Patents by Inventor SIMPLEXGRINNELL LP

SIMPLEXGRINNELL LP 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).

  • COMPENSATION CIRCUIT FOR CURRENT PEAKING REDUCTION IN NOTIFICATION APPLIANCES
    Publication number: 20130093346
    Abstract: A system and apparatus to reduce current peaking in notification appliances are described. The apparatus may include a current peaking compensation circuit comprising two or more transistors and one or more capacitors configured to reduce a start-up frequency of a pulse-width modulated signal during a first time period and to add a time constant decaying voltage across a resistor divider network to increase a reference voltage during the first time period. Other embodiments are described and claimed.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 18, 2013
    Applicant: SIMPLEXGRINNELL LP
    Inventor: SIMPLEXGRINNELL LP