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DRV8323R: 6-step commution with 6x PWM Mode
Part Number: DRV8323R
I have designed motor driver with DRV8323RH and 1xPWM mode is used.
I have thinked driver works well because motor rotates well.
But I found a strange things recently.
So I check them with BOOSTXL-DRV8323RH with TI GUI.
when GHA is pwm, GHB and GHC should low in the logic table.
But, GHB is low and GLB is low.
GHC is high and GLC is low(<-- strange)
so MOT_C is VM,
I attached the signal and experimet set-up
Could you check this?
I think it is related to previous question.(https://e2e.ti.com/support/motor-drivers/f/38/t/723387)
<experiment set up> hall sensor is connected and motor ABC wire is not connected.
GHA(YELLOW), GHB(CYAN), GLB(MAGENTA)
GHA(YELLOW), GHC(CYAN), GLC(MAGENTA)
MOT_A(YELLOW), MOT_B(CYAN), MOT_C(MAGENTA)
TI EVM GUI (10% duty is applied, VM is 30V)
We will look further into this point and get back to you.
Hector HernandezMotor Applications Team
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In reply to Adam Sidelsky:
I want check the gate signals with hall signals.
It is good to remain the hall state to check signals.
So I didn't connect motor power line.
If I connect the motor, It rotates well.
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