XL6009 is a DC-DC switching regulator IC, and we use it where lower voltage DC has to be lifted higher, or sometimes changed other ways, boost, buck-boost, flyback, even inverting, all that is possible depending how outside parts are connected. Why XL6009 is More Efficient Than Linear Regulators It is not like old regulator types […]
Newly Updated Circuit Projects:
Long Duration Timer Circuit using IC 4541: Working and Calculations
The CD4541B is a CMOS programmable timer IC, and we use it where long delay interval is needed for a load, and also for jobs like frequency division, or timing pulse work. And all this happens with only just a few outside parts, not much around it. With ordinary IC 555, when delay becomes too […]
How to Use IC LM393 as a Current Controller Circuit
In this post we will understand a current controller and current limiter circuit using the IC LM393 comparator. This circuit is using a low power voltage comparator integrated circuit LM393 and one power Metal Oxide Semiconductor Field Effect Transistor, so the idea is simple but the working looks a little deep when we see it […]
220V AC to 12V DC Flyback SMPS Circuit using IC 555 (7555)
This practical flyback SMPS circuit uses ICM7555 as the main oscillator, and yep the whole idea is to take 220V AC mains directly then convert it into isolated low voltage DC through a ferrite transformer.. Unlike many PWM controller designs, here we have very few parts but still it gives mains isolation, voltage feedback, current […]
Simple 220V AC Fan Regulator Circuit using Push Button
In this post we learn about this 220V AC electronic fan regulator circuit using a push button which changes speed step by step with each press. We press the button, then circuit cleans the signal, counts it properly, and then selects a relevant fixed speed level. Each button press moves the fan from OFF to […]
LED String Series Resistor Calculator
Want to know the exact current limiter resistor value for a specific LED series string? You can now use this calculator toll to quickly get the precise LED series string resistor value. Calculator by homemade-circuits.com LED Series Resistor Calculator Supply Voltage (Volts) LED Forward Voltage (Volts) LED Current (mA) Number Of LEDs In Series Calculate […]