Patent · US Active

Smart electronic switch

US11539357B2 · kind B2 · utility

1Cited by
11References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 7, 2020
Grant dateDec 27, 2022
Priority date
Expiry dateJul 6, 2041

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K2217/0027
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

An integrated circuit may include a power transistor coupled between a supply pin and an output pin; a current sensing circuit configured to sense a load current passing through the power transistor and to provide a respective current sense signal; a first configuration pin; a current output circuit configured to provide a diagnosis current at a current output pin; a diagnosis pin for receiving a diagnosis request signal; and a control circuit configured to: select a characteristic curve representing a current versus time characteristic dependent on a external circuit connected to the first configuration pin; generate a drive signal for the power transistor dependent on the selected characteristic curve and the current sense signal; and control—dependent on a pulse pattern of the diagnosis request signal—the current output circuit to set the value of the diagnosis current such that it represents the load current or the selected characteristic curve.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.