Patent · US Expired

Circuit arrangement for measuring currents at high potential

US4209743A · kind A · utility

2Cited by

2References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Bruno Muller · Muhen, CH
Ulrich Baumgartl · Berlin, DE
Werner Kohler

Key dates

Filing date	Aug 24, 1978
Grant date	Jun 24, 1980
Priority date	—
Expiry date	Aug 24, 1998

Classification

Technology area (CPC G)Physics
CPC primaryG01R1/06777
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

In a circuit arrangement for measuring currents at high potential, a capacitor, charged in accordance with the current to be measured, is shunted by a light emitting diode which generates a light pulse sequence with a frequency proportional to the current. In series with the diode is a switching element with a control terminal, to which the output of a control device is connected. The input of the control device is connected to a threshold arrangement disposed parallel to the capacitor and the supply terminals of the control device are connected to the capacitor.

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