RFQ/BOM 0 Registrazione / Registrati

Seleziona la tua posizione

immagine dell'utente

Power is pulled down?

Hardware design
settembre 21, 2020 by Mohammed 1480

I bought a voice module. I found that the speaker had noise during debugging. When I connected the oscilloscope to watch the speaker, there was noise on the 5V power supply. It should be a power supply problem, but a DC power supply. How can I filter out such a situation where the voltage is pulled down?

Tutti i commenti

user image

Skylar postato su September 21, 2020

Change the high frequency filter capacitor of the power supply part slightly, and try.

0
user image

Kennedy postato su September 21, 2020

Strengthen the power filter, especially the high-frequency capacitor value. The speaker will consume power, and the voltage provided by the power module cannot be pulled down. Under normal circumstances, there should be no voltage drop.

0
user image

Alice postato su September 21, 2020

The fluctuation of the DC power supply used for power supply is a bit big.

0

Scrivi una risposta

È necessario effettuare il login per rispondere. Registrazione | Registrati