TL084 circuits JFET Input Op-amp datasheet
TL084: low noise OP-AMP in cheap. Use JFET input. Why popular in audio & a lot of circuits: wide bandwidths and fast slew rates. Example: Read more
2 DC power supply protection circuits
Here are two DC power supply protection circuits. The 3-pin regulator 7800 series gets popular. I also like it. Because it is convenient and affordable. Read more
24V Power Supply Circuit
Learn 9 ways to build 24V regulated power supply circuits, with 1A, 2A, 3A, 5A load current, low ripple. using general parts easy to build Read more
8A solenoid coil driver circuit using MOSFET
You finish PWM signal with Arduino control solenoid valve. You should use solenoid coil driver circuit. Good choice. 2 MOSFET and a few parts Read more
How does Fixed voltage regulator circuit work
Learn DC voltage regulator circuit, Types of, Fixed and Adjustable. How it works, for example, circuits using Zener diodes, transistors, and more. Read more