CN101534119B - Ageing compensating and correcting method of oscillator circuit device, control module and device thereof - Google Patents
Ageing compensating and correcting method of oscillator circuit device, control module and device thereof Download PDFInfo
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- CN101534119B CN101534119B CN2008100827625A CN200810082762A CN101534119B CN 101534119 B CN101534119 B CN 101534119B CN 2008100827625 A CN2008100827625 A CN 2008100827625A CN 200810082762 A CN200810082762 A CN 200810082762A CN 101534119 B CN101534119 B CN 101534119B
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- 230000032683 aging Effects 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 14
- 206010021703 Indifference Diseases 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims 1
- 239000013078 crystal Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009514 concussion Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses an ageing compensating and correcting method of an oscillator circuit device which is controlled by a control voltage of an application end to output a clock pulse signal with certain frequency; and the method comprises the steps as follows: (a) a first control voltage of the application end is detected; (b) a preset time is counted so as to detect a second control voltage of the application end after reaching the preset time; (c) when the difference between the first control voltage and the second control voltage is judged, the difference value of the control voltage is compensated so as to maintain the original output voltage of the application end, and compensation is not needed when having no difference; and (d) steps (b) to (c) are repeatedly executed. The ageing compensating and correcting method of the oscillator circuit device can automatically detect and compensate the control voltage, thus preventing the ageing phenomenon.
Description
Technical field
The present invention relates to a kind of time pulse signal compensation correction method, control die set and device thereof, particularly relate to a kind of compensation of ageing bearing calibration, control die set and device thereof of oscillator circuit device.
Background technology
In the technical field of crystal oscillator (Crystal Oscillator); Accuracy (Accuracy) is meant that single crystal oscillator is originally in the process several years; Or in certain temperature range; The consistency of clock pulse frequency is how, the unit that the most often uses as PPM (Parts Per Million, PPM).In system, use quartz crystal the most accurately, or utilize VCXO (VoltageControlled Crystal Oscillator; Abbreviation VCXO) lock-in techniques can both promote precision.Yet along with service time is permanent, the aging phenomenon of VCXO is after after a while, and crystal change in time itself can have small variation, and the accuracy of the concussion frequency that causes exporting reduces.
Summary of the invention
Therefore, the purpose of this invention is to provide a kind of Auto-Sensing control voltage and also compensate compensation of ageing bearing calibration with the oscillator circuit device that prevents aging phenomenon.
So in the compensation of ageing bearing calibration of oscillator circuit device of the present invention, oscillator circuit device is accepted the time pulse signal of the control voltage control of application end with the output preset frequency.
Said method comprises following step: the first control voltage that (a) detects application end; (b) the numeration scheduled time, when arriving the scheduled time, detect the second control voltage of application end; (c) judge that the difference value of compensation control voltage was so that application end is kept former output voltage, if indifference then need not compensate when the first control voltage and the second control voltage were variant; And (d) repeated execution of steps (b) to step (c).
Another object of the present invention provides a kind of Auto-Sensing control voltage and compensates to prevent the oscillator circuit device of aging phenomenon.
Oscillator circuit device of the present invention is to accept the control voltage control of application end to export the time pulse signal of a preset frequency, and it comprises control die set and oscillator adjustment module.
Control die set is judged when the control voltage of scheduled time at interval is variant, the difference value of compensation control voltage, and each scheduled period at interval promptly repeat abovementioned steps and make application end keep former output voltage.
Another purpose of the present invention provides the control die set of a kind of Auto-Sensing compensation control voltage with the oscillator circuit device that prevents aging phenomenon.
The control die set of oscillator circuit device of the present invention is a control voltage control of accepting application end exporting the time pulse signal of a preset frequency, and control die set comprises processing unit, timer, receiving element and mnemon.
Processing unit is coordinated each element running in order to control; Timer is in order to numeration time and notifier processes unit; Receiving element receives processing unit control to receive the first control voltage of application end, and when arriving a scheduled time, receives the second control voltage of application end, and the first control voltage and the second control voltage are offered processing unit; Mnemon is in order to note down the first control voltage and the second control voltage.
Processing unit is judged when the first control voltage and the second control voltage are variant, the difference value of compensation control voltage, and each interval scheduled period promptly repeat abovementioned steps and make application end keep former output voltage.
