Patent ID: 9374006
Filing Date: 2016-06-21
CPC Classification: H02J,H02M,H03K

Claim Text:
1. A driver circuit for switching a supply voltage across as few as one load and as many as three loads, said circuit comprising: three non-contiguous high-voltage wells formed within a low-voltage monolithic silicon substrate; a high-side driver fabricated within each of the three high-voltage wells, each high-side driver having a separate logic input path for each of the high-side drivers, each input path comprising a logic signal input terminal, a signal amplifier, a noise filter, a pulse generator, and a high-voltage level shifter, in that order, wherein the signal amplifier, the noise filter, and the pulse generator of each path are positioned outside of the high-voltage well of their associated driver circuit, and the high-voltage level shifter, which has outputs that are coupled to the half-bridge control module, straddles the low-voltage substrate and the high-voltage well of its associated driver circuit; and an output terminal for each high-side driver, each output terminal coupled to its associated driver output through an output resistor bank having a resistance value that is set with a metal mask during manufacture.