CN204291471U - New LED expansion warning indicating circuit - Google Patents
New LED expansion warning indicating circuit Download PDFInfo
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- CN204291471U CN204291471U CN201420733258.8U CN201420733258U CN204291471U CN 204291471 U CN204291471 U CN 204291471U CN 201420733258 U CN201420733258 U CN 201420733258U CN 204291471 U CN204291471 U CN 204291471U
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- led
- drive circuit
- led drive
- circuit
- warning indicating
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Abstract
The utility model proposes a kind of New LED expansion warning indicating circuit, comprise: power-supplying circuit, MCU, LED drive circuit, described power-supplying circuit power output end connects MCU feeder ear and LED drive circuit power input respectively, described LED drive circuit output connects N number of LED alarm lamp, and described N is positive integer.
Description
Technical field
The utility model relates to electronic circuit field, particularly relates to a kind of New LED expansion warning indicating circuit.
Background technology
Along with the high speed development of electronic circuit in automobile instrument, the alarm lamp that vehicle-mounted automobile instrument shows is got more and more, need the display unit of reporting to the police also to be more and more simultaneously, the LED warning indication scheme controlled in orthodox car instrument alarm indication mode can not control all indicator lights simultaneously, be difficult to the requirement meeting user, this just needs those skilled in the art badly and solves corresponding technical problem.
Utility model content
The utility model is intended at least solve the technical problem existed in prior art, especially innovatively proposes a kind of New LED expansion warning indicating circuit.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of New LED expansion warning indicating circuit, and its key is, comprising: power-supplying circuit, MCU, LED drive circuit,
Described power-supplying circuit power output end connects MCU feeder ear and LED drive circuit power input respectively, and described LED drive circuit output connects N number of LED alarm lamp, and described N is positive integer.
The beneficial effect of technique scheme is: connect LED drive circuit by MCU, can expand control N paths of LEDs alarm lamp.
Described New LED expansion warning indicating circuit, preferably, described LED drive circuit is two LED drive circuits in parallel, and the LED drive circuit signal input part after parallel connection connects MCU signal output part, and the Lou output of opening of the LED drive circuit after parallel connection connects N number of LED alarm lamp.
The beneficial effect of technique scheme is: by parallel connection LED drive circuit, makes the parallel biography speed of working signal.
Described New LED expansion warning indicating circuit, preferably, described LED drive circuit is TLC6C5912.
Described New LED expansion warning indicating circuit, preferably, also comprise the 111st resistance, described 111st resistance one end connects the power input of power-supplying circuit, and the described 111st resistance other end connects LED drive circuit power input.
Described New LED expansion warning indicating circuit, preferably, described LED alarm lamp positive pole connects power supply circuits, and described LED alarm lamp negative pole connects LED drive circuit signal output part.
In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:
By connecting LED drive circuit, the light on and off realizing N paths of LEDs control, and control separately, expend the drawback of components and parts under breaching Legacy Status, thus realize MCU unified control LED light on and off by LED drive circuit.
Additional aspect of the present utility model and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present utility model and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is New LED of the present utility model expansion warning indicating circuit schematic diagram;
Fig. 2 is New LED of the present utility model expansion warning indicating circuit model connection diagram.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the utility model, and can not being interpreted as restriction of the present utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, such as, can be mechanical connection or electrical connection, also can be the connection of two element internals, can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
As shown in Figure 1, the utility model provides a kind of New LED expansion warning indicating circuit, and its key is, comprising: power-supplying circuit, MCU, LED drive circuit,
Described power-supplying circuit power output end connects MCU feeder ear and LED drive circuit power input respectively, and described LED drive circuit output connects N number of LED alarm lamp, and described N is positive integer.
Described New LED expansion warning indicating circuit, preferably, described LED drive circuit is two LED drive circuits in parallel, and the LED drive circuit signal input part after parallel connection connects MCU signal output part, and the Lou output of opening of the LED drive circuit after parallel connection connects N number of LED alarm lamp.
As shown in Figure 2, described New LED expansion warning indicating circuit, preferably, described LED drive circuit is TLC6C5912.
Described New LED expansion warning indicating circuit, preferably, also comprise the 111st resistance, described 111st resistance one end connects the power input of power-supplying circuit, and the described 111st resistance other end connects LED drive circuit power input.
Described New LED expansion warning indicating circuit, preferably, described LED alarm lamp positive pole connects power supply circuits, and described LED alarm lamp negative pole connects LED drive circuit signal output part.
The beneficial effects of the utility model are:
By connecting LED drive circuit, the light on and off realizing N paths of LEDs control, and control separately, expend the drawback of components and parts under breaching Legacy Status, thus realize MCU unified control LED light on and off by LED drive circuit.LED drive circuit is TLC6C5912.Solve the phenomenon that may occur flicker at automotive ignition moment LED.
MCU is by a kind of serial shift communication modes control LED drive IC internal logic, the logic level that internal logic circuit sends according to MCU carries out light on and off control to 24 paths of LEDs, realize LED warning instruction, wherein MCU controls the customary means that LED light on and off belong to this area.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present utility model and aim, scope of the present utility model is by claim and equivalents thereof.
Claims (5)
1. a New LED expansion warning indicating circuit, is characterized in that, comprising: power-supplying circuit, MCU, LED drive circuit,
Described power-supplying circuit power output end connects MCU feeder ear and LED drive circuit power input respectively, and described LED drive circuit output connects N number of LED alarm lamp, and described N is positive integer.
2. New LED expansion warning indicating circuit according to claim 1, it is characterized in that, described LED drive circuit is two LED drive circuits in parallel, LED drive circuit signal input part after parallel connection connects MCU signal output part, and the Lou output of opening of the LED drive circuit after parallel connection connects N number of LED alarm lamp.
3. New LED expansion warning indicating circuit according to claim 1 and 2, it is characterized in that, described LED drive circuit is TLC6C5912.
4. New LED expansion warning indicating circuit according to claim 1 and 2, it is characterized in that, also comprise the 111st resistance, described 111st resistance one end connects the power input of power-supplying circuit, and the described 111st resistance other end connects LED drive circuit power input.
5. New LED expansion warning indicating circuit according to claim 1, it is characterized in that, described LED alarm lamp positive pole connects power supply circuits, and described LED alarm lamp negative pole connects LED drive circuit signal output part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733258.8U CN204291471U (en) | 2014-11-28 | 2014-11-28 | New LED expansion warning indicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420733258.8U CN204291471U (en) | 2014-11-28 | 2014-11-28 | New LED expansion warning indicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204291471U true CN204291471U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420733258.8U Expired - Fee Related CN204291471U (en) | 2014-11-28 | 2014-11-28 | New LED expansion warning indicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204291471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979686A (en) * | 2016-07-21 | 2016-09-28 | 合肥联信电源有限公司 | Emergency lighting and evacuation indicating lamp circuit |
-
2014
- 2014-11-28 CN CN201420733258.8U patent/CN204291471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105979686A (en) * | 2016-07-21 | 2016-09-28 | 合肥联信电源有限公司 | Emergency lighting and evacuation indicating lamp circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20171128 |