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Operations introduction

Fig 4-4 CW mode

Ranges

You can select the lower or higher range for CW mode too. Power can be

edited in either of the two ranges. Low range will supply higher accuracy and

better resolution when you set lower power. Any value you set is outside the

maximum value of the LOW RANGE, you should select HIGH RANGE.

Immediate power level

You could set the power level via front panel. If the load is in CW mode, the new

setting power level immediately changes the input at a rate determined by the

slew rate. If the load is not in CW mode, the setting power level will be saved for

use until switch to CR mode.

Limited current value

Set limited current value under CW mode.

Transient power level

Set A/B transient power level on front panel or by remote operation, the load

can continuously toggle between the two levels when transient operation is

turned on.

4.3.5 Compound Operation Mode

IT8700P series electronic load has four compound operation modes: CV+CC,

CV+CR(CR-LED), CR+CC and CW+CC. These four compound operation

modes add A-Limit ( limited current value) setting function under CV/CR/CW

mode, which can help engineers solve the transient surge current problems,

avoid to trigger the protection function and protect DUT from burning.

⚫ The CV+CC mode can be applied to the load simulation battery and test

the charging station or the car charger. When the CV is working, the

maximum loading current is limited.

⚫ The CR+CC mode is commonly used in the testing of voltage limiting,

current limiting characteristics, constant voltage accuracy, and constant

ITech IT8700 Series User Manual

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