US 12,395,166 B2
Sensor communication discrete control considering EMC compliance for restraint control module
Stuart Koch, Southfield, MI (US); Vincent Colarossi, Southfield, MI (US); Nick Hunt, Southfield, MI (US); Michael Campbell, Southfield, MI (US); and Grant Scott, Southfield, MI (US)
Assigned to VEONEER US SAFETY SYSTEMS, LLC, Southfield, MI (US)
Filed by VEONEER US, INC., Southfield, MI (US)
Filed on Jun. 4, 2020, as Appl. No. 16/892,830.
Prior Publication US 2021/0380060 A1, Dec. 9, 2021
Int. Cl. H03K 17/16 (2006.01); B60R 21/015 (2006.01); H04L 12/40 (2006.01); H04L 67/12 (2022.01); H04Q 9/00 (2006.01)
CPC H03K 17/16 (2013.01) [B60R 21/01554 (2014.10); H04L 12/40 (2013.01); H04L 67/12 (2013.01); H04Q 9/00 (2013.01); H04L 2012/40273 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An electronic control unit comprising:
a Peripheral Sensor Interface 5 (PSI5) communications interface configured to communicate with a remote sensor using a current-modulated signal with PSI5 compliance upon a two-wire interconnection, the PSI5 communications interface including:
a signal driver configured to apply a signal voltage to a first signal terminal for driving current to the remote sensor via the two-wire interconnection;
a second signal terminal providing a return path for the current; and
a resistor within the return path of the PSI5 communications interface to induce a balance voltage on the second signal terminal, wherein the balance voltage has a magnitude corresponding to a magnitude of the signal voltage and an opposite polarity thereof, and wherein the resistor is defined by a drain-source on resistance of a field effect transistor having a gate terminal connected to the first signal terminal.