Title: Blanking the screen.
Post by: SP3OSJ on 15. April 2018, 10:11:06
Screen blanking in the OVI40 increases the power consumption by comparing with the weakest lighting.
mcHF is the opposite.
Why?
Film experiment:
https://youtu.be/yFPREBMhtHw (https://youtu.be/yFPREBMhtHw) |
Title: Re:Blanking the screen.
Post by: DF8OE on 15. April 2018, 10:41:13
Measurement failure.
Dimming is done via pulse driving of LCD backlight. If your measurement equipment reacts on the pulses it shows "nonsense".
I have just done measurement, too:
full brightness against lowest brightness differs 50mA (of course dimmed brightness does have lowest power consumption).
Most cheap chinese digital measurement equipments are easily to confuse using pulsed current/voltage. The precise way is to use an old analogue instrument ::) (or an expensiver digital one).
vy 73
Andreas |
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