Switch embedded integrated circuit and method for battery protection
US8564251B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2010 |
| Grant date | Oct 22, 2013 |
| Priority date | — |
| Expiry date | Feb 8, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/00309
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A switch embedded integrated circuit for battery protection includes a first pin to be connected with one terminal of a battery, a second pin to be connected with a load or charger, a third pin to be connected with another terminal of the battery, a MOSFET having a body diode thereof and connected between the first and second pins, a control logic circuit and a detection circuit. The detection circuit monitors the voltage between the first pin and the third pin to determine a detection signal for the control logic circuit to turn on or off the MOSFET and switch the direction of the body diode, thereby providing an over charging and an over discharging protection functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.