CN201698138U - Impulse current type movable optical filter drive circuit and movable optical filter device - Google Patents
Impulse current type movable optical filter drive circuit and movable optical filter device Download PDFInfo
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- CN201698138U CN201698138U CN2010202382991U CN201020238299U CN201698138U CN 201698138 U CN201698138 U CN 201698138U CN 2010202382991 U CN2010202382991 U CN 2010202382991U CN 201020238299 U CN201020238299 U CN 201020238299U CN 201698138 U CN201698138 U CN 201698138U
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Abstract
The utility model belongs to the technical field of movable optical filters, and provides an impulse current type movable optical filter drive circuit and a movable optical filter device. The impulse current type movable optical filter drive circuit comprises a high-low level generation unit, an RC oscillation unit and a driving unit. In the utility model, the impulse current type movable optical filter drive circuit comprises discrete components, so that compared with the conventional movable optical filter drive circuit including integrated chips, the movable optical filter drive circuit has low cost.
Description
Technical field
The utility model belongs to the mobile spectral filter technical field, relates in particular to a kind of Pulse Electric flow pattern mobile spectral filter driving circuit and mobile spectral filter device.
Background technology
The another name of optical filter be optical low-pass filter (Optical Low Pass Filter, OLPF), its main function be revise charge-coupled image sensor (Charge Coupled Device, CCD) advance the infrared ray that light and filtering colored CCD advance light.With regard to the back function of OLPF, CCD under any circumstance needs the filtering infrared ray, for example, when illumination condition is poor, in order to obtain distinct image more, thereby need make CCD experience light as much as possible and can experience infrared light, in this case, can not re-use optical filter; Another kind of opposite situation is when illumination condition is relatively good, CCD does not need infrared ray just can produce better image, in this case, if CCD has experienced infrared light, can cause the skew of color of image on the contrary, just need an optical filter filtering infrared light this moment.
Therefore, according to the varying environment that video camera uses, need to switch the duty of optical filter, this demand has produced mobile spectral filter, and it closes optical filter under the situation of insufficient light, make CCD experience more rays; Under well-lighted situation, open optical filter, avoid CCD to experience the deviation that infrared light causes color of image.
Mobile spectral filter comprises Pulse Electric flow pattern mobile spectral filter, and existing Pulse Electric flow pattern mobile spectral filter driving circuit adopts integrated chip, causes the with high costs of Pulse Electric flow pattern mobile spectral filter driving circuit.
The utility model content
The purpose of this utility model is to provide a kind of Pulse Electric flow pattern mobile spectral filter driving circuit, is intended to solve present Pulse Electric flow pattern mobile spectral filter driving circuit and has the high problem of cost.
The utility model is achieved in that a kind of Pulse Electric flow pattern mobile spectral filter driving circuit, and described mobile spectral filter driving circuit comprises:
Input end contacts the signalling source, trigger pip is converted to the high-low level generation unit of high level and low level output respectively;
Import the output terminal of the described high-low level generation unit of termination, described high level is become the RC oscillating unit of driving pulse with low transition; And
Input end connects the output terminal of described high-low level generation unit and RC oscillating unit respectively, and output termination mobile spectral filter converts described driving pulse to the driver element of the drive signal that is used to drive described mobile spectral filter;
Described high-low level generation unit comprises:
First on-off element, second switch element, divider resistance R2, divider resistance R7 and divider resistance R9;
First end of described divider resistance R9 is the input end of high-low level generation unit, the control end of the second termination second switch element of described divider resistance R9, the second end ground connection of described second switch element, first end of described second switch element is second output terminal of high-low level generation unit, first end of described second switch element is leaded up to divider resistance R7 and is connect power supply, another road of first end of described second switch element connects the control end of first on-off element, the second end ground connection of described first on-off element, first end of described first on-off element connects power supply by divider resistance R2, and first end of described first on-off element is first output terminal of high-low level generation unit.
