Hello.
Automatically. "C.V." or "C.C." are depending on the limiting factor (voltage or current).
Example: Using a 12V lightbulb from a car, wired to the PSU.
Set the Korad to 7.00V and 2.200A. (We does not want it too bright or hot...)
Enable the output.
The Korad shows 7.00V and a (in the beginning decreasing) current lower then 2.200A.
After a while, letīs say, 1.600A. The PSU is in "C.V.", the voltage is the limiting factor.
Disable the output.
Change the setting of the current to 1.200A. (Again Voltage 7.00V.)
Enable the output.
The voltage drops down to 4.xxV (a little increasing at the beginning). After a while to 4.30V.
The current stays at 1.200A. The PSU is in "C.C.", now the current is the limiting factor.
Simple, isnīt it?
Why is it so? Ohmīs law gets you. Every time! Donīt forget: Every load has a resistance.
Further explenations required?
Greetings,
Hartmut
