Patent · US Expired

Electrical power supply having a variable output

US4814631A · kind A · utility

22Cited by
14References
17Claims
0Family size

Inventor

Key dates

Filing dateAug 6, 1981
Grant dateMar 21, 1989
Priority date
Expiry dateAug 6, 2001

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/64
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

An electrical power supply having a variable output, the power supply comprising one pair of sources of e.m.f., these sources being interconnected in parallel, each portion of the parallel circuit comprising the source being connected in series with a diode, a switch interconnecting junction between each source and the diode and a controller sensitive to the requirements of the load connected to the power supply and being adapted to operate switch such that on the switch being open the sources are connected in parallel and on the switch being closed the sources are connected in series.

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