CN204190729U - A kind of pulse amplitude adjustment unit - Google Patents
A kind of pulse amplitude adjustment unit Download PDFInfo
- Publication number
- CN204190729U CN204190729U CN201420697367.9U CN201420697367U CN204190729U CN 204190729 U CN204190729 U CN 204190729U CN 201420697367 U CN201420697367 U CN 201420697367U CN 204190729 U CN204190729 U CN 204190729U
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- output
- pulse
- adjustment unit
- amplitude adjustment
- change
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Abstract
The utility model relates to a kind of pulse amplitude adjustment unit, is connected and composed successively by D/A change-over circuit, level operational amplification circuit and current driving circuit; D/A change-over circuit input is digital level control end, D/A change-over circuit output is analog voltage output, the output of current driving circuit is setting voltage value output, beneficial effect: multiplex pulse amplitude adjustment unit is applied to multiple-channel output synchronized-pulse control system, the output amplitude that pulse amplitude adjustment unit realizes pulse signals controls, and makes the adjustable pulse signal that system output signal amplitude is different.
Description
Technical field
The utility model relates to
electronic measurement system, be specifically related to a kind of pulse amplitude adjustment unit, can be applicable to multiple-channel output synchronized-pulse control system.
Background technology
In test, measuring system, pulse signal time many, is needed to control instrument, equipment.Namely this pulse signal is provided by pulse signal generator.Universal impulse signal generator only has 1 to 2 road output of pulse signals mostly, even if there is multichannel output of pulse signal, general pulse duration and pulse amplitude are also fixing.Along with the development of observation and control technology, in a lot of application scenario, if complete test, measurement task, need to gather a large amount of test data, use multiple stage or multiple testing equipment collaborate to test.For ensureing efficiently, rapidly to test, need to carry out sequencing control to these testing equipments, multiplex pulse control signal is provided, but the parameter such as pulse duration, time of delay, pulse amplitude of each road pulse control signal is different, universal impulse signal generator often can not meet this demand, and pulse amplitude adjustment unit has important function in test, measuring system.
Summary of the invention
The purpose of this utility model, exactly for overcoming the deficiencies in the prior art, in order to the development of adaptive testing, measuring system, meets the demand of special test environment, provides a kind of pulse amplitude adjustment unit, is applied to multiple-channel output synchronized-pulse control system.The output amplitude that pulse amplitude adjustment unit realizes pulse signals controls, and makes the adjustable pulse signal that system output signal amplitude is different, realizes each road pulse amplitude and arrange separately.
The utility model is realized by such technical scheme: a kind of pulse amplitude adjustment unit, is characterized in that: system is connected and composed successively by D/A change-over circuit, level operational amplification circuit and current driving circuit; D/A change-over circuit input is digital level control end, and D/A change-over circuit output is analog voltage output, and the output of current driving circuit is setting voltage value output.
the utility model beneficial effect: multichannelpulse amplitude adjustment unit is applied to multiple-channel output synchronized-pulse control system, and the output amplitude that pulse amplitude adjustment unit realizes pulse signals controls, and makes the adjustable pulse signal that system output signal amplitude is different.
Accompanying drawing explanation
Fig. 1 is pulse amplitude adjustment unit schematic diagram.
Fig. 2 is multiple-channel output synchronized-pulse control system schematic.
Embodiment
As shown in Figure 1, a kind of pulse amplitude adjustment unit, system is connected and composed successively by D/A change-over circuit, level operational amplification circuit and current driving circuit; D/A change-over circuit input is digital level control end, and D/A change-over circuit output is analog voltage output, and the output of current driving circuit is setting voltage value output.
As shown in Figure 2, in multiple-channel output synchronized-pulse control system, controling parameters processing unit comprises microcontroller, keypad, display screen, serial ports, network interface.Microcontroller is the core devices of controling parameters processing unit.The LPC2378 of NXP company selected by microcontroller.LPC2378, based on ARM7 kernel, can provide serial ports, SPI interface, network interface, the multiple kinds interfaces such as USB.Microcontroller completes the reception of parameter setting instruction, process, transmission and display and control in real time.As shown in Figure 1, microcontroller is connected with pulse signal generation unit with address bus by data/address bus, is connected with pulse amplitude adjustment unit by SPI interface.Controling parameters data through process, are issued pulse signal generation unit and pulse amplitude adjustment unit after receiving outside state modulator instruction of sending by microcontroller.Microcontroller is also connected with display screen simultaneously, is arranged by controling parameters and shows on a display screen in real time.External parameter control command can be arranged in this locality by keypad, also can be arranged at far-end by serial ports or network interface, thus adapts to various application occasions.
Pulse amplitude adjustment unit receives the digitlization level control parameter that microcontroller is sent, and through D/A conversion, is converted to analog voltage and gives level operational amplification circuit and amplify, reach setting voltage.In order to put forward high-tension driving force, again through current driving circuit, the analog voltage set by output.
According to the above description, scheme of the present utility model can be realized in conjunction with art technology.
Claims (1)
1. a pulse amplitude adjustment unit, is characterized in that: system is connected and composed successively by D/A change-over circuit, level operational amplification circuit and current driving circuit; D/A change-over circuit input is digital level control end, and D/A change-over circuit output is analog voltage output, and the output of current driving circuit is setting voltage value output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697367.9U CN204190729U (en) | 2014-11-19 | 2014-11-19 | A kind of pulse amplitude adjustment unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697367.9U CN204190729U (en) | 2014-11-19 | 2014-11-19 | A kind of pulse amplitude adjustment unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204190729U true CN204190729U (en) | 2015-03-04 |
Family
ID=52622698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420697367.9U Expired - Fee Related CN204190729U (en) | 2014-11-19 | 2014-11-19 | A kind of pulse amplitude adjustment unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204190729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579431A (en) * | 2019-09-17 | 2019-12-17 | 宁波科赛迪电子科技有限公司 | Self-adaptive dimmer and dimming measuring method thereof |
-
2014
- 2014-11-19 CN CN201420697367.9U patent/CN204190729U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579431A (en) * | 2019-09-17 | 2019-12-17 | 宁波科赛迪电子科技有限公司 | Self-adaptive dimmer and dimming measuring method thereof |
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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 |
Granted publication date: 20150304 Termination date: 20181119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |