Series 2280 Precision DC Power Supply Reference Manual  Section 2: General operation 
077085503 / March 2019  2-73 
 
Figure 52: Constant voltage mode 
 
Crossover from the constant-voltage mode to the constant-current mode also occurs automatically in 
response to an increase in load. For example, connect a 5 Ω resistor to the binding posts on the front 
panel, set the voltage to 25 V and current limit to 1.0 A, and turn on the output. The power supply is 
operating in CC mode. For details, refer to the following figure. 
Figure 53: Constant current mode