Thank you all for sharing your experience with me . Following your suggestion problem solved.
Seems that adding a second cable to ground the Respeaker solved the issue. Although I didn’t understand good what was the issue since the problem solved by following the same route. The module was...
https://wiki.seeedstudio.com/ReSpeaker_Mic_Array_v2.0/
I tried to power externally the 5v line and I had no noise.
BUT when I bridged the common line (ground) between the 5v power supply and the common line of the 12v Source NOISE STARTED.
Seems you were correct, although i don't know how to move on.
I tried to power externally the 5v line and I had no noise.
BUT when I bridged the common line (ground) between the 5v power supply and the common line of the 12v Source NOISE STARTED.
What should I do? I never faced that before
i tryed to use 105 capacitors combined with electrolytic 1000μF with no improvment. lower value , 103,104 could help but i do not have on stock and i have to deliver the project soon, so waiting to receive is not an opption. I have inductors and mosfets, zener , resistors and alla common used...
- if you mean about the dc-dc converted i used the modules based on 1) XH-M404, 2) XL4016, 3) XL4015 , 4) voltage regulator LM1084IT-5.0
-No , unfortunately i don’t, i could upload a record from the noise of the amplifier
-all the connections have common ground, continuity tested to verify each...
I am sorry, i forgot to mention that i tryed different modules and also voltage regulators:
1) XH-M404, 2) XL4016, 3) XL4015 , 4) voltage regulator LM1084IT-5.0
5) voltage regulator lt1083cp with no improvment.
i watched the following video , and he explains that voltage regulators have almost...
Into a project I am working is use 12Vdc SMPS to power an audio amplifier and some more components. We have no “noise” on that stage.
Then I use a step down converter to convert the 12V to 5V and power a mic preamplifier (Respeaker – usb Mic array) and a development board. There is a lot of...
Sorry for misstyping the 4mm
and this are the specs of my motor
By the above calculation is needed a Stepper with at least 0.04Nm Holding Torque? So in my case the 1.8Nm is a bit too much? OverEngineered?
I build a Z-axis (not the one displayed on image). The weight of the Buildplatform is 2.29kg and is going to be used on a MSLA printer, so the weight might get increased 1kg additionally, so 3.29kg. The problem is that when detached from the printed model from Fep film there is a resistive...
Dear @DaveE , can a bridge rectifier protect from overvoltageas like the TVS will do?
i found the following TVS diodes available in my country
And, should i use Unidirectional TVS or Bidirectional TVS?
Dear @Baluncore , i see you moved the capacitor and added a second Diode in parallel with...
I will follow the advice by @DaveE and @Baluncore . If you agree with the connection diagram Please let me know
1) Should i use Tantalum, Ceramic or Electrolytic Capacitor (1000μF)?
2)Do you agree wit the use of TVS diode(transient voltage suppression diode)? and if yes , should i add...