In our previous articles, we learned how to build automatic street light circuit using a single transistor, an IC 555 and a solar panel setup. Today we are going to investigate the fourth design from our collection which is a very popular and reliable automatic street light circuit using just two transistors and a relay. […]
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How to Build a Simple Single Transistor Automatic Street Light Circuit
In this article we are going to learn how to build a very simple and cheap automatic street light circuit using only a single transistor. If you are a beginner in electronics and you want to make an automatic lamp that turns on by itself during evening and turns off in morning without any manual […]
Build this Simple Solar Egg Incubator Circuit
In this post I am showing you one very nice and simple solar powered egg incubator circuit project. Many people ask me bro how to upgrade simple incubator with solar charger and battery backup so egg will not spoil when main power line is going off. In rural areas power cut is major problem for […]
Build this Simple Zener-Stabilized Wien Bridge Sine Wave Generator Circuit
This zener diode stabilized Wien Bridge sine wave oscillator circuit is very easy to build and test, let me explain full working in simple way. Basically here we are using TL072 opamp which needs dual supply like +15V on pin 8 and -15V on pin 4. Pin 1 is our main output pin from where […]
Build Customized 220V Flyback SMPS Circuits: 12V, 5A, 60W Example Discussed
In this post I will explain you all the simple formulas, step by step, which you can use for designing and building professional grade 220V AC SMPS flyback converter circuits. As we know the SMPS transformer is the heart of an SMPS design, so here we will learn all the steps, one by step, using […]
Simple 85V–265V AC to 12V 5A SMPS Design Using UC3843 (With Calculations)
In this article we are going to see a simple SMPS circuit diagram which is using UC3843 IC. This circuit can convert 85V AC to 285V AC input into stable 12V DC output. UC3843 is very popular current mode PWM controller IC used in many power supply circuits. Below we will discuss full working and […]