CN205378301U - LED dimmer circuit and contain its LED lamp - Google Patents
LED dimmer circuit and contain its LED lamp Download PDFInfo
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- CN205378301U CN205378301U CN201620161572.2U CN201620161572U CN205378301U CN 205378301 U CN205378301 U CN 205378301U CN 201620161572 U CN201620161572 U CN 201620161572U CN 205378301 U CN205378301 U CN 205378301U
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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
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model relates to a luminous control technique, purpose are in order to solve among the prior art LED dimming control technique poor problem of performance of adjusting luminance. The utility model provides a LED dimmer circuit, this circuit include that rectification filter network circuit, pi type EMC filter network circuit, protection detect control circuit, export the constant current filtering control circuit and the control circuit that adjusts luminance, rectification filter circuit connects alternating voltage source and pi type EMC filter circuit respectively, the pi type EMC filter circuit be connected with light modulation control circuit, light modulation control circuit and protection detection circuitry and output constant current filtering control circuit are connected. The utility model is suitable for a LED control field that gives out light, give off light.
Description
Technical field
This utility model relates to light emitting control technology, particularly to a kind of LED light adjusting circuit.
Background technology
The principle of luminosity of LED is different with traditional lighting, it is luminous by P-N junction, LED light source with power, because its chip adopted is different, current/voltage parameter is then different, therefore its internal wiring structure and circuit distribution are also different, result in the light source of each production firm and exchanges the requirement of optical drive and be also not quite similar, therefore controlling system and do not mate the common fault also become in industry with light source electrical equipment, control system also be it is also proposed higher challenge by the diversification of LED simultaneously.If control system and luminaire do not match, it is possible to can cause lights or flicker, and it is likely to the drive circuit to LED and light source causes damage.Market has five kinds of LED illumination device control modes: 1. forward position cut (FPC), controllable silicon light modulation；2. tailing edge cut (RPC) metal-oxide-semiconductor dims；3.1-10V dims；4.DALI (digital addressable lighting interface)；5.DMX512 (or DMX) dims；
FPC dimming behavior is poor, typically results in dimming scope and reduces, and can cause that minimum requirements load is above single or a small amount of LED illumination lamp rated power.Because the attribute of controllable silicon half control switch, the only function of firing current, and electric current can not be complete switched off, minimum weak current is still had to pass through even if being adjusted to, and the characteristic of the micro-galvanoluminescence of LED, making to deposit LED after shut-off in a large number with controllable silicon light modulation still has the phenomenon of Weak-luminescence to exist, and becomes this at present and exempts from the difficult problem that wiring LED dimming mode is promoted.
Tailing edge cut controls dimmer mode, adopts field-effect transistor (FET) or insulated gate bipolar transistor (IGBT) equipment to make.Tailing edge phase-cut dimmer generally uses MOSFET as switching device, so also referred to as MOSFET dimmer, being commonly called as " metal-oxide-semiconductor ".MOSFET controls switch entirely, both can control out, it is also possible to controls to close, therefore is absent from the phenomenon that controllable silicon dimmer can not complete switch off.It is that one exempts from wiring LED dimming mode.
1-10V dims the control signal of low-voltage needs one group of circuit of extra increase, and the requirement of construction is greatly improved by this, is therefore unfavorable for selling market, traditional channel.
DALI light modulation needs holding wire to arrange, DALI light modulation drives standby at any time in order to ensure single-chip microcomputer, need nonetheless remain for standby power consumption when turning off the light.And need a system service platform, it is thus possible to practical for central system engineering project, too high for general family then cost, system is too complicated.
Main disadvantage is that of DMX controller needs special wiring topology and type and it needs to certain programming, in order to arrange basic colors and scene, and this is relatively big to the cost of later maintenance, is not suitable for selling market, traditional channel.
Utility model content
The purpose of this utility model is to solve above-mentioned existing dimming control technique Problems existing.
