John_R Posted February 18 Report Share Posted February 18 Well, here's a little something for ya'll to ponder... The other day I bought a Laminator off the clearance rack at a discount store (it was cheap enough, and I was hoping to use it to replace my failing 30 year old Laminator I use for PCB Transfer Paper). The transfer process is naturally a temp/time thing, and unfortunately this Laminator runs way too fast (and the temp not adjustable). So I figure I can change the speed somehow. So I pop it open and find this little gearmotor (Kaili TY-50BF), a little web research shows it's a synchronous motor. Since the speed of a synchronous motor is dependent on frequency rather that voltage, a typical "triac motor controller" wont work, so I'm thinking about some little MOSFET inverter circuit that pumps out 120vac with an adjustable frequency, and I've found examples on the web using different means of digital timing. Now, I have an old V120-22-T1 sitting in my shop, and was thinking I could write some little PWM code to flip-flop the drive to a couple MOSFETs and set the frequency I want? Anybody done something like this who can provide some guidance? BTW, was going to add a couple pics, but I cant seem to capture a .png that meets the 14kB requirement??? Quote Link to comment Share on other sites More sharing options...
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