Method and apparatus for low power regulated output in battery powered electrotherapy devices
US6076018A · kind A · utility
113Cited by
27References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1998 |
| Grant date | Jun 13, 2000 |
| Priority date | — |
| Expiry date | Sep 4, 2018 |
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 a higher current than the small pulses from the battery, so the battery is drained at small instantaneous discharge rates compared to the high instantaneous discharge current from the capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.