Cable voltage drop compensation for battery chargers
US8143845B2 · kind B2 · utility
7Cited by
21References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Jul 17, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J2207/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charger may be configured to charge a battery by way of a charging cable. A DC gain of a voltage control loop of the battery charger may be limited to a predetermined value to compensate for voltage drop on the charging cable. For example, a DC gain of an error amplifier on the voltage control loop may be limited to a predetermined value for cable voltage drop compensation. The error amplifier may use a reference signal that is generated as a function of the error signal. The DC gain of the error amplifier may be limited by connecting a resistor to form an RC circuit on an output node of the error amplifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.