Transcript LM 317 IC - UStudy.in
LM 317 IC
www.ustudy.in
LM 317 IC
www.ustudy.in
LM 317 Power supply
The output is adjustable between
1.25 and 13.5 Volts
with a
maximum current limit of 1.5 Amps
.
The LM317K regulator is internally protected from current and thermal overloads.
A
heat sink will be required
for most applications however.
www.ustudy.in
LM 317 Power supply
www.ustudy.in
LM 317 Power supply parts list
Parts List
D2 D3 IC1 T1 F R1 R2 C1 C2 C3 C4 D1 220 Ω 2 KΩ Variable Resistor 3300 µf 50v 10 µf 25v 1 µf 25v 0.1 µf 100V 5A bridge rectifier IN 4007 IN 4007 LM 317 18 VAC 2AMP 250mA www.ustudy.in
LM 317 Regulator Pin out
www.ustudy.in
LM 317 Power supply
The
diodes D2
and
D3
in the circuit prevent damage to the regulator during certain adverse conditions such as the
output voltage
being higher than the
input voltage to the regulator
or the capacitor across R2 from discharging through the adjustment terminal of the regulator.
www.ustudy.in
LM 317 Power supply Output voltage
www.ustudy.in
LM 317 IC Front view
www.ustudy.in
DC power supply using LM-317 IC circuit diagram
www.ustudy.in
LM 317 IC calculator
www.ustudy.in
LM 317 Voltage Regulator calculator
This Voltage Regulator Calculator will work for most
voltage regulators with a reference voltage (V REF ) of 1.25
.
For the
LM338 and LM350
regulators,
120 ohms
is typically used for R 1 .
However, other values such as
150 or 220 ohms
can also be used for
R 1
.
www.ustudy.in
LM 317 Voltage Regulator calculator
www.ustudy.in
LM 317 Current Regulator calculator
This
Current Regulator
Calculator will work for adjustable regulators with a
reference voltage (V REF ) of 1.25
.
To determine the output current from the regulator, enter a value for the program
resistor
(R 1 ) in ohms and press the "
Calculate
" button.
This will calculate the
Output Current in Amperes
and the amount of Power Dissipated across R 1 in Watts.
www.ustudy.in
LM 317 Current Regulator calculator
www.ustudy.in
The End
…… Thank You …….
www.ustudy.in