For reaching above-mentioned purpose; this utility model provides a kind of LED light adjusting circuit; including rectifying and wave-filtering lattice network, π type EMC filtering netwok, protection detection control circuit, output constant current filter control circuit and adjusting control circuit; described current rectifying and wave filtering circuit connects alternating-current voltage source and π type EMC filter circuit respectively; described π type EMC filter circuit is connected with adjusting control circuit, and described adjusting control circuit is connected with protection testing circuit and output constant current filter control circuit.
Specifically, described current rectifying and wave filtering circuit includes surge suppressor, full bridge rectifier and high-voltage filtering capacitor, described surge suppressor is connected across the phase line two ends of alternating-current voltage source and is connected with the input of full bridge rectifier, and high-voltage filtering capacitor is connected with the outfan of full bridge rectifier.
Specifically; described protection testing circuit comprises the first inductance and the first electric capacity, and one end of described first inductance is connected with described high-voltage filtering capacitor, and one end of the other end and the first electric capacity connects; the other end ground connection of the first electric capacity, the other end ground connection of described high-voltage filtering capacitor.
Specifically, described protection detection control circuit includes the second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance and the 5th resistance, described first resistance one end connects inductance and the node of the first electric capacity connection, one end of the other end and the second resistance connects, the other end of the second resistance and one end of the second electric capacity connect, the other end ground connection of the second electric capacity, one end ground connection of described second electric capacity, the other end is connected with dimming controlling module circuit, one end ground connection of described 3rd resistance, the other end is connected with adjusting control circuit, the node that described second resistance and the second electric capacity connect is connected with adjusting control circuit, one end ground connection after described 4th resistance and the 5th resistor coupled in parallel, the other end is connected with described adjusting control circuit.
Specifically, described output constant current filter control circuit includes diode, the 6th resistance, the 3rd electric capacity and the second inductance, described 6th resistance and the 3rd Capacitance parallel connection connect, the node one end connected is connected with the negative pole of diode, another node connected and one end of the second inductance connect, and the other end of the second inductance is connected with adjusting control circuit after being connected with the positive pole of diode.
On the basis of above-mentioned adjusting control circuit, the present invention also provides for a kind of LED, including lamp holder, shell, LED drive device, radiator, conducting strip, LED luminescence component and diffuser, described LED luminescence component is provided with lamp holder described in leaf contact and carries out clamping with shell by screw thread, described LED drive device is arranged in the enclosure, described diffuser is connected with shell and is formed with internal chamber, described conducting strip and LED luminescence component are arranged in described chamber, described LED luminescence component is riveted on a heat sink and by assembly upper reed plate formula catalyst and LED drive device outfan contact pin clamping, described conducting strip is arranged on a heat sink, it is characterized in that, described LED drive device includes LED light adjusting circuit as above.
Specifically, described LED luminescence component is provided with reed-type socket as electrical input terminal, between described LED drive device and LED luminescence component, carries out clamping by contact pin and reed-type socket.
Preferably, described reed-type socket is Special-shaped structural metal reed-type socket.
Preferably, described reed-type socket is medal spring chip socket.
The beneficial effects of the utility model are: lower cost ground realizes can the LED total solution of three-stage dimming and switch, dim without independent wiring, any external dimmer need not be increased and control device, input voltage source only turn off and turns on the realization brightness to LED and is adjusted and switchs.And effectively meet domestic relevant laws and regulations standard-required.
Accompanying drawing explanation
Fig. 1 is the theory diagram of LED light adjusting circuit of the present utility model；
Fig. 2 is the structure disassembly diagram of LED of the present utility model；
Figure is labeled as: lamp holder 1, shell 2, heat conduction fixed bonding glue 3, LED drive device 4, radiator 5, conducting strip 6, LED luminescence component 7 and diffuser 8.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, it is noted that embodiment is only used to reader and is more fully understood that technology of the present utility model design, not in order to limit protection domain of the present utility model.
