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PWM dimming, from high duty cycle to low duty cycle(80%---50%), the human eye feels that the light will flash a few times

Question asked by Daniel li on May 7, 2019
Latest reply on May 23, 2019 by Felipe García

PWM dimming, from high duty cycle to low duty cycle(80%---50%), the human eye feels that the light will flash a few times

 

My pwm dimming program is

vAHI_TimerEnable(E_AHI_TIMER_1, 2, FALSE, FALSE, TRUE);

vAHI_TimerConfigureOutputs(E_AHI_TIMER_1, TRUE, TRUE); /* Invert PWM and disable gating */
vAHI_TimerClockSelect(E_AHI_TIMER_1, FALSE, TRUE);

vAHI_TimerStartRepeat(E_AHI_TIMER_1,Level_Value,4000000/477);

When I change the Level_Value value, the duty cycle will change.But the light flash a few times

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