BISTABLE ELECTROMAGNETIC ACTUATOR, CONTROL CIRCUIT FOR A DUAL COIL ELECTROMAGNETIC ACTUATOR, AND DUAL COIL ELECTROMAGNETIC ACTUATOR INCLUDING SUCH CONTROL CIRCUIT

摘要

The invention relates to a bistable electromagnetic actuator that comprises a magnetic circuit (12) including a magnetic yoke (20) in which a shunt (26) extends perpendicularly to a longitudinal axis (Y) of said yoke, and including a permanent magnet (14) provided between the first face (22) of the yoke and the shunt (26). A mobile core (16) is mounted so as to be capable of axial sliding between a latching position and a release position. A coil (30, 30A, 30B) extending between the shunt (26) and a second face (24) of the yoke generates a first control magnetic flow (fC1 ) for moving the mobile yoke (16) from the release position (PD) to the latching position (PA). A second control magnetic flow (fC2 ) allows the movement of the yoke (16) from the latching position to the release position (PD) under the action of a return spring (36, 37).