Patent · US Expired

Modem with improved transformer assembly

US4939623A · kind A · utility

42Cited by
9References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 25, 1989
Grant dateJul 3, 1990
Priority date
Expiry dateApr 25, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH05K1/182
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

An improved transformer assembly includes a core windings about the core, and a mechanism attached to opposing ends of the core for slideably mounting the assembly to interior edges of a printed circuit board (pcb) which define a recess in the pcb. A further mechanism permits making direct electrical connection between conductors on the printed circuit board and the transformer windings. No additional fasteners or additional soldering is required. This transformer assembly is especially suited for utilization in a modem in order to reduce the thickness of its housing.

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