CN202998029U - Special signal edge detection device - Google Patents
Special signal edge detection device Download PDFInfo
- Publication number
- CN202998029U CN202998029U CN 201220678039 CN201220678039U CN202998029U CN 202998029 U CN202998029 U CN 202998029U CN 201220678039 CN201220678039 CN 201220678039 CN 201220678039 U CN201220678039 U CN 201220678039U CN 202998029 U CN202998029 U CN 202998029U
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- Prior art keywords
- resistor
- voltage
- capacitor
- stabiliser tube
- slide
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- Expired - Fee Related
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- 238000003708 edge detection Methods 0.000 title abstract description 5
- 239000003381 stabilizer Substances 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model discloses a special signal edge detection device. The special signal edge detection device comprises a first resistor, a second resistor, a voltage comparator, a third resistor, a first voltage-stabilizer tube, a second voltage-stabilizer tube, a slide resistor, a capacitor and an exclusive-OR gate, wherein one end of the first resistor is connected with an input end of the voltage comparator, one end of the second resistor is connected with the other input end of the voltage comparator, an output end of the voltage comparator is connected with one end of the third resistor, the other end of the third resistor is respectively connected with an anode of the first voltage-stabilizer tube, a fixed wiring end of the slide resistor and an input end of the exclusive-OR gate, a cathode of the first voltage-stabilizer tube is connected with a cathode of the second voltage-stabilizer tube, an anode of the second voltage-stabilizer tube is in grounding connection, a slide moving wiring end of the slide resistor is respectively connected with the other input end of the exclusive-OR gate and one end of the capacitor, and the other end of the capacitor is in grounding connection.
Description
Technical field
The utility model relates to communication field, in particular to a kind of distinctive signal edge checkout gear.
Background technology
Domestic and international utilization and research thereof for the waveform edge sense circuit is substantially thorough at present, but utility function is not comprehensive, such as the double edge detection device in some data is only the waveforms detection of digital signal to input signal, but be that what signal does not have corresponding measuring ability for amplitude size and the input of input signal.
The utility model content
The utility model improves prior art, makes it have some special use functions.
the utility model provides a kind of distinctive signal edge checkout gear, it is characterized in that, comprise: the first resistor, the second resistor, voltage comparator, the 3rd resistor, the first voltage-stabiliser tube, the second voltage-stabiliser tube, slide resistor, capacitor and XOR gate, wherein an end of the first resistor is connected to an input of voltage comparator, one end of the second resistor is connected to another input of voltage comparator, the output of this voltage comparator is connected to an end of the 3rd resistor, the other end of the 3rd resistor connects respectively the anode of the first voltage-stabiliser tube, an input of the fixed terminals of slide resistor and XOR gate, the negative electrode of the first voltage-stabiliser tube is connected to the negative electrode of the second voltage-stabiliser tube, the plus earth of this second voltage-stabiliser tube, the slidably terminals of slide resistor connect respectively another input of XOR gate and an end of capacitor, the other end ground connection of this capacitor.
Wherein, the resistance of described the first resistor, described the second resistor and described the 3rd resistor is 1000 ohm.
Wherein, the capacitance of described capacitor is 1 microfarad.
Wherein, the resistance interval of described slide resistor is at 500-1000 ohm.
Beneficial effect
Distinctive signal of the present utility model edge checkout gear is when carrying out signal edge detection, can revise input signal, change amplitude, the pulse amplitude of input signal, simultaneously the adjusting resistance value pulse amplitude that can change output signal meets design requirement making it, and this distinctive signal edge checkout gear also has the function of frequency division simultaneously.
Description of drawings
Fig. 1 is the circuit theory diagrams of distinctive signal of the present utility model edge checkout gear.
Embodiment
as shown in Figure 1, distinctive signal of the present utility model edge checkout gear comprises: the first resistor 1, the second resistor 2, voltage comparator 3, the 3rd resistor 4, the first voltage-stabiliser tube 5, the second voltage-stabiliser tube 6, slide resistor 7, capacitor 8 and XOR gate 9, wherein an end of the first resistor 1 is connected to an input of voltage comparator 3, one end of the second resistor 2 is connected to another input of voltage comparator 3, the output of this voltage comparator 3 is connected to an end of the 3rd resistor 4, the other end of the 3rd resistor 4 connects respectively the anode of the first voltage-stabiliser tube 5, an input of the fixed terminals of slide resistor 7 and XOR gate 9, the negative electrode of the first voltage-stabiliser tube 5 is connected to the negative electrode of the second voltage-stabiliser tube 6, the plus earth of this second voltage-stabiliser tube 6, the slidably terminals of slide resistor 7 connect respectively another input of XOR gate 9 and an end of capacitor 8, the other end ground connection of this capacitor 8.
