Heterogeneous fuel injector driver topologies

Abstract

An apparatus includes a housing containing a microcontroller and injector driver circuitry including a first integrated circuit operatively coupled with and controllable by the microcontroller, a first plurality of switching devices operatively coupled with and controllable by the first integrated circuit, second injector driver circuitry including a second integrated circuit operatively coupled with and controllable by the microcontroller and a second plurality of switching devices operatively coupled with and controllable by the second integrated circuit and third injector driver circuitry comprising a third integrated circuit operatively coupled with and controllable by the microcontroller and a third plurality of switching devices operatively coupled with and controllable by the third integrated circuit. Each of the first, second, and third pluralities of switching devices includes a set of switches configured to drive a respective bank of multiple boosted injectors one or more sets of switches configured to drive a respective single unboosted injector.