Aldi battery charger.

[MSS]

Originally Posted by Avulon

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Above battery voltage? I'm sorry, but I don't believe that Apart from the alternator there aren't any other large inductors or Capacitors in our Cars. Which you'd need in order to multiply voltage. What do you think happens in the ign switch...?

Originally Posted by mss

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Don't forget that induced EMF = -N dPhi/dt = -LdI/dt which means that the amplitude of the induced transient (voltage spike) is proportional to the rate of change of current, not the size of the current. It takes very little energy from an induced transient to damage a CMOS circuit.

Perhaps the above will explain to you why that part of my post is relevant?

As you are determined not to try to achieve a real understanding of the situation, I will not bother to try and correct that!

Perhaps the textbook needs to be reread?