l_MA_CONSTANT_CURRENT_SCR_SOURCE

Published:2009/7/14 4:35:00 Author:May | From:SeekIC

Use of high-breakdown-voltage 2N1599 scr gives 0.25% regulation at 1 ma for input volt-ages of 10 to 400V. Output current can be adjusted up to 10%. Differential amplifier Q1-Q2 compares sampled output current with voltage across reference zener.-R. H. Crawford, 400-Volt SCR Constant-Current Source, EEE, 12:3, p74.



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