Hello,
I have a 12(v) DC circuit of a lighting system for a model. At the moment it is all already built and there is a switch for every group of 1.2W bulbs (4 bulbs each), all the bulbs are in parallel. The power source is a 12(v)/8(A) transformer.
We want to have the effect of fading when the light turns off. This we achieved by using capacitors, one capacitor connected in parallel to each of the bulbs. However we want to control the effect and have it only when we want it. For that we did a test with relay devices, used for car electricity, connected to a 6(v) circuit. Here is an example (in order to make it easier to understand I made a smaller simpler circuit of 4 bulbs only):
**broken link removed**
(Just to make things clear, the two circuits are separated and insulated).
Now the problem is that these relay devices are quite noisy and can not be used for the real project. Therefor I am looking for an alternative way rather than the relays to do that.
I heard that what I need might be transistors, but I have no knowledge of them or how to use them for the purpose. Do you have any idea?
Best Regards,
Raz.
I have a 12(v) DC circuit of a lighting system for a model. At the moment it is all already built and there is a switch for every group of 1.2W bulbs (4 bulbs each), all the bulbs are in parallel. The power source is a 12(v)/8(A) transformer.
We want to have the effect of fading when the light turns off. This we achieved by using capacitors, one capacitor connected in parallel to each of the bulbs. However we want to control the effect and have it only when we want it. For that we did a test with relay devices, used for car electricity, connected to a 6(v) circuit. Here is an example (in order to make it easier to understand I made a smaller simpler circuit of 4 bulbs only):
**broken link removed**
(Just to make things clear, the two circuits are separated and insulated).
Now the problem is that these relay devices are quite noisy and can not be used for the real project. Therefor I am looking for an alternative way rather than the relays to do that.
I heard that what I need might be transistors, but I have no knowledge of them or how to use them for the purpose. Do you have any idea?
Best Regards,
Raz.