lm317 spændings stabilisator

 

 

1.43V R1 = 470, R2 = 68
1.47V R1 = 470, R2 = 82
1.48V R1 = 370, R2 = 68
1.51V R1 = 330, R2 = 68
1.51V R1 = 390, R2 = 82
1.52V R1 = 470, R2 = 100
1.53V R1 = 370, R2 = 82
1.56V R1 = 330, R2 = 82
1.57V R1 = 270, R2 = 68
1.57V R1 = 470, R2 = 120
1.57V R1 = 390, R2 = 100
1.59V R1 = 370, R2 = 100
1.60V R1 = 240, R2 = 68
1.63V R1 = 330, R2 = 100
1.63V R1 = 270, R2 = 82
1.64V R1 = 390, R2 = 120
1.64V R1 = 220, R2 = 68
1.65V R1 = 470, R2 = 150
1.66V R1 = 370, R2 = 120
1.68V R1 = 240, R2 = 82
1.71V R1 = 330, R2 = 120
1.71V R1 = 270, R2 = 100
1.72V R1 = 220, R2 = 82
1.72V R1 = 180, R2 = 68
1.73V R1 = 470, R2 = 180
1.73V R1 = 390, R2 = 150
1.76V R1 = 370, R2 = 150
1.77V R1 = 240, R2 = 100
1.81V R1 = 270, R2 = 120
1.82V R1 = 150, R2 = 68
1.82V R1 = 330, R2 = 150
1.82V R1 = 180, R2 = 82
1.83V R1 = 390, R2 = 180
1.84V R1 = 470, R2 = 220
1.86V R1 = 370, R2 = 180
1.88V R1 = 240, R2 = 120
1.89V R1 = 470, R2 = 240
1.93V R1 = 330, R2 = 180
1.93V R1 = 150, R2 = 82
1.94V R1 = 270, R2 = 150
1.96V R1 = 390, R2 = 220
1.97V R1 = 470, R2 = 270
1.99V R1 = 370, R2 = 220
2.02V R1 = 390, R2 = 240
2.03V R1 = 240, R2 = 150
2.06V R1 = 370, R2 = 240
2.08V R1 = 330, R2 = 220
2.10V R1 = 220, R2 = 150
2.12V R1 = 390, R2 = 270
2.13V R1 = 470, R2 = 330
2.16V R1 = 330, R2 = 240
2.16V R1 = 370, R2 = 270
2.19V R1 = 240, R2 = 180
2.23V R1 = 470, R2 = 370
2.25V R1 = 150, R2 = 120
2.27V R1 = 270, R2 = 220
2.27V R1 = 330, R2 = 270
2.29V R1 = 470, R2 = 390
2.29V R1 = 180, R2 = 150
2.31V R1 = 390, R2 = 330
2.36V R1 = 270, R2 = 240
2.37V R1 = 370, R2 = 330
2.40V R1 = 240, R2 = 220
2.44V R1 = 390, R2 = 370
2.50V R1 = 470, R2 = 470
2.57V R1 = 370, R2 = 390
2.61V R1 = 220, R2 = 240
2.65V R1 = 330, R2 = 370
2.66V R1 = 240, R2 = 270
2.73V R1 = 330, R2 = 390
2.74V R1 = 470, R2 = 560
2.75V R1 = 150, R2 = 180
2.76V R1 = 390, R2 = 470
2.78V R1 = 270, R2 = 330
2.78V R1 = 220, R2 = 270
2.84V R1 = 370, R2 = 470
2.92V R1 = 180, R2 = 240
2.96V R1 = 270, R2 = 370
2.97V R1 = 240, R2 = 330
3.03V R1 = 330, R2 = 470
3.05V R1 = 390, R2 = 560
3.06V R1 = 270, R2 = 390
3.06V R1 = 470, R2 = 680
3.08V R1 = 150, R2 = 220
3.13V R1 = 220, R2 = 330
3.14V R1 = 370, R2 = 560
3.18V R1 = 240, R2 = 370
3.25V R1 = 150, R2 = 240
3.28V R1 = 240, R2 = 390
