on Orders $99+
on Orders $99+
Once you have determined which tests you need to perform, you will be ready to select the right DC electronic load. The four major modes of operation for an electronic load are constant current (CC), constant voltage (CV), constant resistance (CR), and constant power (CP).
A well-designed electronic load will always control the current. No matter what mode the load is in, it is always controlling the current, which will allow you to set a current level that the DC load will draw regardless of any changes in voltage.
Constant resistance (CR) mode allows you to set the resistance value. The load will then adjust the current draw inversely to compensate for any change to the testing voltage.
Constant voltage (CV) mode allows you to set a fixed voltage. The electronic load will sink the necessary current to keep the voltage at the set level.
Constant power (CP) mode allows you to set the wattage level required for your test, and then the load will adjust the current draw proportionately to compensate for any changes in the voltage. These settings will remain constant, unless there is an event that triggers one of the protection modes.
DC electronic loads typically include standard PC interface features including RS-232 and USB (GPIB may also be provided). Using your computer to control and record testing data through an electronic load can help you set the DC load's control parameters as well as record all events that occur during the testing period.
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