Other Parts Discussed in Thread: DRV8353
Hello,
We are working on a custom board(Drv8353 chip ) facing an issue with the Hall sensor's current feedback.
Even though the hall sensor current feedback center to 1.65V and the checked reading voltage is 1.65V. Checked with 24V Motor which is not running smoothly.
Sometimes starts at a higher frequency taking a high current and suddenly drops to a lower frequency taking a high current.
We set values in user_mtr.h like below,
#define USER_M1_NOMINAL_DC_BUS_VOLTAGE_V (24.0f)
//! \brief Defines the maximum voltage at the AD converter
#define USER_M1_ADC_FULL_SCALE_VOLTAGE_V (132.7979508f)
//! \brief Defines the analog voltage filter pole location, Hz
#define USER_M1_VOLTAGE_FILTER_POLE_Hz (338.1100618f)
//! \brief Defines the maximum current at the AD converter
#define USER_M1_ADC_FULL_SCALE_CURRENT_A (47.14285714f) // gain=10
For Hall's current sensor feedback, do we need to adjust USER_M1_ADC_FULL_SCALE_CURRENT_A value?
Apart from this, does anything need to be considered for Hall's current sensor?
A similar kind of custom board ( Drv8353 chip) with Shunt current feedback is working fine and smoothly.
This issue is very urgent for us.Kindly, please respond as fast as possible.
Thank You
Regards
Shankar Prabhakaran
