Hey,
I'd like to build a circuit which senses when the TV is set to standby mode and when the TV is back On.
So I thought of building a circuit which senses the current drawn by the TV.
I encountered a problem and i dont know how to overcome it.
I want this circuit to be able to detect standby mode of all TVs.
I noticed that the standby current drawn by new TVs is much lower than that drawn by old TVs.
So there could be a situation where a large old TV's standby current is about the same as the one drawn by a small new TV.
in such case, my circuit will fail to detect the standby mode of one of these TVs.
I know that I can add a self-calibration circuit, which will allow my circuit to learn the standby current and On current, which are drawn by each TV my circuit is connected to.
Is it possible to build such circuit without the self-calibration feature?
Thanks alot.
I'd like to build a circuit which senses when the TV is set to standby mode and when the TV is back On.
So I thought of building a circuit which senses the current drawn by the TV.
I encountered a problem and i dont know how to overcome it.
I want this circuit to be able to detect standby mode of all TVs.
I noticed that the standby current drawn by new TVs is much lower than that drawn by old TVs.
So there could be a situation where a large old TV's standby current is about the same as the one drawn by a small new TV.
in such case, my circuit will fail to detect the standby mode of one of these TVs.
I know that I can add a self-calibration circuit, which will allow my circuit to learn the standby current and On current, which are drawn by each TV my circuit is connected to.
Is it possible to build such circuit without the self-calibration feature?
Thanks alot.
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