Because compensation of ageing bearing calibration, control die set and the device thereof of oscillator circuit device of the present invention, be timing automatic detecting control voltage and according to whether variant compensating, therefore can prevent aging phenomenon and keep accuracy.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
Fig. 1 is a system block diagrams, and the preferred embodiment of invention oscillator circuit device of the present invention is described;
Fig. 2 is a flow chart, and the preferred embodiment of the compensation of ageing bearing calibration of oscillator circuit device of the present invention is described;
Fig. 3 is a voltage oscillogram, and the control voltage of different time is described;
Fig. 4 is a circuit block diagram, and the preferred embodiment of the control die set of invention oscillator circuit device of the present invention is described.
Embodiment
About aforementioned and other technology contents, characteristics and effect of the present invention, in DETAILED DESCRIPTION OF THE PREFERRED, can clearly appear below in conjunction with accompanying drawing.
With reference to figure 1, in the preferred embodiment of oscillator circuit device 100 of the present invention, oscillator circuit device 100 is accepted the control voltage V of application end 300
CtrlControl is to export the time pulse signal V of a preset frequency
Out Oscillator circuit device 100 comprises control die set 1 and oscillator adjustment module 2; And in this preferred embodiment; Oscillator circuit device 100 is voltage controlled oscillator (VCXO), and utilizes same know-why, also can be applicable to temperature control oscillator (TCXO) or thermostatic control oscillator (OCXO) circuit arrangement.
With reference to figure 2, and combine Fig. 1 and Fig. 3, the compensation correction method of oscillator circuit device 100 comprises the steps:
Control die set 1 is at very first time T
1The first control voltage V of detection and storage application end 300
1(step 101); Numeration scheduled time Δ T (step 102), judging whether to arrive should scheduled time Δ T (step 103), if arrive, in second time T
2The second control voltage V of detection and storage application end 300
2(step 104) then, judged the first control voltage V
1Reach the second control voltage V
2Whether variant (step 105) if having, then calculates bucking voltage Δ V with compensation control voltage V
CtrlDifference value (step 106), and the first control voltage V that will originally store
1Be updated to compensated voltage value V
Ctrl' (step 107), then, oscillator adjustment module 2 is according to the control voltage V after the compensation
Ctrl' the time pulse signal V of control output
Out(step 108), and repeat abovementioned steps 102 to step 108.
According to aforesaid compensation correction method, because promptly automatically performing, control die set 1 each scheduled time Δ T at interval judges and compensation, make the fixing control voltage V of application end 300 outputs
Ctrl, just application end 300 need not change its output voltage, because oscillator circuit device 100 can compensate voluntarily, therefore can prevent aging phenomenon.
With reference to figure 4, control die set 1 comprises processing unit 11, timer 12, receiving element 13 and mnemon 14; The adjustment circuit 22 that oscillator adjustment module 2 has the resonance frequency of crystal element 21 and controlled adjustment crystal element 21.
Processing unit 11 is coordinated each element running in order to control; Timer 12 is in order to numeration time and notifier processes unit 13; Receiving element 13 is analog/digital converter in this preferred embodiment, in order to receive processing unit 11 controls, at very first time T
1Receive the first control voltage V of application end 300
1, and in second time T
2Receive the second control voltage V of application end 300
2, and with the first control voltage V
1Reach the second control voltage V
2Convert digital date into and offer processing unit 11; 14 of mnemons are in order to note down the first control voltage V
1Reach the second control voltage V
2Digital date.
When processing unit 11 is judged the first control voltage V
1With the second control voltage V
2When variant, just calculate the control voltage V after compensating
Ctrl', and will control voltage V
Ctrl' be recorded in the mnemon 14, and export to the resonance frequency that adjustment circuit 22 supplies its adjustment crystal element 21, and each scheduled time Δ T at interval promptly automatically performs aforementioned judgement and compensation process.
In sum, the compensation of ageing bearing calibration of oscillator circuit device 100 of the present invention, control die set 1 and device thereof, be timing automatic detecting control voltage and according to whether variant compensating, therefore can prevent aging phenomenon and keep accuracy.
Claims (6)
1. the time pulse signal of the control voltage control of application end with the output preset frequency accepted in the compensation of ageing bearing calibration of an oscillator circuit device, said oscillator circuit device, it is characterized in that said method comprises following step:
(a) detect and store first of said application end and control voltage;
(b) the numeration scheduled time, when arriving said scheduled time, detect the second control voltage of this application end;
(c) judge when said first control voltage and the said second control voltage are variant; Compensate the difference value of said control voltage so that said application end is kept former output voltage; Indifference the said first control voltage that originally stored is updated to the compensated voltage value, if then need not compensate; And
(d) repeated execution of steps (b) is to step (c).
