Ellis put in 27 points and Jennings added 21 for the Bucks, who went into the all-star break on a winning note.
Former 76er Samuel Dalembert turned in an all-around performance of 17 points and 14 rebounds in Milwaukee's victory.
Philadelphia, meanwhile, stumbled into the break with three losses in four contests.
N.J. man wakes up from 10-hour sleep with knife in back
Puzzle-maker slips 'Murdoch Is Evil' into Rupert Murdoch's Sunday Telegraph