Programmable DC Electronic Load 63600 Series Operation & Programming Manual
Load will automatically stop sink current and finish the operation after the timing
measurement is taken without pressing the key.
For battery discharge test, to protect the Electronic Load from damage,
please refer to Appendix A Precautions for Loading Battery.
3.13 Sine Wave Dynamic
If the load has a unique sine wave loading current that allows the user to set the loading
current bias (I_DC), the loading sine wave (I_AC) and sine wave frequency (Frequency). The
lowest point of sine wave cannot be smaller than 0 ampere. As Figure 3-20 shows Ch1 is the
actual loading current waveform and Ch2 is the voltage waveform of the UUT (AC
component.)
Figure 3-20
The dynamic current loading bandwidth varies with the load designed on the market and the
response speed of loading slow rate is different by the bandwidth. For instance, using two
loads of different brands to set the dynamic current conditions as I
max
= 6A, I
min
= 1A, T1=
0.1ms, T2= 0.9ms, Slew Up= 0.23A/μs and Slew Down = 0.23A/μs to test the voltage
transient response character of the same power supply. The result shows in Figure 3-21
Load of A Brand and Figure 3-22 Load of B Brand are set in the same current slew rate but
with different voltage waveform. Therefore, using sine wave loading to test the dynamic load
modulation rate will not cause any measurement error due to different load design and
different bandwidth. It will make the test more perfect.
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