Patent ID: 11955790
Assignee: LISA DRÄXLMAIER GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  B | IPC B  H

Claim 13:
14. A method for safeguarding a multi-channel electronic power distributor, the method comprising:
controlling of an electronic switch for each channel of the multi-channel electronic power distributor to assume a certain state by a driver circuit of a corresponding channel of the multi-channel electronic power distributor;
receiving from a microcontroller, via a microcontroller interface, a command for setting a state of the electronic switch of each channel of the multi-channel electronic power distributor;
setting of the state of the electronic switch of each channel of the multi-channel electronic power distributor by the driver circuit of the corresponding channel, according to the command of the microcontroller;
detecting a malfunction in at least one of the microcontroller and the multi-channel electronic power distributor by a safety circuit;
setting of the state of the electronic switch of each channel of the multi-channel electronic power distributor by the driver circuit of the corresponding channel, according to a channel-specific preconfigured safety state, when the malfunction is detected in the at least one of the microcontroller and the multi-channel electronic power distributor;
determining a transient undervoltage at a voltage supply terminal of each channel based on a detection of a terminal voltage at the voltage supply terminal; and
switching off the electronic switch of the corresponding channel when the terminal voltage falls below a first switch-off threshold value.