Hi !
In my last audio project i have used small relays TQ2-24V (2880 ohms coil), for switching audio signals.
I use the typical snubber: one 4148 diode across the coil, in parallel with a 1uf ceramic capacitor.
The relay is powered from the same PSU rail used to power the audio circuits (+17.5v) BUT, with a dedicated separated ground return to the psu gnd.
The switches I use to switch power to the relays are ALPS SPUJ DPDT.
With all these ingredients the transient THUMP is still quite noticeable. In other projects the Thump was not as loud... ¿maybe because i used a 28v rail and a resistor to reduce the voltage within the margin of the 24v relay?hmmm....
Any comment is wellcome!
Thank you for your help!
Jay x
In my last audio project i have used small relays TQ2-24V (2880 ohms coil), for switching audio signals.
I use the typical snubber: one 4148 diode across the coil, in parallel with a 1uf ceramic capacitor.
The relay is powered from the same PSU rail used to power the audio circuits (+17.5v) BUT, with a dedicated separated ground return to the psu gnd.
The switches I use to switch power to the relays are ALPS SPUJ DPDT.
With all these ingredients the transient THUMP is still quite noticeable. In other projects the Thump was not as loud... ¿maybe because i used a 28v rail and a resistor to reduce the voltage within the margin of the 24v relay?hmmm....
Any comment is wellcome!
Thank you for your help!
Jay x