Enable 1/f Noise Measurement Over 1A
应用文章
Power Electronics with GaN and SiC devices is a hot industry right now. This is because the power supply circuit with high power efficiency is expected by the recent eco-boom, and the device corresponding to it was developed. In addition, even in this Power Electronics application, the quality of 1/f noise performance of the devices used in power circuit is often required, and 1 / f noise measurement under High-Current conditions as well as High-Voltage has been required. Keysight E4727B is the only solution in the world that can meet that demand. The maximum current of the previous product, the Keysight E4727A, was up to 0.1A, but the E4727B has capability to do measurement more than 1A.
The maximum current is not determined by system specifications of the E4727B but can be expanded to the maximum current determined by the DC power supply prepared by the customer and the maximum power of the load resistance. This application note introduces an example of 1 / f noise measurement up to 1A for a SiC-MOSFET using Keysight E4727B.