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LM10 Negative Regulator

LM10 Negative Regulator

It is possible to build a negative regulator using LM10 comparator and voltage reference IC. A transistor is employed to shift the reference current, increasing the minimum operating voltage to approximately 1.8V. The transistor should has high gain for better thermal stability, for example, gain = 100 will cause 1% drift over -55 to 125 °C temperature range. The gain of the selected transistor shown in the schematic diagram gives only 0.3%  drift over that temperature range with supply voltage between -10.5 to -30V.

Negative regulator B3ZFZ.gif

source: simplecircuitdiagram.com

Keywords : LM10, Negative, Regulator
Writer : nicola  |
8 Feb 2011 Tue   
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