Granted Patent
Utility
US 5,708,578 · App. 08/678,212
PWM inductive load bridge driver for dynamically mixing four and two quadrant chopping during PWM period off time
Inventors:
Robert J. Stoddard, Roger Peppiette
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Jul 11, 1996
Inventors
Robert J. Stoddard
Roger Peppiette
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.