Hello folks,
New to the forum. Lots of great stuff on here. im teaching myself electronics. No other way to learn than to jump in, read, and experiment. I was hoping someone can help me with something ive been trying to figure out. I just recently learned what a comparator is. so it opened up a lot of info for me. Im trying to build a circuit using the comparator (as small as circuit as possible possible, weight is an issue.) to switch on and off another circuit that Ive been working with for a while now. A neat little thing known as the joule thief. I need to be able to switch off the joule thief once a supercap reaches its charged point (say 9 V) and on again once it comes down at about 7-8 V. Mostly for input battery preservation. I would like to keep the cap Voltage at no less than 7 volts or so. Is there a way to vary the on and off Voltages of the comparator circuit? Could I use small pots to do this? Any advice or scematics for this are welcomed. Thanks in advance
New to the forum. Lots of great stuff on here. im teaching myself electronics. No other way to learn than to jump in, read, and experiment. I was hoping someone can help me with something ive been trying to figure out. I just recently learned what a comparator is. so it opened up a lot of info for me. Im trying to build a circuit using the comparator (as small as circuit as possible possible, weight is an issue.) to switch on and off another circuit that Ive been working with for a while now. A neat little thing known as the joule thief. I need to be able to switch off the joule thief once a supercap reaches its charged point (say 9 V) and on again once it comes down at about 7-8 V. Mostly for input battery preservation. I would like to keep the cap Voltage at no less than 7 volts or so. Is there a way to vary the on and off Voltages of the comparator circuit? Could I use small pots to do this? Any advice or scematics for this are welcomed. Thanks in advance