Here is the circuit diagram
of regulated power supply. It is a small power supply that provides a regulated
voltage, adjustable between 1.5 and 35 volts at 1 ampere. This circuit is ready
to use, you just need to add a suitable transformer. This circuit is thermal
overload protected because the current limiter and thermal overload protection
are included in the IC.
Picture of the circuit:
1A
Regulated Power Supply Circuit Schematic
Circuit diagram:
1A
Regulated Power Supply Circuit Diagram
Parts:
IC = LM317
P1 = 4.7K
R1 = 120R
C1 = 100nF - 63V
C2 = 1uF - 35V
C3 = 10uF - 35V
C4 = 2200uF - 35V
D1-D4 = 1N4007
Features:
- Just
add a suitable transformer (see table)
- Great
to power your projects and save money on batteries
- Suitable
as an adjustable power supply for experiments
- Control
DC motors, low voltage light bulbs, …
Specifications :
- Preset
any voltage between 1.5 and 35V
- Very
low ripple (80dB rejection)
- Short-circuit,
thermal and overload protection
- Max
input voltage : 28VAC or 40VDC
- Max
dissipation : 15W (with heatsink)
- Dimensions
: 52x52mm (2.1” x 2.1”)
Technical Specifications
- Input
Voltage = 40Vdc max Transformer
- Output
Voltage = 1.5V to 35Vdc
- Output
Current = 1.5 Amps max.
- Power
Dissipation = 15W max (cooled)
Note:
- It
has not to be cooled if used for small powers. 28 Volt AC max is allowed
for the input voltage.
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