/sci/ - Science & Math

>>11980350
This is called PWM. It's a modulation that can be used to digitalize information, but in this context is used to easily control how much power do you want to feed into the stove.
The power is controlled by the duty cycle. If the stove has a 30% duty cycle, it means that it spends 30% of the time turned on and only spends 30% of the maximum power. The duty cycle can easily and digitally be changed. Futhermore, you can build a control system with a feedback loop to monitor the temperature and manipulate the duty cycle instantly on real time to maintain the temperature constant, and all this logic can fit inside a chip.
To do this with AC and transformers is just a pain in the ass and it's too big and expensive. A fucking automatic variable responsive transformer? For a stovetop? Nope.