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
Power supply
3V | 1.5V Switching Regulator circuit
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
0-30V Variable Power Supply Circuit at 3A
Let’s create a 0-30V 3A Laboratory DC Power Supply. High efficiency variable regulator that new circuit design using UA723 and TIP3055 Read more
7805 datasheet voltage regulator IC: Pinout and example circuits
Here is the 7805 5V voltage regulator datasheet the 7805 voltage regulator IC. They are designed to provide a constant 5V. Read more
Ham radio power supply circuit with RFI elimination
Here is Ham radio power supply circuit using LM350T x4 in parallel for Amateur radio CB/RF/VHF. The output is 13.8V at 10A current. It is good circuit with PCB low noise RFI elimination. Read more