dual voltage regulators

In the article `Integrated Voltage Regulators` (Elektor 11 and 12) positive and negative IC voltage regulators of both fixed and variable voltage types were discussed. This article is intended as a follow-up and looks at dual regulator I Cs (i.e. those that provide both a positive and a negative output). Practical designs are presented for laboratory power supplies providing up to ±30 Vat 2 A.