Scope probes aid energy efficient designs - Embedded.com

Scope probes aid energy efficient designs

Two additions to the TPP series of passive voltage probes are designed to help engineers tasked with developing more energy efficient power supplies and power semiconductors.

The Tektronix TPP0850 and TPP0502 probes are for use with the MSO/DPO5000 series and MSO/DPO4000B series oscilloscopes

The probes extend the TPP series architecture of high bandwidth, general purpose probes.

The TPP0850 is an 800 MHz bandwidth probe for high voltage signals up to 2500 Vpk-pk.  This is suitable for testing power semiconductors and switch-mode power supplies, which continue to increase in switching speed to minimize power loss, creating a need for faster rise time, higher bandwidth, and higher voltage probes.

The TPP0850 meets this need and can be used with switching transistor circuits operating at 1200 VRMS, above the voltage operating range of standard general purpose probes. It will also be able to accommodate emerging power applications that will require even faster rise time capabilities.

The TPP0502 provides 500 MHz bandwidth and a 2x attenuation factor for making low voltage measurements such as ripple, a common measurement on the output of power supplies. The low capacitive loading of the TPP0502 means long ground leads can be used with minimal impact on measurement quality, providing today’s engineer with the flexibility to move around their design without worrying about ground lead length.

Both the TPP0502 and TPP0850 offer smart communication with MSO/DPO5000 and MSO/DPO4000B series oscilloscopes.

through the TekVPI interface. This means the oscilloscope will automatically scale the display to match the attenuation factor of the probe to show the correct results.

A built-in auto-compensation feature on the probes automatically compensates the probe-oscilloscope pathway to provide the most accurate measurement every time the probe is connected to the oscilloscope.  Before now, engineers had to manually compensate their probes every time they moved the probe to a different channel on the oscilloscope or a different oscilloscope, a time consuming process.  

The DPOxPWR and DPOPWR software solutions also feature automated deskew of probes to ensure accurate measurements.

Generally available beginning in June, pricing for the TPP0502 is $585  and the TPP0850 is $750.

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