US Patent 9551751 High speed controllable load

Patent 9551751 was granted and assigned to UL (safety organization) on January, 2017 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Current Assignee

UL (safety organization)

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

9551751

Patent Inventor Names

Paul W. Brazis, Jr.0

Date of Patent

January 24, 2017

Patent Application Number

13160710

Date Filed

June 15, 2011

Patent Primary Examiner

‌

Thomas Valone

Patent abstract

A high speed controllable load uses a voltage waveform synthesizer and a driver circuit to dynamically control an electronically variable load to generate a current though an arc fault circuit interrupter (AFCI) device under test. Sensors may be used to monitor a source voltage and the output current to generate an arbitrary waveform have a range of voltage and current phase shifts. An optical isolation circuit allows separation of grounds between a control stage and the AFCI device under test.