Patents by Inventor Clayton Kling Philips Handleman

Clayton Kling Philips Handleman 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).

  • Inverter circuit and method of operation
    Patent number: 6339538
    Abstract: An inverter includes a first switch to disconnect an output of the inverter from any device connected thereto; a second switch to disconnect and connect an input of the inverter from direct current fed to the inverter; a discharge device to discharge any residual charge on a large capacitor; a voltage sensor to measure input DC voltage to the inverter; a current sensor to measure input DC current to the inverter; and a data recorder to provide a current voltage trace to provide a current-voltage curve tracer to provide current-voltage curve data that may then be used to calibrate a maximum power point tracker or alternatively sense array shading.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: January 15, 2002
    Inventor: Clayton Kling Philips Handleman
  • Inverter integrated instrumentation having a current-voltage curve tracer
    Patent number: 6111767
    Abstract: An inverter includes a first switch to disconnect an output of the inverter from any device connected thereto, a second switch to disconnect and connect an input of the inverter from direct current fed to the inverter, and a discharge device to discharge any residual charge on a large capacitor. The inverter further includes a voltage sensor to measure input DC voltage to the inverter, a current sensor to measure input DC current to the inverter and a data recorder to provide a current voltage trace to provide a current-voltage curve tracer to provide current-voltage properties of the solar array to which the inverter is attached. The inverter is capable of reproducibly operating at the same point on a module IV curve for a given set of temperature and irradiance conditions.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: August 29, 2000
    Assignee: Heliotronics, Inc.
    Inventor: Clayton Kling Philips Handleman