Precision digital pulse phase generator
Patent
·
OSTI ID:870636
- Livermore, CA
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.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- Regents of University of California (Oakland, CA)
- Patent Number(s):
- US 5563605
- OSTI ID:
- 870636
- Country of Publication:
- United States
- Language:
- English
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amplifier
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control
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converter
crystal
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servo
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timing
variable-delay
voltage
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amplifier
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code
combination
comprises
connected
control
control voltage
converter
crystal
crystal oscillator
current
currents
delay
depends
digital
digital control
digital-to-analog
digital-to-analog converter
drives
duty-cycle
equilibrium
generator
generator comprises
injected
injects
input
integrated
junctions
linearly
monitor
operational
operational amplifier
oscillator
output
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phase
phase delay
phase monitor
precision
provide
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pulse
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representations
resistor-capacitor
results
servo
summing
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