Patent · US Expired

Rectangular-to-sine wave converter

US5408135A · kind A · utility

3Cited by
5References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 25, 1994
Grant dateApr 18, 1995
Priority date
Expiry dateJan 25, 2014

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03B28/00
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A rectangular-to-sine wave converter circuit (10) is provided that comprises a flip-flop (12) that provides for a square wave and an inverse square wave circuit with fifty percent duty cycles. Each of the square wave signals is passed through a multi-stage low pass filter. The stages of the low pass filters are separated by buffers (26) and (32). The common mode voltage of the output signals at output nodes (40) and (44) are adjusted with respect to an arbitrary bias voltage V.sub.bias by using bias resistors (42) and (68).

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