CN202794940U - Multi-channel digital resolver converter - Google Patents
Multi-channel digital resolver converter Download PDFInfo
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- CN202794940U CN202794940U CN 201220699677 CN201220699677U CN202794940U CN 202794940 U CN202794940 U CN 202794940U CN 201220699677 CN201220699677 CN 201220699677 CN 201220699677 U CN201220699677 U CN 201220699677U CN 202794940 U CN202794940 U CN 202794940U
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Abstract
The utility model relates to a multi-channel digital resolver converter which comprises a controller, a sinusoidal signal channel, a cosine signal channel and a phase tuning unit, wherein the sinusoidal signal channel comprises a digital storage, a D/A (Digital-to-Analog) convertor, an analog storage array, an analog multiplier array and a power amplifier which are sequentially connected, the output end of the power amplifier is the output end of the sinusoidal signal channel; the controller receives an input control signal through an RS232 (Recommend Standard 232) serial port, two output ends of the controller are respectively connected with the digital storage in the sinusoidal signal channel and the digital storage in the cosine signal channel; and the phase tuning unit is connected with an external reference signal and connected with the analog multiplier array. The multi-channel digital resolver converter overcomes the technical problem that the existing digital resolver conversion module cannot realize multi-channel and variable-reference frequency output.
Description
Technical field
The present invention relates to a kind of multi-channel digital and revolve the change conversion equipment, belong to signal switch technology field.
Background technology
Employing revolves that the varying signal device is realized the sensitivity of angle, position signalling, transmitted, is presented at Aero-Space, robot and industrial circle are used very extensive.Such as the inertial navigation system of a large amount of equipments on the aircraft, the attitude of flight vehicle signal great majority of its output are all for revolving varying signal.Revolve in the process of varying signal in use, not only need to convert digital signal to revolving varying signal, also exist simultaneously to convert digital signal to revolve varying signal problem, as revolving varying signal just usually needing when digital control carrying out digital controlled signal converted to; In addition, also exist in the occasions of a lot of tests and convert digital signal to revolve varying signal needs.
At present, numeral is revolved and is become conversion equipment to generate the ultimate principle of revolving varying signal be to utilize two D/A converters to connect into multiplier mostly, sine, cosine digital quantity and the reference signal of the angle of needs conversions are multiplied each other, at last by exporting after quadrant selector switch and the power amplification.The varying signal that revolves that obtains so all is single pass, because the performance limitations of peripheral circuit, the reference frequency of revolving varying signal that every kind of converter is finished output all is appointment, otherwise error is larger.When reality is used, must the corresponding numeral of output channel revolve the change modular converter like this; In the system that needs hyperchannel to export simultaneously, use this numeral to revolve the change modular converter and have cost and the larger problem of volume.
The utility model content
Technical problem to be solved in the utility model provides a kind of multi-channel digital and revolves the change conversion equipment, overcomes existing numeral and revolves the technical matters that the change modular converter can not be realized hyperchannel, become reference frequency output.
The technical scheme that the utility model adopts is:
Multi-channel digital revolves the change conversion equipment, comprises controller, sinusoidal signal passage, cosine signal passage and phase tuner;
Described sinusoidal passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of sinusoidal passage;
Described cosine passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of cosine passage;
Described controller receives input control signal by the RS232 serial ports, and two output terminals of this controller link to each other with number storage, the number storage in the cosine passage in the sinusoidal passage respectively; The refresh signal control end of described controller links to each other with analog memory array, the analog memory array in the cosine passage in the sinusoidal passage respectively;
Described phase tuner connects external reference signal, and links to each other with analog multiplier array, the analog multiplier array in the cosine passage in the sinusoidal passage respectively.
Further, described controller adopts single chip computer AT 89C52.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
The beneficial effects of the utility model are:
Overcome high cost in the hyperchannel transformation applications, the excessive deficiency of volume, realized that the low-cost small size numeral of hyperchannel, the output of variable reference frequency/revolve becomes conversion.
Can realize the generation that hyperchannel revolves varying signal with lower cost, less volume, the multichannel of satisfying the demand is revolved the occasion that varying signal occurs.
External control is simple, and is easy to adjust.Peripheral control unit mainly sends the angle value that each passage need to send by serial ports can finish conversion automatically.
Can combination in any two-way sendaisle, consist of double speed and revolve varying signal and send, control is simple.
Can satisfy the variable requirement of reference signal frequency, circuit bandwidth is higher, when the different frequency reference signal is changed, directly accesses external reference signal, simply adjusts the varying signal that revolves that the planet phasing link can satisfy different reference frequencies and sends.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing principle of the present utility model and feature are described.
