CN201682666U - Driver of adjustable light-emitting diode - Google Patents
Driver of adjustable light-emitting diode Download PDFInfo
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- CN201682666U CN201682666U CN2010201722430U CN201020172243U CN201682666U CN 201682666 U CN201682666 U CN 201682666U CN 2010201722430 U CN2010201722430 U CN 2010201722430U CN 201020172243 U CN201020172243 U CN 201020172243U CN 201682666 U CN201682666 U CN 201682666U
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- emitting diode
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The utility model discloses a driver of an adjustable light-emitting diode, which avoids abnormal conditions such as flashing or extinguishment when lighting brightness of the light-emitting diode is regulated, so as to prevent discomfort of eyes of users and increase the service life of the light-emitting diode; in addition, the traditional alternating-current light modulator can be shared, the light modulator is not needed to be replaced when replacing the LED lamps, so as to save unnecessary loss and achieve the purpose of energy saving really.
Description
Technical field
The utility model relates to a kind of driver, particularly a kind of driver of adjustable LED.
Background technology
At the beginning indicator light, the display panels etc. of being used as of light-emitting diode more; Along with the appearance of white light emitting diode, also be used as illumination.Light-emitting diode is a kind of new-type light source, has long, conventional light source such as the cracky advantage that can't compare with it not of efficient height, life-span.Yet, when this light-emitting diode during, the state that can only realize out and close, and can't carry out the adjustment of brightness of illumination as lighting apparatus, use practicality defect of insufficient when highlighting this light-emitting diode as lighting apparatus.
For this reason, general light-emitting diode is electrically connected with a light modulation unit (being the AC system dimmer), by the light modulation unit brightness of illumination of this light-emitting diode is adjusted.Yet, this light modulation unit is only applicable to general bulb, in case be used in this light-emitting diode, this light-emitting diode can not be controlled by existing light modulation unit, the state that can only realize out and close, because there is the extinction current restriction light modulation unit, at minimum working current during less than extinction current, the light modulation unit will turn-off or restart, so situation of (led lighting brightness deepening) when power output diminishes, therefore the unstable situation that flashing light will occur or extinguish, this light-emitting diode flashing light can occur or unusual condition such as extinguish in adjustment process.The appearance of this unusual condition more can reduce the life-span of this light-emitting diode except causing user's eyes discomfort.
Therefore, driver how to develop a kind of adjustable light-emitting diode (being called for short LED) can solve above-mentioned problem, is the novel motivation of this case.
The utility model content
The purpose of this utility model is to provide the driver of a kind of adjustable light-emitting diode (LED), when this light-emitting diode being carried out the brightness of illumination adjustment by this driver is feasible, unusual condition such as avoid taking place flashing light or extinguish uses preventing the uncomfortable of user's eyes and the life-span that increases this light-emitting diode.
In order to reach above-mentioned purpose, the driver of a kind of adjustable light-emitting diode of the present utility model, be suitable for and electrically connect between this light-emitting diode and the AC power, this light-emitting diode is electrically connected with a transformation driver element, AC power is electrically connected with a light modulation unit and a transformation rectification unit, driver includes: a detecting unit, it electrically connects the transformation rectification unit, whether this AC power passes through the adjustment of this light modulation unit and whether the operating current of this light modulation unit is minimum working current in order to detect, when this AC power is passed through the adjustment of this light modulation unit, then export a drive signal, when the operating current of this light modulation unit is minimum working current, then export an enabling signal, otherwise then export a shutdown signal; One regulon, it electrically connects this detecting unit, when receiving this drive signal, this regulon after computing, exports a dim signal, output one start-up control signal after this regulon receives this enabling signal, enabling signal was closed in output one after this regulon received this shutdown signal; One pulse-width modulation signal modulating unit, it electrically connects this regulon, and this pulse-width modulation signal modulating unit carries out hybrid modulation together with this pulse-width modulation signal according to certain ratio after receiving this dim signal, and exports an identification signal; One pulse-width modulation control unit, it electrically connects between this pulse-width modulation signal modulating unit and this transformation driver element, after this pulse-width modulation control unit receives this identification signal, in order to limit the power output size of this transformation driver element; One AC load unit, it electrically connects this regulon, when this AC load unit receives this start-up control signal, then provides an electric current to this light modulation unit, when this AC load unit receives this closing control signal, then stop to provide electric current to this light modulation unit.
Preferable, when this AC power during through the adjustment of this light modulation unit, this light modulation unit is then exported a conduction phase angle and is mended and postpone signal and give this detecting unit, and this detecting unit then calculates corresponding conduction phase angle and mends and postpone and convert to this drive signal.
Preferable, output one mutually should dim signal after calculating the size of mending the cut parallactic angle when this regulon receives this drive signal.
Preferable, when this detecting unit does not detect the adjustment of this this light modulation unit of AC power process, then export an inhibit signal and give this regulon.
