ANALOG CIRCUITS PROJECTS Archive

The fan speed control circuit is a simple MOSFET regulator that automatically adjusts the rotational speed of a 12V DC fan using an NTC temperature sensor. It is suitable for..

A simple AM transmitter circuit that can be built with low-cost components and is stated to be capable of shortwave broadcasting over an area of approximately 13 km in diameter…

Automatic Lighting On/Off Circuit at Twilight. A device was needed for the LED lamps my friend connected in the garden, one that would apply voltage in the dark and cut..

Among simple, low-component-count electronic projects that can be built quickly, NE555-based sound generators always have a special place. This circuit is one of them. Looking at the schematic, an extremely..

The designed laser light barrier can provide reliable detection at a range of 100 meters and more. In this design, which uses a continuously operating wave (CW) laser diode in..

This circuit, utilizing LM35 precision temperature sensors, allows for the independent control of two 12V fans. The control stage features an LM358 op-amp. The goal is to prevent the temperature..

It’s been tested and reported to work very well. This simple FM transmitter is very powerful (not a simple transmitter, but easy to build). Using this transmitter, you can transmit..

Two documents prepared by Texas Instruments for their digital logic gate integrated circuits. One document contains detailed information about the internal structure and operating systems of the 74xx and 40xx..

For battery spot welding machine construction a powerful source and a control circuit for triggering are required, the cheapest and simplest is the single trigger design made with NE555. The..

The purpose of the Battery Protection circuit is to protect the 6V battery from over-discharging. The battery voltage is continuously monitored and when it reaches a dangerously low voltage value,..