Patents by Inventor Christian Ratcliffe

Christian Ratcliffe 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: 20250113420
    Abstract: A closed-loop current controller for regulating a current consumption of a load, comprising a current sensor for detecting a present current consumption of the load, a PWM modulator for modulating a PWM signal sent to the load and a controller for receiving an original reference signal representing a target current, the controller calculating an error signal based on a difference between the target current and the present current, the controller using an error-integrating algorithm that adjusts the original reference signal to produce a revised reference signal. The PWM modulator receives the revised reference signal and modulates the PWM signal sent to the load based in part on the revised reference signal.
    Type: Application
    Filed: June 18, 2024
    Publication date: April 3, 2025
    Inventors: Craig Aker, Jon Daniel Upton, Jennifer Upton, Christian Ratcliffe, Brandon E. Lambert, Elton Lee Ledbetter
  • Patent number: 12035430
    Abstract: A correlated color temperature (CCT) of one or more luminaires is controlled by obtaining a target CCT for the one or more luminaires and obtaining a first profile associated with a first luminaire of the one or more luminaires. A first target power for a first direct-current (DC) power input of the first luminaire and a second target power for a second DC power input of the first luminaire are calculated based on the target CCT and the first profile so that the first target power and the second target power drive the first luminaire to emit light at the target CCT. A first DC power supply is controlled to deliver the first target power to the first DC power input of the first luminaire and a second DC power supply is controlled to deliver the second target power to the second DC power input of the first luminaire.
    Type: Grant
    Filed: May 17, 2021
    Date of Patent: July 9, 2024
    Inventors: Jon Daniel Upton, Jennifer Upton, Christian Ratcliffe, Brandon E. Lambert, John Christopher Gowin, Elton Lee Ledbetter, Christopher Andrew Merts
  • Publication number: 20240163989
    Abstract: A correlated color temperature (CCT) of one or more luminaires is controlled by obtaining a target CCT for the one or more luminaires and obtaining a first profile associated with a first luminaire of the one or more luminaires. A first target power for a first direct-current (DC) power input of the first luminaire and a second target power for a second DC power input of the first luminaire are calculated based on the target CCT and the first profile so that the first target power and the second target power drive the first luminaire to emit light at the target CCT. A first DC power supply is controlled to deliver the first target power to the first DC power input of the first luminaire and a second DC power supply is controlled to deliver the second target power to the second DC power input of the first luminaire.
    Type: Application
    Filed: January 22, 2024
    Publication date: May 16, 2024
    Inventors: Jon Daniel Upton, Jennifer Upton, Christian Ratcliffe, Brandon E. Lambert, John Christopher Gowin, Elton Lee Ledbetter, Christopher Andrew Merts
  • Patent number: 11985741
    Abstract: A correlated color temperature (CCT) of one or more luminaires is controlled by obtaining a target CCT for the one or more luminaires and obtaining a first profile associated with a first luminaire of the one or more luminaires. A first target power for a first direct-current (DC) power input of the first luminaire and a second target power for a second DC power input of the first luminaire are calculated based on the target CCT and the first profile so that the first target power and the second target power drive the first luminaire to emit light at the target CCT. A first DC power supply is controlled to deliver the first target power to the first DC power input of the first luminaire and a second DC power supply is controlled to deliver the second target power to the second DC power input of the first luminaire.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: May 14, 2024
    Inventors: Jon Daniel Upton, Jennifer Upton, Christian Ratcliffe, Brandon E. Lambert, John Christopher Gowin, Elton Lee Ledbetter, Christopher Andrew Merts
  • Publication number: 20220279634
    Abstract: A correlated color temperature (CCT) of one or more luminaires is controlled by obtaining a target CCT for the one or more luminaires and obtaining a first profile associated with a first luminaire of the one or more luminaires. A first target power for a first direct-current (DC) power input of the first luminaire and a second target power for a second DC power input of the first luminaire are calculated based on the target CCT and the first profile so that the first target power and the second target power drive the first luminaire to emit light at the target CCT. A first DC power supply is controlled to deliver the first target power to the first DC power input of the first luminaire and a second DC power supply is controlled to deliver the second target power to the second DC power input of the first luminaire.
    Type: Application
    Filed: May 16, 2022
    Publication date: September 1, 2022
    Inventors: Jon Daniel Upton, Christian Ratcliffe, Brandon E. Lambert, Jennifer Upton, John Christopher Gowin, Elton Lee Ledbetter, Christopher Andrew Merts
  • Publication number: 20210360755
    Abstract: A correlated color temperature (CCT) of one or more luminaires is controlled by obtaining a target CCT for the one or more luminaires and obtaining a first profile associated with a first luminaire of the one or more luminaires. A first target power for a first direct-current (DC) power input of the first luminaire and a second target power for a second DC power input of the first luminaire are calculated based on the target CCT and the first profile so that the first target power and the second target power drive the first luminaire to emit light at the target CCT. A first DC power supply is controlled to deliver the first target power to the first DC power input of the first luminaire and a second DC power supply is controlled to deliver the second target power to the second DC power input of the first luminaire.
    Type: Application
    Filed: May 17, 2021
    Publication date: November 18, 2021
    Inventors: Jon Daniel Upton, Jennifer Upton, Christian Ratcliffe, Brandon E. Lambert, John Christopher Gowin, Elton Lee Ledbetter, Christopher Andrew Merts