Introduction The B1505A Power Device Analyzer/ Curve Tracer is a single-box solution with next-generation curve tracer functionality that can accurately evaluate and characterize power devices at up to 3000 volts and 40 amps. It can also perform capaci- tance measurements at high voltage biases (up to 3000 V). The B1505A with EasyEXPERT software includes a curve tracer mode that combines familiar curve tracer functionality with the convenience of a PC-based instrument; this makes it easy for traditional curve-tracer users to become productive quickly. The net result is improved ease of use, better data analysis and simplified data management for the measurement of power devices and power circuitry.