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Electronic oscillation circuit

An electronic oscillation and circuit technology, applied in power oscillators, electrical components, output stability, etc., can solve problems such as limited dynamic response and poor accuracy

Active Publication Date: 2014-06-25
ANHARMONIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the measuring device is bonded to the crystal, it introduces a new temperature effect in the crystal, and if not, there will be a temperature difference between the two elements, which will make the dynamic response limited
In either case, the accuracy gets worse

Method used

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Examples

Experimental program
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Embodiment Construction

[0028] figure 1 A model of a resonator according to the art is shown. The model includes parts for a single fundamental, a single third overtone, a single fifth overtone, and there are parallel capacitors. This capacitor can be made to be part of the oscillation (parallel resonance) or not (series resonance). The overtones are resonant overtones, which makes this model unsuitable for the present invention. In fact, the capacitance value in series is Rs1≈Cs / 3, the capacitance in series is Rs3≈Cs / 9, and so on.

[0029] figure 2 A block diagram of a single-mode oscillator circuit without temperature compensation according to a patent application of the same applicant is shown. In the figure, an example of a down conversion oscillator is shown. The basis is that the oscillator shows a frequency dependent phase shift such that the feedback system searches to "find" the correct phase alignment of the resonance. A mixer requires a steady state solution, ie its input signal is ...

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Abstract

An electronic oscillator circuit has a first oscillator, for supplying a first oscillation signal, a second oscillator, for supplying a second oscillation signal, a first controller for delivering the first control signal as a function of a phase difference between a first controller input and a second controller input of the first controller; a second controller for delivering the second control signal as a function of a phase difference between a first controller input of the second controller and a second controller input of the second controller; a resonator; at least a second resonance frequency, with a first phase shift dependent on the difference between the frequency of a second exciting signal and the second resonance frequency and processing means, for receiving the first oscillator signal and the second oscillator signal, determining their mutual proportion, looking up a frequency compensation factor in a prestored table and outputting a compensated oscillation signal.

Description

technical field [0001] The present invention relates to an electronic oscillator circuit and to a method for operating such a circuit. More specifically, the present invention relates to an electronic oscillator circuit with reduced temperature sensitivity. Background technique [0002] Electronic oscillator circuits generally include elements that cause oscillation or that can be caused to resonate and subsequently cause oscillation. These oscillations can be used as frequency or time references in electronic circuits. The higher the accuracy required, the higher the precision requirements set for the oscillator circuit. [0003] Since the accuracy of oscillator circuits is highly dependent on the accuracy of the oscillator or resonator elements, frequency and time references according to the art are established on very implicitly defined material properties (such as for cesium and rubidium oscillators), which Obtains its frequency accuracy from the atomic level. Howeve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/02
CPCH03L7/02H03B5/36H03B27/00H03L1/026
Inventor A·J·M·蒙塔涅
Owner ANHARMONIC
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