As shown in Figure 1, multi-channel digital revolves the change conversion equipment, comprises controller, sinusoidal signal passage, cosine signal passage and phase tuner; Sinusoidal passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of sinusoidal passage; The cosine passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of cosine passage; Controller receives input control signal by the RS232 serial ports, and two output terminals of this controller link to each other with number storage, the number storage in the cosine passage in the sinusoidal passage respectively; The refresh signal control end of described controller links to each other with analog memory array, the analog memory array in the cosine passage in the sinusoidal passage respectively; Phase tuner connects external reference signal, and links to each other with analog multiplier array, the analog multiplier array in the cosine passage in the sinusoidal passage respectively.
Controller adopts single chip computer AT 89C52.Its effect is to receive the outside angle signal that needs conversion of sending here, convert the parallel binary angle signal to, number storage is carried out addressing table look-up sine and the cosine digital quantity of angulation, the control simulation storer refreshes simultaneously, according to the steering order that the outside is sent here, controller can be controlled revolving of any two sendaisles and become the double speed that change-over circuit consists of different speed ratios and revolve varying signal.
Number storage in the sinusoidal passage and the number storage in the cosine passage be sinusoidal digital quantity and the cosine digital quantity of stored angles respectively.
The two-way D/A converter is just the same, and just one tunnel reception cosine digital quantity is finished conversion, and one the tunnel receives the sine value digital quantity finishes conversion.
Analog memory in the sinusoidal passage and two analog memorys of an analog memory in the cosine passage consist of one group to be stored respectively and revolves sinusoidal passage DC voltage and the cosine passage DC voltage that becomes simulating signal, organizes analog memory more and finishes the storages that many groups are revolved the change simulating signal.
The analog multiplier array is made of a plurality of analog multipliers, adopts analog multiplier of the prior art to realize.The analogue multiplication modulator array is modulated to the d. c. voltage signal of analog memory output on the reference signal.Multiply each other as output respectively and through the reference signal of planet phasing by two analog multipliers, be and form one the tunnel and revolve varying signal output.
There is the phase shift problem in phase tuner of the present invention for solving whole circuit, guarantees that varying signal is revolved in output and reference signal is synchronous, and phase tuner realizes by the phase-shift circuit that amplifier consists of.
Claims (2)
1. a multi-channel digital revolves the change conversion equipment, it is characterized in that: comprise controller, sinusoidal signal passage, cosine signal passage and phase tuner;
Described sinusoidal passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of sinusoidal passage;
Described cosine passage comprises number storage, D/A converter, analog memory array, analog multiplier array and the power amplifier that links to each other successively, and the output terminal of this power amplifier is the output terminal of cosine passage;
Described controller receives input control signal by the RS232 serial ports, and two output terminals of this controller link to each other with number storage, the number storage in the cosine passage in the sinusoidal passage respectively; The refresh signal control end of described controller links to each other with analog memory array, the analog memory array in the cosine passage in the sinusoidal passage respectively;
Described phase tuner connects external reference signal, and this phase tuner also links to each other with analog multiplier array, the analog multiplier array in the cosine passage in the sinusoidal passage respectively.
2. multi-channel digital according to claim 1 revolves the change conversion equipment, it is characterized in that: described controller adopts single chip computer AT 89C52.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699677 CN202794940U (en) | 2012-12-17 | 2012-12-17 | Multi-channel digital resolver converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220699677 CN202794940U (en) | 2012-12-17 | 2012-12-17 | Multi-channel digital resolver converter |
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| Publication Number | Publication Date |
|---|---|
| CN202794940U true CN202794940U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220699677 Expired - Fee Related CN202794940U (en) | 2012-12-17 | 2012-12-17 | Multi-channel digital resolver converter |
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| CN (1) | CN202794940U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589690A (en) * | 2017-08-11 | 2018-01-16 | 东北电力大学 | A kind of harmonic signal phase regulation method and device for piezoelectric micro system |
| CN111752185A (en) * | 2020-05-20 | 2020-10-09 | 哈船光电(武汉)有限公司 | Two-path coarse-fine combined shaft angle signal generating system |
-
2012
- 2012-12-17 CN CN 201220699677 patent/CN202794940U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107589690A (en) * | 2017-08-11 | 2018-01-16 | 东北电力大学 | A kind of harmonic signal phase regulation method and device for piezoelectric micro system |
| CN111752185A (en) * | 2020-05-20 | 2020-10-09 | 哈船光电(武汉)有限公司 | Two-path coarse-fine combined shaft angle signal generating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20131217 |