Control system for switching DC-DC voltage converter from buck operation mode to safe operation mode

摘要

A control system for transitioning a DC-DC voltage converter from a buck operational mode to a safe operational mode is provided. The DC-DC voltage converter has a DC-DC voltage converter control circuit with a high side integrated circuit and a low side integrated circuit. The high side integrated circuit has a first plurality of FET switches therein. The low side integrated circuit has a second plurality of FET switches therein. The control system includes a microcontroller having a digital input-output device, first and second applications, and a hardware abstraction layer. The first application sends a first command value to the hardware abstraction layer in order to transition the first and second plurality of FET switches to the open operational state.