CN209267546U - Automatically testing and the optoelectronic induction driving circuit trimmed - Google Patents
Automatically testing and the optoelectronic induction driving circuit trimmed Download PDFInfo
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- CN209267546U CN209267546U CN201920199681.7U CN201920199681U CN209267546U CN 209267546 U CN209267546 U CN 209267546U CN 201920199681 U CN201920199681 U CN 201920199681U CN 209267546 U CN209267546 U CN 209267546U
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Abstract
The utility model relates to a kind of automatically testings and the optoelectronic induction driving circuit trimmed, circuit includes optoelectronic transceiver circuit, trims circuit, on-line testing circuit, optoelectronic transceiver circuit includes the light emitting unit for accessing the first power supply and the light receiving unit for accessing second source, trim circuit include first connect with light emitting unit trim unit and connect with light receiving unit second trim unit, the transmission of on-line testing circuit trims signal of communication to trim unit to first, the second resistance value for trimming unit trims.It is connect by the way that light emitting unit is trimmed unit with first, light receiving unit is trimmed unit with second to connect, the resistance value of unit is trimmed by trimming first to determine emitted luminescence intensity, and second is trimmed according to emitted luminescence intensity and trims the resistance value of unit to determine the optical responsivity of light receiving unit, so that the voltage output signal of light receiving unit is more accurate, to guarantee that on-line testing circuit is more reliable to the processing result of voltage signal.
Description
Technical field
The utility model relates to a kind of automatically testings and the optoelectronic induction driving circuit trimmed.
Background technique
Optoelectronic induction system is widely used in life due to the features such as its is non-contact, response is fast, structure is simple.Light
Electric induction system utilizes electrooptical device, and the electric signal of transmitting terminal variation is sent out in the form of light intensity variation luminescent device
Out, then in receiving end photoelectric conversion is carried out, converts optical signal into electric signal, recently enters signal processing circuit.Optoelectronic induction
The effect of system mainly detects and controls, and for Photoelectric Detection, the electric signal of variation is usually transformed into non electrical quantity, such as uses up
Electric induction system makees velocity measuring, shape recognition etc.；It is for photo-electric control, then main to carry out circuit control using optical signal, such as
Optoelectronic switch.
When transmitting module in optoelectronic induction system and the electrooptical device in receiving module fail co-ordination, light intensity
Variation be difficult accurately to be extracted, the result of signal processing module also becomes unreliable.Especially multicast optoelectronic induction system
System, if each phototransistor is different to the sensitivity of light intensity in receiving module, obtained electric signal just will appear larger difference
It is different, it is therefore desirable to which that each opto-electronic device operation will be adjusted to while optimum state between photoelectric device in guarantee system
Most matched working condition.
Utility model content
Be simple and convenient to operate the purpose of this utility model is to provide a kind of structure and can solve above-mentioned existing issue can
The automatic optoelectronic induction driving circuit tested and trimmed.
In order to achieve the above objectives, the utility model provides the following technical solutions: a kind of automatically testing and the photoelectricity trimmed
Incude driving circuit, the circuit includes optoelectronic transceiver circuit, with the optoelectronic transceiver circuit connection trims circuit, for connecting
It connects the optoelectronic transceiver circuit and trims the on-line testing circuit of circuit, the optoelectronic transceiver circuit includes the first power supply of access
Light emitting unit and the light receiving unit for accessing second source, the circuit that trims includes the connect with the light emitting unit
One trim unit and connect with the light receiving unit second trim unit, the on-line testing circuit transmission trims communication letter
Number to trim unit to described first, the second resistance value for trimming unit trims.
Further, the circuit that trims further includes and the on-line testing circuit connection and trims signal of communication for described
Processing described first trims unit, second trims the logic unit of unit for control signal to control.
Further, the circuit that trims further includes connecting with the logic unit and for storing the control signal
Storage unit.
Further, the light emitting unit includes luminescent device, and described first, which trims unit, includes the first adjustable driving
The first end of resistance, the luminescent device accesses the first power supply, the second end of the luminescent device and the described first adjustable driving
The first end of resistance connects, the second end ground connection of the first adjustable driving resistance, the control of the first adjustable driving resistance
End is connect with the logic unit.
