls the voltage applied to the amplifier, which increases by a predetermined amount when released.
    Type: Grant
    Filed: August 11, 2004
    Date of Patent: January 2, 2007
    Assignee: A. W. Sperry Instruments, Inc.
    Inventor: John G. Konopka
  • Patent number: 7084579
    Abstract: An electronic ballast (100) for powering at least one gas discharge lamp (30) at two light levels includes a full-wave rectifier circuit (120) and a detector circuit (200). Detector circuit (200) provides an output voltage that is dependent on the states of two on-off switches (S1,S2), but that is substantially unaffected by typical X capacitances that are present between the hot and neutral input connections of the ballast.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: August 1, 2006
    Assignee: OSRAM Sylvania Inc.
    Inventors: John G. Konopka, Naveen Yadlapalli, Shashank Bakre, Himamshu Prasad
  • Patent number: 7042161
    Abstract: FA ballast (20) for powering a gas discharge lamp (70) comprises an inverter (200) and an arc protection circuit (600). Arc protection circuit (600) monitors an electrical signal within the ballast. In response to occurrence of a disturbance in the signal, such as what occurs during output arcing, arc protection circuit (600) disables the inverter (200) for a timed shutdown period. Arc protection circuit (600) provides a timed starting period for igniting the lamp, during which time any disturbance in the electrical signal is essentially ignored and inverter (200) is allowed to continue to operate. Arc protection circuit (600) also provides a restart function for periodically attempting to ignite and operate the lamp. Arc protection circuit (600) is preferably realized using a timer integrated circuit (U1) with associated discrete circuitry, and may be adapted for use with ballasts having self-oscillating or driven type inverters.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: May 9, 2006
    Assignee: Osram Sylvania, Inc.
    Inventor: John G. Konopka
  • Patent number: 6856100
    Abstract: A ballast (20, 20?) includes a rectifier circuit (100), a boost converter (200, 200?), an inverter (300), an output circuit (400), and an inverter startup circuit (600). Inverter startup circuit (600) is coupled between boost converter (200) and inverter (300). During operation, inverter startup circuit (600) provides a delay period between startup of boost converter (200) and startup of inverter (300) so that startup of inverter (300) is delayed until at least such time as the DC rail voltage provided by boost converter (200) approaches its steady-state operating level. This ensures that the ballast (20,20?) provides an output voltage that is sufficiently high to ignite a lamp (40) in a preferred manner, with little or no glow current and a fast strike time.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: February 15, 2005
    Assignee: Osrom Sylvania, Inc.
    Inventor: John G. Konopka
  • Patent number: 6768274
    Abstract: A ballast (100) includes an inverter (140,144,146) and a protection circuit that prevents excessive lamp-to-earth-ground fault current. The protection circuit includes a transformer (202,204,206,208,210) and an inverter disable circuit (300). The transformer measures a first current going out of one set of ballast output terminals (106,108) and a second current going into another set of ballast output terminals (206,208). In response to a substantial imbalance between the first current and the second current, inverter disable circuit (300) terminates inverter switching. Preferably, protection circuit further includes a restart timer circuit (400) that, following termination of inverter switching in response to a fault condition, prevents the inverter from restarting for a predetermined delay period.
    Type: Grant
    Filed: September 28, 2002
    Date of Patent: July 27, 2004
    Assignee: Osram Sylvania, Inc.
    Inventors: John G. Konopka, Sameer Sodhi
  • Patent number: 6727662
    Abstract: A dimming control system includes a first circuit (100) and a second circuit (400). First circuit (100) is coupled in series with the AC line source (10) and receives brighten and dim commands from a user. The brighten and dim commands are communicated to second circuit (400) by momentarily altering the AC voltage waveforms observed by second circuit (400). Second circuit (400) provides an adjustable output signal that is coupled to inverter circuitry within an electronic dimming ballast. The output signal is adjusted by the second circuit (400) in dependence on the observed AC voltage waveforms.
    Type: Grant
    Filed: September 28, 2002
    Date of Patent: April 27, 2004
    Assignee: Osram Sylvania, Inc.
    Inventors: John G. Konopka, Sivakumar Thangavelu, Sameer Sodhi
  • Patent number: 6720739
    Abstract: A ballast (10,20) for powering a gas discharge lamp load (30) comprises a protection circuit (300,600) operable to monitor an electrical signal (40) in the ballast and disable the ballast for at least a predetermined period of time in response to a disturbance wherein at least a portion (44) of the electrical signal (40) exhibits a time-rate-of-change that exceeds the time-rate-of-change of the signal during normal operation of the ballast and gas discharge lamp load. Protection circuit (300,600) is capable of disabling the ballast within a response time that is less than twice the period of the electrical signal. In a preferred embodiment that is suitable for ballasts with driven-type inverters, protection circuit (300) comprises a latching device (310) and a triggering circuit (330). In a preferred embodiment that is suitable for ballasts with self-oscillating type inverters, protection circuit (600) comprises a pull-down circuit (640) and a negative voltage source (610).
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: April 13, 2004
    Assignee: Osram Sylvania, Inc.
    Inventor: John G. Konopka
  • Publication number: 20040061453
    Abstract: A ballast (100) includes an inverter (140,144,146) and a protection circuit that prevents excessive lamp-to-earth-ground fault current. The protection circuit includes a transformer (202,204,206,208,210) and an inverter disable circuit (300). The transformer measures a first current going out of one set of ballast output terminals (106,108) and a second current going into another set of ballast output terminals (206,208). In response to a substantial imbalance between the first current and the second current, inverter disable circuit (300) terminates inverter switching. Preferably, protection circuit further includes a restart timer circuit (400) that, following termination of inverter switching in response to a fault condition, prevents the inverter from restarting for a predetermined delay period.
