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Title: Precision digital pulse phase generator

A timing generator comprises a crystal oscillator connected to provide an output reference pulse. A resistor-capacitor combination is connected to provide a variable-delay output pulse from an input connected to the crystal oscillator. A phase monitor is connected to provide duty-cycle representations of the reference and variable-delay output pulse phase. An operational amplifier drives a control voltage to the resistor-capacitor combination according to currents integrated from the phase monitor and injected into summing junctions. A digital-to-analog converter injects a control current into the summing junctions according to an input digital control code. A servo equilibrium results that provides a phase delay of the variable-delay output pulse to the output reference pulse that linearly depends on the input digital control code. 2 figs.
Inventors:
Issue Date:
OSTI Identifier:
379939
Assignee:
Univ. of California, Oakland, CA (United States) PTO; SCA: 426000; PA: EDB-96:151746; SN: 96001674300
Patent Number(s):
US 5,563,605/A/
Application Number:
PAN: 8-510,524
Contract Number:
W-7405-ENG-48
Resource Relation:
Other Information: PBD: 8 Oct 1996
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; PULSE GENERATORS; DESIGN; TIME DELAY; ELECTRIC POTENTIAL; ELECTRIC CURRENTS