So I was looking at an amplifier board and I noticed that the protection IC (uPC1237V) and relay (24V Omron) are powered from a L7824CV.
The L7824CV is connected through a 220 Ohm 2W resistor to the main +60V supply (10,000uF 80V Capacitor). The output of the L7824CV is connected to a 1000uF electrolytic bypass to ground.
When the amplifier powers up the relay is off (uPC1237V time delay) so there is little current draw except for charging the 1000uF (briefly) plus the quiescent current for the L7824CV and the uPC1237V.
I do not feel too confident that this L7824CV is going to be very reliable.
Thoughts?
The L7824CV is connected through a 220 Ohm 2W resistor to the main +60V supply (10,000uF 80V Capacitor). The output of the L7824CV is connected to a 1000uF electrolytic bypass to ground.
When the amplifier powers up the relay is off (uPC1237V time delay) so there is little current draw except for charging the 1000uF (briefly) plus the quiescent current for the L7824CV and the uPC1237V.
I do not feel too confident that this L7824CV is going to be very reliable.
Thoughts?
