CN108235496A - A kind of adjustable segmented LED light - Google Patents
A kind of adjustable segmented LED light Download PDFInfo
- Publication number
- CN108235496A CN108235496A CN201611196209.5A CN201611196209A CN108235496A CN 108235496 A CN108235496 A CN 108235496A CN 201611196209 A CN201611196209 A CN 201611196209A CN 108235496 A CN108235496 A CN 108235496A
- Authority
- CN
- China
- Prior art keywords
- circuit
- field effect
- power
- pulse
- connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
-
- 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]
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of adjustable segmented LED light, including：One bulb structure sets in bulb structure and is fixed with light adjusting circuit；The light adjusting circuit includes a rectifier bridge being electrically connected by power switch with city's exchange, a LED light control output circuit being connect with rectifier bridge direct current output；The LED light control output circuit includes：One high frequency transformer being made of primary coil, secondary coil and magnetic core, the impulse generator and a stepwise adjustable light control circuit of a driving primary coil oscillation；Primary coil shines for driving LED pipe and provides power supply, and secondary coil provides DC power supply by rectification circuit for turnable pulse width impulse generator and stepwise adjustable light control circuit；Circuit structure of the present invention is simple, and high frequency transformer winding is few, has not only realized the dimming function of lamps and lanterns, but also without increasing light modulator, fully achieve switch dimming technology, reduce cost, increase the reliability of circuit.
Description
Technical field
The invention belongs to lighting technical field, more particularly to a kind of adjustable segmented LED light.
Background technology
Light modulation product needs to coordinate light modulator currently on the market, and light modulator usually requires relatively large load to drive, and
It is expensive；LED energy-saving lamps generally can not dim simultaneously, so a lot of LED lamps only switch, without dimming function；With
LED lamp is promoted the use of, and in the case where not increasing expenditure, people are with greater need for a kind of easy LED with dimming function
Lamps and lanterns.
Invention content
The purpose of the invention is to realize that LED lamp has dimming function and without using light modulator, one kind of proposition
Adjustable segmented LED light technical solution.
To achieve these goals, the technical scheme is that：
A kind of adjustable segmented LED light, including：The connection of one socket that can be docked with lamp holder, the socket and a closing
One end connection is covered, LED pipe, the end of a transparent lamp shade and the connector sleeve other end are fixedly installed in the port of the connector sleeve other end
Mouth connects and clasps LED pipe, is set in the connector sleeve and is fixed with light adjusting circuit；The light adjusting circuit passes through electricity including one
The rectifier bridge that source switch is electrically connected through socket and lamp holder with city's exchange, the LED light control being connect with rectifier bridge direct current output
Output circuit；Wherein, the LED light control output circuit includes：One height being made of primary coil, secondary coil and magnetic core
Frequency power transformer, the impulse generator and a stepwise adjustable light control circuit of a driving primary coil oscillation；Primary coil is
Driving LED pipe, which shines, provides power supply, and secondary coil is light-operated for turnable pulse width impulse generator and stepwise adjustable by rectification circuit
Circuit processed provides DC power supply；
One end of the primary coil connects rectifier bridge direct current positive output end and as the cathode connecting pin of LED pipe, primary coil
The other end connect the anode of a rectifier diode, the anode connection terminal of the cathode of rectifier diode as LED pipe；
The turnable pulse width impulse generator driving primary coil does energy storage oscillation, and primary coil is released by the rectifier diode
Energy storage driving LED pipe is put to shine；
The turnable pulse width impulse generator includes a fixed rate pulse generator circuit and a N-channel power field effect
Switching tube；The drain electrode of power field effect switching tube connects the other end of the primary coil and the anode of the rectifier diode,
The source electrode of power field effect switching tube connects rectifier bridge direct current negative output terminal by first resistor, and the pulse-generator circuit has
One pulse-width adjustment control terminal that pulse-width adjustment is realized by potential change, the pulse-width adjustment control terminal connect power field effect
The source electrode of switching tube, the grid of the pulse output connection power field effect switching tube of the fixed rate pulse generator circuit,
The pulse-generator circuit switchs the control voltage of tube grid and source electrode by changing power field effect, and then changes power field
The pulsewidth output of effect switch pipe；
The stepwise adjustable light control circuit, which includes one, can carry out the microprocessor of sectional dimming control, a power switch inspection
Slowdown monitoring circuit and variable electric potential circuit, the power switch detection circuit is including there are one photoelectrical coupler, the hairs of photoelectrical coupler
Light pipe connects city's alternating current by the power switch, and the power supply of the DC signal output connection microprocessor of photoelectrical coupler is opened
Off status signal receives input terminal；The variable electric potential circuit includes at least two N-channel field effect transistor switch pipes, is referred to as the
One field effect transistor switch pipe and the second field effect transistor switch pipe, the first field effect transistor switch pipe and the drain electrode point of the second field effect transistor switch pipe
Not Lian Jie second resistance and 3rd resistor one end, connect the power field after the other end parallel connection of second resistance and 3rd resistor
The source electrode of effect switch pipe, the change current potential control terminal of two field effect transistor switch tube grid connection microprocessors.