Activation configuration of the present utility model, electric connection by driver can be adjusted the brightness of illumination of light-emitting diode, unusual condition such as avoided that more flashing light takes place or extinguish reaches the purpose that prevents that user's eyes are uncomfortable and increase this lifetime of LED.In addition, driver of the present utility model can be shared traditional AC system dimmer, when changing light-emitting diode (LED) light fixture, need not change this dimmer, saves unnecessary loss, reaches real energy-conservation.
Description of drawings
Fig. 1 is a schematic block diagram of the present utility model;
Fig. 2 is a circuit connection diagram of the present utility model.
[primary clustering symbol description]
Light-emitting diode 11 AC power 12
Pulse-width modulation (PWM) control unit 50 AC load unit 60
Fuse 71 EMI filter circuits 72
Embodiment
Referring to Fig. 1 and Fig. 2, the driver of a kind of adjustable light-emitting diode (LED) that an embodiment of the present utility model is provided, be suitable for and electrically connect between this light-emitting diode 11 and the AC power 12, light-emitting diode 11 is electrically connected with a transformation driver element 13, AC power 12 is electrically connected with a light modulation unit 14 and a transformation rectification unit 15, driver mainly is made up of a detecting unit 20, a regulon 30, a pulse-width modulation (PWM) signal modulating unit 40, a pulse-width modulation (PWM) control unit 50 and an AC load unit 60, wherein:
Detecting unit 20 is an interchange AC phase angle detection module, it electrically connects this transformation rectification unit 15, whether AC power 12 passes through the adjustment of light modulation unit 14 and whether the operating current of light modulation unit 14 is minimum working current in order to detect, when detecting unit 20 detects the adjustment of AC power 12 process light modulation unit 14, then export a drive signal, otherwise then export an inhibit signal, when wherein detecting unit 20 detects the adjustment of AC power 12 process light modulation unit 14, light modulation unit 14 is that output one conduction phase angle is mended the postponement signal to detecting unit 20, and detecting unit 20 calculates corresponding conduction phase angle benefit again and postpones and convert to drive signal; When the operating current that detects light modulation unit 14 when detecting unit 20 is minimum working current, then exports an enabling signal, otherwise then export a shutdown signal.
Pulse-width modulation (PWM) signal modulating unit 40, it electrically connects regulon 30, pulse-width modulation (PWM) signal modulating unit 40 carries out hybrid modulation together with the pulse-width modulation signal according to certain ratio after receiving the dim signal of regulon 30, and exports an identification signal.
Pulse-width modulation (PWM) control unit 50, between its electric connection and pulse-width modulation (PWM) signal modulating unit 40 and the transformation driver element 13, after pulse-width modulation (PWM) control unit 50 receives the identification signal of this pulse-width modulation (PWM) signal modulating unit 40, in order to limit the power output size of this transformation driver element 13, use the brightness of illumination of adjusting this light-emitting diode 11.
This AC load unit 60, it electrically connects this regulon 30, when this AC load unit 60 receives the start-up control signal of this regulon 30, then provides an electric current to this light modulation unit 14, to keep this light modulation unit 14 operate as normal; When this AC load unit 60 receives the closing control signal of this regulon 30, then stop to provide electric current to this light modulation unit 14.
The above is each main composition unit and composition explanation thereof in the specific embodiment of the present utility model.
As for this new embodiment make flowing mode and effect is described as follows:
Import by the L among Fig. 2, N two ends when alternating current, be rectified into the direct current of high pressure through fuse 71, light modulation unit 14, EMI filter circuit 72 and transformation rectification unit 15.Be incorporated into the adjusting whether interchange that detecting unit 20 detects input passes through light modulation unit 14 by resistance 73,74, if not then send inhibit signal and do not carry out any action to regulon 30.
When detecting unit 20 detects the user carries out light modulation to light modulation unit 14 action, light modulation unit 14 output, one conduction phase angle is mended and is postponed signal to detecting unit 20,20 of detecting units calculate corresponding conduction phase angle and mend postponement and convert a drive signal to, simultaneously drive signal is reached regulon 30, it is that corresponding dim signal size sends to pulse-width modulation (PWM) signal modulating unit 40 that 30 of regulons calculate the size conversion of mending the cut parallactic angle, pulse-width modulation (PWM) signal modulating unit 40 will carry out hybrid modulation together with this pulse-width modulation signal according to certain ratio behind the dim signal, and export an identification signal to pulse-width modulation (PWM) control unit 50,50 power output sizes that limited transformation driver element 13 of pulse-width modulation (PWM) control unit, and because light-emitting diode 11 is a kind of fixing voltage when using, when power output changes, voltage is constant, electric current just must reduce, reducing of electric current, the luminosity of light-emitting diode 11 is proportional with the size variation of electric current, is therefore adjusted the brightness of illumination of light-emitting diode 11.
