Complete energy utilization improves run time of a supercap ride-through application by 40%
George H. Barbehenn
Abstract
A complete 3.3V/200mA ride-through application that maximizes the amount of power extracted from the supercapacitor is described.
Keywords
Power ride through
LTC4425 supercapacitor charger
Introduction
Many electronic systems require a local power source that allows them to ride through brief main power interruptions without shutting down. Some local power sources must be available to carry out a controlled shutdown if the main power input is abruptly removed.
A battery backup can supply power in the event of a mains shutdown, but batteries are not well suited to this particular application. Although ...
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