Patent ID: 9627880
Date: 2017-04-18
CPC Classifications: B60L,H02H

Claim:
1. A system comprising: a first portion comprising one or more components configured to implement one or more safety functions of an application, wherein the one or more of the components of the first portion are rated to withstand a supply voltage up to a first voltage level without sustaining a reduction in component lifetime, wherein the one or more safety functions are associated with one or more safety goals, and wherein the one or more components of the first portion are powered by a power source; a second, different portion comprising one or more different components configured to activate a safety path in response to a detection of a voltage overstress in the first portion, wherein the one or more of the components of the second portion are rated to withstand a supply voltage up to a second voltage level without sustaining a reduction in component lifetime, wherein the second voltage level is greater than the first voltage level, wherein the one or more components of the second portion are powered by the same power source, and wherein by activating the safety path in response to the detection of the voltage overstress, the one or more safety goals are achieved; and a third, different portion comprising one or more different components configured to electrically couple the first portion to the second portion and to prevent the voltage overstress from propagating from the first portion to the second portion.