555 Timer Pulse Generator Circuits
This is a simple pulse generator circuit or standard astable oscillator circuit for IC 555 timer,NE555N IC. Use for digital Logic circuit. Read more
7905 5V Negative Voltage Regulator Circuits
When it comes to a 5V negative voltage regulator, we usually choose the 7905 three-terminal negative regulator chip as the first choice because it is both easy to use and cheap. Plus, it can supply up to 1.5A when equipped with a sufficient heatsink. We can also turn it into an adjustable voltage regulator by … Read more
AMS1117 1A LDO Voltage Adjustable Regulator Circuits
It is a low-drop regulator, which means that it reaches its maximum efficiency with an input voltage that only needs to be a little bit higher than the output voltage, or around 0.9V to 1.2V. Read more
Small Automatic Plant Watering with a Solar Cell Power System
This circuit consists mainly of the following components: a solar cell, a DC pump, a 555 timer, and an LM311 comparator. It worked well and was also very efficient, requiring only power from the solar cell rather than a battery. Read more
Simple Solar-Powered 12V Water Pump Circuit with Battery
A solar-powered water pump circuit for a place with no power outlet, with a battery. We’ll learn how to use a MOSFET instead of a relay, as well as the NE555 timer circuit. Read more