Compact and maintenance-free DC UPS systems with SuperCaps as energy storage (WK-intern) - With two new DC UPS systems, Bicker Elektronik, Donauwoerth/Germany, offers a particularly innovative and economical solution for the uninterrupted power supply of DC loads, such as motors, sensors, actuators or card readers. The two DC UPS modules UPSIC-1205 (12 VDC / 5A) and UPSIC-2403 (24 VDC / 3A) are equipped with ultracapacitors (so-called SuperCaps) as energy storage which operate according to the principle of double-layer capacitors (EDLC). The DC UPS systems protect against voltage fluctuations, flicker, voltage drops or failures of the supply voltage. Unlike batteries that store energy through