There are 85 LED's in the circuit, so it starts with 3 LED's connected up with 1 resistor across them, then another 3 LED's and so on, so that makes 29.
Hi i built a circuit for a project and I am having some trouble working out important factors of the circuit. My circuit is powered by a 12V power supply, its wired in series, it contains 85 LED's that are connected with a 1kΩ resistor across 3 off the LED's. This is then connected to a PIR...
I have just wired up a LED circuit in series of 3 with a resistor of 1000 ohms 1.6W on each 3. Its being supplied via a 12 V battery. The circuit is wired up to a PIR which when detects movement the LED's will light up.
I need some help working out how much current will be running throughout...
Hi yes all the LED's are identical type
The forward voltage of each is 3 - 3.4 V
LED Current is 20 mA
Im not to fussed about the time that they are running for and my purpose for them is to create a sign.
My project is a LED sign that is connected up to a PIR sensor that when the...
Hi I am making a project in my spare time and i am getting quite confused with the whole situation.
I have 100 LED's that need to be wired up, my first question is what is best to wire them up in, series or parallel?
My power source is a 9V alkaline battery and i need to know if a...