Patent · US Expired

Power supply

US4109306A · kind A · utility

12Cited by
1References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 6, 1977
Grant dateAug 22, 1978
Priority date
Expiry dateOct 6, 1997

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02M7/064
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A power supply for providing two different DC voltages from a transformer having a center tapped secondary winding is disclosed. An arrangement of diodes and capacitators forming a voltage doubler is connected to the secondary winding to provide a low DC voltage from the center tap approximately equal to one half of the RMS voltage across the secondary winding, and a higher DC voltage greater than twice the RMS value of the AC voltage across the secondary winding of the transformer.

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