US 11,736,020 B2
Power supply system
Sebastian Blume, Eggelsberg (AT); Stefan Nesic, Eggelsberg (AT); and Djordje Vukovic, Eggelsberg (AT)
Assigned to B&R INDUSTRIAL AUTOMATION GMBH, Eggelsberg (AT)
Filed by B&R INDUSTRIAL AUTOMATION GMBH, Eggelsberg (AT)
Filed on Jul. 1, 2021, as Appl. No. 17/365,265.
Claims priority of application No. A 50569/2020 (AT), filed on Jul. 3, 2020.
Prior Publication US 2022/0006384 A1, Jan. 6, 2022
Int. Cl. H02M 3/28 (2006.01); H02P 27/06 (2006.01)
CPC H02M 3/28 (2013.01) [H02P 27/06 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A power supply system, comprising:
a rectifier designed to convert a mains AC voltage into a low input DC voltage;
a low voltage inverter connected to the rectifier and designed to convert the low input DC voltage into a low supply AC voltage;
a low voltage actuator, the low voltage inverter being connected to the low voltage actuator in order to supply the low voltage actuator with power via the low supply AC voltage;
a DC-DC converter that is connected to the rectifier and is designed to convert the low input DC voltage into an extra-low DC voltage;
an extra-low voltage inverter that is connected to the DC-DC converter and is designed to convert the extra-low DC voltage into an extra-low supply AC voltage; and
an extra-low voltage actuator connected to the extra-low voltage inverter,
wherein the extra-low voltage inverter is connected to supply power via the extra-low supply AC voltage to the extra-low voltage actuator, and
wherein the extra-low voltage inverter, the DC-DC converter and the low voltage inverter are designed to be bidirectional and are configured to transfer/feed-back excess power from the extra-low voltage actuator to the low voltage actuator or from the low voltage actuator to the extra-low actuator.