Abstract
A novel accurate CMOS current sensing circuit for the protection of smart power MOS switches, using the current mode approach is proposed. It has the advantage of not requiring any passive components and it is based on a CMOS current mode building block presenting a wide frequency bandwidth as well as temperature insensitivity. Two current sensing cells are necessary to detect open load, short-circuit and overcurrent situations. Detection is achieved by monitoring a small portion of the power switch current provided by a single-cell transistor (SENSEFET). The performance of these functions is analysed by electrical PSPICE simulations and experimental results obtained from a silicon test chip.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