Further, the segmented LED dimming control circuits further include a startup power supply and provide circuit, the startup
Power supply provides the divider resistance that circuit includes two series connection, and one end connection rectifier bridge direct current of the divider resistance of series connection is just defeated
Outlet, the other end of divider resistance connect the power input of the fixed rate pulse generator circuit, described two series connection
The intermediate concatenation point power supply that secondary coil is connected by a diode of divider resistance an end, the cathode of the diode are provided
The intermediate concatenation point of connection, the power supply of the anode connection secondary coil of diode provide end.
Further, the fixed rate pulse generator circuit is the PWM generator controllers of model FAN103.
Further, there are one energy storage discharge loop, the energy storage discharge loop ensures the electricity for the microprocessor connection
Source switch continues to microprocessor and works normally at least 2 seconds after cutting off the power, the energy storage discharge loop includes electrolysis electricity
Appearance and diode are connected to the feeder ear of microprocessor after the anode connection of the cathode and electrolytic capacitor of diode, diode
The direct current supply output of anode connection secondary coil.
Further, the electrolytic capacitor is at least the electrolytic capacitor of 2200 microfarads.
The connector sleeve is insulating sleeve of electric, covers an insulating protective sleeve again in insulation sleeve, the light adjusting circuit is fixed on
In the insulating protective sleeve, LED pipe is welded and fixed in assist side, and wiring board is fixed on insulation protection and puts on.
The present invention has the following advantages that compared with prior art：Circuit structure of the present invention is simple, has both realized the tune of lamps and lanterns
Light function, and without increasing light modulator, switch dimming technology is fully achieved, high frequency transformer winding is few, reduces cost, increases
The reliability of circuit is added.
The present invention is described in detail with reference to the accompanying drawings and examples.
Description of the drawings
Fig. 1 is light adjusting circuit schematic diagram of the present invention；
Fig. 2 is modulated structure decomposition diagram of the present invention；
Fig. 3 is lamp overall structure sectional view of the present invention；
Fig. 4 is lamp appearance diagram of the present invention.
Specific embodiment
Embodiment:
A kind of adjustable segmented LED light, referring to Fig. 1 to Fig. 4, the LED tunable opticals lamp includes, a lamp that can be docked with lamp holder
Mouth 16, the socket are connect with 17 one end of connector sleeve of a closing, and the connector sleeve is insulating sleeve of electric, for safety, exhausted
An insulating protective sleeve 18 is covered again in edge set, LED pipe 19 is fixedly installed in the port of the connector sleeve other end, and LED pipe welding is solid
It is scheduled on wiring board 20, wiring board is fixed on insulation protection and puts on, and the port of a transparent lamp shade 21 and the connector sleeve other end connects
It connects and clasps LED pipe, set in the insulation sleeve and be fixed with light adjusting circuit；The light adjusting circuit is opened including one by power supply
The rectifier bridge 2 being electrically connected through socket and lamp holder by power switch 1 through socket and lamp holder with city's exchange is closed, one straight with rectifier bridge
The LED light control output circuit of stream output connection；Wherein, the LED light control output circuit includes：One by primary coil 3-
1st, secondary coil 3-2 and magnetic core composition high frequency transformer 3, one driving primary coil oscillation impulse generator and one point
Section dimming control circuit；Primary coil shines for driving LED pipe and provides power supply, and secondary coil is adjustable arteries and veins by rectification circuit
Width pulse generator and stepwise adjustable light control circuit provide DC power supply；Secondary coil passes through a diode in the present embodiment
11 rectifications provide power supply for turnable pulse width impulse generator, while by another 14 rectification of diode through direct current regulation circuit circuit
15 one direct current 5V of output provide power supply for stepwise adjustable light control circuit；
One end of the primary coil connects rectifier bridge direct current positive output end and as the cathode connecting pin of LED pipe, primary coil
The other end connect the anode of a rectifier diode 4, the anode connection terminal of the cathode of rectifier diode as LED pipe pipe；
The turnable pulse width impulse generator driving primary coil does energy storage oscillation, and primary coil is released by the rectifier diode
Energy storage driving LED pipe is put to shine；
The present embodiment is that LED pipe shines and provides power supply with primary coil using the principle that electromagnetic coil energy storage is discharged, not only simply, but also
Save the coil winding of high frequency transformer.
