Integrated on-chip/in-package transformer driver for can applications

Abstract

An integrated circuit (IC) for driving a Controller Area Network (CAN) bus is provided. The IC may include a push-pull transformer having a primary winding split into two halves with a center tap and a secondary winding split into two halves, an energy pump circuit coupled to the primary winding, the energy pump circuit including a first transistor and a second transistor alternately switching to drive the primary winding, at least two diodes coupled to the secondary winding to perform full-wave rectification of an alternating current (AC) voltage induced in the secondary winding, and a smoothing capacitor coupled to the secondary winding to filter the rectified voltage into a steady direct current (DC) output for driving the CAN bus.

Dependencies are inferred from the claim text.