Abra AK-252 Quick Start Manual Download

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How To Use

The Power Supply Provides three different output voltages. The voltage

can be set to 3.3V and 5V or it can be adjusted using the potentiometer

from 1 to 20V. The Red LED indicates whether the board is getting power

or not. The Green LED indicates that the power supply is providing an

output to the “JP1” header. The Brightness of this LED can increase or

decrease on the voltage at this header.

In order to turn the power supply on/off, the ON-OFF switch is used.

The SW2 switch is used for the output voltage adjustment.

Note: If IC gets heated, keep heatsink on it.

Summary of Contents for AK-252

Page 1: ...Variable Power Supply 1 24VDC 26VDC Educational DIY KIT for Breadboard Variable Power Supply 1 24VDC 26VDC Educational DIY KIT for Breadboard...

Page 2: ...1 Table of Contents Components List 2 Tools required 3 Special Features of AK 252 3 Assembly 4 Let s Get Start with Soldering 4 How To Use 8 Schematic 9 Board Layout 9...

Page 3: ...sistors R1 4 1K 1 Resistors 11K 20K 6 2K R1 4 11K R1 4 20K R1 4 6 2K 1 2 1mm Power Jack 31 155 0 1 100K Potentiometer 13P100K 2 Capacitors 104uf 47uf CM104 47R25 1 Switch SSW 120 BB 1 3mm pitch Termin...

Page 4: ...variable voltages from 1 25V to 20V The end user can select the voltage using 3 way switch Features Used MIC2941 which has low voltage dropout 40mV comparted to LM317 1 25V 2 1mm DC jack and terminal...

Page 5: ...s Get Start with Soldering Follow my step by step instructions below to solder the PCB board Carefully observe the note points that are provided Step 1 Start with IC place as shown Note Keep a little...

Page 6: ...Red LED is put into LED1 and Green LED is put into LED2 The red indicates whether the board has input power If red LED glows that means your board is connected to the input To get output you need to...

Page 7: ...rrow symbol of the diode as shown in figure Step 5 Now the most important thing to do is solder the headers These are very sensitive as the orientation to the breadboard may disturb Follow the tips sh...

Page 8: ...7 Step 6 Finally you will solder all resistors and the terminal block R1 1K R2 1K R3 20K R4 11K R5 6 2K...

Page 9: ...icates whether the board is getting power or not The Green LED indicates that the power supply is providing an output to the JP1 header The Brightness of this LED can increase or decrease on the volta...

Page 10: ...9 Schematic Board Layout...