PMK BumbleBee Bedienungsanleitung Seite 25

Safety Information
BumbleBee has a rated Input Voltage of 2000V No Measurement Category or 1000V CAT III.
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Note that the max. input voltage rating of the probe decreases as the frequency of the
applied signal increases (see Voltage Derating on page 27).
See the relevant section of this manual for further information on maximum input voltage,
voltage derating and definitions of relevant IEC Measurement Categories (CAT).
(see IEC Measurement Categories on page 22 and 23).
BumbleBee is designed for common mode measurement in the range for ± 2 000V only.
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About BumbleBee
BumbleBee is a 400 MHz, 2 kV no measurement category or 1kV CAT III high-voltage differential
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probe, that can be used with every instrument having 50 Ω Input Impedance. The probe is very
effective in power device evaluation such as measurements in IGBT circuits used in the design of
motor drives, switching power supplies and frequency converters, especially 1700 V IGBT modules
for inverters and converters. BumbleBee
bandwidths of up to 400 MHz. Measurments at GaN and SiC modules as part of new semicon-
ductor techniques profit from that in particular.
It provides a 4 mode attenuation, which allows higher resolution measurements. The probe pro-
vides overload indicators for each input channel as well as for the output. That makes it easy to
observe, that the differential probe is working in the specified range. The probe also provides an
active offset correction in a range of ± 4 V, related to the output voltage, with a resolution of 15 bits.
These and many other functions can be remotely controlled with the PC-software "PMK Probe
Control". The software is free and included in the scope of delivery of PMKs PS-02 and PS-03
power supplies. The intuitive grafical user interface makes all interactions with BumbleBee
and easy.
Measurement Princible
The differential probe consists of two attenuators, which are differentially matched. The voltage
measurements of these attenuators is conducted ground-referenced. The read voltages are provi-
ded to a differential amplifier, where the differential voltage is amplified according to the choosen
attenuation. The output signal is fed over a driver stage to the 50 Ω input of a measuring device.
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is also very effective in fast transient measurements with
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BumbleBee
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EN
clear
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