TI中文支持网Part Number:DRV401
Hello, the drv401 chip manual mentions that the chip will provide probe excitation. Then,
1. May I ask which module inside the chip provides this excitation?
2. This excitation is provided to the probe, at which point the probe functions as an excitation coil. How is the magnetic field detection achieved?
3. Can I understand that it is time-division multiplexing? Divided into excitation phase and detection phase, and during the gap of the excitation pulse switching, the detection is achieved through the duty cycle offset of the PWM wave?
Vivian Gao：
We do not have a design guide, but you can refer to link below.
e2e.ti.com/…/drv401-about-probe-excitation-and-closed-loop-accuracy