2. the control die set of an oscillator circuit device is accepted the control voltage of application end, it is characterized in that said control die set comprises:
Processing unit is coordinated each element running in order to control;
Timer is in order to the numeration time and notify said processing unit;
Receiving element receives said processing unit control to receive the first control voltage of said application end, and when arriving a scheduled time, receives the second control voltage of said application end, and said first control voltage and the said second control voltage are offered processing unit; And
Mnemon is in order to note down said first control voltage and the said second control voltage;
Said processing unit judges that the said first control voltage and said second controls voltage when variant; Compensate the difference value of said control voltage; And the first control voltage that will originally store is updated to the compensated voltage value, and each said scheduled time at interval promptly repeats abovementioned steps and makes said application end keep former output voltage.
3. an oscillator circuit device is accepted the time pulse signal of the control voltage control of application end with the output preset frequency, it is characterized in that described oscillator circuit device comprises:
Control die set; In order to detect and to store the first control voltage of said application end; The first control voltage of judging scheduled time at interval, compensates the said first control voltage and controls the difference value of voltage with second when variant with the second control voltage, and will originally store said first control voltage and be updated to the compensated voltage value; And each said scheduled time at interval promptly automatically performs abovementioned steps, makes said application end keep former output voltage whereby; And
Oscillator adjustment module receives said control die set to export the time pulse signal of said preset frequency according to the control voltage control after compensating.
4. oscillator circuit device according to claim 3 is characterized in that, said control die set comprises:
Processing unit is coordinated each element running in order to control;
Timer is in order to the numeration time and notify said processing unit;
Receiving element; Receive said processing unit control to receive the first control voltage of said application end; And when arriving the scheduled time, receive the second control voltage of said application end, and said first control voltage and the said second control voltage are offered said processing unit; And
Mnemon receives said processing unit control in order to note down said first control voltage and the said second control voltage;
Said processing unit judges that the said first control voltage and said second controls voltage when variant; Compensate the difference value of said control voltage; And the said first control voltage that will originally store is updated to the compensated voltage value, and each said scheduled time at interval promptly repeats abovementioned steps and makes said application end keep former output voltage.
5. oscillator circuit device according to claim 4 is characterized in that,
Said receiving element is an analog/digital converter, in order to being to offer said processing unit behind the digital date with said first control voltage and the said second control voltage transitions.
6. according to claim 3,4 or 5 described oscillator circuit devices, it is characterized in that,
Said oscillator circuit device is voltage controlled oscillator, temperature control oscillator or thermostatic control oscillator circuit device.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100827625A CN101534119B (en) | 2008-03-12 | 2008-03-12 | Ageing compensating and correcting method of oscillator circuit device, control module and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008100827625A CN101534119B (en) | 2008-03-12 | 2008-03-12 | Ageing compensating and correcting method of oscillator circuit device, control module and device thereof |
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| Publication Number | Publication Date |
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| CN101534119A CN101534119A (en) | 2009-09-16 |
| CN101534119B true CN101534119B (en) | 2012-07-25 |
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| CN2008100827625A Expired - Fee Related CN101534119B (en) | 2008-03-12 | 2008-03-12 | Ageing compensating and correcting method of oscillator circuit device, control module and device thereof |
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| US9767195B2 (en) | 2011-04-21 | 2017-09-19 | Touchstream Technologies, Inc. | Virtualized hosting and displaying of content using a swappable media player |
| JP6089011B2 (en) * | 2014-08-20 | 2017-03-01 | 日本電波工業株式会社 | OSCILLATOR AND METHOD FOR MANUFACTURING OSCILLATOR |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4677394A (en) * | 1985-07-19 | 1987-06-30 | Siemens Aktiengesellschaft | Method and apparatus for calibrating an adjustable frequency generator |
| CN1197248C (en) * | 1996-10-22 | 2005-04-13 | 艾利森电话股份有限公司 | Apparatus and associated method for calibrating a device |
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- 2008-03-12 CN CN2008100827625A patent/CN101534119B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4677394A (en) * | 1985-07-19 | 1987-06-30 | Siemens Aktiengesellschaft | Method and apparatus for calibrating an adjustable frequency generator |
| CN1197248C (en) * | 1996-10-22 | 2005-04-13 | 艾利森电话股份有限公司 | Apparatus and associated method for calibrating a device |
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| CN101534119A (en) | 2009-09-16 |
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