About 48 results
https://drivepatents.com/patents/1382389 · 7 May 2026
A hypercapacitor energy storage system or device facilitates fast charging, stable energy retention, high energy to weight storage and the like. The hypercapacitor comprises an ultracapacitor in electrical connection with an energy retainer which may compr...
https://drivepatents.com/patents/1381195 · 16 Apr 2026
A switch mode control circuit, comprising a battery link configured to connect to a battery, a capacitor link configured to connect to a capacitor, and a pre-charge circuit connected in series between the battery link and the capacitor link configured to l...
https://drivepatents.com/patents/1380281 · 26 Mar 2026
Invention relates to electric power engineering and power supply systems of different sectors of national economy: industrial, agricultural, defence, transport and amenity facilities. The invention improves generator operation reliability and consistency t...
https://drivepatents.com/patents/1380282 · 26 Mar 2026
A battery-powered device, such as a motorized window treatment, may provide power to an electrical load, such as a motor. The device may also include a control circuit and a communication circuit. In addition to the battery, the device may be configured to...
https://drivepatents.com/patents/1379829 · 19 Mar 2026
A vehicle power supply device includes a first relay (e.g., first positive-electrode side relay), and a second relay (e.g., second positive-electrode side relay), and a DC-DC converter. The DC-DC converter is provided between a first conductive path (e.g.,...
https://drivepatents.com/patents/1379830 · 19 Mar 2026
A system includes: a current interrupting module including: a first housing and a switching device in the first housing, the switching device configured to control an electrical connection between a first node of an electrical system and a second node of a...
https://drivepatents.com/patents/1379152 · 5 Mar 2026
Various embodiments of the teachings herein include a charging circuit to charge a capacitor of an optical alarm device, connected between the capacitor and a charging bus. The capacitor supplies power to a light-emitting unit. The charging circuit compris...
https://drivepatents.com/patents/1379151 · 5 Mar 2026
The present invention concerns a power supply arrangement for a portable electronic device. The inventive arrangement uses a large value capacitor in the power supply circuitry to extend the operational life of the battery. The large capacitor builds up th...
https://drivepatents.com/patents/1378183 · 22 Jan 2026
The battery output extension circuit has a switch to supply energy from a first rechargeable battery to charge a capacitor and a second rechargeable battery and then interrupt that supply of energy. The battery output extension circuit has another switch t...
https://drivepatents.com/patents/1377677 · 25 Dec 2025
An active capacitor discharging circuit for a power supply can include a current source adapted to be coupled between one or more capacitors and ground; and a voltage-controlled switch that selectively opens responsive to the power supply operating to redu...