CN101977038A - Signal waveform control method - Google Patents
Signal waveform control method Download PDFInfo
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- CN101977038A CN101977038A CN2010105433398A CN201010543339A CN101977038A CN 101977038 A CN101977038 A CN 101977038A CN 2010105433398 A CN2010105433398 A CN 2010105433398A CN 201010543339 A CN201010543339 A CN 201010543339A CN 101977038 A CN101977038 A CN 101977038A
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Abstract
The invention discloses a signal waveform control method which comprises the following steps: an upper computer outputs a setting condition selection instruction to a singlechip; the singlechip controls a waveform generator to generate a waveform according to the selected setting condition; an amplitude adjustment circuit integrates the received output signal of an A/D converter and the waveform generated by the waveform generator and carries out amplitude modulation according to a certain input output relationship; a bias generation circuit generates a bias voltage; and a superposed circuit superposes the waveform adjusted by the amplitude adjustment circuit onto the bias voltage generated by the bias generation circuit so as to form a waveform signal. The signal waveform control method can be used for controlling generation of different types of waveform signals with different frequencies, different amplitudes and different biases.
Description
Technical field
The present invention relates to ic test technique, relate in particular to a kind of control method of signal waveform.
Background technology
In integrated circuit testing, former device to be tested normally can drive the device of a plurality of peripheral components work, in the peripheral components switch work different of different operating frequencies with control under the supply voltage, realize voltage detecting control switching, and the supply voltage that test machine provides for chip is the constant DC pressure, for example, former device to be tested can drive two peripheral components (being called first peripheral components and second peripheral components) work, under the high-low level condition of a certain frequency and bias voltage, former device to be tested drives the first peripheral components work, under the high-low level condition of difference/same frequency or difference/identical bias voltage, former device to be tested drives the second peripheral components work, and the supply voltage that a lot of test machines provide is a direct voltage, therefore, when testing these former devices, also need to have the signal of waveform, and for different former devices to be tested, the type of waveform of desired signal, frequency, amplitude, biasing is different.
Summary of the invention
The object of the present invention is to provide a kind of control method of signal waveform, can control the waveform signal that produces dissimilar, different frequency, different amplitude, different biasings.
To achieve the above object, the invention provides a kind of control method of signal waveform, implemented by the signal generator that comprises host computer, single-chip microcomputer, waveform generator, A/D converter, amplitude adjusting circuit, bias generation circuit and supercircuit, may further comprise the steps: described host computer selects to be provided with conditional order to described single-chip microcomputer output; Described single-chip microcomputer is controlled described waveform generator according to the condition of selecting that is provided with and is produced waveform; The waveform that the output signal of the described A/D converter that described amplitude adjusting circuit will receive and described waveform generator produce is integrated, and carries out amplitude according to certain input/output relation and regulates; Described bias generation circuit produces bias voltage; Described supercircuit will be added to through the waveform of described amplitude adjusting circuit adjustment on the bias voltage that described bias generation circuit produces, and form the waveform signal that needs.
The control method of above-mentioned signal waveform, wherein, described each parameter that the described waveform generator of conditional definition is set, the described condition that is provided with is kept in the memory.
The control method of above-mentioned signal waveform, wherein, described single-chip microcomputer produces waveform according to the condition that the is provided with control waveform generator of selecting and specifically may further comprise the steps: described single-chip microcomputer is provided with conditional order according to the selection of described host computer output, reads out the corresponding setting condition in described memory; Described single-chip microcomputer sends to described waveform generator according to the relative set condition that reads out and produces the waveform instruction; Described waveform generator produces and the corresponding waveform of selecting of the condition that is provided with.
The control method of above-mentioned signal waveform wherein, comprises that also drive circuit increases the step of the power of described supercircuit output signal.
The control method of above-mentioned signal waveform, wherein, the described waveform generator of described Single-chip Controlling produces square wave, triangular wave, sine wave or cosine wave.
