CN206274691U - A kind of LED lamp drive circuit and LED lamp - Google Patents
A kind of LED lamp drive circuit and LED lamp Download PDFInfo
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- CN206274691U CN206274691U CN201621466566.4U CN201621466566U CN206274691U CN 206274691 U CN206274691 U CN 206274691U CN 201621466566 U CN201621466566 U CN 201621466566U CN 206274691 U CN206274691 U CN 206274691U
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a kind of LED lamp drive circuit,Including LED load,For the power module that LED load is powered,The current regulating module and rotary switch being connected with power module,LED load is arranged on LED branch roads,Rotary switch includes the first potentiometer,Power module has the first power module outlet and second source module output end,Current regulating module has current regulating module input,Current regulating module input connects the first power module outlet,Current regulating module includes the first operational amplifier and first switch element,The output end of the first operational amplifier connects the control end of first switch element,Switch ways one end connection LED load branch road of first switch element,The other end connects second source module output end,The inverting input of the first operational amplifier is grounded by the first potentiometer,Current regulating module input is connected by second resistance device.A kind of LED lamp is also disclosed, has the advantages that circuit structure is reasonable and using effect is good.
Description
Technical field
The utility model is related to technical field of lighting fixtures, more particularly to a kind of LED lamp drive circuit and LED lamp.
Background technology
LED load light fixture, also referred to as LED lamp refer to energy printing opacity, distribution and change the utensil of LED light source light distribution.LED
Light fixture has efficient, energy-conservation, safety, longevity, compact and light clearly technical characterstic, is present civil area illumination market
Main force's product, is also one of leading environmental protection industry of country.
The brightness regulation of existing LED lamp is mainly the quantity by changing lamp holder or changes the distribution of lamp holder come real
It is existing.The rotary switch that conventional lamp is used cannot be used, to adjust the brightness of LED lamp.Being limited to cannot be according to actually making
The brightness of comfort tuning LED lamp, the region of close to sources can be needed to use in reading, writing, and people are often unwilling
Selection LED lamp.
Therefore, the LED lamp of prior art haves the shortcomings that LED lamp brightness cannot be adjusted according to usage comfort.
The content of the invention
The utility model provides a kind of LED lamp drive circuit, to overcome LED lamp to be adjusted according to usage comfort
The shortcoming of LED lamp brightness.
The utility model provides a kind of LED lamp drive circuit, including LED load, the power supply powered for the LED load
Module and the current regulating module and rotary switch of power module connection, the LED load are arranged on LED branch roads,
The rotary switch includes the first potentiometer, wherein the power module has the first power module outlet and second source mould
Block output end, the current regulating module has current regulating module input, and the current regulating module input connects institute
State the first power module outlet, the current regulating module includes the first operational amplifier and first switch element, described the
The output end of one operational amplifier connects the control end of the first switch element, the switch ways one of the first switch element
The end connection LED load branch road, the other end connects the second source module output end, first operational amplifier it is anti-
Phase input is grounded by the first potentiometer, and the current regulating module input is connected by second resistance device.
Further, the current regulating module also include the second operational amplifier, second operational amplifier it is anti-
Phase input connects first power module outlet, and the in-phase input end of second operational amplifier connects the LED
Load branch, the output end of second operational amplifier connects the control end of the first switch element.
Further, the inverting input of second operational amplifier is provided with 3rd resistor device, and in-phase input end sets
The 4th resistor is equipped with, the 4th resistor one end connection LED load branch road simultaneously passes through the 5th resistance-grounded system, the described 5th
The resistor other end connects the LED load；The in-phase input end of first operational amplifier is provided with the 6th resistor, institute
The inverting input for stating the first operational amplifier is provided with the 7th resistor, and the 4th resistor connects the 5th resistor respectively
With the 6th resistor.
Preferably, the first switch element is PMOS, and the drain electrode of the PMOS connects the LED load, described
The source electrode of PMOS connects the second source module output end.
