Porsche 914 Upgrade Project - 29 - The Charging System Part 2

[@jensschroder8214]

Don't forget the freewheeling diode for the relay. When the relay is switched off, a voltage spike occurs. Use three diodes. One from the ignition lock in the direction of the arrow to the relay, one from the charging module in the direction of the arrow to the relay, the third diode from minus in the direction of the arrow to the relay. So all diode rings point to the plus of the relay. The third diode has the anode at minus of the relay. This will savely reduce the voltage spike.

[@MikesTropicalTech]

Thanks for that! I remember I had one across the contactor coil in the first version of the car in 2009.

[@janiyaalessandra6835]

Promo*SM 😃