Back in the early 80s when electric chokes were becoming commonplace there were growing pains, one being as Jon has mentioned the choke opening at a quick rate that the car would stall.
I had run across a local mechanic that came up with a easy cheap way to fix that problem. He used a chrysler ballast resistor inline to the choke heat wire to slow it down. It worked quite well to keep the choke from opening too quickly, and leaning out the mixture too fast. It may not be the answer to everyone's electric choke problem, but it worked well back in the day on the then, new cars.