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DRV401-EP: 芯片框架结构图问题

Part Number: DRV401-EP
Other Parts Discussed in Thread: DRV401, DRV421, , DRV421EVM

   DRV401和DRV421芯片框架图太过简化,无法理解磁通门信号如何转为补偿线圈电流信号,请问有相关资料项目描述内部电路或功能模块,以便于设计人员能够设计外围电路,完成产品设计?激励线圈产生的正负PWM信号如何转为补偿线圈的电流信号?