Patent · US Expired

Circuit and method for switching an electrical load on after a delay

US7183816B2 · kind B2 · utility

3Cited by
16References
22Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 24, 2004
Grant dateFeb 27, 2007
Priority date
Expiry dateJun 1, 2025

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K19/0016
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A circuit (S1) for switching on an electrical load which can be connected downstream from the circuit comprises a first electronic switching means (T1) in a first path, and a second electronic switching means (T2) in a second path, which is in parallel with it. The circuit also has a means (INV, OR, T5) for producing the electrical control variable (Ugate2) for the second switching means (T2), which determines the control variable (Ugate2) as a function of an electrical variable (U0,d) which occurs on the output side of the first switching means (T1) when switching on a load which can be connected downstream.

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