In the said structure, described first on-off element is metal-oxide-semiconductor Q2, and the grid of described metal-oxide-semiconductor Q2 is the control end of first on-off element, and the drain electrode of described metal-oxide-semiconductor Q2 is first end of first on-off element, and the source electrode of described metal-oxide-semiconductor Q2 is second end of first on-off element; Described second switch element is triode Q6, and the base stage of described triode Q6 is the control end of second switch element, and the current collection of described triode Q6 is first end of second switch element very, and the emission of described triode Q6 is second end of second switch element very.
In the said structure, described RC oscillating unit comprises:
Divider resistance R3, divider resistance R5, divider resistance R8, divider resistance R10, storage capacitor C1 and storage capacitor C2;
First end of described divider resistance R3 is first output terminal that the first input end of RC oscillating unit connects described high-low level generation unit, second end of described divider resistance R3 is that first output terminal of RC oscillating unit passes through divider resistance R5 ground connection, be connected to storage capacitor C1 between first end of described divider resistance R3 and second end, first end of described divider resistance R8 is second output terminal of the described high-low level generation unit of the second input termination of RC oscillating unit, second end of described divider resistance R8 is that second output terminal of RC oscillating unit passes through divider resistance R10 ground connection, is connected to storage capacitor C2 between first end of described divider resistance R8 and second end.
In the said structure, described driver element comprises:
Divider resistance R1, divider resistance R4, the 3rd on-off element, the 4th on-off element, the 5th on-off element and the 6th on-off element;
The control end of described the 3rd on-off element is first output terminal that the first input end of driver element connects described high-low level generation unit, second end of described the 3rd on-off element connects power supply by divider resistance R1, first end of described the 3rd on-off element is the described mobile spectral filter of the first output termination of driver element, first end of first termination the 4th on-off element of described the 3rd on-off element, the second end ground connection of described the 4th on-off element, the control end of described the 4th on-off element are first output terminal of the described RC oscillating unit of the second input termination of driver element;
The control end of described the 5th on-off element is second output terminal of the described high-low level generation unit of the 3rd input termination of driver element, second end of described the 5th on-off element connects power supply by divider resistance R4, first end of described the 5th on-off element is the described mobile spectral filter of the second output termination of driver element, first end of first termination the 6th on-off element of described the 5th on-off element, the second end ground connection of described the 6th on-off element, the control end of described the 6th on-off element is second output terminal that the four-input terminal of driver element connects described RC oscillating unit.
In the said structure, described the 3rd on-off element is metal-oxide-semiconductor Q1, and the grid of described metal-oxide-semiconductor Q1 is the control end of the 3rd on-off element, and the drain electrode of described metal-oxide-semiconductor Q1 is first end of the 3rd on-off element, and the source electrode of described metal-oxide-semiconductor Q1 is second end of the 3rd on-off element.
In the said structure, described the 4th on-off element is metal-oxide-semiconductor Q3, and the grid of described metal-oxide-semiconductor Q3 is the control end of the 4th on-off element, and the drain electrode of described metal-oxide-semiconductor Q3 is first end of the 4th on-off element, and the source electrode of described metal-oxide-semiconductor Q3 is second end of the 4th on-off element.
In the said structure, described the 5th on-off element is metal-oxide-semiconductor Q4, and the grid of described metal-oxide-semiconductor Q4 is the control end of the 5th on-off element, and the drain electrode of described metal-oxide-semiconductor Q4 is first end of the 5th on-off element, and the source electrode of described metal-oxide-semiconductor Q4 is second end of the 5th on-off element.
In the said structure, described the 6th on-off element is metal-oxide-semiconductor Q5, and the grid of described metal-oxide-semiconductor Q5 is the control end of the 6th on-off element, and the drain electrode of described metal-oxide-semiconductor Q5 is first end of the 6th on-off element, and the source electrode of described metal-oxide-semiconductor Q5 is second end of the 6th on-off element.
Another purpose of the present utility model is to provide a kind of mobile spectral filter device, comprises mobile spectral filter, and described mobile spectral filter device also comprises above-mentioned Pulse Electric flow pattern mobile spectral filter driving circuit.
