Patent · US Active

Circuit for a small electric appliance with an accumulator and method for measuring a charging current

US9124118B2 · kind B2 · utility

1Cited by

14References

10Claims

0Family size

Assignee

The Braun Corporation · DE

Inventors

Torsten Klemm · Bad Soden, DE
Leo Faranda · Rodgau, DE
Kervin Heinrich Küchler · Darmstadt, DE

Key dates

Filing date	Sep 13, 2012
Grant date	Sep 1, 2015
Priority date	—
Expiry date	Feb 4, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02J2207/20
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit for a small electric appliance is disclosed. The circuit includes a battery (B); a control circuit (uC) for measuring the charging current of the battery (B); a DC-DC converter (DC/DC) which supplies the control circuit (uC) from the battery; and a current sensing resistor (R1), whose one end lies at a reference potential and whose other end is connected to the battery (B). The control circuit (uC) has a terminal which is at reference potential, and a measurement input which is related to the reference potential.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.