CN2859990Y - Luminance adjustable flashlight - Google Patents
Luminance adjustable flashlight Download PDFInfo
- Publication number
- CN2859990Y CN2859990Y CN 200520144488 CN200520144488U CN2859990Y CN 2859990 Y CN2859990 Y CN 2859990Y CN 200520144488 CN200520144488 CN 200520144488 CN 200520144488 U CN200520144488 U CN 200520144488U CN 2859990 Y CN2859990 Y CN 2859990Y
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- irf9z24
- touch
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- Expired - Fee Related
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Abstract
The utility model is a flashlight, particularly a luminance adjustable flash, including a single chip micyoco (SCM) IC1, a regulated buck module IC2, a touch switch A, a touch switch B, a FET IRF9Z24, an inductance L and a LED light source, wherein the terminal 1 of the SCM IC1 is linked to the ground through the touch switch A, the terminal 2 of the SCM IC1 is linked to the ground through the touch switch B, and the terminal 8 of the SCM IC1 is linked to the LED light source through the FET IRF9Z24 and the inductance L; the terminal 5 of the regulated buck module IC2 is linked to the terminal 5 of the IC1, the terminal 5 of IC2 is further linked to the terminal 5 of the IC1 through the resistor R, and the terminal 1 of IC2 is linked to the FET IRF9Z24. The utility model provides the dozen or dozens of brightness project to the users, in order to regulate the brightness of flashlight at will.
Description
Technical field
The utility model is a kind of flashlight, particularly a kind of adjustable brightness flashlight.
Background technology
The flashlight of prior art, its light-source brightness is all fixed.Just some is called the flashlight of light modulation at last, just only can provide two to three kinds of fixing brightness, in fact also is to regulate light source in constant mode, so just forms unnecessary loss.
Summary of the invention
The purpose of this utility model is a kind of adjustable brightness flashlight that can regulate brightness arbitrarily and have energy-saving effect of design.
The utility model is realized as follows: the utility model comprises single-chip microcomputer IC1, voltage regulation type step-down module I C2, touch-switch A, touch-switch B, field effect transistor IRF9Z24, inductance L and light source led, 1 pin of single-chip microcomputer IC1 by touch-switch A with link, 2 pin of single-chip microcomputer IC1 by touch-switch B with link, 8 pin of single-chip microcomputer IC1 link by field effect transistor IRF9Z24 and inductance L and light source led, the 1 pin output frequency of IC1 is the square wave drive field effect transistor IRF9Z24 of 200KHZ, reach a switching mode buck functionality, the square-wave waveform signal of the exportable pulse width variability of 2 pin of IC1, when pressing external touch-switch A and touch-switch B, the width of pulsewidth output is also along with variation; 5 pin of voltage regulation type step-down module I C2 and 5 pin of IC1 link, 5 pin of IC2 also link by 5 pin of resistance R and IC1,1 pin and the field effect transistor IRF9Z24 of IC2 link, after the energising, 5 pin of IC1 are with the output pulse width square wave, thereby control IC 2 voltage stabilizings, the switching frequency of the 1 pin output of IC2, and then reach the purpose of controlling light source led brightness.
Good effect of the present utility model is as follows: owing to be provided with two touch-switchs that are used to regulate brightness at power output end, utilize wither batteries output voltage and change the operating current of light source of the form of pulse signal, make the brightness of torch letter do extremely small variation, thereby can do to change arbitrarily in the brightness in the scope interior focusing source of light source power, for the user provides tens to tens kinds brightness scheme, reach the purpose of any adjusting brightness.
Description of drawings
Fig. 1 is the utility model circuit diagram
Concrete enforcement power formula
As shown in Figure 1, the utility model comprises single-chip microcomputer IC1, voltage regulation type step-down module I C2, touch-switch A, touch-switch B, field effect transistor IRF9Z24, inductance L and light source led, 1 pin of single-chip microcomputer IC1 by touch-switch A with link, 2 pin of single-chip microcomputer IC1 by touch-switch B with link, 8 pin of single-chip microcomputer IC1 link by field effect transistor IRF9Z24 and inductance L and light source led, the 1 pin output frequency of IC1 is the square wave drive field effect transistor IRF9Z24 of 200KHZ, reach a switching mode buck functionality, the square-wave waveform signal of the exportable pulse width variability of 2 pin of IC1, when pressing external touch-switch A and touch-switch B, the width of pulsewidth output is also along with variation; 5 pin of voltage regulation type step-down module I C2 and 5 pin of IC1 link, 5 pin of IC2 also link by 5 pin of resistance R and IC1,1 pin and the field effect transistor IRF9Z24 of IC2 link, after the energising, 5 pin of IC1 are with the output pulse width square wave, thereby control IC 2 voltage stabilizings, the switching frequency of the 1 pin output of IC2, and then reach the purpose of controlling light source led brightness.
Claims (1)
1. adjustable brightness flashlight, it is characterized in that: adjustable brightness flashlight described in the utility model, comprise single-chip microcomputer IC1, voltage regulation type step-down module I C2, touch-switch A, touch-switch B, field effect transistor IRF9Z24, inductance L and light source led, 1 pin of single-chip microcomputer IC1 by touch-switch A with link, 2 pin of single-chip microcomputer IC1 by touch-switch B with link, 8 pin of single-chip microcomputer IC1 link by field effect transistor IRF9Z24 and inductance L and light source led; 5 pin of voltage regulation type step-down module I C2 and 5 pin of IC1 link, and 5 pin of IC2 also link by 5 pin of resistance R and IC1, and 1 pin and the field effect transistor IRF9Z24 of IC2 link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144488 CN2859990Y (en) | 2005-12-19 | 2005-12-19 | Luminance adjustable flashlight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520144488 CN2859990Y (en) | 2005-12-19 | 2005-12-19 | Luminance adjustable flashlight |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859990Y true CN2859990Y (en) | 2007-01-17 |
Family
ID=37612844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520144488 Expired - Fee Related CN2859990Y (en) | 2005-12-19 | 2005-12-19 | Luminance adjustable flashlight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859990Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742771B (en) * | 2009-12-22 | 2013-09-11 | 海洋王照明科技股份有限公司 | Portable type lamp, light dimming circuit and light dimming method |
| CN103369763A (en) * | 2012-03-29 | 2013-10-23 | 海洋王照明科技股份有限公司 | LED signal lamp and driving circuit thereof |
-
2005
- 2005-12-19 CN CN 200520144488 patent/CN2859990Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101742771B (en) * | 2009-12-22 | 2013-09-11 | 海洋王照明科技股份有限公司 | Portable type lamp, light dimming circuit and light dimming method |
| CN103369763A (en) * | 2012-03-29 | 2013-10-23 | 海洋王照明科技股份有限公司 | LED signal lamp and driving circuit thereof |
| CN103369763B (en) * | 2012-03-29 | 2016-01-20 | 海洋王照明科技股份有限公司 | A kind of LED signal lamp and drive circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |