50V to 3–45V Variable Power Supply Circuit! #electronics #diy #ideax

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⚡ DIY Adjustable Power Supply 3–45V Using D718 Transistor 🔧🔋

Looking for a simple and affordable adjustable voltage regulator? In this video, I’ll show you how to make a powerful DC power supply using a D718 transistor, a 10K potentiometer, and a 220Ω resistor. With this circuit, you can convert a 50V input into an adjustable output between 3V and 45V! Ideal for testing electronics, powering motors, or building your own DIY power bench station!

🔍 What You’ll Learn in This Video: ✔️ How to design a variable voltage regulator circuit
✔️ The role of the D718 transistor in voltage regulation
✔️ How to use a potentiometer for output control
✔️ Step-by-step assembly of an adjustable DC power supply

🧩 Components Used:

D718 Power Transistor – Handles high voltage/current

10K Potentiometer – Adjusts output voltage

220Ω Resistor – Current control to the base

50V DC Power Source – Input for the regulator

Output Voltage: Adjustable 3V to 45V

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#AdjustablePowerSupply #VoltageRegulator #D718Circuit #DIYPowerSupply #VariableVoltage #DCRegulator #ElectronicsDIY #BenchPowerSupply #TransistorCircuit #YouTubeShorts