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NSG 439/439A ESD simulator for robotic solution
3.3. Effects on the EUT
The most significant interference components of an electrostatic discharge
are of a high frequency nature. The interference paths and effects have to be
assessed in the range from about 30 MHz to multi-GHz.
The extremely rapid rise time of a discharge affects an object under test mostly
through:
magnetic HF-coupling between electrical conductors in the electronics and
the discharge current path.
electrical coupling between the discharge current and signal lines. A discharge
current to the EUT flows proportionally through all the associated conductors
(earth, mains, data lines, screening, etc.) according to their relative impedance.
Malfunctions in insufficiently immune electronic equipment and systems make
themselves apparent through:
Program crashes
blocking of command sequences
incorrect commands, statuses or data being further processed
partial system resets (e.g. only in peripheral modules, which lead to errors
that the system does not recognize)
disturbance or destruction of interface modules
destruction of insufficiently protected MOS components.
Flexibility
The specifications prescribed in the standards
are more than fulfilled in every respect. The instru-
ment also offers many additional handy features.
Safety
The high voltage simulator is automatically deac-
tivated if the instrument remains unused for a
period of time.
Application field
Development optimization, type-approval, EMC
certification, batch testing (individually), testing of
fully installed systems.
