Brand new original Japanese electric tool brushless driver board, high-end brand electric tools, driving workmanship materials are very good, gold seal low heat high power MOS tube, this kind of tube is more than twice as expensive as the ordinary tube, the German overtone has been removed before This tube is used for the integrated motor drive full seal. The driving chip is DRV91670 from Texas Instruments.The original drive used an 18V battery, and the over-discharge protection was inside the original battery. The actual test of the brushless drive can support a wide voltage range of 10-20V.The definition of the drive wiring has been researched. You can change the speed of the potentiometer. The drive supports forward and reverse rotation. The Hall positioning is offset by a certain angle. Otherwise, there is an error in the no-load current of forward and reverse operation. For the wiring definition, see the introduction box icon. .The potentiometers, switches and motors used in the picture modification must be purchased by yourself, and the wiring diagram is for reference only.
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