BIAS_SUPPLY_FOR_MICROWAVE_PREAMPS

Published:2009/7/8 23:07:00 Author:May | From:SeekIC

These two circuits provide bias for the microwave preamps shown in this text. The circuit in Fig.51-5(a) is a simple passive supply. Figures 51-5(b) and 51-5(c) are active supplies, with U1 generating a negative supply and Q1 setting the drain voltage and current, independent of GASFET haracteristics.



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