Further, the light receiving unit includes at least one light shutter device, and described second trims unit including at least
The first end of one the second adjustable driving resistance, each light shutter device accesses second source, each light shutter device
Second end is connect with the first end of each second adjustable driving resistance, the second end of each second adjustable driving resistance
The control terminal of ground connection, each second adjustable driving resistance is connect with the logic unit.
Further, the circuit that trims further includes with the on-line testing circuit connection and for filtering clutter to guarantee
The input signal of the on-line testing circuit is the RC filter unit of useful signal.
Further, the RC filter unit includes resistance and capacitor, the first end of the resistance and the optoelectronic transceiver
Circuit connection, the second end of the resistance are connect with the first end of the capacitor, the second end ground connection of the capacitor.
The utility model has the beneficial effects that: being connect by the way that light emitting unit is trimmed unit with first, by light-receiving
Unit trims unit with second and connect, and trims the resistance value of unit by trimming first to determine emitted luminescence intensity, and according to hair
It penetrates luminous intensity and trims second and trim the resistance value of unit to determine the optical responsivity of light receiving unit, so that the electricity of light receiving unit
Press output signal more accurate, to guarantee that on-line testing circuit is more reliable to the processing result of voltage signal.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the skill of the utility model
Art means, and can be implemented in accordance with the contents of the specification, below on the preferred embodiment of the present invention and the accompanying drawings in detail
It describes in detail bright as after.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the automatically testing and the optoelectronic induction driving circuit trimmed of the utility model.
Fig. 2 is the circuit diagram of the automatically testing and the optoelectronic induction driving circuit trimmed of the utility model.
Fig. 3 is the automatically testing and the process of the design method of the optoelectronic induction driving circuit trimmed of the utility model
Figure.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
Referring to Figure 1 and Fig. 2, the automatically testing in a preferred embodiment of the utility model and the optoelectronic induction trimmed
Driving circuit include optoelectronic transceiver circuit 2, connect with the optoelectronic transceiver circuit 2 trim circuit 3, for connecting the photoelectricity
Transmission circuit 2 and the on-line testing circuit 1 for trimming circuit 3, the optoelectronic transceiver circuit 2 include the light emitting of the first power supply of access
Unit 21 and the light receiving unit 22 for accessing second source, the circuit 3 that trims includes connecting with the light emitting unit 21
First trim unit 31 and connect with the light receiving unit 22 second trim unit 32, the on-line testing circuit 1 is sent
Signal of communication is trimmed to trim unit 31 to described first, the second resistance value for trimming unit 32 trims.
It is described trim circuit 3 further include connect with the on-line testing circuit 1 and by it is described trim signal of communication processing be
Control signal described first trims unit 31, second trims the logic unit 33 of unit 32 to control, and the circuit 3 that trims also wraps
Include the storage unit 34 connecting with the logic unit 33 and for storing the control signal.In the present embodiment, described to patrol
It collects unit 33 and the control signal is being stored in the storage while signal of communication processing is control signal by described trim
In unit 34.Really, in other embodiments, the logic unit 33 can also trim signal of communication processing for described as control
The control signal is stored in the storage unit 34 after signal.
The light emitting unit 21 includes luminescent device, and described first, which trims unit 31, includes the first adjustable driving resistance,
The first end of the luminescent device accesses the first power supply VCC1, the second end of the luminescent device and the described first adjustable driving electricity
The first end of resistance connects, the second end ground connection of the first adjustable driving resistance, the control terminal of the first adjustable driving resistance
It is connect with the logic unit 33.In the present embodiment, the luminescent device is light emitting diode, really, in other embodiments
In, the luminescent device can also be other, it is not limited here.The i.e. described light emitting unit 21 include light emitting diode D1 and with
The first of the light emitting diode D1 connection is adjustable driving resistance R1.According to different applications, first adjustable resistance
Also it can access the first power supply VCC1, i.e., the first end of described first adjustable resistance is connect with the first power supply VCC1, and described first can
The second end of resistance is adjusted to connect with the luminescent device.
