Re: Sewing Machine Motor w/foot pedal?
|
The KB controls use the 50/60Hz wave as their chop frequency. You'll be driving the motor with very short pulses at 120 Hz and they'll be like spikes.?
The 24 V power supply is steady DC and the chopper speed control?we use runs at a higher frequency - probably a few kHz - and they are square waves, varying in width, not voltage, to vary the speed.. This is a system we know works and if a part dies, they are cheap to replace.
|
