Embedded UPS Development

Today it’s important that the systems we use all day are functioning properly and constantly. Sadly, they also need constant electricity which can fail sometimes. To prevent a system to immediately crash with such a power fail, a UPS can be really helpful, especially when it comes to servers, data storages or even life supporting systems. A UPS, as his name describes, is an Uninterruptible Power Supply and provides emergency power to a load when the main power source fails. It guarantees to provide power for a defined amount of time so the supplied system can save critical data and shut down properly. And now comes the question how such a UPS function can be used in today’s embedded segment.

Because they all work with low DC and not AC voltage, a classical UPS would be not useful and way too big. Preventing a power failure is very important, especially when the embedded system is running on batteries. A solution here is a small embedded UPS with an ultra low power microcontroller and supercapacitors. It detects a power fail from an AC adapter or a battery and immediately provides the exact voltage and current to the connected load. It also gives a little notification to the connected system which can be used to trigger some scripts to properly turn off the system, close all communications and save all crucial data. This small embedded UPS exists in a form of a small PCB and can be adapted on different new designs in the future. The UPS can also be adapted in size and backup power, depending on what power has to be delivered to the connected system. It can provide backup power for a few seconds to a few minutes, depending on the connected system. Emtrion has developed a UPS which can be embedded in new designs. It is also possible to get a standalone version that can be used as add-on to existing designs.

Design prototype of embedded UPS
Design prototype of embedded UPS


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