Memory Mapped In-line DC Current Sensor
Original Publication Date: 2003-May-19
Included in the Prior Art Database: 2003-May-19
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.