Hi,
I am working on a circuit to automatically switch over from a solar charged battery to rectified mains when the battery voltage drops to 10.5v.
Please see attached schematic.
I am concerned that when the op-amp comparitor de-energises the relay due to low bat voltage the relay will switch the load to rectified mains, as the load is removed from the bat the bat terminal voltage will rise and switch back and forth causing relay chatter. I am unsure how to overcome this so would appreciate some assistance.
If I have gone about this completly the wrong way let me know, I am not as experienced as some of you guys!
Many thanks
I should point out that the rectified mains will in fact go through a commercial buck - boost DCDC convertor for full regulation, this is capable of 8-24v in with regulated 12v out.
I am working on a circuit to automatically switch over from a solar charged battery to rectified mains when the battery voltage drops to 10.5v.
Please see attached schematic.
I am concerned that when the op-amp comparitor de-energises the relay due to low bat voltage the relay will switch the load to rectified mains, as the load is removed from the bat the bat terminal voltage will rise and switch back and forth causing relay chatter. I am unsure how to overcome this so would appreciate some assistance.
If I have gone about this completly the wrong way let me know, I am not as experienced as some of you guys!
Many thanks
I should point out that the rectified mains will in fact go through a commercial buck - boost DCDC convertor for full regulation, this is capable of 8-24v in with regulated 12v out.