CN204705660U - A kind of simulating signal opto-electronic conversion drive unit possessing enlarging function - Google Patents
A kind of simulating signal opto-electronic conversion drive unit possessing enlarging function Download PDFInfo
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- CN204705660U CN204705660U CN201520363942.6U CN201520363942U CN204705660U CN 204705660 U CN204705660 U CN 204705660U CN 201520363942 U CN201520363942 U CN 201520363942U CN 204705660 U CN204705660 U CN 204705660U
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- amplifying apparatus
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- electronic conversion
- automobile bus
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Abstract
The utility model discloses a kind of simulating signal opto-electronic conversion drive unit possessing enlarging function, described simulating signal opto-electronic conversion drive unit comprises: the waveform generator that can produce basis signal; A/D sampling thief, described A/D sampling thief is connected with waveform generator; D/A converter, described D/A converter is connected with A/D sampling thief by optical fiber; Signal amplifying apparatus, described signal amplifying apparatus is connected with D/A converter; Automobile bus module, the signal after signal amplifying apparatus amplification is sent to test sample by described automobile bus module; Power module, described power module respectively with signal amplifying apparatus and automobile bus model calling.The utility model is installed simple and easy, be convenient to change, applied widely, VD 0 to 20 volt and the average anode current that can meet auto parts and components drive singal can reach 500 milliamperes and above signal input requirements, and have splendid electromagnetism antijamming capability simultaneously.
Description
Technical field
The utility model relates to a kind of checkout equipment, is specifically related to a kind of simulating signal opto-electronic conversion drive unit possessing enlarging function.
Background technology
The drive singal of auto parts and components refers to the working signal of the normal need of work of auto parts and components, and this signal is generally waveform signal.For making auto parts and components be driven, the voltage magnitude of this drive singal usually need between 9 volts to 16 volts.But the similar products of famous brand name only can export the drive current of maximum 10 milliamperes at present, such as, for some auto parts and components, Coilpack, the requirement that it drives cannot be met at home and abroad at all.Typically, according to the drive singal requirement of Coilpack, at least need to provide the drive current of 15 milliamperes can make the total normal ignition running of ignition coil, and photoelectric conversion device current in addition, general output current is about 10 milliamperes, and cannot overall application at all auto parts and components.
Utility model content
The utility model in order to solve the problem, thus provides a kind of simulating signal opto-electronic conversion drive unit possessing enlarging function.
For achieving the above object, the technical solution of the utility model is as follows:
Possess a simulating signal opto-electronic conversion drive unit for enlarging function, described simulating signal opto-electronic conversion drive unit comprises:
The waveform generator of basis signal can be produced;
A/D sampling thief, described A/D sampling thief is connected with waveform generator;
D/A converter, described D/A converter is connected with A/D sampling thief by optical fiber;
Signal amplifying apparatus, described signal amplifying apparatus is connected with D/A converter;
Automobile bus module, the signal after signal amplifying apparatus amplification is sent to test sample by described automobile bus module automobile bus module;
Power module, described power module respectively with signal amplifying apparatus and automobile bus model calling.
In a preferred embodiment of the present utility model, described power module is provided with three groups of power supply chips, often organizes on power supply chip and is all provided with interference cancellation circuit.
In a preferred embodiment of the present utility model, described automobile bus module is the chip module meeting CANBus and LINBus communications protocol.
By technique scheme, the beneficial effects of the utility model are:
The utility model is installed simple and easy, be convenient to change, applied widely, VD 0 to 20 volt and the average anode current that can meet auto parts and components drive singal can reach 500 milliamperes and above signal input requirements, and there is splendid electromagnetism antijamming capability simultaneously, can bear up to 200V/m at all band 1MHz to the 4GHz of test, particularly more can bear the electromagnetic field up to 600V/m at radar pulse wave bands such as 1.2GHz to 1.4GHz and 2.7GHz to 3.1GHz.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use schematic diagram of the present utility model;
Fig. 3 is the structural representation of power module.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
See Fig. 1, the simulating signal opto-electronic conversion drive unit of what the utility model provided possess enlarging function, it is made up of waveform generator 100, A/D sampling thief 200, D/A converter 300, signal amplifying apparatus 400, automobile bus module 500 and power module 600.
Waveform generator 100, it can be disposable type, only needs to produce basis signal.
A/D sampling thief 200, itself and waveform generator 100 are connected, and it is that basis signal for being produced by waveform generator 100 converts digital signal to.
D/A converter 300, it carries out filtering for the digital signal after being changed by A/D sampling thief 200, and convert the discernible simulating signal of signal amplifying apparatus 400 to.
