US 11,784,482 B2
Electrical connection monitoring using cable shielding
Guan Che Ting, San Jose, CA (US); Seanpatrick D. O'Hern, Santa Clara, CA (US); Venus K. Garg, Pleasanton, CA (US); Andrew J. McDowell, Menlo Park, CA (US); and Matteo Telli, Pleasanton, CA (US)
Assigned to APPLE INC., Cupertino, CA (US)
Filed by Guan Che Ting, San Jose, CA (US); Seanpatrick D. O'Hern, Santa Clara, CA (US); Venus K. Garg, Pleasanton, CA (US); Andrew J. McDowell, Menlo Park, CA (US); and Matteo Telli, Pleasanton, CA (US)
Filed on Oct. 20, 2020, as Appl. No. 17/75,231.
Prior Publication US 2022/0123542 A1, Apr. 21, 2022
Int. Cl. H02H 1/00 (2006.01); G01R 31/54 (2020.01); B60R 16/02 (2006.01); B60R 16/03 (2006.01); G01R 31/00 (2006.01); H02H 7/22 (2006.01); H01B 9/02 (2006.01)
CPC H02H 1/0007 (2013.01) [B60R 16/0215 (2013.01); B60R 16/03 (2013.01); G01R 31/006 (2013.01); G01R 31/54 (2020.01); H02H 7/228 (2013.01); H01B 9/028 (2013.01)] 19 Claims
OG exemplary drawing
 
10. A system comprising:
a high-voltage power supply;
a high-voltage cable including a conductor connected to the high-voltage power supply and a shielding that encircles the conductor; and
a continuity detection circuit connected to the shielding, wherein the high-voltage power supply is part of a vehicle including a chassis that is coupled to a ground node of the continuity detection circuit and the continuity detection circuit is connected to the shielding at a first end of the high-voltage cable and the shielding is coupled to the chassis at a second end of the high-voltage cable, and wherein the continuity detection circuit is configured to drive current through the shielding that returns via the chassis, and wherein the continuity detection circuit has direct current isolation from the chassis and from a ground node of the high-voltage power supply.