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Hello all!  I am brand new to electronics and have been learning on the fly.  I am hoping to take advantage of some of your knowledge to help me figure out how to design a circuit for this project.  The circuit will have 3 -12 volt LEDs, a 5 volt fan, and a switch.  This will all be powered by a 9 volt battery.  I plan to wire the fan and the 3 LEDs in parallel.  The switch is really throwing me off, however.  I've included an image of the instructions for the switch for reference, but I am not sure how to set it up so that when engaged the fan and all three LEDs come on.  Any help on this would be greatly appreciated.  Thank you.

PXL_20230222_041339471.jpg

PXL_20230222_043344423.jpg

PXL_20230222_043418635.jpg

PXL_20230222_043501439.jpg

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Thank you.  I may switch out the LEDs to something requiring less voltage.  Although if it just means they might not be as bright, I may stick with them as I only want a dim light on this project anyway.  Thank you for your insight.  Wiring the switch into the circuit is what I am mainly having stuggles with.  Any suggestions there?  I figured out how to wire it up when in series, but parallel is throwing me off.

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  • 1 month later...
On 2/22/2023 at 10:24 AM, jcbenson12 said:

Hello all!  I am brand new to electronics and have been learning on the fly.  I am hoping to take advantage of some of your knowledge to help me figure out how to design a circuit for this project.  The circuit will have 3 -12 volt LEDs, a 5 volt fan, and a switch.  This will all be powered by a 9 volt battery.  I plan to wire the fan and the 3 LEDs in parallel.  The switch is really throwing me off, however.  I've included an image of the instructions for the switch for reference, but I am not sure how to set it up so that when engaged the fan and all three LEDs come on.  Any help on this would be greatly appreciated.  Thank you.

PXL_20230222_041339471.jpg

PXL_20230222_043344423.jpg

PXL_20230222_043418635.jpg

PXL_20230222_043501439.jpg

https://www.fsgnetworks.com/products/data-center-cable/

Thank you for your question! Based on your requirements, you can create the circuit using the following components: 3 12-volt LEDs 1 5-volt fan 1 switch 1 9-volt battery Appropriate resistors for the LEDs Here's a basic schematic diagram for the circuit: lua Copy code +9V | R1    +---LED1---+ |     |         | +-----+         | |     R2        | |     |         | +-----+         | |     R3        | |     |         | +-----+---LED2--+ |     R4        | |     |         | +-----+         | |     R5        | |     |         | +-----+---LED3--+ |               | |               | |               | |     FAN       | +-----+         | |     |         | R6    |         | |     |         | GND---+---------+ | S1 | GND In this circuit, the three LEDs are connected in parallel with their appropriate resistors R1, R2, and R3. The fan is also connected in parallel with resistor R6. The switch S1 is connected between the positive terminal of the battery and the positive rail of the circuit. When the switch is closed, it completes the circuit and allows current to flow through the LEDs and the fan. The appropriate resistors are used to limit the current flowing through the LEDs to prevent them from burning out. Resistor R6 is used to limit the current flowing through the fan and protect it from damage. Here are the steps you can follow to build the circuit: Calculate the appropriate resistor values for the LEDs based on their voltage and current ratings. Connect the LEDs in parallel with their respective resistors. Connect the fan in parallel with a suitable resistor. Connect the switch between the positive terminal of the battery and the positive rail of the circuit. Test the circuit to make sure everything is working as expected. I hope this helps you design your circuit. If you have any further questions or need more guidance, feel free to ask!

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