A voltage probe is used for measuring the voltage difference between two test points where neither test point is at ground. Voltage probes can be used for signals up to 6000 V. These probes are the best choice for making non-ground referenced, floating or isolated measurements in large part due to their common mode rejection capability.

High Voltage Differential Probes

High voltage differential probes utilize high attenuation and matched differential inputs to measure high voltages with very reasonable CMRR performance. These probes are rated for 1, 2, or 6 kV common-mode operations with wide differential voltage swings - ideal for power electronics circuits.

They are optimized for measuring HV signals such as 50/60 Hz AC Line inputs and power electronics DC Bus/Link voltages, PWM Bridge/Drive outputs, DC-DC converter inputs/outputs, high frequency step-up/down transformer voltages, and inductor, capacitor and snubber diode voltages.

In some cases, they may also provide reasonable performance for measuring gate-drive voltages and low voltage sensor voltages.