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:
Sep. 10, 1996
Filed:
Jun. 01, 1995
Vijay Maddali, Rockford, IL (US);
John F Defenbaugh, Rockford, IL (US);
Hassan Mansir, Rockford, IL (US);
Sundstrand Corporation, Rockford, IL (US);
Abstract
A voltage regulator for a DC power generation system which is comprised of a prime mover driven generator producing an AC voltage output which is rectified to a DC voltage output for use by the system senses the AC voltage output and the DC voltage output, and selects the lower of these two for comparison with a voltage reference to produce a voltage error output signal for use in controlling the DC voltage output. The voltage regulator further comprises tuned compensation of the error output signal prior to use in controlling the DC voltage output. The tuned compensation comprises a proportional-integral lead-lag network. The voltage regulator additionally senses the AC current generated by the generator, and adjusts at least one zero location of the compensation network in response thereto to improve stability margins during light loading conditions, and to improve transient performance requirements under heavier loading conditions.