A power switch includes a first power transistor having a first source electrode, a first gate electrode, and a first drain electrode, and a second power transistor having a second source electrode, a second gate electrode, and a second drain electrode. The power switch further includes a first pilot...http://www.google.com.hk/patents/US8183892?utm_source=gb-gplus-share專利 US8183892 - Monolithic low impedance dual gate current sense MOSFET
