EINSTELLBARE STROMQUELLE UND EIN DIGITAL-ANALOGER WANDLER MIT AUTOMATISCHER EICHUNG UND VERWENDUNG EINER SOLCHEN QUELLE.

摘要

Adjustable current source comprising a bipolar transistor (BT) whose base receives a signal capable of fixing, approximately, the current crossing the transistor, and further comprising a MOS transistor (MT), in series with the bipolar transistor, whose gate (G) receives a setting signal stored by a capacitor (C) connected between its gate and its drain. This current source can be used to form the upper stages of an automatically calibrated digital convertor. ……