Battery protecting apparatus
US10170919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Jan 1, 2019 |
| Priority date | — |
| Expiry date | Sep 19, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A battery protecting apparatus includes: a charging/discharging control chip including a charging control FET and a discharging control FET connected to a secondary battery; a protecting chip configured to control, based on a voltage between both ends of the secondary battery, the FETs to prevent overcharging, over discharging, and an overcurrent; and a lead frame having a connection surface for a plurality of external terminals and another surface in conduction with the connection surface. Said another surface is electrically connected, via a conductive material, to terminals of the FETs formed on a front surface of the charging/discharging control chip. A back surface of the protecting chip faces a back surface of the charging/discharging control chip via an insulative member. Terminals of the protecting chip are electrically connected to said another surface through bonding wires. The charging/discharging control chip and the protecting chip are covered by a resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.