I've been working on this off and on for over a year. I have a pulse width modulator (pwm) circuit designed and tested which controls the heat level.
![]()
![]()
It also has MOSFETs configured to control polarity and switch the coil on and off (pic directly above). The other side has a timing chip which pulses based on the rheostat setting you pick.
![]()
...
the Pulse
It also has MOSFETs configured to control polarity and switch the coil on and off (pic directly above). The other side has a timing chip which pulses based on the rheostat setting you pick.
the Pulse