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
Systems and methods for simultaneously configuring multiple independent backups
Servomotor control circuit
Depth estimation apparatus and method
Semiconductor memory device and manufacturing method thereof
Automatic setup of reflector instances
Gaze tracking password input method and device utilizing the same
Push to release cover for a portable electronic device
  Randomly Featured Patents
Gun grip template
Sensor housing
Reclining chair with back and footrest adjustable in position at the same time
Three-passage valve
Epoxy resin composition
Content providing area presentation system
Imaging device
Beverage container pouch
Method of treating oil or gas well with biodegradable emulsion
Spoon tip