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Enlist names of regulator IC’s .

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Enlist names of regulator IC’s .
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1. Fixed Voltage Regulators IC - a. Positive voltage regulator IC’s - 78XX series eg. 7805, 7812 etc. 

b. Negative voltage regulator IC’s - 79XX series eg. 7905, 7912 etc. 

2. Adjustable Voltage Regulator - LM317 is example of positive adjustable voltage regulator.
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