FAQ

How do I set the power supply to use in constant current mode (CC mode)?

Category
How to Use Power Supply

The constant current (CC) mode is a control that always provides a constant current even if the load condition changes. To operate the power supply in constant current (CC) mode, set the power supply to a voltage value higher than the voltage value calculated by Ohm's law from the current value to be passed through the load and the resistance value of the load, and the power supply will operate in constant current mode.
For example, if you want to apply a current of 2A to a resistive load of 5 ohms, set the current value to 2A and the voltage value to 10V or higher, and you will be in CC mode. Also, if the voltage is set to 10V and the current value is changed to 2A or less, the current can be controlled as constant current mode. If the voltage value is set to 50V, the current setting will operate as constant current mode in the range of 0 to 10A. If the current value is set to 2A and the voltage setting is lowered from 10V to 8V, it will automatically switch to constant voltage (CV) mode and the current value will be 1.6A.

Warning: If the output is turned on without connecting a load, the voltage at the output terminal will reach the maximum voltage setting. If a load is connected in this state, the load may be damaged. Be sure to connect the load before turning on the output.

Note: When connecting to an actual load, it is recommended to set the safe range of voltage and current as the limit, considering the heat capacity of the load and the range of use, and confirm the safety from the lower voltage and current values.

Main applications of constant current (CC) mode

  • Light emitting diodes (LED)
  • Laser diodes (LD)
  • Battery charging
  • Plating
  • Electrochemistry such as oxidation-reduction