About 48 results
https://drivepatents.com/patents/1392138 · 21 May 2025
An ultracapacitor module (100) includes an ultracapacitor cell stack (202) containing one or more ultracapacitor cells (204). The ultracapacitor module (100) includes a bidirectional boost/buck DC/DC converter (208). The ultracapacitor cell stack (202) and...
https://drivepatents.com/patents/1366779 · 11 Jul 2024
An energy storage module with bypass circuit is provided. The energy storage module includes a first battery pack, a first capacitor, a bypass circuit and a bidirectional isolated converter. The first capacitor is electrically connected between the positiv...
https://drivepatents.com/patents/969971 · 17 Sep 2014
Circuits are described that permit the efficient supply of power from a backplane such as that contained in a motherboard. In one embodiment, the power supply stores charge at a relatively high potential to permit a last transmission from a daughterboard w...
https://drivepatents.com/patents/970283 · 10 Sep 2014
The method involves connecting back-up capacitor (2) in parallel with a load (3). The load for the load current (IL) is received during the period of the load pulse took charge from the storage capacitor according to the load pulse recovery phase and durat...
https://drivepatents.com/patents/971897 · 30 Jul 2014
The device has two electrical conducting elements (38,40) that are laid between the voltages of the intermediate circuit (28). The two capacitors (46,48) and electrical conducting elements are connected in series, so that the capacitor voltages (Uc1,Uc2) a...
https://drivepatents.com/patents/971888 · 30 Jul 2014
The arrangement has electrical conducting elements (38, 40) between which intermediate circuit voltage (Uzk) lies. Capacitors (46, 48) are connected to a series circuit (50). A balancing circuit (60) balances capacitor voltages (Ucl, Uc2). The balancing ci...
https://drivepatents.com/patents/978195 · 26 Feb 2014
A system and method of improving the power efficiency of a receiver with a low noise amplifier (LNA) for low duty cycle applications. A bias voltage generating apparatus is provided that uses a residual voltage from a prior operation to establish the curre...
https://drivepatents.com/patents/978498 · 12 Feb 2014
A power supply circuit (20) includes a rectifier (25) , a charging circuit 26), and a storage capacitor (22). An AC signal (VAC) is rectified by the rectifier (25) thereby generating a rectified signal (VR) between a first node (43) and a ground node (GND)...
https://drivepatents.com/patents/984915 · 5 Jun 2013
The present invention relates to an energy converter connectable to at least one first generator (1101), for converting energy received from the at least one first generator, characterized in that the energy converter is further connectable to a plurality ...
https://drivepatents.com/patents/990498 · 22 May 2013
The present invention relates to emergency warning systems, such as sirens, beacons, and emergency lights, designed to guarantee light or acoustic warning for a control system or device, even in the absence of normal primary energy supply. More inparticula...