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
Divot fill/repair apparatus
Method and system for utilizing a reserved channel to manage energy efficient network protocols
Vanilloid receptor ligands, pharmaceutical compositions containing them, process for making them, and use thereof for treating pain and other conditions
Aqueous pigment dispersion and aqueous ink for inkjet recording
Variety corn line LC6108
Application programming interface (API) for restoring a default scan list in a wireless communications receiver
Wafer dividing apparatus and laser processing apparatus
  Randomly Featured Patents
Land grid array or ball grid array type integrated circuit socket
Method and apparatus for television distribution system sweep testing
Communication system and communication method
Heat dissipator for display apparatus and plasma display apparatus including the heat dissipator
Handle for pet combs
Method for making a semiconductor device having a high-k dielectric layer and a metal gate electrode
Portable greenhouse
Device for controlling ignition timing of engine
Bio-analysis cartridge tracking and protection mechanism
Condom