juanGuzman182
New Member
Hi to all
I have been trying to come up with a solution to a problem that I'm having with a circuit that I designed, I have not been able to come up with a solution and i would appreciate it any help.
So, I'm trying to basically isolate the input of my circuit from the rest of my circuit.
The input is a Passive and active input (0-10V Dimmer- 0-10V power source) and the (0-10V) signal is being isolated and transmitted using an optoisolator.
The isolation has been successful and the range of dimming for active and passive input is fine.
The problem arises when I connect more than one of my circuits to the same Active dimmer. The Voltage range for the active dimmer when one circuit is connected is (0.6v-10V), however when two circuits are connected the range is (1.2V -10V), connecting a third circuit would make the range (1.8-10V).
I have uploaded the schematics of the circuits that I'm using.
It seems that when I connect the active dimmer to control multiple circuits the voltage difference of each controller is adding up .
I tried to include a diode, which helped me to reduce it but it makes that my circuit doesn't work with the passive dimmer.
So my ultimate goal is to be able to isolate the active/Passive dimmer input in my circuit and being able to connect multiple circuits using just one Active or passive dimmer, as of now i have been able to achieve everything but the part of connecting the Active dimmer to multiple circuits because the range gets reduced.
Any help, advice or comment would be appreciated
I have been trying to come up with a solution to a problem that I'm having with a circuit that I designed, I have not been able to come up with a solution and i would appreciate it any help.
So, I'm trying to basically isolate the input of my circuit from the rest of my circuit.
The input is a Passive and active input (0-10V Dimmer- 0-10V power source) and the (0-10V) signal is being isolated and transmitted using an optoisolator.
The isolation has been successful and the range of dimming for active and passive input is fine.
The problem arises when I connect more than one of my circuits to the same Active dimmer. The Voltage range for the active dimmer when one circuit is connected is (0.6v-10V), however when two circuits are connected the range is (1.2V -10V), connecting a third circuit would make the range (1.8-10V).
I have uploaded the schematics of the circuits that I'm using.
It seems that when I connect the active dimmer to control multiple circuits the voltage difference of each controller is adding up .
I tried to include a diode, which helped me to reduce it but it makes that my circuit doesn't work with the passive dimmer.
So my ultimate goal is to be able to isolate the active/Passive dimmer input in my circuit and being able to connect multiple circuits using just one Active or passive dimmer, as of now i have been able to achieve everything but the part of connecting the Active dimmer to multiple circuits because the range gets reduced.
Any help, advice or comment would be appreciated
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