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:
Jul. 08, 2003
Filed:
Apr. 02, 2002
Scott C. Willis, Manassas, VA (US);
Bae Systems Information and Electronic Systems Integration Inc., Nashua, NH (US);
Abstract
A bridge amplifier includes a first input node connectable to a power source having an input voltage, a second input node connectable to a control source having a control voltage, and a first and a second output node. A first amplifier module having a gain is coupled between the first and second input nodes and between the first and second output nodes, and a second amplifier module is coupled to the first input node and between the first and second output nodes. The first amplifier module compares a voltage differential between the first and second output nodes to the control voltage and provides an output voltage at the first output node necessary to maintain the voltage differential at a level substantially equal to a product of the control voltage multiplied by the gain. The second amplifier module compares a midpoint voltage level of the input voltage to a midpoint voltage level of the voltage differential and provides and output voltage at the second output node necessary to maintain the voltage differential midpoint level at a level substantially equal to the input voltage midpoint level.