    Type: Application
    Filed: September 28, 2002
    Publication date: April 1, 2004
    Inventors: John G. Konopka, Sameer Sodhi
  • Publication number: 20040061452
    Abstract: A dimming control system includes a first circuit (100) and a second circuit (400). First circuit (100) is coupled in series with the AC line source (10) and receives brighten and dim commands from a user. The brighten and dim commands are communicated to second circuit (400) by momentarily altering the AC voltage waveforms observed by second circuit (400). Second circuit (400) provides an adjustable output signal that is coupled to inverter circuitry within an electronic dimming ballast. The output signal is adjusted by the second circuit (400) in dependence on the observed AC voltage waveforms.
    Type: Application
    Filed: September 28, 2002
    Publication date: April 1, 2004
    Inventors: John G. Konopka, Sivakumar Thangavelu, Sameer Sodhi
  • Patent number: 6657400
    Abstract: A ballast (10) for powering a gas discharge lamp load includes an inverter (200) and a protection circuit (400) for preventing start up of the inverter (200) in response to a ground fault condition wherein one or more of the ballast output connections (302,306) is coupled to earth ground.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: December 2, 2003
    Assignee: Osram Sylvania Inc.
    Inventors: John G. Konopka, Sameer Sodhi, Himamshu V. Prasad
  • Patent number: 6552498
    Abstract: A circuit for controlling current during run-up of a high pressure discharge lamp (140) comprises a buck converter (120) for generating a buck current to drive the high pressure discharge lamp and a control circuit (202) coupled to the buck converter (120) for varying the duty cycle of the buck current during run-up is disclosed. A method for controlling current in an electronic ballast during run-up of a high pressure discharge lamp comprises steps of detecting (501) lamp ignition, providing (502) a buck current to drive the lamp, and varying (504) the duty cycle of the buck current during run-up to control (506) the current in the lamp is also disclosed.
    Type: Grant
    Filed: September 28, 2001
    Date of Patent: April 22, 2003
    Assignee: Osram Sylvania Inc.
    Inventors: Himamshu V. Prasad, Young G. Kang, John G. Konopka, Warren Moscowitz
  • Patent number: 6545432
    Abstract: A ballast (10) for powering a gas discharge lamp includes a lamp-out detection circuit (300) that quickly responds to a lamp-out condition. Lamp-out detection circuit (300) receives a portion of the lamp current and provides a detection voltage. The detection voltage remains at a first average level while the lamp is conducting current in a normal manner, but quickly decreases below a second level if the lamp ceases to conduct current. In a preferred embodiment, ballast (10) includes an inverter (100) and a resonant circuit (210,220) that are normally operated at a high frequency. The detection voltage is coupled to an enable input (112) of an inverter drive circuit (110), and the inverter (100) is either shut off or operated in a low-power mode within less than ten high frequency cycles after occurrence of a lamp-out condition.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: April 8, 2003
    Assignee: Osram Sylvania Inc.
    Inventor: John G. Konopka
  • Publication number: 20030062850
    Abstract: A ballast (10) for powering a gas discharge lamp load includes an inverter (200) and a protection circuit (400) for preventing startup of the inverter (200) in response to a ground fault condition wherein one or more of the ballast output connections (302,306) is coupled to earth ground.
    Type: Application
    Filed: July 19, 2002
    Publication date: April 3, 2003
    Inventors: John G. Konopka, Sameer Sodhi, Himamshu V. Prasad
  • Publication number: 20030062854
    Abstract: A dimming control system includes a first circuit (100) and a second circuit (200). First circuit (100) is coupled in series with the AC line source (10) and receives brighten and dim commands from a user. The brighten and dim commands are communicated to second circuit (200) by momentarily altering the AC voltage waveforms observed by second circuit (200). Second circuit (200) provides an adjustable dimming control voltage that is coupled to existing dimming control circuitry within an electronic dimming ballast. The dimming control voltage is adjusted by the second circuit (200) in dependence on the observed AC voltage waveforms.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 3, 2003
    Inventors: John G. Konopka, Sameer Sodhi
  • Publication number: 20030062849
    Abstract: A circuit for controlling current during run-up of a high pressure discharge lamp (140) comprises a buck converter (120) for generating a buck current to drive the high pressure discharge lamp and a control circuit (202) coupled to the buck converter (120) for varying the duty cycle of the buck current during run-up is disclosed. A method for controlling current in an electronic ballast during run-up of a high pressure discharge lamp comprises steps of detecting (501) lamp ignition, providing (502) a buck current to drive the lamp, and varying (504) the duty cycle of the buck current during run-up to control (506) the current in the lamp is also disclosed.
    Type: Application
    Filed: September 28, 2001
    Publication date: April 3, 2003
    Inventors: Himamshu V. Prasad, Young G. Kang, John G. Konopka, Warren Moskowitz
  • Publication number: 20030052621
    Abstract: A ballast (10,20) for powering a gas discharge lamp load (30) comprises a protection circuit (300,600) operable to monitor an electrical signal (40) in the ballast and disable the ballast for at least a predetermined period of time in response to a disturbance wherein at least a portion (44) of the electrical signal (40) exhibits a time-rate-of-change that exceeds the time-rate-of-change of the signal during normal operation of the ballast and gas discharge lamp load. Protection circuit (300,600) is capable of disabling the ballast within a response time that is less than twice the period of the electrical signal. In a preferred embodiment that is suitable for ballasts with driven-type inverters, protection circuit (300) comprises a latching device (310) and a triggering circuit (330). In a preferred embodiment that is suitable for ballasts with self-oscillating type inverters, protection circuit (600) comprises a pull-down circuit (640) and a negative voltage source (610).
    Type: Application
    Filed: September 17, 2001
    Publication date: March 20, 2003
    Inventor: John G. Konopka