Patent ID: 9649085
Date: 2017-05-16
CPC Classifications: A61B,H01F,H02H,H02J,H05G

Claim:
1. An inductive power transfer circuit comprising: an inductive rotating coupler that has a primary side and a secondary side; wherein the primary side is rotatably arranged against the secondary side, one of the primary side and the secondary side being a rotating part of said inductive rotating coupler, another of the primary side and the secondary side being a stationary part of said inductive rotating coupler; wherein the primary side includes at least a primary winding and a protective earth having a galvanic contact; wherein the secondary side includes at least a secondary winding; a rectifier connected to the secondary side; and a capacitor connected to the rectifier; wherein the secondary side further having a positive output and a negative output configured to deliver a DC voltage to a load at the secondary side; wherein one of the positive output and the negative output is connected to a secondary ground at the rotating part, which is further coupled via the galvanic contact to the protective earth at the primary side.