I have a scenario that I am trying to figure out how to resolve. I should start by saying I am still quite a newb at electronic engineering, as I am more a software engineer than a hardware one, but I am learning the hobby and having fun with it.
I have a DPDT relay, a Panasonic TQ2-5V. The relay uses 5V at the coils and is switching two paths of electrical signals. When the relay is not active, it is allowing a 5V PWM signal to come in one side and out the other. When the relay is active, it is allowing a 5V pure signal to come in one side and out the other. What is making or breaking the relay’s coils is a simple SPST switch that is either giving the relay ground or is leaving the ground leg as floating.
What I am trying to do is do that same circuit, but without the relay. I am a little familiar with Transistors and MOSFETs, but when I have seen them used, typically, you send a positive signal to make them switch on an off, which I am not doing (I am sending either ground or float). And I remember pretty well that if I leave Gates on a MOSFET in a floating state, ringing occurs on that pin and the MOSFET locks up. But there probably is another way that I don’t know about. As I said, I am a newb at this.
Is this possible to do without the relay, but with Transistors or MOSFETs?
Thanks for any replies,
Below is the attached schematic of the Relay circuit I am trying to make.