Rendon
Newbie level 4
- Joined
- Jun 23, 2012
- Messages
- 7
- Helped
- 0
- Reputation
- 0
- Reaction score
- 0
- Trophy points
- 1,281
- Location
- South Africa
- Activity points
- 1,340
I have configured the LM723 as a negative regulator as per figure 18 in the data sheet EXACTLY as shown and have checked it many times, but it doesn't work no matter what. I have measured the voltages at the inv. and N.I pins; there is a significant voltage difference. The output at the transistor is between 9 and 10 volts, no matter what I set my feedback ratio to. The reference divider ratio is fixed at 50% (i.e R3 = R4). This is freaking me out. Why the hell does it not work?
Any help or insight will be appreciated.
Any help or insight will be appreciated.