In the utility model, Pulse Electric flow pattern mobile spectral filter driving circuit comprises high-low level generation unit, RC oscillating unit and driver element, this Pulse Electric flow pattern mobile spectral filter driving circuit adopts discrete component to constitute, adopt integrated chip before comparing, this mobile spectral filter driving circuit with low cost.
Description of drawings
Fig. 1 is the structural drawing of the Pulse Electric flow pattern mobile spectral filter driving circuit that provides of the utility model embodiment;
Fig. 2 is the exemplary circuit figure of the Pulse Electric flow pattern mobile spectral filter driving circuit that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment provides a kind of Pulse Electric flow pattern mobile spectral filter driving circuit to comprise high-low level generation unit, RC oscillating unit and driver element, this Pulse Electric flow pattern mobile spectral filter driving circuit adopts discrete component to constitute, adopt integrated chip before comparing, this mobile spectral filter driving circuit with low cost.
Fig. 1 shows the structure of the Pulse Electric flow pattern mobile spectral filter driving circuit that the utility model embodiment provides.
Pulse Electric flow pattern mobile spectral filter driving circuit comprises high-low level generation unit 100, RC oscillating unit 200 and driver element 300;
The input end contact signalling source of high-low level generation unit 100 converts trigger pip to high level and low level output respectively;
The output terminal of the input termination high-low level generation unit 100 of RC oscillating unit 200 becomes driving pulse with high level with low transition;
The input end of driver element 300 connects the output terminal of high-low level generation unit 100 and RC oscillating unit 200 respectively, and output termination mobile spectral filter converts driving pulse to the drive signal that is used to drive mobile spectral filter.
Fig. 2 shows the exemplary circuit structure of the Pulse Electric flow pattern mobile spectral filter driving circuit that the utility model embodiment provides.
As the utility model one embodiment, high-low level generation unit 100 comprises:
First on-off element 101, second switch element 102, divider resistance R2, divider resistance R7 and divider resistance R9;
First end of divider resistance R9 is the input end of high-low level generation unit 100, the control end of the second termination second switch element 102 of divider resistance R9, the second end ground connection of second switch element 102, first end of second switch element 102 is second output terminal of high-low level generation unit 100, first end of second switch element 102 is leaded up to divider resistance R7 and is met power supply VCC, another road of first end of second switch element 102 connects the control end of first on-off element 101, the second end ground connection of first on-off element 101, first end of first on-off element 101 meets power supply VCC by divider resistance R2, and first end of first on-off element 101 is first output terminal of high-low level generation unit 100.
As the utility model one embodiment, first on-off element 101 is metal-oxide-semiconductor Q2, the grid of metal-oxide-semiconductor Q2 is the control end of first on-off element 101, and the drain electrode of metal-oxide-semiconductor Q2 is first end of first on-off element 101, and the source electrode of metal-oxide-semiconductor Q2 is second end of first on-off element 101; Second switch element 102 is triode Q6, and the base stage of triode Q6 is the control end of second switch element 102, and the current collection of triode Q6 is first end of second switch element 102 very, and the emission of triode Q6 is second end of second switch element 102 very.
As the utility model one embodiment, RC oscillating unit 200 comprises:
Divider resistance R3, divider resistance R5, divider resistance R8, divider resistance R10, storage capacitor C1 and storage capacitor C2;
First end of divider resistance R3 is first output terminal that the first input end of RC oscillating unit 200 connects high-low level generation unit 100, second end of divider resistance R3 is that first output terminal of RC oscillating unit 200 passes through divider resistance R5 ground connection, be connected to storage capacitor C1 between first end of divider resistance R3 and second end, first end of divider resistance R8 is second output terminal of the second input termination high-low level generation unit 100 of RC oscillating unit 200, second end of divider resistance R8 is that second output terminal of RC oscillating unit 200 passes through divider resistance R10 ground connection, is connected to storage capacitor C2 between first end of divider resistance R8 and second end.