The control method of above-mentioned signal waveform, wherein, it is 1Hz～10MHz that the described waveform generator of described Single-chip Controlling produces frequency-tuning range, degree of regulation at 1KHz with interior waveform.
The control method of above-mentioned signal waveform, wherein, the degree of regulation of described amplitude adjusting circuit is 2mmV.
The control method of above-mentioned signal waveform, wherein, the waveform after described bias generation circuit and described supercircuit are realized amplitude regulated is superimposed upon-18V～+ voltage of 18V on.
The control method of signal waveform of the present invention by single-chip microcomputer according to type that the condition control waveform is set and frequency, regulate the amplitude of waveform by amplitude adjusting circuit, adjust the reference point of waveform by the stack of waveform and bias voltage, increase the power of output signal by drive circuit, thereby can produce dissimilar, different frequency, different amplitude, different biasing, powerful waveform signal.
Description of drawings
The control method of signal waveform of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 is the flow chart of the control method of signal waveform of the present invention.
Fig. 2 is a structural representation of implementing the control method special equipment of signal waveform of the present invention.
Embodiment
Below with reference to Fig. 1～Fig. 2 the control method of signal waveform of the present invention is described in further detail.
Referring to Fig. 1, the control method of signal waveform of the present invention may further comprise the steps:
Host computer selects to be provided with conditional order to single-chip microcomputer output;
Described single-chip microcomputer produces waveform according to the condition that the is provided with control waveform generator of selecting;
Amplitude adjusting circuit is integrated the waveform that the output signal and the described waveform generator of the A/D converter that receives produces, and carries out amplitude according to certain input/output relation and regulates;
Bias generation circuit produces bias voltage;
Supercircuit will be added to through the waveform of described amplitude adjusting circuit adjustment on the bias voltage that described bias generation circuit produces, and form the waveform signal that needs.
The control method of signal waveform of the present invention by single-chip microcomputer according to type that the condition control waveform is set and frequency, regulate the amplitude of waveform by amplitude adjusting circuit, the reference point of waveform is adjusted in stack by waveform and bias voltage, thereby can produce the waveform signal of dissimilar, different frequency, different amplitude, different biasings.
Now describe the control method of signal waveform of the present invention in detail with a specific embodiment:
Referring to Fig. 2, a kind of signal generator comprises host computer 100, memory 200, single-chip microcomputer 300, waveform generator 400, bias generation circuit 500, supercircuit 600, amplitude adjusting circuit 700, A/D converter 710 and drive circuit 800;
Described memory 200 is used for preserving the condition that is provided with;
The described various parameters that the described waveform generator 400 of conditional definition is set, for example type of waveform, frequency etc., more than one of the condition that is provided with of preserving in the described memory 200, the different described waveform generators 400 of conditional decision that are provided with produce waveform dissimilar, different frequency;
Described host computer 100 be used for the input condition is set, change is provided with condition and selection is provided with condition;
Described single-chip microcomputer 300 is used to control described waveform generator 400 and described bias generation circuit 500;
Described shape generator 400 is used to produce waveform;
Described amplitude adjusting circuit 700 is used to regulate the amplitude of the waveform that described waveform generator 400 produces;
Described bias generation circuit 500 is used to produce bias voltage;
Described supercircuit 600 is used for the waveform that stack is regulated through described bias generation circuit 500 on the bias voltage that described bias generation circuit 500 produces;
Described drive circuit 800 is used to increase the power of the output signal of described supercircuit 600, to improve the power of the signal that signal generator produces;
The output signal of described drive circuit 800 is the signal that signal generator produces, and this signal is connected with subsequent device, in order to drive subsequent device (as former device to be tested) work.