This utility model is for the problem of LED dimming control technique dimming behavior difference in prior art; a kind of, LED light adjusting circuit is provided; as shown in Figure 1; this circuit includes rectifying and wave-filtering lattice network, π type EMC filtering netwok, protection detection control circuit, output constant current filter control circuit and adjusting control circuit; described current rectifying and wave filtering circuit connects alternating-current voltage source and π type EMC filter circuit respectively; described π type EMC filter circuit is connected with adjusting control circuit, and described adjusting control circuit is connected with protection testing circuit and output constant current filter control circuit.
In this utility model, current rectifying and wave filtering circuit includes surge suppressor, full bridge rectifier and high-voltage filtering capacitor, described surge suppressor is connected across the phase line two ends of alternating-current voltage source and is connected with the input of full bridge rectifier, and high-voltage filtering capacitor is connected with the outfan of full bridge rectifier.
In this utility model; protection testing circuit comprises the first inductance and the first electric capacity, and one end of described first inductance is connected with described high-voltage filtering capacitor, and one end of the other end and the first electric capacity connects; the other end ground connection of the first electric capacity, the other end ground connection of described high-voltage filtering capacitor.
In this utility model, protection detection control circuit includes the second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance and the 5th resistance, described first resistance one end connects inductance and the node of the first electric capacity connection, one end of the other end and the second resistance connects, the other end of the second resistance and one end of the second electric capacity connect, the other end ground connection of the second electric capacity, one end ground connection of described second electric capacity, the other end is connected with dimming controlling module circuit, one end ground connection of described 3rd resistance, the other end is connected with adjusting control circuit, the node that described second resistance and the second electric capacity connect is connected with adjusting control circuit, one end ground connection after described 4th resistance and the 5th resistor coupled in parallel, the other end is connected with described adjusting control circuit.
In this utility model, output constant current filter control circuit includes diode, the 6th resistance, the 3rd electric capacity and the second inductance, described 6th resistance and the 3rd Capacitance parallel connection connect, the node one end connected is connected with the negative pole of diode, another node connected and one end of the second inductance connect, and the other end of the second inductance is connected with adjusting control circuit after being connected with the positive pole of diode.
LED brightness adjustment control of the present utility model, its operation principle is as follows: AC-input voltage is through rectifying and wave-filtering network, rectification is this voltage required voltage, then through π type EMC filter circuit, the interference signal that external interference signals and the work of this circuit produce is effectively filtered out, it is connected with adjusting control circuit module input and outfan respectively again, the voltage x current of adjusting control circuit module output is not sufficiently stable and through output constant current filter circuit, its output is processed, when switching signal (i.e. low and high level) occurs, when adjusting control circuit input detects a low level, the crest voltage that the current/voltage detected and chip internal MCU dimming sequence set is compared, to judge currently should export 100% electric current, or 50% electric current or 10% electric current or 0V voltage.
Above-mentioned adjusting control circuit is applied in illumination, this utility model further provides for a kind of LED, as shown in Figure 2, including lamp holder 1, shell 2, LED drive device 4, radiator 5, conducting strip 6, LED luminescence component 7 and diffuser 8, described lamp holder 1 carries out clamping with shell 2 by screw thread, described LED drive device 4 is arranged in shell 2, described diffuser 8 is connected with shell 2 and is formed with internal chamber, described conducting strip 6 and LED luminescence component 7 are arranged in described chamber, described LED luminescence component 7 is first riveted on and is connected with LED drive device 4 contact pin again through self special construction reed contact equipped with on the radiator of conducting strip, described conducting strip 6 is arranged on radiator 5, described LED drive device 4 includes above-mentioned LED light adjusting circuit.
LED of the present utility model, described LED luminescence component 7 is provided with special construction leaf contact, carries out clamping by contact pin and special construction leaf contact between described LED drive device 4 and LED luminescence component 7.A kind of preferred scheme is that described contact pin is metal ferrule, and described special construction reed-type socket is medal spring chip socket.
Claims (7)
1.LED light adjusting circuit; it is characterized in that; including rectifying and wave-filtering lattice network, π type EMC filtering netwok, protection detection control circuit, output constant current filter control circuit and adjusting control circuit; described current rectifying and wave filtering circuit connects alternating-current voltage source and π type EMC filter circuit respectively; described π type EMC filter circuit is connected with adjusting control circuit, and described adjusting control circuit is connected with protection testing circuit and output constant current filter control circuit.