Further, the power module includes adapter circuit, overvoltage crowbar, soft starting circuit and LD0 voltage stabilizings
Circuit；Wherein described adapter circuit, overvoltage crowbar and LD0 mu balanced circuits are sequentially connected, the LD0 mu balanced circuits it is defeated
It is first power module outlet to go out end.
Further, the soft starting circuit includes soft starting circuit input and soft starting circuit output end；It is described soft
Start-up circuit input connects the output end of the overvoltage crowbar, and the soft starting circuit output end is the second source
Module output end.
Further, the soft starting circuit also includes second switch element, and the soft starting circuit input is by the
The switch ways of two switch elements connect the soft starting circuit output end, also including resistors in series bleeder circuit, the string
Connection resistor divider circuit includes the 8th resistor and the 9th resistor that are connected in series, wherein one end of the 8th resistor
The switch ways of the second switch element are electrically connected, the other end connects the control end of the second switch element, the described 9th
Resistor is in parallel with the first capacitor, the 9th resistor one end ground connection.
Further, the overvoltage crowbar includes overvoltage crowbar input, overvoltage crowbar output end, the
Three switch elements, the 4th switch element and the 5th switch element；Wherein described overvoltage crowbar input connects the adaptation
Device circuit, the overvoltage crowbar input connects the 3rd switch unit by the tenth resistor and the first voltage-regulator diode
The control end of part, the switch ways of the 3rd switch element connect the control end of the 4th switch element, and the described 4th opens
The switch ways for closing element connect the control end of the 5th switch element, and the switch ways of the 5th switch element are arranged on
Between the overvoltage crowbar input and the overvoltage crowbar output end.
Preferably, the output voltage of the adapter circuit is 5V direct currents.
LED lamp drive circuit disclosed in the utility model, can adjust the brightness of LED lamp by knob.Pass through
LED lamp drive circuit disclosed in the utility model, meets illumination, the demand of colour rendering index of LED lamp, what regulation was formed
Light stabilisation and be not in glare phenomenon, has the advantages that circuit reliability and using effect is good.
The utility model also discloses a kind of LED lamp, including LED lamp drive circuit, and the LED lamp drives electricity
Road include the current regulating module of LED load, the power module powered for the LED load and power module connection with
And rotary switch, the LED load is arranged on LED branch roads, and the rotary switch includes the first potentiometer, wherein the power supply
Module has the first power module outlet and second source module output end, and there is the current regulating module electric current to adjust mould
Block input, the current regulating module input connects first power module outlet, the current regulating module bag
The first operational amplifier and first switch element are included, the output end of first operational amplifier connects the first switch element
Control end, switch ways one end of the first switch element connects the LED load branch road, other end connection described second
Power module outlet, the inverting input of first operational amplifier is grounded by the first potentiometer, by second resistance
Device connects the current regulating module input.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are
Some embodiments of the present utility model, for those of ordinary skill in the art, are not paying the premise of creative labor
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit connection diagram of LED lamp drive circuit disclosed in the utility model；
Fig. 2 is the circuit connection diagram of adapter circuit in LED lamp drive circuit shown in Fig. 1；
Fig. 3 is the circuit connection diagram of overvoltage crowbar in LED lamp drive circuit shown in Fig. 1；
Fig. 4 is the circuit connection diagram of soft starting circuit in LED lamp drive circuit shown in Fig. 1；
Fig. 5 is the circuit connection diagram of LD0 mu balanced circuits in LED lamp drive circuit shown in Fig. 1；
Fig. 6 is the circuit connection diagram of current regulating module in LED lamp drive circuit shown in Fig. 1.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
It is shown in Figure 1, LED lamp drive circuit disclosed in the utility model it is main by LED lamp, rotary switch,
Power module 1 and current regulating module 6 are constituted.Wherein LED lamp includes that at least one LED load, or multiple LED are negative
The light fixture that load is collectively forming.To LED lamp disclosed in the utility model as a example by using one LED load of use as LED lamp
Drive circuit is further described.
