Adsense and responsive designs…

Hi guys,

Does anyone know of a plugin that changes web ads to mobile ads on Adsense automatically when using a responsive design? Right now, I’m getting by with code e.g. desktop display: <web ad code here> mobile display: <mobile ad code here>

The problem with that is Google seems to view it as 2 ads in that spot instead of 1…and as Google only allow 3 ads to be shown at one time, this stops ads displaying either on the desktop or mobile.

I hope this isn’t too confusing! Let me know if you want me to clear anything up.

Anyone got any ideas? Thanks for your time.

Regards,
Ross.