Toshiba has introduced a bipolar driver for two-phase stepping motors up to 44V 5A that includes 1/128 micro-stepping. TB67S128FTG, as it is to be known, also supports full, half, quarter, 1/8, 1/16, 1/32 and 1/64 step operation – micro-stepping is by PWM, using sine-wave derived on-off ratios – output chopping frequency can be adjusted by external ...
This story continues at 44V 5A stepper motor chip offers 128 micro-step mode for quiet operation
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from Electronics Weekly https://www.electronicsweekly.com/market-sectors/industrial-electronics/44v-5a-stepper-motor-chip-offers-128-micro-step-mode-quiet-operation-2018-08/
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