As shown in figure 1, power module 1 includes adapter circuit 2, overvoltage crowbar 3, soft starting circuit 4 and LD0 voltage stabilizings
Circuit 5.Wherein adapter circuit 2 be whole lamp driving circuit output 5V, work isolation voltage, there is provided with AC power it
Between reliable isolation.Adapter circuit 2 has an adapter circuit output end, and the stabilization of 5V or so is provided for next stage circuit
Direct current output.Adapter circuit 2 can select the circuit of common 5V power supply adaptors, the electricity for having various maturations in the prior art
Road is designed, and is not key protection point of the present utility model, will not be repeated here.
The output end of adapter circuit 2 connects overvoltage crowbar 3.Specifically, overvoltage crowbar 3 includes overvoltage protection
Circuit input end and overvoltage crowbar output end.Wherein, the input of the overvoltage crowbar 3 connection adapter circuit output
End, receives the stable DC signal of 5V or so.Overvoltage crowbar input passes through a resistor R24（For the ease of description,
It is designated as the tenth resistor）With the first voltage-regulator diode D5 connections, the other end connection described the of the first voltage-regulator diode D5
The control end of three switch element Q3.The other end of the tenth resistor R24 is grounded by resistor R25.3rd switch element
The switch ways of Q3 connect the control end of the 4th switch element Q4, the switch ways connection of the 4th switch element Q4 described the
The control end of five switch element Q5, the switch ways of the 5th switch element Q5 are arranged on the overvoltage crowbar 3 and are input into
Between end and the output end of the overvoltage crowbar 3.
When the output voltage of the output end of adapter circuit 2 exceedes first threshold, the first voltage-regulator diode reverse breakdown, the
The switch ways conducting of three switch element Q3 and the 4th switch element Q4, the 5th switch element Q5 no longer meets turn-on condition, the
The switch ways of five switch element Q5 disconnect.Wherein, the 3rd switch element Q3 and the 4th switch element Q4 is NPN type triode,
5th switch element Q5 is PMOS.Wherein, being additionally provided with resistance between the base stage and emitter stage of the 3rd switch element Q3 is
The resistor R37 of 100K, is additionally provided with the resistor that resistance is 10K between the base stage and colelctor electrode of the 4th switch element Q4
R27.The grid of the 5th switch element Q5 be provided with resistance be 47K resistor R29, the 5th switch element Q5 grid and
The resistor R28 that resistance is 100K is provided between source electrode, to improve the antijamming capability of circuit, it is ensured that when adapter circuit 2
When the output voltage of output end exceedes first threshold, the 3rd switch element Q3, the 4th switch element Q4 and the 5th switch element Q5
Can quickly and accurately act, the input of overvoltage crowbar 3 and overvoltage are cut off by the switch ways of the 5th switch element Q5
Path between the output end of protection circuit 3, it is to avoid the damage with wrong adapter circuit 2 to next stage circuit.In the present embodiment,
The resistance of resistor R24 is preferably 2.4K, and the resistance of resistor R37 is preferably 15K, so that first threshold is 6V, when suitable
When the output voltage of the output end of orchestration circuit 2 is more than 6V, the input of overvoltage crowbar 3 and overvoltage crowbar 3 are automatically cut off
Path between output end, plays a part of protection circuit.
The next stage circuit of overvoltage crowbar 3 is soft starting circuit 4 and LD0 mu balanced circuits 5.Specifically, soft start
Circuit 4 includes the input of soft starting circuit 4 and the output end of soft starting circuit 4, and LD0 mu balanced circuits 5 are input into including LD0 mu balanced circuits
End and LD0 circuit output end of pressure-stabilizing.Wherein LD0 mu balanced circuits 5 are the adjustable three terminal voltage regulator circuit of output voltage, are used to lead to
Cross reference voltage of the LD0 circuit output end of pressure-stabilizing to next stage circuit output stabilization.The connection overvoltage of LD0 mu balanced circuits input is protected
Protection circuit output end.In the present embodiment, the reference voltage of the preferred output 2V of LD0 mu balanced circuits 5.Make with from LM317 chips
As a example by voltage regulator chip, the output reference voltage of LD0 mu balanced circuits 5 can be by being arranged on LM317 chip grounds end and defeated
The divider resistance setting gone out between end.Other similar voltage stabilizing chips can also be selected, it is only necessary to adjust the resistance of its peripheral circuit
Value can adjust LD0 output end voltage values.LD0 circuit output end of pressure-stabilizing is exported as the first power module of power module 1
End.
