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News - General T&MOscilloscope Probes for Power Electronics Measurements20 March 2018 - Rohde & Schwarz broadened its portfolio of oscilloscope probes for power measurement with six new high voltage differential probe models and a 4 GHz power rail probe. The new R&S RT-ZHD high voltage differential probes are designed for complex measurements on power electronics with voltages up to 6000 V. Whereas the new R&S RT-ZPR40 with 4 GHz bandwidth enables scope users to find EMI issues on power rails that they were previously unable to isolate. The new R&S RT-ZHD high voltage differential probes offer a measurement bandwidth of up to 200 MHz, a particularly high common mode rejection ratio (CMRR) and at 0.5 percent, the best DC measurement accuracy available. Rohde & Schwarz also presents cost-efficient, high voltage differential probes with a 25 MHz bandwidth and very low inherent noise – ideal for general applications. Demand in the automotive industry for compact, highly efficient switched-mode power supplies, inverters and electric drives necessitates the use of leading-edge semiconductor components. This creates new challenges for T&M equipment. The new high voltage differential probes from Rohde & Schwarz enable measurements with outstanding signal integrity and are perfect for use with the new R&S RTM3000 and R&S RTA4000 embedded oscilloscopes. The new R&S RT-ZHD high voltage differential probes are ideal for measurements on modern power semiconductors. With a bandwidth of up to 200 MHz, they can even measure very fast switching edges. The excellent common mode rejection across the entire frequency range effectively suppresses fast-switching common mode signals. There are four different models with maximum peak voltages from 750 V to 6000 V. The integrated offset compensation operates independently of probe attenuation and the oscilloscope’s vertical settings. This makes it possible to measure even very small ripple voltages with a large DC component. Thanks to an offset compensation of up to 2000 V, the R&S RT-ZHD probes cover a very large range of measurement applications. At ± 0.5 percent, the R&S RT-ZHD high-voltage differential probes have the best DC measuring accuracy on the market. The probes also feature an integrated R&S ProbeMeter that measures DC offset with ± 0.1 percent accuracy. The readings are displayed directly on the oscilloscope. Two other new additions are the R&S RT-ZD002 and R&S RT-ZD003 differential probes with maximum input voltages up to 700 V and 1400 V, respectively. These 25 MHz probes boast very low inherent noise for their class of around 7 mV (RMS) and 14 mV (RMS), respectively. Their BNC interface makes them a perfect fit for R&S RTC1000, R&S RTB2000 and all standard oscilloscopes. The new R&S RT-ZPR40 offers a 4 GHz bandwidth with a direct SMA connection or a 50 Ω pigtail coax connection to uncover such problems. The probe is ideal for use with the 4 GHz and 6 GHz R&S RTO2000 oscilloscopes. This combination allows the user to take advantage of the oscilloscope’s powerful FFT functionality and serial protocol decoding. Joerg Fries, Vice President Market Segments for T&M at Rohde & Schwarz, states: “The 4 GHz probe enables scope users to find EMI issues on power rails that they were previously unable to isolate.” If 4 GHz bandwidth is not necessary, the R&S RT-ZPR20 probe with 2 GHz bandwidth is an attractive alternative. www.rohde-schwarz.com/ Related Articles: |
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