2023-03-30, 01:50 PM
Hello,
Pay attention to the voltage of the TVS diode protecting the 12V input (D201 in the diagram above). A 15V diode is too tight and risks shorting knowing that alternators can charge from 14.2 to 14.6V and that some LiFeYPO4 batteries could be charged at more than 15V according to their manufacturer's specification for increase their lifespan, which is confirmed by the endurance tests of these batteries. There is no risk in raising the threshold voltage of the TVS between 17 and 20V.
Pay attention to the voltage of the TVS diode protecting the 12V input (D201 in the diagram above). A 15V diode is too tight and risks shorting knowing that alternators can charge from 14.2 to 14.6V and that some LiFeYPO4 batteries could be charged at more than 15V according to their manufacturer's specification for increase their lifespan, which is confirmed by the endurance tests of these batteries. There is no risk in raising the threshold voltage of the TVS between 17 and 20V.