Patent ID: 11955957
Assignee: INFINEON TECHNOLOGIES AG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A circuit for driving an electronic switch, the circuit comprising:
a control circuit configured to trigger a switch-on and a switch-off of the electronic switch in accordance with an input signal, wherein the control circuit is further configured to trigger the switch-off of the electronic switch in response to an over-current signal signaling an over-current state; and
a current monitoring circuit configured to signal the over-current state based on a current sense signal and a current-time characteristic which depends on a supply voltage received at a supply node, wherein the current monitoring circuit comprises:
a filter having a time constant that is configured to be modified based on the supply voltage, and
the filter is configured to receive an first signal that depends on the current sense signal representing a load current through the electronic switch.