1. moshetez

    Bosch Relay mystery

    I was looking through the Bosch automotive relay catalog and I noticed the amperage rating is two figures e.g 20/30A. Initially, I was confused and after a bit of research, all sources I came across seemed to agree that the larger figures corresponds with the NO contact of an SPDT relay. That's...
  2. M

    Help to understand the operating logic of the Bosch charger

    hi, I ask for your help to: determine, if possible, the type of transistor T5, T7 (SMD code: MK3C). help me to understand the operating role of the set T5, T7 and R23, R33 in the circuit (it's like a logical port type AND, but I do not understand how it works). help me understand why the...