US 12,341,413 B2
Monitoring device for a power converter, associated monitoring system, power supply system and method
Franck Terrien, Belfort (FR)
Assigned to GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwicksire (GB)
Filed by GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED, Warwicksire (GB)
Filed on Jul. 21, 2023, as Appl. No. 18/356,869.
Claims priority of application No. 22187270 (EP), filed on Jul. 27, 2022.
Prior Publication US 2024/0039386 A1, Feb. 1, 2024
Int. Cl. H02M 1/00 (2007.01); H02M 1/36 (2007.01); H03K 17/0812 (2006.01); H03K 19/21 (2006.01)
CPC H02M 1/0041 (2021.05) [H02M 1/36 (2013.01); H03K 17/0812 (2013.01); H03K 19/21 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for monitoring a control signal received by a power converter, the control signal controlling switches of the power converter to supply an electrical load, characterized in that the method comprises:
receiving by the power converter the control signal comprising a merging of a first variable signal and a clock signal having a predetermined frequency greater than the first variable signal, the first variable signal comprising instructions to control the switches, wherein as the control signal comprises the clock signal, a state of the control signal changes at least one time every period,
determining if a change of state of the control signal occurs during each period associated to the predetermined frequency, and
if a change of state of the control signal does not occur during one period, stopping the transmission of the control signal to the power converter so that the power converter stops to supply the electrical load according to the instructions of the first variable signal.