CN204206570U - A kind of LED illumination driving comparator - Google Patents
A kind of LED illumination driving comparator Download PDFInfo
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- CN204206570U CN204206570U CN201420719382.9U CN201420719382U CN204206570U CN 204206570 U CN204206570 U CN 204206570U CN 201420719382 U CN201420719382 U CN 201420719382U CN 204206570 U CN204206570 U CN 204206570U
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Abstract
The utility model is to provide a kind of LED illumination driving comparator, comprise 1 electric current to leak, 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors, the utility model is rational in infrastructure, leaked by 1 electric current, the connection combination of 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors achieves voltage compare, in addition because structure is simple, the installation of electronic component becomes easy, and power consumption obviously reduces.
Description
Technical field
The utility model relates to microelectronics technology, particularly relates to a kind of LED illumination driving comparator.
Background technology
LED drive circuit has the index of two aspects, and one is keep constant-current characteristics as far as possible, especially when the variation of ± 15% occurs supply voltage, output current still should be able to be kept to change in the scope of ± 10%; Two is oneself power consumptions that drive circuit should keep lower, and the system effectiveness of LED so just can be made to remain on higher level.
Specific to comparator, especially voltage comparator itself is the structure for holding circuit constant current, so also should solve the problem of the power consumption of circuit own further except improving its comparing function.Comparator of the prior art adopts the combination of resistance and inductance to reach the effect of comparative voltage mostly, there are two deficiencies in such technical scheme, one is the varied Fast Installation being unfavorable for circuit of electronic component, and it is larger that two is resistance, inductance power consumption compares metal-oxide-semiconductor.
Summary of the invention
For the deficiencies in the prior art, the utility model is to provide a kind of kinds of electronic components few and the comparator that circuit power consumption is little.
For achieving the above object, the utility model is achieved by following technical proposals:
A kind of LED illumination driving comparator, comprise 1 electric current and leak, 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors, is characterized by:
The drain electrode of the 0th P type metal-oxide-semiconductor MP0, the grid of the 0th P type metal-oxide-semiconductor MP0, the input of current source I, the grid of the 4th P type metal-oxide-semiconductor MP4 are connected with the grid of a P type metal-oxide-semiconductor MP1; The drain electrode of the one P type metal-oxide-semiconductor MP1, the source electrode of the 2nd P type metal-oxide-semiconductor MP2 are connected with the source electrode of the 3rd P type metal-oxide-semiconductor MP3; Input port VP is connected with the grid of the 3rd P type metal-oxide-semiconductor MP3; Reverse input end mouth VN is connected with the grid of the 2nd P type metal-oxide-semiconductor MP2; The drain electrode of the drain electrode of the 2nd P type metal-oxide-semiconductor MP2, the grid of the 0th N-type metal-oxide-semiconductor MN0, the 0th N-type metal-oxide-semiconductor MN0 is connected with the grid of the first N-type metal-oxide-semiconductor MN1; The drain electrode of the 3rd P type metal-oxide-semiconductor MP3, the drain electrode of the first N-type metal-oxide-semiconductor MN1 are connected with the grid of the second N-type metal-oxide-semiconductor MN2; The drain electrode of the 4th P type metal-oxide-semiconductor MP4, the drain electrode of the second N-type metal-oxide-semiconductor MN2 are connected with output end vo ut;
The source electrode of the source electrode of the 0th P type metal-oxide-semiconductor MP0, the source electrode of a P type metal-oxide-semiconductor MP1, the 4th P type metal-oxide-semiconductor MP4 is connected with power vd D;
The source electrode of the 0th N-type metal-oxide-semiconductor MN0, the source electrode of the first N-type metal-oxide-semiconductor MN1, the source electrode of the second N-type metal-oxide-semiconductor MN2, the outflow end of current source I are connected with ground wire GND.
