Patent · US Active

Battery charging and measurement circuit

US10938403B2 · kind B2 · utility

0Cited by

4References

7Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Mustapha El Markhi · Richardson, US
Erhan Ozalevli · Dallas, US
Tuli Dake · Plano, US
Rohit Bhan · Plano, US

Key dates

Filing date	Nov 14, 2018
Grant date	Mar 2, 2021
Priority date	—
Expiry date	Mar 3, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH03M1/745
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

An example device comprises a digital-to-analog converter (DAC) comprising first and second transistors coupled to a first amplifier, the second transistor coupled to a first output of the DAC and to an output of the first amplifier, and third and fourth transistors coupled to the first amplifier and to a second output of the DAC, the third and fourth transistors switchably coupled to a voltage supply and to the first transistor. The device also comprises a first node coupled to the first output of the DAC and to a resistor. The device further includes a second node coupled to the second output of the DAC, and a second amplifier coupled to the second node and to the first transistor and switchably coupled to the third and fourth transistors. The device also comprises a comparator coupled to the first node.

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