DC Boost Converter circuit 3-4V to 12V-13.8V
I like the 12V LED. But I have only 3V of batteries. So, No light. When using this circuit, I can get light of the LED at 100 mA. And, an adjustable output voltage.
Switching Mode
5V Switching Regulator Circuit using transistors
This is LM317 Low dropout regulator 5V 2A using TIP41, The voltage input is 5.1V DC is converted into 5V output,while maximum output current to 2A by TIP41 […] Read more
LM2678 – 3.3V, 12V, 5V 5A switching fixed voltage regulator circuits
Here is circuit switching regulator 5V 5A for digital circuit.
Use IC LM2678-5.0 is High Efficiency 5V 5A Step-Down Voltage Regulator This is good power supply, small size and do not hot. Read more
MC34063 Stable battery switching regulator circuit
Although the input voltage change between 5V and 13V but the output voltage is steady at 12V Read more
0-45V 8A DC switching power supply circuit
This is DC switching power supply circuit with PCB, adjustable voltage 0-45V at 8A current max. low ripple and noise. full protection as most good supply […] Read more