Hello,
http://www.meanwell.com/mw_search/ldd-h/LDD-H-SPEC.PDF
The Meanwell LDD series datasheet says this about remote on/off and PWM dimming:
DIM: ~-Vin>2.5~6VDC or open circuit
PWM Frequency: 100~1KHz
Does this mean that there should be 2.5-6v coming back out of the device to the power supply? When it says open circuit it's not talking about the -Vin wire being open but the PWM wire right?
PWM frequency means that any PWM signal in this band of 100-1Khz will work to drive the PWM? The duty cycle % being carried somewhere on that frequency band.
Thanks in advance.
http://www.meanwell.com/mw_search/ldd-h/LDD-H-SPEC.PDF
The Meanwell LDD series datasheet says this about remote on/off and PWM dimming:
DIM: ~-Vin>2.5~6VDC or open circuit
PWM Frequency: 100~1KHz
Does this mean that there should be 2.5-6v coming back out of the device to the power supply? When it says open circuit it's not talking about the -Vin wire being open but the PWM wire right?
PWM frequency means that any PWM signal in this band of 100-1Khz will work to drive the PWM? The duty cycle % being carried somewhere on that frequency band.
Thanks in advance.