The InnovationQ application will be updated on Sunday, May 31st from 10am-noon ET. You may experience brief service interruptions during that time.
Browse Prior Art Database

Memory Mapped In-line DC Current Sensor

IP.com Disclosure Number: IPCOM000012649D
Original Publication Date: 2003-May-19
Included in the Prior Art Database: 2003-May-19

Publishing Venue



A simple and fast memory mapped current sensor is presented using voltage comparators, a latch, and various passives. In contrast to Analog to Digital converter solutions, this system is comparatively inexpensive and extremely fast, but suffers from decreased accuracy. This simple current sensor is useful in applications such as motor drives and uninterruptible power supplies, where knowing load current may not be necessary for operation, but predefined current trip points are present which indicate certain fault scenarios.