Michael A Hanson

US Patent:

59201622, Jul 6, 1999

Filed:

Aug 5, 1996

Appl. No.:

8/695148

Inventors:

Michael J. Hanson - Loves Park IL
Gregory I. Rozman - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

A63B 6910

US Classification:

318254

Abstract:

A motor generator system in accordance with the invention includes a prime mover (21) for driving an output shaft (18); a main motor generator (16, 105), having a rotor driven by the output shaft, for producing electrical power on a plurality of stator phase windings (36a-36c) in response to the prime mover rotating the output shaft and for driving the output shaft in response to operation as a motor, an exciter (14, 102), having a rotor driven by the output shaft, for applying excitation to a field winding (34) of the main motor generator during operation for producing electrical power on the plurality of phase windings and for applying current to the field winding of the main motor generator to produce a magnetic field in the field winding during operation of the main motor generator as a motor, a time varying signal source (200) for applying a time varying signal having a fundamental frequency 202 to a field winding (28) of the exciter, a main inverter (114), responsive to signal (302) representing a rotary position of the rotor of the main motor generator, for commutating application of current to the at least one of the plurality of phase windings to control operation of the main motor generator during operation as a motor while simultaneously maintaining one of the plurality of phase windings in a non-commutated stated in which no current is cause to flow therein by the main inverter, circuitry (300), coupled to the stator phase winding maintained in the non-commutated state, for detecting an amplitude modulation of voltage across the non-commutated phase winding at twice the fundamental frequency representing the rotary position of the rotor of the main motor generator and producing the rotor position signal in response to the detected amplitude modulation to control commutation of current in at least one of the plurality of stator phase windings.

US Patent:

56891750, Nov 18, 1997

Filed:

May 31, 1996

Appl. No.:

8/657919

Inventors:

Michael J. Hanson - Loves Park IL
Scott R. Myers - Rockford IL
Frank Joseph Ludicky - Machesney Park IL
Donald G. Kilroy - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

H02J 724

US Classification:

322 28

Abstract:

A digital voltage regulator for an electrical power system including a permanent magnet generator (PMG), an exciter, and a main generator. A controller multiplies the frequency of the generator output voltage by a predetermined value to provide a sampling signal having the multiplied frequency and synchronized with the generator output voltage. The controller also provides a sawtooth voltage signal having a repetition rate equal to the frequency of the sampling signal and an incrementing rate determined by the system clock signal. The generator output voltage is sampled at the frequency of the sampling signal. When the difference between the sampled signal and a reference voltage is greater than the sawtooth voltage, the PMG voltage is switched to provide voltage for the exciter field winding.

US Patent:

53630327, Nov 8, 1994

Filed:

May 12, 1993

Appl. No.:

8/061168

Inventors:

Michael J. Hanson - Loves Park IL
Gregory I. Rozman - Rockford IL

Assignee:

Sundstrand Corporation - Rockford IL

International Classification:

F02N 1104

US Classification:

322 10

Abstract:

A synchronous generator usable in both a starting mode of operation and a generating mode of operation includes a permanent magnet generator having a permanent magnet and an armature winding rotatable with respect to the permanent magnet, an exciter portion having an exciter armature winding and an exciter field winding rotatable with respect to the exciter armature winding, and a main generator portion having a main generator armature winding and a main generator field winding rotatable with respect to the main generator armature winding. An inverter is coupled to supply power to the main generator portion armature winding via a DC link during the starting mode of operation, and an inverter controller includes a position sensing circuit that generates a rotor position signal based upon the differential reluctance between pairs of phase windings in the main generator portion armature winding.

US Patent:

20160149380, May 26, 2016

Filed:

Nov 20, 2014

Appl. No.:

14/548637

Inventors:

- Charlotte NC, US
Robert C. Cooney - Janesville WI, US
Michael J. Hanson - Rockford IL, US
Donald G. Kilroy - Rockford IL, US
Christian Miller - Beloit WI, US

International Classification:

H02B 1/04

Abstract:

A power control system includes a circuit board, a bus bar, and a distribution bar. The bus bar is connected to the circuit board and configured to receive input power from an external power source. The distribution bar is connected to receive the input power from the bus bar. The distribution bar includes a first section connectable to the bus bar to receive the input power, a second section configured to carry the input power from the first section, a third section connectable to the circuit board, and a power switch connected to the second section and configured to selectively distribute the input power as output power to at least one load. The first section and the third section extend away from the second section.