CN202738229U - MR 16 power supply adaptive to all halogen lamp transformers - Google Patents
MR 16 power supply adaptive to all halogen lamp transformers Download PDFInfo
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- CN202738229U CN202738229U CN2012203480702U CN201220348070U CN202738229U CN 202738229 U CN202738229 U CN 202738229U CN 2012203480702 U CN2012203480702 U CN 2012203480702U CN 201220348070 U CN201220348070 U CN 201220348070U CN 202738229 U CN202738229 U CN 202738229U
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- power supply
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- halogen lamp
- input impedance
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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
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Abstract
The utility model discloses an MR 16 power supply adaptive to all halogen lamp transformers. The MR 16 power supply adaptive to all the halogen lamp transformers comprises an input impedance characteristic correction module, a rectifier filter module and a constant current control module, wherein the input impedance characteristic correction module, the rectifier filter module and the constant current control module are connected in order, the input impedance characteristic correction module is used for correcting input impedance characteristics, the rectifier filter module is used for converting alternating current commercial power into direct current, carrying out filtering processing of the direct current and outputting the direct current to the constant current control module, and the constant current control module is used for outputting the constant direct current. The MR 16 power supply can adapt to all the halogen lamp transformers, provides an application base for popularization of LED spotlights and facilitates improvement of LED power supply technology.
Description
Technical field
The utility model relates to the LED power technique fields, is specifically related to a kind of MR16 power supply that adapts to all Halogen lamp LED transformers.
Background technology
High speed development along with the LED lighting technology, the LED shot-light of MR16 standard has become the replacement light source of traditional halogenic lamps and lanterns, for the LED shot-light that makes things convenient for the MR16 standard is replaced in all directions, just must make the LED shot-light of MR16 standard be applicable to existing electronic transformer as power supply, and original electronic transformer mates Halogen lamp LED specially, the wattage of Halogen lamp LED generally is 20-60 watts, it is pure resistive load simultaneously, when this two conditions are satisfied in load, electronic transformer just enters normal operating state, and electronic transformer just has stable high frequency 12V and exchanges output.And the power supply wattage of the LED shot-light consumption of MR16 standard is generally about 4-6 watts, and the electrochemical capacitor of larger capacity is arranged in its input power simultaneously, makes it show as capacitive load.Can cause like this electronic transformer can't enter normal operating state: or at all with regard to no-output, or the effective pulsewidth of its output generation is very narrow, amplitude is very high, the energy of output can't guarantee that the power work of LED shot-light of MR16 standard in normal constant current state, shows as LED and ceaselessly glimmers.
The utility model content
The technical problems to be solved in the utility model provides a kind of MR16 power supply that adapts to all Halogen lamp LED transformers, and the MR16 standard power supply that overcomes prior art can not adapt to the defective of Halogen lamp LED transformer.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to be:
The utility model provides a kind of MR16 power supply that adapts to all Halogen lamp LED transformers, comprise input impedance characteristic correction module, rectification filtering module and constant-current control module, this input impedance characteristic correction module, this rectification filtering module and this constant-current control module link to each other successively, this input impedance characteristic correction module is used for proofreading and correct input impedance characteristic, this rectification filtering module is used for converting electric main to direct current and this direct current being carried out filtering process, then this direct current is outputed to this constant-current control module, this constant-current control module is used for exporting constant direct current.
According to embodiment of the present utility model, this input impedance characteristic correction module comprises the input impedance characteristic correcting network that is made of input inductance L 1, input inductance and resistance R 1.
According to embodiment of the present utility model, the position of inductance L 1 and resistance R 1 can exchange.
According to embodiment of the present utility model, this rectification filtering module comprises diode D1, diode D2, diode D3 and diode D4, also comprises capacitor C 1, and diode D1, diode D2, diode D3 and diode D4 consist of rectifier bridge, and capacitor C 1 is used for filtering.
According to embodiment of the present utility model, this constant-current control module comprises main control chip IC1, inductance L 3, current sampling resistor R2, detecting voltage resistance R 3 and resistance R 4.
According to embodiment of the present utility model, this constant-current control module also comprises the rectifier smoothing circuit that is made of diode D5, capacitor C 3.
The beneficial effects of the utility model: the utility model MR16 power supply can be adapted to the Halogen lamp LED transformer, and for the popularization of LED shot-light provides application foundation, the utility model has advanced the progress of LED power technology.
Description of drawings
The utility model comprises following accompanying drawing:
Fig. 1 is the module diagram of the utility model power supply;
Fig. 2 is embodiment circuit diagram of the present utility model.
Embodiment
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings:
As depicted in figs. 1 and 2, the MR16 power supply that the utility model adapts to all Halogen lamp LED transformers comprises the input impedance characteristic correction module, rectification filtering module and constant-current control module, this input impedance characteristic correction module, this rectification filtering module links to each other successively with this constant-current control module, this input impedance characteristic correction module is used for proofreading and correct input impedance characteristic, this rectification filtering module is used for converting electric main to direct current and this direct current being carried out filtering process, then this direct current is outputed to this constant-current control module, this constant-current control module is used for exporting constant direct current.According to embodiment of the present utility model, this input impedance characteristic correction module comprises the input impedance characteristic correcting network that is made of input inductance L 1, input inductance and resistance R 1.The position of inductance L 1 and resistance R 1 can exchange.This rectification filtering module comprises diode D1, diode D2, diode D3 and diode D4, also comprises capacitor C 1, and diode D1, diode D2, diode D3 and diode D4 consist of rectifier bridge, and capacitor C 1 is used for filtering.This constant-current control module comprises main control chip IC1, inductance L 3, current sampling resistor R2, detecting voltage resistance R 3 and resistance R 4.This constant-current control module also comprises the rectifier smoothing circuit that is made of diode D5, capacitor C 3.
