The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2014
Filed:
Jul. 18, 2011
Barry F. Waltman, Bothell, WA (US);
Rodney Alan Hughes, Tacoma, WA (US);
Reid Adriance, Mill Creek, WA (US);
Bertrand Nkei, Redmond, WA (US);
Jay Allen Kuehny, Sammamish, WA (US);
Barry F. Waltman, Bothell, WA (US);
Rodney Alan Hughes, Tacoma, WA (US);
Reid Adriance, Mill Creek, WA (US);
Bertrand Nkei, Redmond, WA (US);
Jay Allen Kuehny, Sammamish, WA (US);
Crane Electronics, Inc., Redmond, WA (US);
Abstract
Control circuitry handles inrush current, and may provide under voltage and/or over voltage monitoring and handling, as well as remote enable handling. The circuitry may advantageously employ a sense capacitor in parallel with an input capacitor (e.g., bulk input filter capacitor), and a current mirror to produce a signal proportional to input current. A clamp circuit may control a series pass device to regulate current in response to the proportional signal, or to interrupt current flow in response to an under voltage or over voltage condition or receipt of a signal indicative of a disable state. An enable signal may be summed into a comparator that handles under voltage condition determination.