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| Non-linear CV/CC control in schematic |
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| xavier60:
You would be able to tell how close operation is to the current limit threshold by moving the Pot. |
| Silver_Pharaoh:
--- Quote from: xavier60 on March 05, 2019, 01:59:54 am ---You would be able to tell how close operation is to the current limit threshold by moving the Pot. --- End quote --- Not sure what you mean by this? Voltage drop is very low across the 10 \$\Omega\$ resistor. I had to change the current limit pot value back to 10K. I forget why I changed it but it didn't let me reduce the current below 10A. I must have been tinkering with it and forgot to change it back. |
| xavier60:
The idea is to figure out wether the CL transistor inside of the LM723 is starting to conduct or not. The simplest way is to apply a load that just starts to make the output voltage drop then make a small adjustment to the current limit Pot to see if it affects the output voltage. Measuring the voltage between pins 2 and 3 would be useful. |
| Silver_Pharaoh:
--- Quote from: xavier60 on March 06, 2019, 01:01:54 am ---The idea is to figure out wether the CL transistor inside of the LM723 is starting to conduct or not. The simplest way is to apply a load that just starts to make the output voltage drop then make a small adjustment to the current limit Pot to see if it affects the output voltage. Measuring the voltage between pins 2 and 3 would be useful. --- End quote --- Ahh I see. Can't tinker much tonight, but I think you are correct in saying the CL transistor is starting to conduct. It's hard to tell because I don't have fine control with the current adjust and the voltage drops near full load, so the current adjust pot is already maxed out.. I reduced the balancing resistors to 0.8 \$\Omega\$ each and the voltage shot back up to 5.1V like I have it set. This pulling 12A at the output. Are the balancing resistors limiting max output current too much? |
| diane:
Wow, such a difference in if of possibility. I only did a patent on the idea, but if there is a possibility of creating without too much grevience, I will recommend that person's idea. Of course it may take another patent for idea. Read articals. About the building of assisted living quarters. 4 New ones were just finished within 5 to 10 miles of my area. They are filled and with waiting lists. Thank you for your help. |
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