When the preferred voltage source for a static transfer switch is a UPS, there can be a brief interruption in the voltage received from the UPS while the UPS is switching from economy mode to normal mode. Operation of the static transfer switch can be impr...

A discharge circuit for increasing discharge time of battery includes a discharging IC and a delay discharge circuit. When the discharging IC detects any voltage input, a minimum operating voltage of the discharging IC is set to 6.3V, when the discharging ...

Disclosed is an apparatus for reducing standby power, which is capable of minimizing standby power losses by using an electric double layer capacitor (ELDC). The apparatus includes: an electric double layer capacitor for converting electrical energy suppli...

An improved electrical switchboard comprising one or more differential and/or magnetothermal switches, including a transitory power supply means operating in case of blackout or interruption of the electric power delivery, said power supply means being a r...