⚡ DIY Auto Voltage Circuit (3V to 150V) – Build Your Own Adjustable Voltage Regulator

By

 


⚡ DIY Auto Voltage Circuit (3V to 150V) – Build Your Own Adjustable Voltage Regulator

Need a circuit that can automatically adjust voltage from 3V to 150V? Building an auto voltage circuit is a useful project, especially for electronics enthusiasts and hobbyists who work with a wide range of devices requiring different voltage levels. Let’s dive into how you can create this circuit!

📦 Materials Needed:

  • LM2596 buck converter (adjustable voltage regulator)

  • MOSFET (e.g., IRF540N)

  • Voltage sensor module (e.g., ZMPT101B for AC voltage sensing)

  • Op-amp (e.g., LM324 for feedback control)

  • Resistors, capacitors, and diodes (for filtering and protection)

  • Transformer (to step down AC voltage to DC, if needed)

  • Microcontroller (optional, for automation and better control)

  • Heat sink (for temperature management)

  • DC power source (for powering the circuit)

⚙️ Steps to Build:

Step 1: Power Supply Setup

  1. If you’re working with AC input, use a transformer to convert the AC voltage (like 220V) to a lower DC voltage (such as 12V or 24V) for input.

  2. If you’re using DC input, you can skip this step and directly use a suitable DC power supply (such as a 12V battery or adapter).

Step 2: Voltage Sensing

  1. Use a voltage sensor like the ZMPT101B module to sense the input voltage (if working with AC). This module will help you monitor the voltage level and provide feedback.

  2. For DC voltage, a simple voltage divider circuit can help scale down the voltage for input to the microcontroller or comparator.

Step 3: Adjusting Voltage

  1. Connect the LM2596 buck converter (or similar) to regulate the voltage output. The LM2596 is an adjustable regulator that can step down higher voltage to a lower voltage. Adjust the potentiometer on the module to achieve the desired output voltage.

  2. If you need to boost voltage, consider using a boost converter circuit instead, or you can use MOSFETs and transistors for switching the voltage.

Step 4: Control Feedback

  1. Use an op-amp or microcontroller to monitor the voltage output and compare it to a reference voltage. The feedback control will automatically adjust the output voltage to stay within the desired range (from 3V to 150V).

  2. If you're using a microcontroller, write a simple program to control the feedback loop and adjust the output accordingly.

Step 5: Assemble the Circuit

  1. Secure all the components on a breadboard or PCB for stable connections.

  2. Add resistors, capacitors, and diodes for filtering and protection against voltage spikes and noise.

Step 6: Testing the Circuit

  1. Once everything is assembled, connect the input voltage to the circuit and test the output.

  2. Use a multimeter to measure the output voltage and adjust the LM2596 module or microcontroller settings to ensure the output stays within the 3V to 150V range.

💡 Tips:

  • Ensure the MOSFETs are rated for high voltages and currents.

  • Heat sinks are important, especially when the circuit is running at higher voltages to prevent components from overheating.

  • Always use a fuse or circuit breaker for safety, especially when working with higher voltages.

✅ Result:

You’ve successfully created an auto voltage circuit that can automatically adjust the output from 3V to 150V. This circuit can be used for a variety of applications, such as powering devices that require different voltage levels.

🔋 Make your own adaptable power supply and control the voltage like a pro with this DIY project!



AliExpress

Prices, deals and availability shown in this email reflect offers at send time and are subject to change. Please note that shipping fees are not included. Visit the product page for the latest info.
Download to get app-only deals
 

AliExpress Service Center
Alibaba.com Singapore E-Commerce Private Limited,
c/o 26/F Tower One, Times Square, 1 Matheson Street, Causeway Bay, Hong Kong

Comments

Post a Comment