Connect NodeMCU or D1 Mini pins D1, D2, and D3 to the gate (1st) legs of the three IRF540 or TIP120 transistors using 1K resistors. Connect theSourcelegs to the ground. Connect the Drain legs to the Red, Green, and Blue connectors on the LED strip. You can use the 12V power s...
Arduino is generating a modified sine waveform of 5V which is amplified to a level of 12V using L293D ic. Battery voltage is monitored every 20ms using timer interrupt. Step 2: MAKING POWER STAGE As the inverter output power is 600VA and it is 75% efficient so the input current at full...
For assembling the battery back simply stick both of the batteries using double sided tape and connect them in series that means connect the positive terminal of one battery to the negative terminal of the other battery. Then finally solder two more wires to the remaining terminals of the batter...
The setting up of the 5V output is precisely done using the P2 preset and the D2 zener diode. Power bank Resistor Calculations The resistors R1 and R2 decide how much current can be achieved across the emitter side of the transistors. These output currents determine how fast the internal bat...