Hello,
Help Required.
Briefly, I recently purchased a Mean Well 70W 5V 14A Power Supply and have acquired an unsafe amount of knowledge from the internet and forums. When testing voltage across the main terminals of the power supply, I shorted the terminals with the multi-meter lead and there was fireworks. It is a timely reminder that this can be a dangerous hobby. Luckily neither the electrical components nor myself was damaged. Consequently, I have decided to double check every step. 14A is a decent amount of current. Do you hesitate to think of the damage possible?
To the point of this post, I wish to join some projects together.
One project is a drum machine based around teensy 3.6. It has 18 buttons and 19 Ws2812 leds and a couple of 10k linear pots. The teensy will powered from the new power supply and the leds to be powered in parallel from the same power supply and the earths tied together. It is working well from the desktop power supply at present. Current draw for this component is not so large. No more than 1A?.
I have another project created a few months ago still sitting on the breadboard. It is a sound visualizer using components of a msgeq7 chip and a teensy 3.6. This runs 7 arrays of 25 ws2812b leds (175 leds) wired in parallel with the teensy and the "equaliser" chip. It works perfectly creating a nice rainbow visualisation based upon different sound frequencies. I want to take this off the breadboard and power it with the same new power supply, in parallel with the teensy drum machine circuit. The current drawn from this circuit could be quite large.
175 leds x 0.06 Amps maximum each = about 10 amps?
Multimeter readings come nowhere near this however.
So my long-winded question is, in joining these two projects into one box so that I can have led visualisations of the drum machine sounds, DO i need to do some OHMS law calculations for current, and employ different resistors to control the current flow to each component of the circuit? Do I need to include capacitors to smooth out the flow to both of the drum machine and visualiser circuits? What can i do to prevent ground loops and switching noises that will be inherent when the LEDS in the visualizer circuit draw a huge amount of current then nothing in a split second?
Apologies as I am not really sure of the words to ask the question accurately.
How do i join these projects together and do it safely?
Help Required.
Briefly, I recently purchased a Mean Well 70W 5V 14A Power Supply and have acquired an unsafe amount of knowledge from the internet and forums. When testing voltage across the main terminals of the power supply, I shorted the terminals with the multi-meter lead and there was fireworks. It is a timely reminder that this can be a dangerous hobby. Luckily neither the electrical components nor myself was damaged. Consequently, I have decided to double check every step. 14A is a decent amount of current. Do you hesitate to think of the damage possible?
To the point of this post, I wish to join some projects together.
One project is a drum machine based around teensy 3.6. It has 18 buttons and 19 Ws2812 leds and a couple of 10k linear pots. The teensy will powered from the new power supply and the leds to be powered in parallel from the same power supply and the earths tied together. It is working well from the desktop power supply at present. Current draw for this component is not so large. No more than 1A?.
I have another project created a few months ago still sitting on the breadboard. It is a sound visualizer using components of a msgeq7 chip and a teensy 3.6. This runs 7 arrays of 25 ws2812b leds (175 leds) wired in parallel with the teensy and the "equaliser" chip. It works perfectly creating a nice rainbow visualisation based upon different sound frequencies. I want to take this off the breadboard and power it with the same new power supply, in parallel with the teensy drum machine circuit. The current drawn from this circuit could be quite large.
175 leds x 0.06 Amps maximum each = about 10 amps?
Multimeter readings come nowhere near this however.
So my long-winded question is, in joining these two projects into one box so that I can have led visualisations of the drum machine sounds, DO i need to do some OHMS law calculations for current, and employ different resistors to control the current flow to each component of the circuit? Do I need to include capacitors to smooth out the flow to both of the drum machine and visualiser circuits? What can i do to prevent ground loops and switching noises that will be inherent when the LEDS in the visualizer circuit draw a huge amount of current then nothing in a split second?
Apologies as I am not really sure of the words to ask the question accurately.
How do i join these projects together and do it safely?