US Patent Issued to CHARGEPOINT on March 18 for "Single winding core-insensitive fluxgate current sensor" (California Inventor)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,547, issued on March 18, was assigned to CHARGEPOINT INC. (Campbell, Calif.).

"Single winding core-insensitive fluxgate current sensor" was invented by Ivan Baranov (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "An open-loop fluxgate-type current sensor is described. The current sensor includes a single winding around a core that combines drive and sense that is used as both an excitation source and a feedback element to measure current through a primary winding. The current sensor further includes an H-bridge driver to impress voltage to the single winding to cause current to saturate the core, the voltage being impressed with oppos...