A drive circuit for airbag systems, for instance includes a differential transconductance amplifier having a first input node, a second input node, an output node coupled to the second input node via a feedback line; a transistor coupled between a drive node and a supply node configured to be coupled to a power supply source; a control node coupled to the control electrode of the transistor and the output node; a Zener diode arrangement having cathode and anode terminals coupled to the supply node and the first input node, respectively; a pull-up component arranged in parallel with the Zener diode arrangement; and an enable switch coupled to the first input node and referred to ground and switchable between a conductive state and a non-conductive state with the differential transconductance amplifier providing controlled current discharging/charging of the control node to make the transistor conductive/non-conductive, respectively.
Driver circuit, corresponding device and system
2021-10-05
Patent
Electronic Resource
English
DRIVER CIRCUIT WITH DISCHARGE CONTROL, CORRESPONDING ELECTRONIC SYSTEM AND VEHICLE
European Patent Office | 2024
|European Patent Office | 2021
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