3.35V R1 = 220, R2 = 370
3.37V R1 = 330, R2 = 560
3.43V R1 = 270, R2 = 470
3.43V R1 = 390, R2 = 680
3.43V R1 = 470, R2 = 820
3.47V R1 = 220, R2 = 390
3.50V R1 = 150, R2 = 270
3.54V R1 = 180, R2 = 330
3.55V R1 = 370, R2 = 680
3.70V R1 = 240, R2 = 470
3.82V R1 = 180, R2 = 370
3.83V R1 = 330, R2 = 680
3.84V R1 = 270, R2 = 560
3.88V R1 = 390, R2 = 820
3.91V R1 = 470, R2 = 1000
3.92V R1 = 220, R2 = 470
3.96V R1 = 180, R2 = 390
4.00V R1 = 150, R2 = 330
4.02V R1 = 370, R2 = 820
4.17V R1 = 240, R2 = 560
4.33V R1 = 150, R2 = 370
4.36V R1 = 330, R2 = 820
4.40V R1 = 270, R2 = 680
4.43V R1 = 220, R2 = 560
4.44V R1 = 470, R2 = 1200
4.46V R1 = 390, R2 = 1000
4.50V R1 = 150, R2 = 390
4.51V R1 = 180, R2 = 470
4.63V R1 = 370, R2 = 1000
4.79V R1 = 240, R2 = 680
5.04V R1 = 330, R2 = 1000
5.05V R1 = 270, R2 = 820
5.10V R1 = 390, R2 = 1200
5.11V R1 = 220, R2 = 680
5.14V R1 = 180, R2 = 560
5.17V R1 = 150, R2 = 470
5.24V R1 = 470, R2 = 1500
5.30V R1 = 370, R2 = 1200
5.52V R1 = 240, R2 = 820
5.80V R1 = 330, R2 = 1200
5.88V R1 = 270, R2 = 1000
5.91V R1 = 220, R2 = 820
5.92V R1 = 150, R2 = 560
5.97V R1 = 180, R2 = 680
6.04V R1 = 470, R2 = 1800
6.06V R1 = 390, R2 = 1500
6.32V R1 = 370, R2 = 1500
6.46V R1 = 240, R2 = 1000
6.81V R1 = 270, R2 = 1200
6.92V R1 = 150, R2 = 680
6.93V R1 = 330, R2 = 1500
6.94V R1 = 180, R2 = 820
7.02V R1 = 390, R2 = 1800
7.10V R1 = 470, R2 = 2200
7.33V R1 = 370, R2 = 1800
7.50V R1 = 240, R2 = 1200
8.07V R1 = 330, R2 = 1800
8.08V R1 = 150, R2 = 820
8.19V R1 = 270, R2 = 1500
8.30V R1 = 390, R2 = 2200
8.43V R1 = 470, R2 = 2700
8.68V R1 = 370, R2 = 2200
9.06V R1 = 240, R2 = 1500
9.58V R1 = 330, R2 = 2200
9.77V R1 = 220, R2 = 1500
9.90V R1 = 390, R2 = 2700
10.03V R1 = 470, R2 = 3300
10.37V R1 = 370, R2 = 2700
10.63V R1 = 240, R2 = 1800
11.25V R1 = 150, R2 = 1200
11.44V R1 = 270, R2 = 2200
11.48V R1 = 330, R2 = 2700
11.67V R1 = 180, R2 = 1500
11.83V R1 = 390, R2 = 3300
12.40V R1 = 370, R2 = 3300
12.71V R1 = 240, R2 = 2200
13.75V R1 = 330, R2 = 3300
15.31V R1 = 240, R2 = 2700
16.25V R1 = 150, R2 = 1800
16.53V R1 = 270, R2 = 3300
16.59V R1 = 220, R2 = 2700
18.44V R1 = 240, R2 = 3300
19.58V R1 = 150, R2 = 2200
20.00V R1 = 220, R2 = 3300
23.75V R1 = 150, R2 = 2700
24.17V R1 = 180, R2 = 3300
28.75V R1 = 150, R2 = 3300

