US 11,733,285 B2
Touch safe DC powering for remote loads
Rifat Siddique, Burnaby (CA); Andres Bianchi, Burnaby (CA); Peter Ksiazek, Burnaby (CA); and Glenn Lumanog, Surrey (CA)
Assigned to Alpha Technologies Ltd., British Columbia (CA)
Filed by ALPHA TECHNOLOGIES LTD., Burnaby (CA)
Filed on Jun. 5, 2020, as Appl. No. 16/894,241.
Prior Publication US 2021/0382102 A1, Dec. 9, 2021
Int. Cl. G01R 31/08 (2020.01); G01R 31/28 (2006.01); G01R 31/52 (2020.01); H02H 3/44 (2006.01); H02H 7/12 (2006.01); H02M 1/00 (2006.01)
CPC G01R 31/085 (2013.01) [G01R 31/088 (2013.01); G01R 31/2879 (2013.01); G01R 31/52 (2020.01); H02H 3/445 (2013.01); H02H 7/1213 (2013.01); H02M 1/0009 (2021.05)] 7 Claims
OG exemplary drawing
 
1. A system for providing DC power to a remote load over a transmission line comprising:
a source power supply supplying DC power to the transmission line;
a power conditioning system for receiving power from the transmission line and supplying power to the load, said power conditioning system limiting a rate of change of current drawn from the transmission line to a maximum rate of change; and,
said source power supply configured to reduce its supply of power to the transmission line upon detecting that a rate of change of current drawn by the transmission line is in excess of said maximum rate of change.