| 摘要 |
A current generator arrangement for use, e.g., in 1-10V interfaces for li ghting systems, includes at least one transistor (Q3) having a base-emitter junction wherein the voltage drop across the base-emitter junction defines t he intensity of the output current and wherein the base-emitter junction is exposed to temperature drift. A resistive network (Req2) is coupled to the t ransistor (Q3), whereby the intensity of the output current is a function of both the voltage drop across the base-emitter junction of the transistor (Q 3) and the resistance value of the resistive network (Req2). The resistive n etwork (Req2) includes at least one resistor element (NTC3; NTC4) whose resi stance value varies with temperature to keep constant the intensity of the o utput current irrespective of any temperature drift in the voltage drop acro ss the base-emitter junction of the transistor (Q3).
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