The turnable pulse width impulse generator includes a fixed rate pulse generator circuit 5 and a N-channel power
Field effect transistor switch pipe 6；The drain electrode of power field effect switching tube connects the other end of the primary coil and the rectifier diode
Anode, the source electrode of power field effect switching tube passes through first resistor R1 connection rectifier bridge direct current negative output terminals, the fixed frequency
There are one the pulse-width adjustment control terminal CS that pulse-width adjustment is realized by potential change, the pulse-width adjustments for rate pulse-generator circuit
Control terminal connects the source electrode of power field effect switching tube, the pulse output GATE connections of the fixed rate pulse generator circuit
The grid of power field effect switching tube, the pulse-generator circuit switch tube grid and source electrode by changing power field effect
Voltage is controlled, under conditions of input frequency is constant, and then changes the pulsewidth output of power field effect switching tube, the present embodiment is solid
The fixed frequency for determining the generation of frequency pulse generator circuit is 50kHz；
The stepwise adjustable light control circuit includes 7, power switches of a microprocessor that can carry out sectional dimming control
Detection circuit and variable electric potential circuit, the power switch detection circuit are included there are one photoelectrical coupler 8, photoelectrical coupler
Luminous tube connects city's alternating current, the power supply of the DC signal output connection microprocessor of photoelectrical coupler by the power switch
Switch state signal receives input terminal；The variable electric potential circuit includes at least two N-channel field effect transistor switch pipes, is referred to as
First field effect transistor switch pipe 9 and the second field effect transistor switch pipe 10, the first field effect transistor switch pipe and the second field effect transistor switch pipe
Drain electrode connects one end of second resistance R2 and 3rd resistor R3 respectively, is connected after the other end parallel connection of second resistance and 3rd resistor
The source electrode of the power field effect switching tube, the change current potential control terminal of two field effect transistor switch tube grid connection microprocessors.
In embodiment, the segmented LED dimming control circuits further include a startup power supply and provide circuit, described to open
Dynamic power supply provides divider resistance R4 and R5 that circuit includes two series connection, and one end of the divider resistance of series connection connects the rectifier bridge
Direct current positive output end, the other end of divider resistance connect the power input VDD of the fixed rate pulse generator circuit, institute
The power supply that the intermediate concatenation point for stating the divider resistance of two series connection connects secondary coil by a diode 11 provides end, described
The intermediate concatenation point of cathode connection of diode, the power supply of the anode connection secondary coil of diode provide end.
In embodiment, the fixed rate pulse generator circuit is the PWM generator controllers of model FAN103（PWM-
PSR）.
In embodiment, in order to which microprocessor remains to keep within the regular hour current switch shape after cutting off the power
State, and then variable electric potential circuit is controlled by the state；Therefore, there are one energy storage discharge loop, institutes for the microprocessor connection
It states energy storage discharge loop and ensures that the power switch continues to microprocessor and works normally at least 2 seconds after cutting off the power, institute
It states energy storage discharge loop and includes electrolytic capacitor 12 and diode 13, connected after the anode connection of the cathode and electrolytic capacitor of diode
To the feeder ear of microprocessor, the direct current supply output of the anode connection secondary coil of diode；Diode described in the present embodiment
The Schottky diode of model BAT54C is used, mainly effect is to prevent capacitance recoil electric discharge.
In embodiment, the electrolytic capacitor is at least the electrolytic capacitor of 2200 microfarads.