In addition, when light modulation unit 14 in the process of adjusting, AC load unit 60 receives the start-up control signal of regulon 30, then provides an electric current to light modulation unit 14, to keep light modulation unit 14 operate as normal, light-emitting diode 11 just can be worked when deepening normally.
Be with, by the electric connection of driver except can adjusting to the brightness of illumination of this light-emitting diode 11, unusual condition such as avoided that more flashing light takes place or extinguish is used and is reached the purpose that preventing that user's eyes are uncomfortable and increase by 11 life-spans of this light-emitting diode.
In addition, this novel driver can be shared traditional AC system dimmer, when changing light-emitting diode (LED) light fixture, need not change this dimmer, saves unnecessary loss, reaches real energy-conservation.
Claims (4)
1. the driver of an adjustable light-emitting diode, between the electrical connection of described driver and light-emitting diode and the AC power, described light-emitting diode is electrically connected with a transformation driver element, described AC power is electrically connected with a light modulation unit and a transformation rectification unit, it is characterized in that described driver includes:
Whether whether one be the detecting unit of minimum working current through the adjustment of described light modulation unit and the operating current of described light modulation unit in order to detect described AC power, it is electrically connected to described transformation rectification unit, when described detecting unit detects the adjustment of the described light modulation of described AC power process unit, then export a drive signal, when the operating current that detects described light modulation unit when described detecting unit is minimum working current, then export an enabling signal, otherwise then export a shutdown signal;
One regulon, it is electrically connected to described detecting unit, when receiving described drive signal, described regulon after computing, exports a dim signal, output one start-up control signal after described regulon receives described enabling signal, enabling signal is closed in output one after described regulon receives described shutdown signal;
One pulse-width modulation signal modulating unit, it is electrically connected to described regulon, and described pulse-width modulation signal modulating unit carries out hybrid modulation together with described pulse-width modulation signal according to certain ratio after receiving described dim signal, then exports an identification signal;
One pulse-width modulation control unit, it is electrically connected between described pulse-width modulation signal modulating unit and the described transformation driver element, after described pulse-width modulation control unit receives described identification signal, in order to limit the power output size of described transformation driver element;
One AC load unit, it electrically connects described regulon, when described AC load unit receives described start-up control signal, then provides an electric current to described light modulation unit; When described AC load unit receives described closing control signal, then stop to provide electric current to described light modulation unit.
2. the driver of adjustable light-emitting diode as claimed in claim 1, it is characterized in that: when described AC power is passed through the adjustment of described light modulation unit, described light modulation unit is then exported a conduction phase angle and is mended the postponement signal to described detecting unit, and described detecting unit then calculates corresponding conduction phase angle and mends postponement and convert described drive signal to.
3. the driver of adjustable light-emitting diode as claimed in claim 1 is characterized in that: when described regulon receives described drive signal output one corresponding dim signal after calculating the size of mending the cut parallactic angle.
4. the driver of adjustable light-emitting diode as claimed in claim 1 is characterized in that: when described detecting unit does not detect the adjustment of the described light modulation of described AC power process unit, then export an inhibit signal and give described regulon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201722430U CN201682666U (en) | 2010-04-28 | 2010-04-28 | Driver of adjustable light-emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201722430U CN201682666U (en) | 2010-04-28 | 2010-04-28 | Driver of adjustable light-emitting diode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201682666U true CN201682666U (en) | 2010-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201722430U Expired - Fee Related CN201682666U (en) | 2010-04-28 | 2010-04-28 | Driver of adjustable light-emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201682666U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612194A (en) * | 2011-01-19 | 2012-07-25 | 群燿科技股份有限公司 | Dimming circuit, control method, micro controller and phase angle detection method for micro controller |
| CN102932994A (en) * | 2012-10-31 | 2013-02-13 | 那须野邦夫 | Illuminator brightness-regulating system and method |
| CN104349544A (en) * | 2013-07-23 | 2015-02-11 | 松下电器产业株式会社 | LED driving apparatus and illuminating device |
-
2010
- 2010-04-28 CN CN2010201722430U patent/CN201682666U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102612194A (en) * | 2011-01-19 | 2012-07-25 | 群燿科技股份有限公司 | Dimming circuit, control method, micro controller and phase angle detection method for micro controller |
| CN102612194B (en) * | 2011-01-19 | 2014-08-27 | 群燿科技股份有限公司 | Dimming circuit, control method, micro controller and phase angle detection method for micro controller |
| CN102932994A (en) * | 2012-10-31 | 2013-02-13 | 那须野邦夫 | Illuminator brightness-regulating system and method |
| CN102932994B (en) * | 2012-10-31 | 2015-08-05 | 那须野邦夫 | Luminaire light adjusting system and method thereof |
| CN104349544A (en) * | 2013-07-23 | 2015-02-11 | 松下电器产业株式会社 | LED driving apparatus and illuminating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20140428 |