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Dual Regulated Supply from Single Voltage

Dual +/- Regulated Supply from Single Floating Voltage source Using Two Identical Regulators

  1. Dual Supply Using Virtual Ground Circuit

    Here's a variation on the previous Dual Supply circuit that uses an LM317 to generate 10V and then a LT1118 to provide a split virtual ground and supply ±5V.

    The circuit depends upon the unique sink/source characteristic of the LT1118 to carry any imbalanced ground current between the plus and minus loads.
    The advantage of this circuit is that the total plus and minus current can go to the 1.5A rating of the LM317, although the maximum imbalance between the plus and minus currents is...