Togwell put pen to paper on a two year deal on Thursday after talking with boss Nigel Adkins on Wednesday.
He told the Official site: "It's a good move for me, the club are ambitious in that they want to get back into the Championship. Hopefully we can do that this year - whether it's play-offs or automatic only time will tell.
"I wouldn't have signed if I didn't think we were capable of achieving promotion."
The new defensive midfielder may get a run out at Walsall on Saturday and has been handed the number 18 shirt.