The light receiving unit 22 includes at least one light shutter device, described second trim unit 32 include at least one the
Two adjustable driving resistance, the first end of each light shutter device access second source VCC2, and the of each light shutter device
Two ends are connect with the first end of each second adjustable driving resistance, the second termination of each second adjustable driving resistance
The control terminal on ground, each second adjustable driving resistance is connect with the logic unit 33.In the present embodiment, described light-operated
The number of device is 3, then, the number of the second adjustable driving resistance is also 3.Meanwhile the light shutter device is light
Electric transistor, really, in other embodiments, the light shutter device and the second adjustable driving resistance can also be other, herein not
It limits.According to above-mentioned, the light shutter device T1 in the present embodiment is connect with the described second adjustable driving resistance R2；The light
Control device T2 is connect with the described second adjustable driving resistance R3；The light shutter device T3 and with the described second adjustable driving resistance R4
Connection.In other embodiments, if light shutter device and the second adjustable driving resistance are other numbers, successively cis-position is numbered,
This is not illustrated.According to different applications, second adjustable resistance also can access second source VCC2, i.e., described
The first end of second adjustable resistance is connect with second source VCC2, the second end of first adjustable resistance and the light shutter device
Connection.
It is described trim circuit 3 further include connect with the on-line testing circuit 1 and guarantee for filtering clutter it is described
The input signal that line tests circuit 1 is the RC filter unit 35 of useful signal.In the present embodiment, the RC filter circuit output
Voltage signal, the on-line testing circuit 1 is used to receive the voltage signal of the output of RC filter unit 35, and is believed according to the voltage
Number the logic unit 33 is sent and to trim signal of communication accordingly.
The RC filter unit 35 is connect with the light receiving unit 22 comprising resistance and capacitor, the of the resistance
One end is connect with the optoelectronic transceiver circuit 2, and the second end of the resistance is connect with the first end of the capacitor, the capacitor
Second end ground connection.With it is above-mentioned corresponding, in the present embodiment, there are three the RC filter unit 35 settings.First RC filtering is single
Member 35 includes resistance R5 and capacitor C1, second RC filter unit 35 include resistance R6 and capacitor C2, third RC filter unit
35 include resistance R7 and capacitor C3, and successively cis-position is numbered, and is not illustrated herein.
The embodiments of the present invention are connect by the way that light emitting unit 21 is trimmed unit 31 with first, by light receiving unit
22, which trim unit 32 with second, connect, and trims the resistance value of unit 31 by trimming first to determine emitted luminescence intensity, and according to
Emitted luminescence intensity trims second and trims the resistance value of unit 32 to determine the optical responsivity of light receiving unit 22, so that light-receiving list
The voltage output signal of member 22 is more accurate, to guarantee that on-line testing circuit 1 is more reliable to the processing result of voltage signal.
Incorporated by reference to Fig. 3, the utility model additionally provides a kind of automatically testing and the optoelectronic induction driving circuit that trims
Design method, using automatically testing as described above and the optoelectronic induction driving circuit trimmed, the method includes walking as follows
It is rapid:
Step 301, it trims first connect with light emitting unit 21 and trims the resistance value of unit 31 to determine transmitting light intensity
Degree；
Step 302, according to the emitted luminescence intensity, unit 32 is trimmed to second connect with the light receiving unit 22
Resistance value is trimmed to determine optical responsivity.
Before formally trimming, the on-line testing circuit trims signal to trimming circuit and send in advance, described pre- to trim signal
It can make all light shutter devices while to meet optical responsivity consistent；Then signal pair and the luminescent device pre- are trimmed according to this
The first adjustable resistance, each in the light shutter device second it is adjustable driving resistance resistance value trimmed.
When formally trimming:
The on-line testing circuit 1 to it is described trim circuit 3 transmission trim signal of communication；
It is described trim circuit 3 receive it is described trim signal of communication and by the signal processing that trims for control signal；
The control signal function trims unit 31 in described first and second trims unit 32 and trim to described first
Unit 31 and second trim unit 32 resistance value trimmed.Wherein, if described second trim it is second adjustable in unit 32
The number for driving resistance is two or more, trims the electricity with the second adjustable driving resistance in each light shutter device
Resistance value is so that the optical responsivity of each light shutter device is consistent.It is worth noting that, needing adjustable to each second simultaneously
The resistance value of driving resistance is trimmed, and is not trimmed successively.
