12_37V_AT_15A

Published:2009/7/19 20:49:00 Author:Jessie | From:SeekIC

Uses National LM317 adjustable three-terminal positive voltage regulator. Output voltage is determined by ratio of R1 and R2. Output can be adjusted from 37 V down to 1.2V with R2. If DC input is 40V, regulation is about 0.1% at all settings when going from no load to full load. Regulator includes overload and thermal protection. If current limit is exceeded, regulator shuts down. C2 and C3 are optional; C2 improves ripple rejection, and ca prevents instability when load capacitance is between 500 and 5000 pF.-Adjustable Bench Supply, 73Magazine, Dec. 1977, p 192-193



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