The other end of described the first and second resistors receives respectively input signal.
In the utility model, the resistance of the first resistor 1, the second resistor 2 and the 3rd resistor 3 is 1000 ohm, and the resistance interval of slide resistor 7 is at 500-1000 ohm, and the capacitance of capacitor 8 is 1 microfarad, and XOR gate 9 adopts the 74HC86 models.
when input signal is analog signal, this analog signal is input to voltage comparator through resistor, be digital signal by voltage comparator with analog signal conversion and this signal carried out the adjustment of pulse duration, adjust amplitude and make it to satisfy semaphore request, this digital signal produces time of delay by the RC circuit of this edge checkout gear, wherein this RC circuit is comprised of slide resistor 7 and capacitor 8, slide rheostat can arbitrarily be adjusted its resistance value so that thereby the variable-magnitude of pulse meets design requirement, detect the edge when rising edge and trailing edge, obtain differentiated pulse output.Distinctive signal of the present utility model edge checkout gear not only can holding circuit being digital signal but also can being that analog signal conversion is digital signal and carries out the check at waveform edge with input originally of input, also can be used as simultaneously 2 frequencys multiplication and use.
Claims (4)
1. distinctive signal edge checkout gear, it is characterized in that, comprise: the first resistor, the second resistor, voltage comparator, the 3rd resistor, the first voltage-stabiliser tube, the second voltage-stabiliser tube, slide resistor, capacitor and XOR gate, wherein an end of the first resistor is connected to an input of voltage comparator, one end of the second resistor is connected to another input of voltage comparator, the output of this voltage comparator is connected to an end of the 3rd resistor, the other end of the 3rd resistor connects respectively the anode of the first voltage-stabiliser tube, an input of the fixed terminals of slide resistor and XOR gate, the negative electrode of the first voltage-stabiliser tube is connected to the negative electrode of the second voltage-stabiliser tube, the plus earth of this second voltage-stabiliser tube, the slidably terminals of slide resistor connect respectively another input of XOR gate and an end of capacitor, the other end ground connection of this capacitor.
2. distinctive signal according to claim 1 edge checkout gear, is characterized in that, the resistance of described the first resistor, described the second resistor and described the 3rd resistor is 1000 ohm.
3. distinctive signal according to claim 1 edge checkout gear, is characterized in that, the capacitance of described capacitor is 1 microfarad.
4. distinctive signal according to claim 1 edge checkout gear, is characterized in that, the resistance interval of described slide resistor is at 500-1000 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678039 CN202998029U (en) | 2012-12-10 | 2012-12-10 | Special signal edge detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220678039 CN202998029U (en) | 2012-12-10 | 2012-12-10 | Special signal edge detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202998029U true CN202998029U (en) | 2013-06-12 |
Family
ID=48569154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220678039 Expired - Fee Related CN202998029U (en) | 2012-12-10 | 2012-12-10 | Special signal edge detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202998029U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558447A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Zero-voltage control circuit for small signals |
| CN106026633A (en) * | 2016-07-15 | 2016-10-12 | 昆山龙腾光电有限公司 | Power converter |
| CN107040246A (en) * | 2017-06-05 | 2017-08-11 | 深圳市国芯盟科技有限公司 | Bilateral delay circuit, chip with dynamic function of reset |
| CN111474461A (en) * | 2020-03-31 | 2020-07-31 | 南京优倍电气有限公司 | Circuit device for detecting failure of switch of functional safety product |
-
2012
- 2012-12-10 CN CN 201220678039 patent/CN202998029U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103558447A (en) * | 2013-10-23 | 2014-02-05 | 国家电网公司 | Zero-voltage control circuit for small signals |
| CN103558447B (en) * | 2013-10-23 | 2016-01-13 | 国家电网公司 | A kind of no-voltage control circuit for tiny signal |
| CN106026633A (en) * | 2016-07-15 | 2016-10-12 | 昆山龙腾光电有限公司 | Power converter |
| CN107040246A (en) * | 2017-06-05 | 2017-08-11 | 深圳市国芯盟科技有限公司 | Bilateral delay circuit, chip with dynamic function of reset |
| CN111474461A (en) * | 2020-03-31 | 2020-07-31 | 南京优倍电气有限公司 | Circuit device for detecting failure of switch of functional safety product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20191210 |