At the moment I am trying to build a circuit to slowly make a household lamp dim over about 10 minutes.
I have used logic gates to build the timing elements and am using mosphets to vary the resistance of the output for the dimming part but I am not sure how to gradually decrease the current to the mosphet to make it let less current through thus dimming the output lamp.
I would rather keep away from microcontrollers if possible.
I have been trying to work this out for a while now and have got no-where so I am resorting here.
Any help or pointers in the right direction are extremely appreciated.
I have used logic gates to build the timing elements and am using mosphets to vary the resistance of the output for the dimming part but I am not sure how to gradually decrease the current to the mosphet to make it let less current through thus dimming the output lamp.
I would rather keep away from microcontrollers if possible.
I have been trying to work this out for a while now and have got no-where so I am resorting here.
Any help or pointers in the right direction are extremely appreciated.