This project DIY Variable Power Supply Circuit shows how to use an Arduino Uno board to generate a variable power source. A transistor and resistors are used to modify the circuits steady 9V output, which is produced by an IC 7809 voltage regulator. A 100uF capacitor filters the output voltage. The output voltage may be […]
Power Supply Circuits
Simple Battery Eliminator Circuits using 3 Methods
This article will guide you through the entire process of designing and building a basic battery eliminator circuit using 3 methods and with a lot of necessary features. When a steady and dependable DC power source is needed for electrical applications, battery eliminator circuits come in handy since they eliminate the requirement for conventional batteries. […]
Simple Positive Voltage to Negative Voltage Converter Circuit
In this article a positive DC voltage is converted into a negative DC voltage using a positive to negative voltage converter circuit, which is useful for a variety of electronic applications. One popular and adaptable integrated circuit that is well known for its dependability and simplicity of usage is the IC 555 . The IC […]
Simple Current Limiting Circuit using IC LM317/LM338
The quantity of current that flows to a load, or the item being powered, is controlled by a current limiting circuit that uses an LM317 or LM338 integrated circuit. By carefully configuring these integrated circuits, voltage regulators can also function as current limiters. An input voltage Vin from a power source enters the circuit. Three […]
Simple Boost Converter Circuit using IC 555
A basic design that steps up a low voltage DC input to a higher voltage DC output is a boost converter circuit that uses the IC 555 integrated circuit. Here, the circuits central component IC 555 produces a pulse width modulated PWM signal that regulates the other components switching. Additional parts utilized in this post […]
12V SMPS Driver Circuit for LED Strip
A 12V SMPS Switch Mode Power Supply Driver Circuit is a regulated power source that transforms mains power which is typically 110V or 220V AC, into a steady and secure 12V DC voltage that may be used to light LED strips. We will construct a simple, reasonably priced and potent LED driver circuit in this […]