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
Gaze tracking password input method and device utilizing the same
Noise suppression in speech signals
Paper product with surface pattern
Monitoring system
Electronic device with a screen
Automatic portable electronic device configuration
Multipoint photonic doppler velocimetry using optical lens elements
  Randomly Featured Patents
Shampoo cape with splash guard
Hitch mountable cargo carrier
Non-HBr shallow trench isolation etch process
Optical memory element and manufacturing method thereof
Substituted N-cycloalkylmethyl-1H-pyrazolo(3,4-b)quinolin-4 amines and compositions and methods of use thereof
Tamper proof slide bolt locking apparatus
Anti-theft device for a vehicle
Content presentation device, content presentation method, and information storage medium
Liquid droplet ejection head and liquid droplet ejection apparatus
Acid fungal proteases