TL431 circuits as shunt regulators and more
Let’s use TL431 circuit instead Zener. It’s shunt regulator with high efficient, easily uses, cheap. Often, found in common circuits. Read more
Power supply
5V Low Dropout Regulator Circuit using transistor and LED
Make 5V low dropout regulator circuit using transistor and LED lowest voltage input is 6V so across it is 1V only, make output is 5V 0.5A Read more
Constant current circuit using transistors
Learning experiments with simple constant current circuit using transistors, a few plain parts, so helpful, especially Ni-HM battery charger. Read more
3.7V to 5V Boost/Step-up DC converter circuit
Here is 3.7V to 5V boost converter or step up switching circuit using MC34063 and a few parts,1N5819,100uH. For 200mA-300mA of load current. Read more
3V | 1.5V Switching Regulator circuit using KA34063
It is a 1.5V Step down Switching regulator using KA34063/MC34063. Imagine you have an old MP3 player it needs a 1.5V battery. But you only have the power bank, USB port 5V output. Sure, it doesn’t work. Therefore, this circuit is a good solution. Read more