More specifically, the on-line testing circuit 1 to it is described trim circuit 3 transmission trim signal of communication specifically:
The circuit 3 that trims is to the on-line testing circuit 1 transmission voltage signal；
The on-line testing circuit 1 receives the voltage signal and is to trim signal of communication by voltage signal processing.
In summary: being connect by the way that light emitting unit 21 is trimmed unit 31 with first, by light receiving unit 22 and second
The connection of unit 32 is trimmed, trims the resistance value of unit 31 by trimming first to determine emitted luminescence intensity, and according to transmitting light intensity
Degree trims second and trims the resistance value of unit 32 to determine the optical responsivity of light receiving unit 22, so that the electricity of light receiving unit 22
Press output signal more accurate, to guarantee that on-line testing circuit 1 is more reliable to the processing result of voltage signal.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (7)
1. a kind of automatically testing and the optoelectronic induction driving circuit trimmed, which is characterized in that the circuit includes optoelectronic transceiver
Circuit, with the optoelectronic transceiver circuit connection trim circuit, for connect the optoelectronic transceiver circuit and trim circuit
Line tests circuit, and the optoelectronic transceiver circuit includes the light emitting unit for accessing the first power supply and the light-receiving for accessing second source
Unit, the circuit that trims includes that first connect with the light emitting unit trims unit and connect with the light receiving unit
Second trim unit, the on-line testing circuit transmission trims signal of communication to trim unit to described first, second trim
The resistance value of unit is trimmed.
2. automatically testing as described in claim 1 and the optoelectronic induction driving circuit trimmed, which is characterized in that described to trim
Circuit further includes that trim signal of communication processing described to control for control signal with the on-line testing circuit connection and by described
First trims unit, second trims the logic unit of unit.
3. automatically testing as claimed in claim 2 and the optoelectronic induction driving circuit trimmed, which is characterized in that described to trim
Circuit further includes connecting with the logic unit and for storing the storage unit for controlling signal.
4. automatically testing as claimed in claim 2 and the optoelectronic induction driving circuit trimmed, which is characterized in that the light hair
Penetrating unit includes luminescent device, and described first, which trims unit, includes the first adjustable driving resistance, the first end of the luminescent device
The first power supply is accessed, the second end of the luminescent device is connect with the first end of the described first adjustable driving resistance, and described first
The control terminal of the second end ground connection of adjustable driving resistance, the first adjustable driving resistance is connect with the logic unit.
5. automatically testing as claimed in claim 2 and the optoelectronic induction driving circuit trimmed, which is characterized in that the light connects
Receiving unit includes at least one light shutter device, and described second to trim unit include at least one second adjustable driving resistance, each
The first end of the light shutter device accesses second source, and the second end of each light shutter device and each described second can transfer drive
The first end connection of dynamic resistance, the second end ground connection of each second adjustable driving resistance, each second adjustable driving
The control terminal of resistance is connect with the logic unit.
6. automatically testing as described in claim 1 and the optoelectronic induction driving circuit trimmed, which is characterized in that described to trim
Circuit further includes believing with the on-line testing circuit connection and for filtering clutter with the input for guaranteeing the on-line testing circuit
Number be useful signal RC filter unit.
7. automatically testing as claimed in claim 6 and the optoelectronic induction driving circuit trimmed, which is characterized in that the RC filter
Wave unit includes resistance and capacitor, the first end of the resistance and the optoelectronic transceiver circuit connection, the second end of the resistance
It is connect with the first end of the capacitor, the second end ground connection of the capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199681.7U CN209267546U (en) | 2019-02-14 | 2019-02-14 | Automatically testing and the optoelectronic induction driving circuit trimmed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920199681.7U CN209267546U (en) | 2019-02-14 | 2019-02-14 | Automatically testing and the optoelectronic induction driving circuit trimmed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209267546U true CN209267546U (en) | 2019-08-16 |
Family
ID=67585306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920199681.7U Withdrawn - After Issue CN209267546U (en) | 2019-02-14 | 2019-02-14 | Automatically testing and the optoelectronic induction driving circuit trimmed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209267546U (en) |
-
2019
- 2019-02-14 CN CN201920199681.7U patent/CN209267546U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20230926 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190816 Effective date of abandoning: 20230926 |