TRANSFORMERLESS±12V_AT_15_mA

Published:2009/7/12 22:29:00 Author:May | From:SeekIC

Develaped to ρrovide bias voltage for six 741 opamps.Circuit connects ditectly across 120-V 60-Hz AC line.Article gives design procedure to meet performance requirements. For values shown, ripple is 1.1 V. Diode types are not critical.-C.Venditti, Build this Transformerless Low-Volt-age Supply, EDN Magazine, Feb. 5, 1977, p 102.



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