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LM317S/NOPB Arkusz danych(PDF) 25 Page - Texas Instruments |
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LM317S/NOPB Arkusz danych(HTML) 25 Page - Texas Instruments |
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25 / 48 page ![]() LM317-N LM317-N LM317-N LM117, LM317-N www.ti.com SNVS774P – MAY 2004 – REVISED OCTOBER 2015 Typical Applications (continued) 9.2.15 Adjustable 4-A Regulator Using three LM317-N devices in parallel increases load current capability (Figure 33). Output voltage is set by the variable resistor tied to the non-inverting terminal of the operational amplifier, and reference current to the transistor is developed across the 100 Ω resistor. When output voltage rises, the operational amplifier corrects by drawing current from the base, closing the transistor. This effectively pulls ADJ down and lowers the output voltage through negative feedback. Figure 33. Adjustable 4-A Regulator Copyright © 2004–2015, Texas Instruments Incorporated Submit Documentation Feedback 25 Product Folder Links: LM117 LM317-N |
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