Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Driver circuit for a d.c. motor without commutator










Image Number 5 for United States Patent #5134682.

A method is disclosed for the low-loss regulation of a d.c. motor without commutator and of a semiconductor circuit in which, during a commutation phase at reduced motor power or rpm as given by a position indicator, the end transistors or one end transistor initially operates temporarily as a switch and thereafter temporarily as an analog amplifier element. During the analog period, a current is available which changes slowly according to a ramp function.








 
 
  Recently Added Patents
Method of applying a spherical correction to map data for rendering direction-of-travel paths on a wireless communications device
Spark plug
Treatment of cancer using the sodium salt of a benzoic acid derivative
Avoiding conflict in update in distributed environment employing multiple clients
Plants and seeds of hybrid corn variety CH367819
Method and apparatus for detecting an intermittent path to a storage system
Image processing apparatus, image processing system, and image processing method
  Randomly Featured Patents
Ceramic article having wear resistant coating
Multiple storage array control
Polyoxymethylene fibers, production thereof and use thereof
Connector for electrically connecting circuit boards
Gerotor pump having axial fluid transfer passages through the lobes
Laser diode
Liquid level detection apparatus
Insulating glass units
Illuminated tent stake
Information processing system and method, image processing system and method, information processing apparatus and computer readable memory