VOLTAGE REGULATORS

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VOLTAGE REGULATORS LECTURE 19
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LINEAR POWER SUPPLY
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YOU TUBE Voltage regulator tutorial USB gadget
charger circuit
http//www.youtube.com/watch?vGSzVs7_aW-Y
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2
3
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7805
120 VAC
120
5VDC OUT
7805 VOLTAGE REGULATOR 5VDC
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LM317 Adjustable Voltage Regulator Tutorial
http//www.youtube.com/watch?vIjJWWGPjc-w
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The output voltage of the LM317T is determined by
ratio of the two feedback resistors R1 and R2
which form a potential divider network across the
output terminal as shown below.
Adjustable Regulator
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Variable Voltage Power Supply
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LM 317 PACKAGE STYLES
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DIFFERENT PACKAGE TYPES FOR THE LM317
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TYPICAL HEAT SINK FOR POWER TRANSISTORS/VOLTAGE
REGULATORS
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UTILITIY SUBSTATION POWER SUPPLY