Yokogawa Test & Measurement has released a new series of differential probes that can deliver “the measurements required to develop the next generation of higher-speed power devices.” The new PBDH0400 series of probes offers a maximum input voltage of 2,000 V and a frequency bandwidth of 400 MHz.

Yokogawa explains that the need to increase the energy efficiency of motors and inverters is particularly acute in the power electronics industry, as the growing number of next-generation power devices using silicon-carbide (SiC) technology requires the ultra-precise measurement of high-voltage and higher-speed signals.

This task requires performing measurements from an ungrounded (floating) potential, necessitating the use of differential probes rather than standard probes. Yokogawa therefore set about developing wide-bandwidth differential probes capable of measuring high-voltage and high-speed signals.

Initially, two models of the PBDH0400 series will be available: the 702922 model with a maximum input voltage of 2,000 V; and the 702921 with a maximum input voltage of 1,000 V.

The PBDH0400 series enables the accurate observation of tiny changes in high-speed switching signals. Excellent noise resistance allows the detection of events that can cause unexpected anomalies, including waveform overshoot and ringing.

The PBDH0400 series features the Yokogawa probe interface, which is designed to save cost and installation space by eliminating the need for an external power supply when connected to a Yokogawa oscilloscope. The probe attenuation ratio is automatically set through the interface so that measurement can start immediately after connection to the instrument.

Source: Yokogawa Test & Measurement