9V regulated power supply circuit diagram
Create 9V regulated power supply circuit using 7809 and transistor. For circuit requires stable voltage, low noise signal, and without AC voltage leakage. Read more
Power supply
Experiment 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
USB 5V to 12V DC-DC Step-Up Converter circuit
This circuit offers a variety of Buck DC to DC converters. Because as circuit increase voltage as the usb 5v to 12v dc-dc step-up converter. This circuit is called Boost converter circuit. Read more
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