The control method of the signal waveform of present embodiment adopts above-mentioned signal generator to implement, and may further comprise the steps:
Step 1, host computer 100 selects to be provided with conditional order to single-chip microcomputer 300 outputs;
The described condition that is provided with is kept in the memory 200, described conditional definition the has been set various parameters of waveform generator 400, for example type of waveform, frequency etc.;
More than one of the condition that is provided with of preserving in the described memory 200, the different described waveform generators 400 of conditional decision that are provided with produce waveform dissimilar, different frequency;
The condition that is provided with of preserving in the described memory 200 can be by described host computer 100 changes;
Step 2, described single-chip microcomputer 300 is controlled described waveform generator 400 according to the condition of selecting that is provided with and is produced waveform;
Step 2.1, described single-chip microcomputer 300 is provided with conditional order according to the selection of described host computer 100 outputs, reads out the corresponding setting condition in described memory 200;
Step 2.2, described single-chip microcomputer 300 send to described waveform generator 400 according to the relative set condition that reads out and produce the waveform instruction;
Step 2.3, described waveform generator 400 produces and the corresponding waveform of selecting of the condition that is provided with;
Utilize the described waveform generator 400 of described single-chip microcomputer 300 may command to produce square wave, triangular wave, sine wave, cosine wave etc., frequency-tuning range is 1Hz～10MHz, and degree of regulation is in 1KHz;
The waveform that described waveform generator 400 produces is reference point with 0V, and amplitude is ± 1V;
The waveform that the output signal of the described A/D converter 710 that step 3, amplitude adjusting circuit 700 will receive and described waveform generator 400 produce is integrated, and carries out amplitude according to certain input/output relation and regulates;
Degree of regulation is 2mmV;
Step 4, bias generation circuit 500 produces bias voltage;
Described bias generation circuit 500 produces bias voltages by 300 controls of described single-chip microcomputer, and the scope of the bias voltage of generation is-18V～+ 18V;
Step 5, supercircuit 600 overlaid waveforms on bias voltage forms the signal with waveform;
The bias voltage that the waveform and the described bias generation circuit 500 through the amplitude adjustment of described amplitude adjusting circuit 700 outputs of described supercircuit 600 receptions exported, superpose this waveform and this bias voltage form the signal with waveform;
Described signal with waveform is not reference point with 0V;
Step 6, drive circuit 800 increases the power of described supercircuit 600 output signals;
Described drive circuit 800 receives the signal with waveform of described supercircuit 600 outputs, increases the power of this signal, makes this signal with waveform can drive subsequent device work.
That the control method of the signal waveform of present embodiment can produce is dissimilar, different frequency, different amplitude, different biasing, powerful waveform signal.
Claims (8)
1. the control method of a signal waveform is implemented by the signal generator that comprises host computer, single-chip microcomputer, waveform generator, A/D converter, amplitude adjusting circuit, bias generation circuit and supercircuit, it is characterized in that, may further comprise the steps:
Described host computer selects to be provided with conditional order to described single-chip microcomputer output;
Described single-chip microcomputer is controlled described waveform generator according to the condition of selecting that is provided with and is produced waveform;
The waveform that the output signal of the described A/D converter that described amplitude adjusting circuit will receive and described waveform generator produce is integrated, and carries out amplitude according to certain input/output relation and regulates;
Described bias generation circuit produces bias voltage;
Described supercircuit will be added to through the waveform of described amplitude adjusting circuit adjustment on the bias voltage that described bias generation circuit produces, and form the waveform signal that needs.
2. the control method of signal waveform as claimed in claim 1 is characterized in that, described each parameter that the described waveform generator of conditional definition is set, and the described condition that is provided with is kept in the memory.
3. the control method of signal waveform as claimed in claim 2 is characterized in that, described single-chip microcomputer produces waveform according to the condition that the is provided with control waveform generator of selecting and specifically may further comprise the steps:
Described single-chip microcomputer is provided with conditional order according to the selection of described host computer output, reads out the corresponding setting condition in described memory;
Described single-chip microcomputer sends to described waveform generator according to the relative set condition that reads out and produces the waveform instruction;
Described waveform generator produces and the corresponding waveform of selecting of the condition that is provided with.
