Loading ...
Loading ...
Loading ...
SPS5000X Series User Manual
WWW.SIGLENT.COM 33
CC and CV Mode
When the power supply is operating in CV mode, the load receives a constant
voltage, and the current output changes with the load. When the load resistance
is too low to maintain the constant voltage, the power supply switches to CC
mode, and the current limit remains constant.
When the power supply is operating in constant current mode (CC), the load
receives constant current. Even if the output voltage is changed, the current
remains the same. If the load resistance increases to the current limit (Iset) or
greater, the power supply switches to CV mode. This switching point is called
the crossover point, and the local state is displayed as ALT.
The power supply operates in CV or CC mode, which is determined by the set
voltage (Vset), set current (Iset), load resistance (RL) and critical resistance (Rc,
Rc=Vset/Iset). When RL>Rc, the power supply runs in CV mode. At this time,
Vout=Vset, Iout<Iset. If RL decreases, when Iout=Iset, the power supply
switches to CC mode.
On the contrary, when the load resistance is less than the critical resistance,
the power supply operates in CC mode. In CC mode, the output current is equal
to Iset and the output voltage is less than Vset.
CV priority mode CC priority mode
Loading ...
Loading ...
Loading ...