Atec Chroma-63600 Series - Manual (Page 6)

Each 63600 load module contains 3 load current ranges with a minimum full
current operating voltage of 0.5V for each range. At the minimum voltage
(0.4V), the 63640-80-80 load can draw maximum current defined by the
current range. Based on this design, the 63600 is well suited for testing DC/DC
converters, fuel cells, and other low voltage - high current devices. Low voltage
operation is possible towards zero volts with corresponding reduced current
levels (see de-rating curves).
10A 20A 30A 40A 50A 60A 70A 80A
Current
Input Characteristics for Model 63640-80-80
DAQ
0.2
10
20
30
40
50
60
70
80
0.4 0.6 0.8 1.0 1.2
63630-600-15
1.4 1.6 1.8 2.0 (V)
(A)
Low Voltage & V-I Curve Operating Characteristics
(Typical of 63600 Series)
Note: All specifications are measured at load
input terminals. (Ambient temperature of 25 ˚C)
lOW VOlTAgE OPErATION
uSEr dEFINEd WAVEFOrm
In addition to common constant current, constant voltage, constant power and constant resistance modes of conventional loads, the 63600 accepts
digital data from DAQ cards or analog data from function generators to allow for complex waveforms to be created as depicted below. The 63600 also
provides an enhanced feature, User Defined Waveform (UDW), to simulate the actual current profiles and waveforms.
To reconstruct the actual current waveform, one can simply upload the captured waveform data into any module via a Chroma softpanel. Each module is
capable of storing up to 10 sets of waveforms with each comprising up to 1.2 millions data points to meet the more strenuous test requirements.
In addition, 63600 series also provides voltage peak measurements during actual loading conditions. Avoiding the need for using an oscilloscope to
capture the voltage peak, saving time and costs.