As the utility model one embodiment, driver element 300 comprises:
Divider resistance R1, divider resistance R4, the 3rd on-off element 301, the 4th on-off element 302, the 5th on-off element 303 and the 6th on-off element 304;
The control end of the 3rd on-off element 301 is first output terminal that the first input end of driver element 300 connects high-low level generation unit 100, second end of the 3rd on-off element 301 meets power supply VCC by divider resistance R1, first end of the 3rd on-off element 301 is the first output termination mobile spectral filter of driver element 300, first end of first termination the 4th on-off element 302 of the 3rd on-off element 301, the second end ground connection of the 4th on-off element 302, the control end of the 4th on-off element 302 are first output terminal of the second input termination RC oscillating unit 200 of driver element 300;
The control end of the 5th on-off element 303 is second output terminal of the 3rd input termination high-low level generation unit 100 of driver element 300, second end of the 5th on-off element 303 meets power supply VCC by divider resistance R4, first end of the 5th on-off element 303 is the second output termination mobile spectral filter of driver element 300, first end of first termination the 6th on-off element 304 of the 5th on-off element 303, the second end ground connection of the 6th on-off element 304, the control end of the 6th on-off element 304 is second output terminal that the four-input terminal of driver element 300 connects RC oscillating unit 200.
As the utility model one embodiment, the 3rd on-off element 301 is metal-oxide-semiconductor Q1, the grid of metal-oxide-semiconductor Q1 is the control end of the 3rd on-off element 301, and the drain electrode of metal-oxide-semiconductor Q1 is first end of the 3rd on-off element 301, and the source electrode of metal-oxide-semiconductor Q1 is second end of the 3rd on-off element 301.
As the utility model one embodiment, the 4th on-off element 302 is metal-oxide-semiconductor Q3, the grid of metal-oxide-semiconductor Q3 is the control end of the 4th on-off element 302, and the drain electrode of metal-oxide-semiconductor Q3 is first end of the 4th on-off element 302, and the source electrode of metal-oxide-semiconductor Q3 is second end of the 4th on-off element 302.
As the utility model one embodiment, the 5th on-off element 303 is metal-oxide-semiconductor Q4, the grid of metal-oxide-semiconductor Q4 is the control end of the 5th on-off element 303, and the drain electrode of metal-oxide-semiconductor Q4 is first end of the 5th on-off element 303, and the source electrode of metal-oxide-semiconductor Q4 is second end of the 5th on-off element 303.
As the utility model one embodiment, the 6th on-off element 304 is metal-oxide-semiconductor Q5, the grid of metal-oxide-semiconductor Q5 is the control end of the 6th on-off element 304, and the drain electrode of metal-oxide-semiconductor Q5 is first end of the 6th on-off element 304, and the source electrode of metal-oxide-semiconductor Q5 is second end of the 6th on-off element 304.
The utility model embodiment also provides a kind of mobile spectral filter device, comprises mobile spectral filter, and the mobile spectral filter device also comprises above-mentioned Pulse Electric flow pattern mobile spectral filter driving circuit.
The following describes the course of work of Pulse Electric flow pattern mobile spectral filter driving circuit:
The input end contact signalling source of mobile spectral filter driving circuit, trigger signal source output high-low level persistent signal, during daytime, trigger signal source output low level persistent signal, during night, trigger signal source output high level persistent signal.
During daytime, trigger signal source output low level persistent signal, the drain electrode of metal-oxide-semiconductor Q2 is a low level, the first output terminal output low level signal of RC oscillating unit 200, metal-oxide-semiconductor Q3 ends, metal-oxide-semiconductor Q1 conducting, first output terminal output high level of driver element 300; Meanwhile, the current collection of triode Q6 is high level very, the high level signal of second output terminal output certain time-delay of RC oscillating unit 200, this time-delay high level makes metal-oxide-semiconductor Q5 conducting, simultaneously because the grid of metal-oxide-semiconductor Q4 connects the input end of RC oscillating unit 200, be not subjected to time-delay to influence remain off, the then second output terminal output low level of driver element 300.
