Making a 5V-to-36V Adjustable Power Supply Circuit!

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Build a versatile adjustable DC power supply that converts a fixed input voltage into a variable output ranging from 5V to 36V using a DC-DC boost converter. The output voltage can be easily adjusted with a potentiometer, making it ideal for powering electronic projects, testing circuits, charging devices, and DIY experiments. The circuit offers high efficiency, stable voltage regulation, and includes features such as overcurrent and thermal protection (depending on the converter module used).

Components Required:

  • Voltmeter
  • 12v DC Jack
  • Green LED
  • DC-DC Booster Module XL6009
  • 220 ohm Resistor
  • USB-A Shocket

Gerber File:

Making a 5V-to-36V Adjustable Power Supply Circuit!
Making a 5V-to-36V Adjustable Power Supply Circuit!
Download Gerber File

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DC-DC Booster Module XL6009

The XL6009 is a DC-DC Step-Up (Boost) Converter Module. It increases a lower DC input voltage to a higher adjustable output voltage. It cannot reduce (step down) the voltage.

Specifications

  • Module Name: XL6009 DC-DC Boost Converter
  • Input Voltage: 3V–32V DC (recommended 5V–32V)
  • Output Voltage: 5V–35V (adjustable with onboard potentiometer)
  • Maximum Output Current: Up to 4A (practical continuous current depends on cooling and voltage difference)
  • Efficiency: Up to 94%
  • Switching Frequency: 400 kHz

Pin Connections

  • IN+ → Positive input
  • IN− → Negative input (GND)
  • OUT+ → Positive output
  • OUT− → Negative output (GND)

Applications

  • Adjustable bench power supply (5V–35V)
  • Battery-powered projects
  • Arduino and ESP projects
  • LED drivers
  • Motor power supplies
  • Solar power systems

Important Notes

  • The output voltage must always be higher than the input voltage (boost converter only).
  • Adjust the potentiometer before connecting sensitive devices.
  • For high current loads, use proper heat dissipation.

Example:

Adjust Output: 6V, 9V, 12V, 24V, or up to about 35V using the potentiometer.

Input: 5V USB

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