2. LED light adjusting circuit as claimed in claim 1, it is characterized in that, described current rectifying and wave filtering circuit includes surge suppressor, full bridge rectifier and high-voltage filtering capacitor, described surge suppressor is connected across the phase line two ends of alternating-current voltage source and is connected with the input of full bridge rectifier, and high-voltage filtering capacitor is connected with the outfan of full bridge rectifier.
3. LED light adjusting circuit as claimed in claim 2; it is characterized in that; described protection testing circuit comprises the first inductance and the first electric capacity; one end of described first inductance is connected with described high-voltage filtering capacitor; one end of the other end and the first electric capacity connects; the other end ground connection of the first electric capacity, the other end ground connection of described high-voltage filtering capacitor.
4. LED light adjusting circuit as claimed in claim 3, it is characterized in that, described protection detection control circuit includes the second electric capacity, first resistance, second resistance, 3rd resistance, 4th resistance and the 5th resistance, described first resistance one end connects inductance and the node of the first electric capacity connection, one end of the other end and the second resistance connects, the other end of the second resistance and one end of the second electric capacity connect, the other end ground connection of the second electric capacity, one end ground connection of described second electric capacity, the other end is connected with dimming controlling module circuit, one end ground connection of described 3rd resistance, the other end is connected with adjusting control circuit, the node that described second resistance and the second electric capacity connect is connected with adjusting control circuit, one end ground connection after described 4th resistance and the 5th resistor coupled in parallel, the other end is connected with described adjusting control circuit.
5. LED light adjusting circuit as claimed in claim 4, it is characterized in that, described output constant current filter control circuit includes diode, the 6th resistance, the 3rd electric capacity and the second inductance, described 6th resistance and the 3rd Capacitance parallel connection connect, the node one end connected is connected with the negative pole of diode, another node connected and one end of the second inductance connect, and the other end of the second inductance is connected with adjusting control circuit after being connected with the positive pole of diode.
6.LED lamp, it is characterized in that, including lamp holder, shell, LED drive device, radiator, conducting strip, LED luminescence component and diffuser, described LED luminescence component is provided with lamp holder described in leaf contact and carries out clamping with shell by screw thread, described LED drive device is arranged in the enclosure, described diffuser is connected with shell and is formed with internal chamber, described conducting strip and LED luminescence component are arranged in described chamber, described LED luminescence component is riveted on a heat sink and by assembly upper reed plate formula catalyst and LED drive device outfan contact pin clamping, described conducting strip is arranged on a heat sink, described LED drive device includes the LED light adjusting circuit as described in claim 1 to 5 any one.
7. LED as claimed in claim 6, it is characterised in that described contact pin is metal ferrule, and described reed-type socket is medal spring chip socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161572.2U CN205378301U (en) | 2016-03-02 | 2016-03-02 | LED dimmer circuit and contain its LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620161572.2U CN205378301U (en) | 2016-03-02 | 2016-03-02 | LED dimmer circuit and contain its LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205378301U true CN205378301U (en) | 2016-07-06 |
Family
ID=56265575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620161572.2U Active CN205378301U (en) | 2016-03-02 | 2016-03-02 | LED dimmer circuit and contain its LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205378301U (en) |
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2016
- 2016-03-02 CN CN201620161572.2U patent/CN205378301U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190726 Address after: 621000 Exit Processing Zone 201 Factory Building, 261 Feiyun Avenue East Section, Mianyang High-tech Zone, Sichuan Province Patentee after: Sichuan Hongrui Electrical Co., Ltd. Address before: County 622651 Sichuan city of Mianyang Province Hua Gai Zhen Luo Sheng Jie Sichuan Changhong Electronics Co., Ltd. Patentee before: SICHUAN CHANGHONG ELECTRONIC PARTS CO., LTD. |