US 12,255,016 B2
Magnetic actuator, valve arrangement and method
Uwe Kirsamer, Weilheim (DE)
Assigned to Festo SE & Co. KG, Esslingen (DE)
Filed by Festo SE & Co. KG, Esslingen (DE)
Filed on Jan. 9, 2023, as Appl. No. 18/094,489.
Claims priority of application No. 10 2022 200 152.4 (DE), filed on Jan. 10, 2022.
Prior Publication US 2023/0223178 A1, Jul. 13, 2023
Int. Cl. H01F 7/06 (2006.01); F16K 31/06 (2006.01)
CPC H01F 7/064 (2013.01) [F16K 31/0675 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A magnetic actuator having an actuator element, a coil for actuating the actuator element, and a circuit for energizing the coil, the circuit having a supply voltage input to which a supply voltage is applicable for energizing the coil, and the circuit being configured to provide, during a holding current reduction phase, a clocked energization of the coil,
wherein the circuit comprises a voltage divider connected in parallel to the supply voltage input and configured to provide an intermediate voltage, and wherein the circuit is configured to adjust, during the holding current reduction phase, the duty cycle based on the intermediate voltage, and
wherein the voltage divider comprises a first diode.