Duka-Hilfe (für Belichtungszeit)

Nearly all stabilised power supplies use a series regulator transistor. The dissipation in this transistor increases with increasing load current and with increasing volt- age across it. This means that it is often necessary to use several tran- sistors in parallel for the series regulator, and to incorporate a large heatsink - certainly if the power supply is to have a variable output voltage at high output currents (lab power supply).