Using Relay With Microcontroller

Question

I have created a boost converter which boost 12v to 60v. I want to be able to pulse this voltage under water. I would like to have only the positive lead (Vout from boost) to come off the boost controller where the negative lead can just connect directly to the batter. I was wandering if a relay is what I need and if yes would this one work. lh1501ba

EDIT

Ok, after reading all your helpful comments and answers I decided that the relay I chose might not be the right choice if I ever decide increase the frequency. The delay will just be to much. I made a amateurish attempt to include a PMOS to do the switching for me. The voltage will be variable controlled, and because of the nature of the Vgs on the PFET, I needed to also include a NMOS along with a voltage divider to help me provide the the correct gate voltage. I have it working correctly in LTspice but not sure how it will work in real life.

Here is the current schematic:

M2 is the PMOS and M3 is the NMOS. Also the signals are coming from the microcontroller and I have included a driver to drive the FETs.

Answer 1

Yes, that should work. Food for thought: SSRs (solid-state relays) are great because they "just work", but if you're building large quantities of this device, you'll probably want to use a high-side switch; they're way more economical, and can switch at much higher frequencies (since they're electrically, and not optically, coupled). You have to think a little harder when you go to hook one up, though.

Answer 2

Here's how you would connect it: -

Take note of the poor turn on and turn off times of this device. Using the maximum numbers your 30Hz square wave (33ms period) will have 3ms turning on and turning off eating into the quality of the square wave shape.

I'd use a p channel MOSFET if this was important.