Patent ID: 11901884
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC H  G | IPC H

Claim 13:
14. An electronic circuit comprising:
a first electronic switch configured to be connected in series to a load;
a second electronic switch configured to be connected in series to the load, wherein the second electronic switch includes a first source connection and a second source connection, wherein the second source connection is connected in series to the load;
an error detection circuit comprising a measuring resistor, the error detection circuit configured to:
compare a first measurement signal to a second measurement signal, and
in response to determining that the first measurement signal deviates from the second measurement signal by more than a threshold value, output an indication of an error,

wherein the first measurement signal is a drain-source voltage of the first electronic switch connected in series to the load,
wherein the first electronic switch conducts a first load current, and the first measurement signal comprises an indication of an amount of the first load current,
wherein the second measurement signal comprises a drain-source voltage of the second electronic switch,
wherein the second measurement signal comprises an indication of the amount of a second load current through the second electronic switch output by the second source connection, wherein the second source connection is connected in series to the load, and
wherein the threshold value defines the amount of the second load current multiplied by a constant, and
wherein selecting a value for the measuring resistor sets the value for the constant.