301Views3Replies
-5v Voltage Regulator
I want to make a -5v Voltage Regulator...
Does anyone know if I replace the 7805 regulator with a 7905 would that be enough, or would the capacitors have to be different values?
5v Voltage Regulator Schematics
I want to make a -5v Voltage Regulator...
Does anyone know if I replace the 7805 regulator with a 7905 would that be enough, or would the capacitors have to be different values?
5v Voltage Regulator Schematics
Discussions
13 years ago
At the risk of stating the obvious - don't forget that it is only -5V with respect to something else e.g., a common ground or common 0V rail. Cheers, Pat. Pending
13 years ago
just the polarities right? not the values? so i can use the same caps.
13 years ago
Polarities of chemical capacitors will have to be inverted.
Here is a example from National Semiconductor :
http://www.national.com/mpf/LM/LM7905.html