The beneficial effects of the utility model are: the utility model is rational in infrastructure, leaked by 1 electric current, the connection combination of 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors achieves voltage compare, in addition because structure is simple, the installation of electronic component becomes easy, and power consumption obviously reduces.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
As shown in Figure 1, a kind of LED illumination driving comparator, comprise 1 electric current and leak, 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors, is characterized by:
The drain electrode of the 0th P type metal-oxide-semiconductor MP0, the grid of the 0th P type metal-oxide-semiconductor MP0, the input of current source I, the grid of the 4th P type metal-oxide-semiconductor MP4 are connected with the grid of a P type metal-oxide-semiconductor MP1; The drain electrode of the one P type metal-oxide-semiconductor MP1, the source electrode of the 2nd P type metal-oxide-semiconductor MP2 are connected with the source electrode of the 3rd P type metal-oxide-semiconductor MP3; Input port VP is connected with the grid of the 3rd P type metal-oxide-semiconductor MP3; Reverse input end mouth VN is connected with the grid of the 2nd P type metal-oxide-semiconductor MP2; The drain electrode of the drain electrode of the 2nd P type metal-oxide-semiconductor MP2, the grid of the 0th N-type metal-oxide-semiconductor MN0, the 0th N-type metal-oxide-semiconductor MN0 is connected with the grid of the first N-type metal-oxide-semiconductor MN1; The drain electrode of the 3rd P type metal-oxide-semiconductor MP3, the drain electrode of the first N-type metal-oxide-semiconductor MN1 are connected with the grid of the second N-type metal-oxide-semiconductor MN2; The drain electrode of the 4th P type metal-oxide-semiconductor MP4, the drain electrode of the second N-type metal-oxide-semiconductor MN2 are connected with the output end vo ut of amplifier;
The source electrode of the source electrode of the 0th P type metal-oxide-semiconductor MP0, the source electrode of a P type metal-oxide-semiconductor MP1, the 4th P type metal-oxide-semiconductor MP4 is connected with power vd D;
The source electrode of the 0th N-type metal-oxide-semiconductor MN0, the source electrode of the first N-type metal-oxide-semiconductor MN1, the source electrode of the second N-type metal-oxide-semiconductor MN2, the outflow end of current source I are connected with ground GND.
What describe in above-described embodiment and specification just illustrates principle of the present utility model and most preferred embodiment; 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.
Claims (1)
1. a LED illumination driving comparator, comprise 1 electric current and leak, 5 P type metal-oxide-semiconductors and 3 N-type metal-oxide-semiconductors, is characterized by:
The drain electrode of the 0th P type metal-oxide-semiconductor (MP0), the grid of the 0th P type metal-oxide-semiconductor (MP0), the input of current source (I), the grid of the 4th P type metal-oxide-semiconductor (MP4) are connected with the grid of a P type metal-oxide-semiconductor (MP1); The drain electrode of the one P type metal-oxide-semiconductor (MP1), the source electrode of the 2nd P type metal-oxide-semiconductor (MP2) are connected with the source electrode of the 3rd P type metal-oxide-semiconductor (MP3); Input port (VP) is connected with the grid of the 3rd P type metal-oxide-semiconductor (MP3); Reverse input end mouth (VN) is connected with the grid of the 2nd P type metal-oxide-semiconductor (MP2); The drain electrode of the drain electrode of the 2nd P type metal-oxide-semiconductor (MP2), the grid of the 0th N-type metal-oxide-semiconductor (MN0), the 0th N-type metal-oxide-semiconductor (MN0) is connected with the grid of the first N-type metal-oxide-semiconductor (MN1); The drain electrode of the 3rd P type metal-oxide-semiconductor (MP3), the drain electrode of the first N-type metal-oxide-semiconductor (MN1) are connected with the grid of the second N-type metal-oxide-semiconductor (MN2); The drain electrode of the 4th P type metal-oxide-semiconductor (MP4), the drain electrode of the second N-type metal-oxide-semiconductor (MN2) are connected with output (Vout);
The source electrode of the source electrode of the 0th P type metal-oxide-semiconductor (MP0), the source electrode of a P type metal-oxide-semiconductor (MP1), the 4th P type metal-oxide-semiconductor (MP4) is connected with power supply (VDD);
The source electrode of the 0th N-type metal-oxide-semiconductor (MN0), the source electrode of the first N-type metal-oxide-semiconductor (MN1), the source electrode of the second N-type metal-oxide-semiconductor (MN2), the outflow end of current source (I) are connected with ground wire (GND).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719382.9U CN204206570U (en) | 2014-11-27 | 2014-11-27 | A kind of LED illumination driving comparator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420719382.9U CN204206570U (en) | 2014-11-27 | 2014-11-27 | A kind of LED illumination driving comparator |
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| CN204206570U true CN204206570U (en) | 2015-03-11 |
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| CN201420719382.9U Active CN204206570U (en) | 2014-11-27 | 2014-11-27 | A kind of LED illumination driving comparator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364992A (en) * | 2018-04-10 | 2019-10-22 | 杰力科技股份有限公司 | Voltage conversion circuit and its control circuit |
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2014
- 2014-11-27 CN CN201420719382.9U patent/CN204206570U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110364992A (en) * | 2018-04-10 | 2019-10-22 | 杰力科技股份有限公司 | Voltage conversion circuit and its control circuit |
| CN110364992B (en) * | 2018-04-10 | 2021-07-06 | 杰力科技股份有限公司 | Voltage conversion circuit and control circuit thereof |
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Address after: 510663 C2, building 182, science Road, Science Town, Guangzhou hi tech Industrial Development Zone, Guangdong 1003, China Patentee after: GUANGZHOU REACH MICRO-ELECTRONICS TECHNOLOGY Co.,Ltd. Address before: No. 3 international business incubator G 510663 area in Guangdong city of Guangzhou province Luogang District Science City Moon road 209 Patentee before: GUANGZHOU REACH MICRO-ELECTRONICS TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |