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I lost the control board on a very simple electric stove, 4 pots for the stove top, 1 control for the oven, and a display with 2-3 LEDS and a display that showe

by sliken 4y ago

I lost the control board on a very simple electric stove, 4 pots for the stove top, 1 control for the oven, and a display with 2-3 LEDS and a display that showed either the time or the temp. Looked very simple. Had a relay for the oven and 2 temp sensors. One for controlling the oven, and another to shut everything down if the temp outside the oven got too hot. I do wonder how many types of these boards would be required to fit the common appliance types.

mindslight 4y ago
The oldest automated appliances were just complex mechanical timers sequencing various things on and off, and appliances haven't advanced that much. On/off motors, solenoids, sensors, and some series limit switches. Probably the biggest new difference I've seen is brushless motors with variable frequency drives, which requires its own power control electronics and probably some calibrations. So in my estimation not very many. Packaging it all up in a way that an appliance tech could be comfortable installing would be the hard part.