Hi,
I am driving TFT LCD backlight with 24 V smps adaptor. There are 6-series leds for backlight. At the same time i am driving a bldc motor, when the motor speed is increased there is a 34V transient voltage spikes. So, the spike causes light sparkling on the TFT LCD. For this i have used a 24V TVS diode, it clamps it a little but it did not work clearly, because i can still see the light spark on the screen when i increase the motor speed. I just want to learn whether a transistor-zener diode regulator circuit clamps the voltage spike clearly or not. Any advise ???
I am driving TFT LCD backlight with 24 V smps adaptor. There are 6-series leds for backlight. At the same time i am driving a bldc motor, when the motor speed is increased there is a 34V transient voltage spikes. So, the spike causes light sparkling on the TFT LCD. For this i have used a 24V TVS diode, it clamps it a little but it did not work clearly, because i can still see the light spark on the screen when i increase the motor speed. I just want to learn whether a transistor-zener diode regulator circuit clamps the voltage spike clearly or not. Any advise ???