I would like to find out if the below is normal.
I have a circuit that drops voltage from 26.4 Volts to 13.9 volts, which then drives a day night switch which switches a load of 0.733 Amps at 10.2 watts.
When I connect the voltage controller the heat sink does not get hot. As soon as I connect the day night switch without the load the heat sink starts to get hot. When the day night switch comes on the heat sink get very hot.
I have put a fan inside the housing it is mounted 100mm away from the heat sink blowing air onto the heat sink and then out through holes behind the hat sink.
I would like to find out the most efficient way of cooling the heat sink, where to place the fan to get the most efficient cooling and if the generated heat is correct.
I would like to understand a more efficient way of dissipating the heat.
I have a circuit that drops voltage from 26.4 Volts to 13.9 volts, which then drives a day night switch which switches a load of 0.733 Amps at 10.2 watts.
When I connect the voltage controller the heat sink does not get hot. As soon as I connect the day night switch without the load the heat sink starts to get hot. When the day night switch comes on the heat sink get very hot.
I have put a fan inside the housing it is mounted 100mm away from the heat sink blowing air onto the heat sink and then out through holes behind the hat sink.
I would like to find out the most efficient way of cooling the heat sink, where to place the fan to get the most efficient cooling and if the generated heat is correct.
I would like to understand a more efficient way of dissipating the heat.