The input voltage is 12v, the output is adjustable between 12-24 volts. It has 5 ampere power. The coil used is 50μH 5 amps. Setting the LM2588-ADJ output voltage is determined by the resistance values of R1 and R2. Output can be adjusted by using a series or direct trimpot to the R1 resistor.
LM2588-ADJ output calculation;
V output = V REF (1 + R1 / R2)
VREF = 1.23
A 5A or higher power diode can be used, as diode D1 is a diode that protects the circuit when the + and – values of the input are reversed. Diode D2 is a Schottky barrier diode A 5A or higher power diode can be used.
LM2588ADJ 12V to 24V Step-up Schematic
Booster DC-DC converter LM2588-ADJ
parts list
Regulator IC LM2588-ADJ
Diodes D1: V15 6A2
D2: SBR1045 (Schottky barrier diode)
Capacitors 1000μF 50V
100μF 50V
0.1μF
0.68μF
Resistor 1KΩ, 2KΩ, 3KΩ, 18KΩ,
Pot or trimpot 20kΩ
Coil 50μH 5A
Cooler 2
Published: 2009/01/18 Tags: dc dc converter circuit, power electronic projects
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