4. the control method of signal waveform as claimed in claim 1 is characterized in that, comprises that also drive circuit increases the step of the power of described supercircuit output signal.
5. as the control method of claim 1,3 or 4 described signal waveforms, it is characterized in that the described waveform generator of described Single-chip Controlling produces square wave, triangular wave, sine wave or cosine wave.
6. as the control method of claim 1,3 or 4 described signal waveforms, it is characterized in that it is 1Hz～10MHz that the described waveform generator of described Single-chip Controlling produces frequency-tuning range, degree of regulation at 1KHz with interior waveform.
7. as the control method of claim 1,3 or 4 described signal waveforms, it is characterized in that the degree of regulation of described amplitude adjusting circuit is 2mmV.
8. as the control method of claim 1,3 or 4 described signal waveforms, it is characterized in that, the waveform after described bias generation circuit and described supercircuit are realized amplitude regulated is superimposed upon-18V～+ voltage of 18V on.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105433398A CN101977038A (en) | 2010-11-12 | 2010-11-12 | Signal waveform control method |
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| CN2010105433398A CN101977038A (en) | 2010-11-12 | 2010-11-12 | Signal waveform control method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901230A (en) * | 2012-12-27 | 2014-07-02 | 四川红华实业有限公司 | Rotation-speed signal simulator for host rack |
| JP2020017230A (en) * | 2018-07-27 | 2020-01-30 | 株式会社東芝 | Control apparatus, control method and computer program |
| CN110787042A (en) * | 2019-09-30 | 2020-02-14 | 深圳市倍轻松科技股份有限公司 | Control method and device of massage equipment, computer equipment and storage medium |
| CN110853612A (en) * | 2019-11-20 | 2020-02-28 | 中电科仪器仪表有限公司 | System and method for generating audio high-transient rise time square wave signal |
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| CN2222917Y (en) * | 1994-06-22 | 1996-03-20 | 李梅 | Small supersonic signal generator |
| CN2288551Y (en) * | 1997-03-04 | 1998-08-19 | 深圳市华为技术有限公司 | Timing signal generator |
| CN101227182A (en) * | 2008-01-29 | 2008-07-23 | 电子科技大学 | Narrow pulse signal generator based on clock drive |
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Patent Citations (3)
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| CN2222917Y (en) * | 1994-06-22 | 1996-03-20 | 李梅 | Small supersonic signal generator |
| CN2288551Y (en) * | 1997-03-04 | 1998-08-19 | 深圳市华为技术有限公司 | Timing signal generator |
| CN101227182A (en) * | 2008-01-29 | 2008-07-23 | 电子科技大学 | Narrow pulse signal generator based on clock drive |
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| 庄海军: "数字函数信号发生器的设计与实现", 《中国优秀硕士学位论文全文数据库（电子期刊）》, no. 4, 15 April 2009 (2009-04-15), pages 4 - 14 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103901230A (en) * | 2012-12-27 | 2014-07-02 | 四川红华实业有限公司 | Rotation-speed signal simulator for host rack |
| JP2020017230A (en) * | 2018-07-27 | 2020-01-30 | 株式会社東芝 | Control apparatus, control method and computer program |
| CN112400142A (en) * | 2018-07-27 | 2021-02-23 | 株式会社东芝 | Control device, control method, and computer program |
| JP7132016B2 (en) | 2018-07-27 | 2022-09-06 | 株式会社東芝 | Control device, control method and computer program |
| CN110787042A (en) * | 2019-09-30 | 2020-02-14 | 深圳市倍轻松科技股份有限公司 | Control method and device of massage equipment, computer equipment and storage medium |
| CN110787042B (en) * | 2019-09-30 | 2022-03-11 | 深圳市倍轻松科技股份有限公司 | Control method and device of massage equipment, computer equipment and storage medium |
| CN110853612A (en) * | 2019-11-20 | 2020-02-28 | 中电科仪器仪表有限公司 | System and method for generating audio high-transient rise time square wave signal |
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Application publication date: 20110216 |