Method and apparatus for low power, regulated output in battery powered electrotherapy devices
US7127288B2 · kind B2 · utility
42Cited by
26References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Oct 24, 2006 |
| Priority date | — |
| Expiry date | Aug 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2310/23
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A device for controlling the discharge of a battery supplying an intermittent load, such as a nerve stimulation device. The device includes a controller which operates a switched inductor to feed a capacitor with numerous small pulses from the battery, thereby building up the charge and voltage on the capacitor, and occasionally discharging the capacitor to a load. The capacitor discharge is at higher current than the small pulses from the battery, so the battery is drained at small instantaneous discharge rates compared the too high instantaneous discharge current from the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.