It is the light-dimming method of desk lamp with dimmer switch below, wherein after the energy storage discharge loop ensures that the power switch is cut off the power
It continues to microprocessor to work normally at least 2 seconds, operation and control power switch on-off is connected again, is disconnected, again
The time of connection is less than 2 seconds；It is provided with power switch number register in the microprocessor, the light-dimming method step is：
A. when power switch first switches on, microprocessor exports two same potential signals to the first electronic switch and second
The switch control terminal of electronic switch, the pulse-width adjustment control terminal of fixed rate pulse generator circuit obtain the first electric potential signal,
The first pulse width signal of fixed rate pulse generator circuit output, LED pipe, which shines, sends out the first brightness；Referring to Fig. 1, resistance at this time
R1, R2, R3 parallel connection all-in resistance become smaller or R2, R3 are disconnected, and only R1 accesses all-in resistance highest at this time, works as power
According to the control of Electric potentials of the all-in resistance turn-on time of power field effect switching tube when field effect transistor switch pipe 6 is connected；
B. when power switch is connected for the second time, microprocessor exports two different potentials signals to the first electronic switch and second
The switch control terminal of electronic switch, the pulse-width adjustment control terminal of fixed rate pulse generator circuit obtain the second electric potential signal,
The second pulse width signal of fixed rate pulse generator circuit output, LED pipe, which shines, sends out the second brightness；With step a similarly, at this time
Resistance R2 or R3 is in parallel with R1 to form another all-in resistance, when power field effect switching tube 6 is connected according to the current potential of all-in resistance
Control another turn-on time of power field effect switching tube；
C. when power switch third time connect when, microprocessor export two same potentials and with the current potential of step a signal inversions
Signal is to the first electronic switch and the switch control terminal of the second electronic switch, the pulse-width adjustment of fixed rate pulse generator circuit
Control terminal obtains third electric potential signal, the second pulse width signal of fixed rate pulse generator circuit output, and LED pipe, which shines, sends out the
Three brightness；The all-in resistance that the all-in resistance of resistance R1, R2, R3 compositions is just with step a at this time changes on the contrary, step a all-in resistances
Minimum, then the all-in resistance of step c is maximum or on the contrary；When power field effect switching tube 6 is connected according to the current potential control of all-in resistance
Another turn-on time of power field effect switching tube is made；
E. when the 4th connection of power switch, power switch number register set return to step a.
The step of above-described embodiment is three-stage dimming, if after carrying out four times, five times more times, connected according to number secondary
Several resistance parallel with one another, and carry out the judgement of the number and export the various combination signal of the number, obtain difference
All-in resistance in parallel is combined, and then realizes the light modulation of the number.
Claims (5)
1. a kind of adjustable segmented LED light, including：The company of one socket that can be docked with lamp holder, the socket and a closing
Female connector one end connects, and LED pipe, a transparent lamp shade and the connector sleeve other end are fixedly installed in the port of the connector sleeve other end
Port connects and clasps LED pipe, is set in the connector sleeve and is fixed with light adjusting circuit；The light adjusting circuit passes through including one
The rectifier bridge that power switch is electrically connected by power switch through socket and lamp holder through socket and lamp holder with city's exchange, one and rectification
The LED light control output circuit of bridge direct current output connection；It is characterized in that, the LED light control output circuit includes：One by
The high frequency transformer of primary coil, secondary coil and magnetic core composition, the impulse generator and one of a driving primary coil oscillation
A stepwise adjustable light control circuit；Primary coil shines for driving LED pipe and provides power supply, and secondary coil is by rectification circuit can
Width pulse generator and stepwise adjustable light control circuit is adjusted to provide DC power supply；
One end of the primary coil connects rectifier bridge direct current positive output end and as the cathode connecting pin of LED pipe, primary coil
The other end connect the anode of a rectifier diode, the anode connection terminal of the cathode of rectifier diode as LED pipe；
The turnable pulse width impulse generator driving primary coil does energy storage oscillation, and primary coil is released by the rectifier diode
Energy storage driving LED pipe is put to shine；
The turnable pulse width impulse generator includes a fixed rate pulse generator circuit and a N-channel power field effect
Switching tube；The drain electrode of power field effect switching tube connects the other end of the primary coil and the anode of the rectifier diode,
The source electrode of power field effect switching tube connects rectifier bridge direct current negative output terminal by first resistor, and the pulse-generator circuit has
One pulse-width adjustment control terminal that pulse-width adjustment is realized by potential change, the pulse-width adjustment control terminal connect power field effect
The source electrode of switching tube, the grid of the pulse output connection power field effect switching tube of the fixed rate pulse generator circuit,
The pulse-generator circuit switchs the control voltage of tube grid and source electrode by changing power field effect, and then changes power field
The pulsewidth output of effect switch pipe；
The stepwise adjustable light control circuit, which includes one, can carry out the microprocessor of sectional dimming control, a power switch inspection
Slowdown monitoring circuit and variable electric potential circuit, the power switch detection circuit is including there are one photoelectrical coupler, the hairs of photoelectrical coupler
Light pipe connects city's alternating current by the power switch, and the power supply of the DC signal output connection microprocessor of photoelectrical coupler is opened
Off status signal receives input terminal；The variable electric potential circuit includes at least two N-channel field effect transistor switch pipes, is referred to as the
One field effect transistor switch pipe and the second field effect transistor switch pipe, the first field effect transistor switch pipe and the drain electrode point of the second field effect transistor switch pipe
Not Lian Jie second resistance and 3rd resistor one end, connect the power field after the other end parallel connection of second resistance and 3rd resistor
The source electrode of effect switch pipe, the change current potential control terminal of two field effect transistor switch tube grid connection microprocessors.