Input inductance L 1/L2 and resistance R 1 have consisted of the input impedance characteristic correcting network.In order to improve the input capacitive load characteristic of traditional MR16 power supply, allow it show as more inclined to one side resistive load network, offer the most important condition that will work of electronic transformer, make more wide cut degree of one of its output, more effective pulse, thus the momentary pulse amplitude of input current reduced, after D1/D2/D3/D4 commutated network and input capacitance C1 filtering, produce a higher supply power voltage, greatly improved rectification efficiency.Back circuit plate is the buck constant-current control circuit, when the voltage instantaneous after the rectification is lower than LED string operating voltage, IC1 enters the analysis of IC1 SY8711 internal judgment by the detecting of R3/R4 bleeder circuit by 2 pin, and the resistance R 2 of bipod has determined the output current size; Will make power circuit can enter the mode of operation of boosting, can export a voltage and current that satisfies the LED normal operation.When input voltage was higher than the LED operating voltage, its circuit will enter the step-down mode of operation, also can export the steady operation of one constant current maintenance LED.7 pin of IC1 SY8711 detect pin for the input positive current, and 6 pin are negative current detecting input pin.Resistance R 2 in the middle of the bipod has determined the size of output current, is not subjected to the variation of input voltage size; Thereby the current constant that has kept LED.And then realized that the MR16 shot-light works normally.Even so this circuit also can keep LED under the mode of operation of constant current when the voltage ratio of electronic transformer output was low, LED can not glimmer.
Those skilled in the art do not break away from essence of the present utility model and spirit, can there be the various deformation scheme to realize the utility model, above this only is the better feasible embodiment of the utility model, be not so limit to interest field of the present utility model, the equivalent structure that all utilization the utility model specifications and accompanying drawing content are done changes, and all is contained within the interest field of the present utility model.
Claims (6)
1. MR16 power supply that adapts to all Halogen lamp LED transformers, it is characterized in that: comprise the input impedance characteristic correction module, rectification filtering module and constant-current control module, described input impedance characteristic correction module, described rectification filtering module links to each other successively with described constant-current control module, described input impedance characteristic correction module is used for proofreading and correct input impedance characteristic, described rectification filtering module is used for converting electric main to direct current and described direct current being carried out filtering process, then described direct current is outputed to described constant-current control module, described constant-current control module is used for exporting constant direct current.
2. the MR16 power supply of all Halogen lamp LED transformers of adaptation according to claim 1 is characterized in that: described input impedance characteristic correction module comprises the input impedance characteristic correcting network that is made of input inductance L 1, input inductance and resistance R 1.
3. the MR16 power supply of all Halogen lamp LED transformers of adaptation according to claim 2, it is characterized in that: the position of inductance L 1 and resistance R 1 can exchange.
4. the MR16 power supply of all Halogen lamp LED transformers of adaptation according to claim 1, it is characterized in that: described rectification filtering module comprises diode D1, diode D2, diode D3 and diode D4, also comprise capacitor C 1, diode D1, diode D2, diode D3 and diode D4 consist of rectifier bridge, and capacitor C 1 is used for filtering.
5. the MR16 power supply of all Halogen lamp LED transformers of adaptation according to claim 1, it is characterized in that: described constant-current control module comprises main control chip IC1, inductance L 3, current sampling resistor R2, detecting voltage resistance R 3 and resistance R 4.
6. the MR16 power supply of all Halogen lamp LED transformers of adaptation according to claim 5, it is characterized in that: described constant-current control module also comprises the rectifier smoothing circuit that is made of diode D5, capacitor C 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203480702U CN202738229U (en) | 2012-07-18 | 2012-07-18 | MR 16 power supply adaptive to all halogen lamp transformers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203480702U CN202738229U (en) | 2012-07-18 | 2012-07-18 | MR 16 power supply adaptive to all halogen lamp transformers |
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| Publication Number | Publication Date |
|---|---|
| CN202738229U true CN202738229U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203480702U Expired - Fee Related CN202738229U (en) | 2012-07-18 | 2012-07-18 | MR 16 power supply adaptive to all halogen lamp transformers |
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| CN (1) | CN202738229U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769982A (en) * | 2012-07-18 | 2012-11-07 | 东莞市领冠半导体照明有限公司 | MR16 power supply adapted to all halogen lamp transformers |
-
2012
- 2012-07-18 CN CN2012203480702U patent/CN202738229U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769982A (en) * | 2012-07-18 | 2012-11-07 | 东莞市领冠半导体照明有限公司 | MR16 power supply adapted to all halogen lamp transformers |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130213 Termination date: 20190718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |