Chroma 63200A Series Operation & Programming Manual page 41

High Power Electronic Load 63200A Series Operation & Programming Manual
Figure 3-4 Von LATCH ON Current Waveform
Voff_POT, set the unload voltage level
The Electronic Load will close the loading state (Load OFF) when the UUT output is dropped
to Voff. The Voff default is 0V.
The Electronic Load is able to simulate the loading conditions. When the UUT output
voltage reaches Von, the Electronic Load will start or stop loading current. The Electronic
Load starts loading current when it is ON and the input voltage exceeds Von and stops
loading when it is OFF or the input voltage is lower than Von.
1.
CAUTION
2.
Short Key, set for short circuit
Before using the short circuit function, the user has to set it first so that it can be controlled
by the Short key on the front panel or remotely. The settings are described as below.
Disable: Turn off the SHORT key function.
HOLD: Press and hold the SHORT key to function. The Short state is cleared when
released.
TOGGLE: Press SHORT key to enter into Short state and press SHORT key again to clear
the state.
The default is Disable.
1.
2.
3-10
To avoid logic error, Voff should be smaller than or equal to Von.
If Von_POT is set lower than the UUT minimum operating voltage,
it could cause the UUT unable to turn on or to generate overshoot
voltage or current when the load is set too high. Therefore, it is
necessary to consider if the UUT minimum operating voltage spec
is met when setting Von_POT.
When operating in Short mode, the Load uses the maximum rated
current and power of the range to simulate the short circuit.
It will not affect the programmed settings when Short is on, and the
Load input will return to the previous programmed value when Short
is off.
Von LATCH OFF Current Waveform