The described circuit is an simple adjustable power supply that uses two transistors BD140 and MJ2955 to regulate the output voltage. What is a Adjustable Power Supply Circuit: An Adjustable Power Supply Circuit using Two Transistors is a type of electronic circuit that allows for the regulation and adjustment of output voltage using two transistors. […]
Power Supply Circuits
Simple Transformerless Power Supply Circuit
This post shows you how to build a small power supply circuit that takes high voltage wall outlet power and turns it into lower voltage for your electronics. It does this in a special way, without needing a bulky transformer. WARNING: Building circuits with high voltage can be dangerous. Only do this with adult supervision. […]
Simple Bench Power Supply Circuit
This circuit is a simple but effective adjustable voltage and current regulated bench power supply. What is a Bench Power Supply: A bench power supply is a versatile electronic device used in laboratories, workshops and electronics testing environments to provide a stable and adjustable source of electrical power. It is designed to supply a controllable […]
High Current Adjustable LM317 Power Supply Circuit
The LM317 is a chip that controls voltage, but it can only deliver a small amount of current 1.5 amps. We can add another part a TIP35 transistor to the LM317 circuit. This transistor acts like a follower doing whatever the LM317 tells it to do. By adding this transistor the LM317 can control a […]
How to Build a Simple Solar Cell using a 2N3055 Transistor
Want to learn how solar panels work? Build your own mini solar cell at home! It is a fun project for electronics enthusiasts and uses a common part called a transistor. This is a basic model and wont power your house, but it is a great way to see how sunlight can be converted into […]
Simple Current Limiter Circuit using Transistors
This article shows you how to build a circuit that limits how much power goes to other electronics. It uses two transistors and a special resistor to act like a guard and make sure things do not get overloaded. What is a Current Limiter Circuit using Transistors: A current limiter circuit using transistors is designed […]