Patent · US Active

Circuit arrangement for detecting undervoltage in an energy source

US8189312B2 · kind B2 · utility

2Cited by

9References

10Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Guenter Lohr · Echterdingen, DE
Andreas Kynast · Hildesheim, DE

Key dates

Filing date	Apr 25, 2007
Grant date	May 29, 2012
Priority date	—
Expiry date	Dec 20, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH02H3/24
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A circuit arrangement (10) for detecting undervoltage in an energy source (12) includes a transistor switch (48) and at least one further switch element (30). The transistor switch (48) and the further switch element (30) are of low impedance in an operating state of the circuit arrangement (10). The transistor switch (48) blocks the further switch element (30) for interrupting the voltage supply if a supply voltage (U) of the energy source (12) is below a defined voltage value (Us).

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