.ut-cat{color:#333;font-family:Arial,Helvetica,sans-serif;line-height:1.5;} .ut-cat h4{color:#1a1a1a;font-size:1.15em;margin:1.5em 0 .5em;padding-bottom:.25em;border-bottom:2px solid #ccc;} .ut-cat h2{color:#1a1a1a;font-size:1.25em;margin:1.2em 0 .4em;} .ut-cat h3{color:#222;font-size:1.05em;margin:1em 0 .3em;} .ut-cat p{margin:.6em 0;} .ut-cat ul{margin:.5em 0;padding-left:1.4em;}.ut-cat li{margin:.25em 0;} .ut-cat img{max-width:100%;height:auto;} .ut-cat table{border-collapse:collapse;width:100%;margin:.5em 0;} .ut-cat th,.ut-cat td{border:1px solid #ddd;padding:6px 10px;text-align:left;vertical-align:top;} .ut-cat td strong{color:#222;} Overview The MSO3000HD-PWR transforms your MSO3000HD Series oscilloscope into a power measurement instrument. Automated switching loss, SOA, ripple, harmonics, THD, efficiency, and power quality analysis. For power supply, motor drive, inverter, and switching converter design/validation/troubleshooting. Eliminates hours of manual measurement setup. The option is enabled by a software license keyed to the oscilloscope's serial number and is permanent for the life of the instrument. Key Features Switching Loss — Calculates energy per switching transition for MOSFETs, IGBTs. Essential for thermal design and efficiency. Safe Operating Area — Plots V×I trajectories against device limits during transients, startup, and faults. Ripple Analysis — Output ripple amplitude and frequency content. Identifies sources: switching frequency, ESR, load transients. Harmonics and THD — Up to 50th harmonic and total harmonic distortion. Validates IEC 61000-3-2 compliance. Efficiency — Input vs. output power for real-time converter efficiency. No external power analyzer needed. Lifetime License Activation — activate once, owned for the life of the instrument. No subscriptions, no renewals, no maintenance fees. When You Need This Option The option fits the following workflows: SMPS Design — Quantify switching losses in a flyback MOSFET. Connect probes, select measurement, get per-cycle loss data automatically. EV Charging Debug — Charger failing efficiency targets. Compare input/output power in real time, check SOA for device stress. Compatibility This option is compatible with all MSO3000HD Series oscilloscopes: MSO3024HD (200 MHz), MSO3034HD (350 MHz), MSO3054HD (500 MHz). The same capability is offered on other UNI-T oscilloscope families: MSO2000X, MSO3000X, MSO5000HD, MSO7000X, MSO8000HD, UPO2000HD, UPO7000L. Frequently Asked Questions Do I need special probes? At least one current probe — UT-CP03 (30A) or UT-CP04 (50A). A differential probe is recommended for floating voltage measurements. Same as a power analyzer? Different tools. Oscilloscope PWR excels at time-domain switching analysis (per-cycle loss, SOA, transients). A dedicated power analyzer like UTE310/UTE323 is better for steady-state with higher accuracy. Many engineers use both. How is this option activated? The option is enabled by a software license keyed to the oscilloscope's serial number. After purchase, the license is registered on the UNI-T website to generate the license file, which is then loaded onto the instrument from a USB drive through the option-install menu. Refer to the oscilloscope's user manual for the step-by-step procedure. Is the license permanent, or does it require renewal? The license is permanent — a one-time purchase that stays active for the life of the instrument. No subscriptions, no annual renewals, and no expiration.
