ELECTROMAGNETIC DRIVE Russian patent published in 2009 - IPC H01F7/18 H01H47/32 

FIELD: electricity.

SUBSTANCE: invention is attributed to electric engineering and can be used for instance in high-speed automatic circuit-breakers. The drive comprises power source, exciting coil, electronic switch connected in parallel with exiting coil, diode connected in parallel with exiting coil and electromechanical relay terminals of which are connected in parallel with electronic switch.

EFFECT: elimination of voltage drop on semiconductor junction of electronic switch when the drive is switched on, absence of additional costs for maintenance of electromechanical relay terminals due to arcless commutation of exiting coil terminals by contacts of specified relay, increase in resistance to voltage sags of drive power supply, decrease in dimensions of electronic switch radiator.

1 dwg