In addition, D/A converter 300 is connected with A/D sampling thief 200 by optical fiber 310, effectively can avoid electromagnetic interference (EMI) like this.
Signal amplifying apparatus 400, it is connected with D/A converter 300, and it is for carrying out differential amplification to the simulating signal after D/A converter 300 conversion.
Signal amplifying apparatus 400 drive current of output can be increased to 500 milliamperes and more than, the measurement result of strong electromagnetic noise interference auto parts and components can not be produced when can also guarantee Signal transmissions.
Automobile bus module 500, it is connected with signal amplifying apparatus 400 and sample 700 respectively, and it sends to sample 700 to test for the signal after signal amplifying apparatus 400 is carried out differential amplification.
Automobile bus module 500 is specially the chip module meeting CANBus and LINBus communications protocol.
See Fig. 3, power module 600, it is connected with signal amplifying apparatus 400 and automobile bus module 500 respectively, and it is used to signal amplifying apparatus 400 and automobile bus module 500 provides electric power, it is specifically provided with three groups of power supply chips, often organizes on power supply chip and is all provided with interference cancellation circuit.
For the interference noise that effective filter out power chip produces, often organize in the interference cancellation circuit of power supply chip the pi type filter being designed with bulky capacitor, shunt capacitance and differential mode inductance and forming.
See Fig. 1 and Fig. 2, the utility model use principle is as follows:
First the basis signal of generation is sent to A/D sampling thief 200 by waveform generator 100, A/D sampling thief 200 is by basis signal digital signal, and send to D/A converter 300 by optical fiber 310, the digital signal received is carried out filtering by D/A converter 300, and convert the discernible simulating signal of signal amplifying apparatus 400 to, and the signal after conversion is sent to automobile bus module 500, the signal after signal amplifying apparatus 400 is carried out differential amplification by automobile bus module 500 sends to sample 700 to test.
This device is integrated with all relevant parts and function, and integrated parts and function are the lithium battery groups of linear differential amplification circuit module, analog digital sample circuit module, photoelectric converting function module and low noise sound pitch shielding properties.In addition, the high-speed controller Area Network bus (CANBus), low speed controller Area Network bus (CANBus) and the regional interconnection network-bus (LINBus) that the most often use of the integrated current automobile of this device.
In addition, this device uses D type interface and the USB interface of 9 pins at car bus interface, can the automobile bus communication monitoring equipment of compatible domestic and international well-known label.In addition, design the impedance network coupling auxiliary needed for all kinds of automobile bus, user can control accordingly to arrange according to its auto parts and components and select suitable coupling auxiliary, like a cork by this device and its bus apparatus, auto parts and components connecting communication.
More than show and describe ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. possess a simulating signal opto-electronic conversion drive unit for enlarging function, it is characterized in that, described simulating signal opto-electronic conversion drive unit comprises:
The waveform generator of basis signal can be produced;
A/D sampling thief, described A/D sampling thief is connected with waveform generator;
D/A converter, described D/A converter is connected with A/D sampling thief by optical fiber;
Signal amplifying apparatus, described signal amplifying apparatus is connected with D/A converter;
Automobile bus module, the signal after signal amplifying apparatus amplification is sent to test sample by described automobile bus module automobile bus module;
Power module, described power module respectively with signal amplifying apparatus and automobile bus model calling.
2. a kind of simulating signal opto-electronic conversion drive unit possessing enlarging function according to claim 1, it is characterized in that, described power module is provided with three groups of power supply chips, often organizes on power supply chip and is all provided with interference cancellation circuit.
3. a kind of simulating signal opto-electronic conversion drive unit possessing enlarging function according to claim 1, it is characterized in that, described automobile bus module is the chip module meeting CANBus and LINBus communications protocol.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520363942.6U CN204705660U (en) | 2015-05-29 | 2015-05-29 | A kind of simulating signal opto-electronic conversion drive unit possessing enlarging function |
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| CN201520363942.6U CN204705660U (en) | 2015-05-29 | 2015-05-29 | A kind of simulating signal opto-electronic conversion drive unit possessing enlarging function |
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| CN204705660U true CN204705660U (en) | 2015-10-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111012A (en) * | 2017-12-14 | 2018-06-01 | 北京卫星制造厂 | A kind of high-power power supply and high-voltage motor drive module match circuit |
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2015
- 2015-05-29 CN CN201520363942.6U patent/CN204705660U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108111012A (en) * | 2017-12-14 | 2018-06-01 | 北京卫星制造厂 | A kind of high-power power supply and high-voltage motor drive module match circuit |
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