LM317 tåler maks 40 volt indgagsspænding. Udgangs spændingen kan justeres fra 1,2 volt til 37 volt.

Udgangsspænding ændres ved at ændre værdien af R2, større modstand giver højere udgangs spænding.

VOUTPUT = 1.25 * ( 1 + R2/R1 )

F.eks. vil en modstand på 680 ohm give 4,79 volt ud og 2k2 vil give 12,71 volt. Hvis der trækkes højere strømme anbefales det at montere LM317 på en køleplade, eller et stykke aluminiums profil. LM317 kan maksimalt levere 1,5 ampere.

Når man har offgrid solcellepaneler der oplader nogle batterier, er det en fordel at kan regulere lidt på spændingen, det er her LM317 er en godt og stabil strømforsyning.

 
image

 

1.43V R1 = 470, R2 = 68
1.47V R1 = 470, R2 = 82
1.48V R1 = 370, R2 = 68
1.51V R1 = 330, R2 = 68
1.51V R1 = 390, R2 = 82
1.52V R1 = 470, R2 = 100
1.53V R1 = 370, R2 = 82
1.56V R1 = 330, R2 = 82
1.57V R1 = 270, R2 = 68
1.57V R1 = 470, R2 = 120
1.57V R1 = 390, R2 = 100
1.59V R1 = 370, R2 = 100
1.60V R1 = 240, R2 = 68
1.63V R1 = 330, R2 = 100
1.63V R1 = 270, R2 = 82
1.64V R1 = 390, R2 = 120
1.64V R1 = 220, R2 = 68
1.65V R1 = 470, R2 = 150
1.66V R1 = 370, R2 = 120
1.68V R1 = 240, R2 = 82
1.71V R1 = 330, R2 = 120
1.71V R1 = 270, R2 = 100
1.72V R1 = 220, R2 = 82
1.72V R1 = 180, R2 = 68
1.73V R1 = 470, R2 = 180
1.73V R1 = 390, R2 = 150
1.76V R1 = 370, R2 = 150
1.77V R1 = 240, R2 = 100
1.81V R1 = 270, R2 = 120
1.82V R1 = 150, R2 = 68
1.82V R1 = 330, R2 = 150
1.82V R1 = 180, R2 = 82
1.83V R1 = 390, R2 = 180
1.84V R1 = 470, R2 = 220
1.86V R1 = 370, R2 = 180
1.88V R1 = 240, R2 = 120
1.89V R1 = 470, R2 = 240
1.93V R1 = 330, R2 = 180
1.93V R1 = 150, R2 = 82
1.94V R1 = 270, R2 = 150
1.96V R1 = 390, R2 = 220
1.97V R1 = 470, R2 = 270
1.99V R1 = 370, R2 = 220
2.02V R1 = 390, R2 = 240
2.03V R1 = 240, R2 = 150
2.06V R1 = 370, R2 = 240
2.08V R1 = 330, R2 = 220
2.10V R1 = 220, R2 = 150
2.12V R1 = 390, R2 = 270
2.13V R1 = 470, R2 = 330
2.16V R1 = 330, R2 = 240
2.16V R1 = 370, R2 = 270
2.19V R1 = 240, R2 = 180
2.23V R1 = 470, R2 = 370
2.25V R1 = 150, R2 = 120
2.27V R1 = 270, R2 = 220
2.27V R1 = 330, R2 = 270
2.29V R1 = 470, R2 = 390
2.29V R1 = 180, R2 = 150
2.31V R1 = 390, R2 = 330
2.36V R1 = 270, R2 = 240
2.37V R1 = 370, R2 = 330
2.40V R1 = 240, R2 = 220
2.44V R1 = 390, R2 = 370
2.50V R1 = 470, R2 = 470
2.57V R1 = 370, R2 = 390
2.61V R1 = 220, R2 = 240
2.65V R1 = 330, R2 = 370
2.66V R1 = 240, R2 = 270
2.73V R1 = 330, R2 = 390
2.74V R1 = 470, R2 = 560
2.75V R1 = 150, R2 = 180
2.76V R1 = 390, R2 = 470
2.78V R1 = 270, R2 = 330
2.78V R1 = 220, R2 = 270
2.84V R1 = 370, R2 = 470
2.92V R1 = 180, R2 = 240
2.96V R1 = 270, R2 = 370
2.97V R1 = 240, R2 = 330
3.03V R1 = 330, R2 = 470
3.05V R1 = 390, R2 = 560
3.06V R1 = 270, R2 = 390
3.06V R1 = 470, R2 = 680
3.08V R1 = 150, R2 = 220
3.13V R1 = 220, R2 = 330
3.14V R1 = 370, R2 = 560
3.18V R1 = 240, R2 = 370
3.25V R1 = 150, R2 = 240
3.28V R1 = 240, R2 = 390
3.35V R1 = 220, R2 = 370
3.37V R1 = 330, R2 = 560
3.43V R1 = 270, R2 = 470
3.43V R1 = 390, R2 = 680
3.43V R1 = 470, R2 = 820
3.47V R1 = 220, R2 = 390
3.50V R1 = 150, R2 = 270
3.54V R1 = 180, R2 = 330
3.55V R1 = 370, R2 = 680
3.70V R1 = 240, R2 = 470
3.82V R1 = 180, R2 = 370
3.83V R1 = 330, R2 = 680
3.84V R1 = 270, R2 = 560
3.88V R1 = 390, R2 = 820
3.91V R1 = 470, R2 = 1000
3.92V R1 = 220, R2 = 470
3.96V R1 = 180, R2 = 390
4.00V R1 = 150, R2 = 330
4.02V R1 = 370, R2 = 820
4.17V R1 = 240, R2 = 560
4.33V R1 = 150, R2 = 370
4.36V R1 = 330, R2 = 820
4.40V R1 = 270, R2 = 680
4.43V R1 = 220, R2 = 560
4.44V R1 = 470, R2 = 1200
4.46V R1 = 390, R2 = 1000
4.50V R1 = 150, R2 = 390
4.51V R1 = 180, R2 = 470
4.63V R1 = 370, R2 = 1000
4.79V R1 = 240, R2 = 680
5.04V R1 = 330, R2 = 1000
5.05V R1 = 270, R2 = 820
5.10V R1 = 390, R2 = 1200
5.11V R1 = 220, R2 = 680
5.14V R1 = 180, R2 = 560
5.17V R1 = 150, R2 = 470
5.24V R1 = 470, R2 = 1500
5.30V R1 = 370, R2 = 1200
5.52V R1 = 240, R2 = 820
5.80V R1 = 330, R2 = 1200
5.88V R1 = 270, R2 = 1000
5.91V R1 = 220, R2 = 820
5.92V R1 = 150, R2 = 560
5.97V R1 = 180, R2 = 680
6.04V R1 = 470, R2 = 1800
6.06V R1 = 390, R2 = 1500
6.32V R1 = 370, R2 = 1500
6.46V R1 = 240, R2 = 1000
6.81V R1 = 270, R2 = 1200
6.92V R1 = 150, R2 = 680
6.93V R1 = 330, R2 = 1500
6.94V R1 = 180, R2 = 820
7.02V R1 = 390, R2 = 1800
7.10V R1 = 470, R2 = 2200
7.33V R1 = 370, R2 = 1800
7.50V R1 = 240, R2 = 1200
8.07V R1 = 330, R2 = 1800
8.08V R1 = 150, R2 = 820
8.19V R1 = 270, R2 = 1500
8.30V R1 = 390, R2 = 2200
8.43V R1 = 470, R2 = 2700
8.68V R1 = 370, R2 = 2200
9.06V R1 = 240, R2 = 1500
9.58V R1 = 330, R2 = 2200
9.77V R1 = 220, R2 = 1500
9.90V R1 = 390, R2 = 2700
10.03V R1 = 470, R2 = 3300
10.37V R1 = 370, R2 = 2700
10.63V R1 = 240, R2 = 1800
11.25V R1 = 150, R2 = 1200
11.44V R1 = 270, R2 = 2200
11.48V R1 = 330, R2 = 2700
11.67V R1 = 180, R2 = 1500
11.83V R1 = 390, R2 = 3300
12.40V R1 = 370, R2 = 3300
12.71V R1 = 240, R2 = 2200
13.75V R1 = 330, R2 = 3300
15.31V R1 = 240, R2 = 2700
16.25V R1 = 150, R2 = 1800
16.53V R1 = 270, R2 = 3300
16.59V R1 = 220, R2 = 2700
18.44V R1 = 240, R2 = 3300
19.58V R1 = 150, R2 = 2200
20.00V R1 = 220, R2 = 3300
23.75V R1 = 150, R2 = 2700
24.17V R1 = 180, R2 = 3300
28.75V R1 = 150, R2 = 3300

Links og ressourcer:

Lm317 baseret powersupply med variable strøm begrænsning

LM317 switchmode strømforsyning

 

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