METHOD AND CIRCUIT ARRANGEMENT FOR VERIFYING ELECTRIC CONTACTS BETWEEN A FIRST OUTPUT PIN OF A FIRST POWER CIRCUIT BREAKER OF A POWER CIRCUIT BREAKER DEVICE AND AN EXTERNAL NODE AND A SECOND OUTPUT PIN OF A SECOND POWER CIRCUIT BREAKER OF SAID POWER CIRCUIT BREAKER DEVICE AND NODE

Resistors (7,8) are connected to form voltage divider between test voltage (Vt) and earth (13). Comparators (11,12) test if electrical contact (1a) exists between output pin (2) and power switch (3) and contact (1b) exists between output pin (4) and power switch (5). Comparator (11) compares first v...

Full description

Saved in:
Bibliographic Details
Main Authors ARNDT, BASTIAN, WOLFARTH, GUNTHER
Format Patent
LanguageEnglish
French
German
Published 17.10.2007
Subjects
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
PULSE TECHNIQUE
TESTING
Online AccessGet full text

Cover

More Information
Summary:Resistors (7,8) are connected to form voltage divider between test voltage (Vt) and earth (13). Comparators (11,12) test if electrical contact (1a) exists between output pin (2) and power switch (3) and contact (1b) exists between output pin (4) and power switch (5). Comparator (11) compares first voltage (U1) at output pin (2) with first reference voltage (Uref) and second comparator (12) compares second voltage (U2) at output pin (4) with reference voltage. An interruption of contact 1a or 1b indicated by the voltage logic level, shows that the device (6) is faulty. An independent claim is also included for a circuit arrangement for verifying of electrical contact between an output pin (2,4) of a power switch (3,5) and an external node.
Bibliography:Application Number: EP20050816268