Douglas Kent Birlingmair
Engineers at Red Hawk Dr, Fort Collins, CO
License number
Colorado 36657
Issued Date
Jul 1, 2002
Renew Date
Nov 1, 2015
Expiration Date
Oct 31, 2017
Type
Professional Engineer
Address
Address
309 Red Hawk Dr, Fort Collins, CO 80524
Professional information
Voltage Sensing Device And Associated Method
US Patent:
7759959, Jul 20, 2010
Filed:
Dec 21, 2006
Appl. No.:
11/643062
Inventors:
Douglas K. Birlingmair - Fort Collins CO, US
Larry L. Adams - Windsor CO, US
Larry L. Adams - Windsor CO, US
Assignee:
Primary Integration, Inc. - Herndon VA
International Classification:
G01R 31/26
US Classification:
324765
Abstract:
A transformer circuit is disclosed that minimizes the temperature dependence of an output voltage. A first embodiment of the present invention includes a primary winding coupled to received a voltage to be sensed and a center-tapped secondary winding coupled at a center point to first voltage output terminal. The center-tapped secondary winding includes a first secondary winding and a second secondary winding, the secondary windings being coupled through a bridge circuit to a second voltage output terminal.
Voltage Sensing Device And Associated Method
US Patent:
2005007, Apr 14, 2005
Filed:
Oct 10, 2003
Appl. No.:
10/683920
Inventors:
Douglas Birlingmair - Fort Collins CO, US
Larry Adams - Windsor CO, US
Larry Adams - Windsor CO, US
International Classification:
G01R027/04
US Classification:
324658000
Abstract:
A transformer circuit is disclosed that minimizes the temperature dependence of an output voltage. A first embodiment of the present invention includes a primary winding coupled to receive a voltage to be sensed and a center-tapped secondary winding coupled at a center point to a first voltage output terminal. The center-tapped secondary winding includes a first secondary winding and a second secondary winding, the secondary windings being coupled through a bridge circuit to a second voltage output terminal. Details of this and other embodiments are disclosed.