Mains Current Indicator with a LED
This is a mains 230V AC load current indicator and is a LIVE CIRCUIT, so take care. The Resistors have to be a fusible ceramic wire wound. More at Mains Voltage and Power Circuits...
This is a mains 230V AC load current indicator and is a LIVE CIRCUIT, so take care. The Resistors have to be a fusible ceramic wire wound. More at Mains Voltage and Power Circuits...
“I wish to assemble a bargraph display to indicate approximately 25volts dc.How many LM3914 I should cascade? How to calculate resistor value which is grounded from the junction of Pin 6 & 7 (Rhi...
What are LEDs ? How can we use them for Long Battery Life Mail from AD If LED flashes at 5-10 K Hz at even 50% Duty Cycle. It may save some power and...