During night, trigger signal source output high level persistent signal, the drain electrode of metal-oxide-semiconductor Q2 is a high level, the high level signal of first output terminal output certain time-delay of RC oscillating unit 200, the delay time of this high level is regulated (for example: keep high level 500ms time-delay) according to different optical filters are required, this time-delay high level makes metal-oxide-semiconductor Q3 produce the ON time of about 500ms, simultaneously because the grid of metal-oxide-semiconductor Q1 connects the input end of RC oscillating unit 200, not influenced by time-delay, remain off, the then first output terminal output low level of driver element 300; Meanwhile, the current collection of triode Q6 is low level very, the second output terminal output low level signal of RC oscillating unit 200, and metal-oxide-semiconductor Q5 ends, metal-oxide-semiconductor Q4 conducting, second output terminal output high level of driver element 300.
In the utility model, Pulse Electric flow pattern mobile spectral filter driving circuit comprises high-low level generation unit, RC oscillating unit and driver element, this Pulse Electric flow pattern mobile spectral filter driving circuit adopts discrete component to constitute, adopt integrated chip before comparing, this mobile spectral filter driving circuit with low cost.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (9)
1. Pulse Electric flow pattern mobile spectral filter driving circuit is characterized in that described mobile spectral filter driving circuit comprises:
Input end contacts the signalling source, trigger pip is converted to the high-low level generation unit of high level and low level output respectively;
Import the output terminal of the described high-low level generation unit of termination, described high level is become the RC oscillating unit of driving pulse with low transition; And
Input end connects the output terminal of described high-low level generation unit and RC oscillating unit respectively, and output termination mobile spectral filter converts described driving pulse to the driver element of the drive signal that is used to drive described mobile spectral filter;
Described high-low level generation unit comprises:
First on-off element, second switch element, divider resistance R2, divider resistance R7 and divider resistance R9;
First end of described divider resistance R9 is the input end of high-low level generation unit, the control end of the second termination second switch element of described divider resistance R9, the second end ground connection of described second switch element, first end of described second switch element is second output terminal of high-low level generation unit, first end of described second switch element is leaded up to divider resistance R7 and is connect power supply, another road of first end of described second switch element connects the control end of first on-off element, the second end ground connection of described first on-off element, first end of described first on-off element connects power supply by divider resistance R2, and first end of described first on-off element is first output terminal of high-low level generation unit.
2. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 1, it is characterized in that, described first on-off element is metal-oxide-semiconductor Q2, the grid of described metal-oxide-semiconductor Q2 is the control end of first on-off element, the drain electrode of described metal-oxide-semiconductor Q2 is first end of first on-off element, and the source electrode of described metal-oxide-semiconductor Q2 is second end of first on-off element; Described second switch element is triode Q6, and the base stage of described triode Q6 is the control end of second switch element, and the current collection of described triode Q6 is first end of second switch element very, and the emission of described triode Q6 is second end of second switch element very.
3. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 1 is characterized in that described RC oscillating unit comprises:
Divider resistance R3, divider resistance R5, divider resistance R8, divider resistance R10, storage capacitor C1 and storage capacitor C2;
First end of described divider resistance R3 is first output terminal that the first input end of RC oscillating unit connects described high-low level generation unit, second end of described divider resistance R3 is that first output terminal of RC oscillating unit passes through divider resistance R5 ground connection, be connected to storage capacitor C1 between first end of described divider resistance R3 and second end, first end of described divider resistance R8 is second output terminal of the described high-low level generation unit of the second input termination of RC oscillating unit, second end of described divider resistance R8 is that second output terminal of RC oscillating unit passes through divider resistance R10 ground connection, is connected to storage capacitor C2 between first end of described divider resistance R8 and second end.
4. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 3 is characterized in that described driver element comprises:
Divider resistance R1, divider resistance R4, the 3rd on-off element, the 4th on-off element, the 5th on-off element and the 6th on-off element;
The control end of described the 3rd on-off element is first output terminal that the first input end of driver element connects described high-low level generation unit, second end of described the 3rd on-off element connects power supply by divider resistance R1, first end of described the 3rd on-off element is the described mobile spectral filter of the first output termination of driver element, first end of first termination the 4th on-off element of described the 3rd on-off element, the second end ground connection of described the 4th on-off element, the control end of described the 4th on-off element are first output terminal of the described RC oscillating unit of the second input termination of driver element;
The control end of described the 5th on-off element is second output terminal of the described high-low level generation unit of the 3rd input termination of driver element, second end of described the 5th on-off element connects power supply by divider resistance R4, first end of described the 5th on-off element is the described mobile spectral filter of the second output termination of driver element, first end of first termination the 6th on-off element of described the 5th on-off element, the second end ground connection of described the 6th on-off element, the control end of described the 6th on-off element is second output terminal that the four-input terminal of driver element connects described RC oscillating unit.
5. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 4, it is characterized in that, described the 3rd on-off element is metal-oxide-semiconductor Q1, the grid of described metal-oxide-semiconductor Q1 is the control end of the 3rd on-off element, the drain electrode of described metal-oxide-semiconductor Q1 is first end of the 3rd on-off element, and the source electrode of described metal-oxide-semiconductor Q1 is second end of the 3rd on-off element.
6. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 4, it is characterized in that, described the 4th on-off element is metal-oxide-semiconductor Q3, the grid of described metal-oxide-semiconductor Q3 is the control end of the 4th on-off element, the drain electrode of described metal-oxide-semiconductor Q3 is first end of the 4th on-off element, and the source electrode of described metal-oxide-semiconductor Q3 is second end of the 4th on-off element.
7. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 4, it is characterized in that, described the 5th on-off element is metal-oxide-semiconductor Q4, the grid of described metal-oxide-semiconductor Q4 is the control end of the 5th on-off element, the drain electrode of described metal-oxide-semiconductor Q4 is first end of the 5th on-off element, and the source electrode of described metal-oxide-semiconductor Q4 is second end of the 5th on-off element.
8. Pulse Electric flow pattern mobile spectral filter driving circuit as claimed in claim 4, it is characterized in that, described the 6th on-off element is metal-oxide-semiconductor Q5, the grid of described metal-oxide-semiconductor Q5 is the control end of the 6th on-off element, the drain electrode of described metal-oxide-semiconductor Q5 is first end of the 6th on-off element, and the source electrode of described metal-oxide-semiconductor Q5 is second end of the 6th on-off element.
9. a mobile spectral filter device comprises mobile spectral filter, it is characterized in that, described mobile spectral filter device also comprises each described Pulse Electric flow pattern mobile spectral filter driving circuit as claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202382991U CN201698138U (en) | 2010-06-25 | 2010-06-25 | Impulse current type movable optical filter drive circuit and movable optical filter device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202382991U CN201698138U (en) | 2010-06-25 | 2010-06-25 | Impulse current type movable optical filter drive circuit and movable optical filter device |
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| CN201698138U true CN201698138U (en) | 2011-01-05 |
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| CN2010202382991U Expired - Fee Related CN201698138U (en) | 2010-06-25 | 2010-06-25 | Impulse current type movable optical filter drive circuit and movable optical filter device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888651A (en) * | 2014-04-16 | 2014-06-25 | 中怡(苏州)科技有限公司 | Network camera |
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2010
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103888651A (en) * | 2014-04-16 | 2014-06-25 | 中怡(苏州)科技有限公司 | Network camera |
| US9538094B2 (en) | 2014-04-16 | 2017-01-03 | Sercomm Corporation | IP camera with IR cut burnout and dislocation avoidance mechanism |
| CN103888651B (en) * | 2014-04-16 | 2017-08-25 | 中磊电子（苏州）有限公司 | Network camera |
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