A kind of 2. adjustable segmented LED light according to claim 1, which is characterized in that the segmented LED adjusting optical controls
Circuit processed further includes a startup power supply and provides circuit, and the startup power supply provides the divider resistance that circuit includes two series connection,
One end of the divider resistance of series connection connects the rectifier bridge direct current positive output end, the other end connection fixed frequency of divider resistance
The power input of rate pulse-generator circuit, the intermediate concatenation point of the divider resistance of described two series connection pass through a diode
The power supply for connecting secondary coil provides end, and the cathode connection of the diode is intermediate to concatenate point, and the anode connection of diode is secondary
The power supply of coil provides end.
3. a kind of adjustable segmented LED light according to claim 1, which is characterized in that the fixed frequency pulse occurs
Device circuit is the PWM generator controllers of model FAN103.
4. a kind of adjustable segmented LED light according to claim 1, which is characterized in that the microprocessor is connected with one
A energy storage discharge loop, it is normal that the energy storage discharge loop ensures that the power switch continues to microprocessor after cutting off the power
Work at least 2 seconds, the energy storage discharge loop include electrolytic capacitor and diode, and the cathode and electrolytic capacitor of diode are just
The feeder ear of microprocessor, the direct current supply output of the anode connection secondary coil of diode are connected to after the connection of pole.
5. a kind of adjustable segmented LED light according to claim 4, which is characterized in that the electrolytic capacitor is at least
The electrolytic capacitor of 2200UF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196209.5A CN108235496A (en) | 2016-12-22 | 2016-12-22 | A kind of adjustable segmented LED light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611196209.5A CN108235496A (en) | 2016-12-22 | 2016-12-22 | A kind of adjustable segmented LED light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108235496A true CN108235496A (en) | 2018-06-29 |
Family
ID=62656126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611196209.5A Pending CN108235496A (en) | 2016-12-22 | 2016-12-22 | A kind of adjustable segmented LED light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108235496A (en) |
-
2016
- 2016-12-22 CN CN201611196209.5A patent/CN108235496A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102821518B (en) | LED drive circuit, LED illumination component, led illumination device, and led illumination system | |
| CN103442501B (en) | Forced constant flow source dimming LED (Light Emitting Diode) lamp | |
| CN102740545A (en) | Constant voltage dimmable led driver | |
| CN104703358B (en) | Wide-voltage-range LED (light emitting diode) lamp switching and dimming driving circuit and LED lamp dimming control system | |
| CN104883799B (en) | Control method, control circuit, system and LED lamp for LED driving | |
| CN103079320B (en) | LED (Light Emitting Diode) constant current controller and LED constant current drive circuit | |
| CN109769321A (en) | A kind of LED lamp circuit with Delayed extinguishing function | |
| CN107148132B (en) | Single live wire on-state power taking circuit | |
| KR20130030714A (en) | Power saving led lighting | |
| CN106255273B (en) | The color-temperature regulating chip that can intelligently switch during output open circuit | |
| CN106489303A (en) | Phase cut power controls | |
| CN103256509B (en) | Sectional type LED dimming lamp without externally arranged dimmer and dimming method thereof | |
| CN203289704U (en) | Sectional type LED (Light-Emitting Diode) lamp capable of light modulation and free of external light modulator | |
| CN103139991A (en) | Light-adjustable light-emitting diode (LED) drive circuit | |
| US20120019158A1 (en) | Polarity-reversible dimming controller having function of switching light source | |
| CN102149245A (en) | Electronic ballast of efficient and light-adjustable gas discharge lamp | |
| CN204539551U (en) | The switch dimming drive circuit of narrow voltage LED and LED dimming control system | |
| US10805996B1 (en) | Dial segmented dimming circuit | |
| US9591710B1 (en) | Kind of LED phase cut dimming power supply | |
| CN205124073U (en) | Utilize switch to realize circuit and lamps and lanterns of adjusting luminance | |
| CN108235496A (en) | A kind of adjustable segmented LED light | |
| CN204539556U (en) | The switch dimming drive circuit of Width funtion LED and LED dimming control system | |
| CN201438773U (en) | LED dimming device | |
| CN211240169U (en) | Flashlight control circuit capable of circularly adjusting light brightness | |
| CN204948421U (en) | A kind of short-circuit protection circuit and intelligent dimming color-temperature regulating drive system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180629 |