Information

A.
CC Mode
OPERATING MODE
The PEL-3000E series provides four fundamental operating modes
and three add-on modes of CC, CR and CP separately combining
with CV. Users can set different load condition under different
operating modes such as setting operating range for load level,
Current Slew Rate, input voltage and load current. The input
voltage range has two levels - high and low. The load current
operating range has two levels - high and low current levels
which possess different resolution to meet test requirements
of different power product specifications.
Under constant current mode, electronic load will sink the
amount of current users has set. Different current settings via
CC mode allow users to test the voltage changes of DC power
supply which is called load regulation rate test.
C.R Mode
C.V Mode
Under constant resistance mode, electronic load will sink load
current, which is linearly direct proportion to input voltage. This
mode can be utilized in testing voltage or the activation and
current limit of power supply.
Under constant voltage mode, electronic load will sink sufficient
current to regulate the voltage source to the set value. This mode
allows users not only to test current limit function of power
supply, but also to simulate battery operation in testing battery
chargers.
C.P Mode
Under constant power mode, electronic load will sink load current,
which is indirect proportion to input voltage to reach preset
constant power requirement. Hence, the changes of input voltage
will have indirect proportion effect on current sinking so as to
reach constant power control.
+CV mode can be selected under CC, CR or CP mode. When +CV
mode function is turned on and electronic load sinks more current
than the maximum current of power supply under test, electronic
load will automatically switch to CV mode. It is because that the
current sunk is the maximum current of power device. Therefore,
power supply will switch to CC mode and PEL-3000E will switch to
CV mode to limit electronic load from sinking the total current of
power supply so as to prevent power supply under test from
damaging. Electronic load will cease operation once the voltage
of DUT is lower than the set voltage under +CV mode.
CC+CV Mode CR+CV Mode CP+CV Mode
B.
STATIC/DYNAMIC/SEQUENCE MODE
The PEL-3000E series, according to different test conditions, step or continuous changes, test speeds, and selectable modes,
has three operating functions: Static, Dynamic and Sequence.
Operation
Function
Operating Condition
Selection
Operating Modes
Adjustable Condition
Setting
Sequence Step
Combination
Other Functions
Single fixed
condition
All modes
Value A/
Value B
Slew Rate
N/A
N/A
Static
Dynamic
Sequence
Fast
Normal
Selection from more than two conditions
Selection from more than two conditions Selection between two conditions
Each condition is able to be used in different mode
All modes
Each condition must use same mode
Support CC or CR mode
Two conditions using same mode
Support CC or CR mode
Level
Timer
Slew Rate
Others…
10 Sequence
1,000 steps
1ms/step
Trigger Out function
Ramp function
Level
Timer
Slew Rate
Others…
1 Sequence
1,000 steps
25 s/stepμ
Trigger Out function
Level 1/Level 2
Timer 1/Timer 2
Slew Rate 1/Slew Rate 2
N/A
Trigger Out function