The output end of overvoltage crowbar 3 is also connected with soft starting circuit input simultaneously.Is provided with soft starting circuit 4
Two switch element Q2.Soft starting circuit input connects soft starting circuit and exports by the switch ways of second switch element Q2
End, also including resistors in series bleeder circuit.Series resistance bleeder circuit includes the 8th resistor R69 and the 9th being connected in series
Resistor R71.One end of wherein described 8th resistor R69 electrically connects the switch ways of the second switch element Q2, another
The control end of end connection the second element Q2, the 8th resistor R69 is in parallel with the first capacitor C60, the 9th electricity
Resistance device R71 one end ground connection.After the output end of overvoltage crowbar 3 exports DC voltage to 4 input of soft starting circuit, firm
It is passed through in galvanic a period of time, there is the displacement of electric charge moment in the branch road of the first capacitor C60, there is short-time current,
The first capacitor C60 is charged.In this process, second switch element Q2 is unsatisfactory for turn-on condition, switch ways shut-off.
After charging complete, capacitive reactances of the first capacitor C60 to direct current is infinity, hinders direct current to pass through, equivalent to the first capacitor
The place leg open of C60, because the partial pressure of the 8th resistor R69 and the 9th resistor R70 is acted on so that second switch element
Q2 meets turn-on condition, switch ways conducting.Further such that the electricity of soft starting circuit input and soft starting circuit output end
Pressure is equal.In soft starting circuit 4, the first capacitor C60 is preferably the capacitor of 1 μ F, and the resistance of the 8th resistor R69 is
The resistance of 150K, the 9th resistor R71 is 100K.Second switch element Q2 is preferably PMOS, and soft starting circuit output end is
Second source module output end.
The next stage circuit of LD0 mu balanced circuits 5 and soft starting circuit 4 is current adjusting module 6, and LED load is arranged on electricity
On stream adjusting module 6.One important physical characteristics of LED load are that the electric current for flowing through LED load can be converted into light quantity
Son.It means that current doubles can double brightness, equally, it is also feasible to be dimmed by reducing electric current.Based on LED
This characteristic of circuit, is provided with rotary switch in current regulating module 6, and the rotary switch is main by the first potentiometer R1
Composition, the resistance value of the first potentiometer R1 is changed by the position for adjusting the upper slide plates of the first potentiometer R1, and then is changed and passed through the
The electric signal of one potentiometer R1 outputs.Current regulating module 6 has current regulating module input, current regulating module input
The power supply signal of the output of power module 1 is received, LED load (LED4 as shown in Figure 6) is arranged on LED branch roads.
The output end of LD0 mu balanced circuits 5 in power module 1 is the first power module outlet, the output end of soft starting circuit 4
It is second source module output end.Current regulating module input is provided with current regulating module 6, the electric current adjusts mould
Block input connects the first power module outlet.The first operational amplifier U1 and first is provided with current regulating module 6
Switch element Q1.The control end of the output end connection first switch element Q1 of the first operational amplifier U1, first switch element Q1
Switch ways one end be connected with the LED load branch road of LED load, the output end of other end connection second source module 1.The
The inverting input end of one operational amplifier U1 is grounded by the first potentiometer R1, and connecting electric current by second resistance device R2 is adjusted
The input of module 6.Wherein first switch element Q1 is preferably PMOS.Wherein the drain D of PMOS connects LED load, PMOS
The source S connection second source module output end of pipe, that is, soft starting circuit output end.So, when adapter circuit 2 is connected
After power supply, due to the effect of soft starting circuit, the output voltage signal of the first power module outlet is earlier than second source module
The output voltage of output end reaches, and the driving voltage of first switch element Q1 rises has certain delay so that LED load
Brightness is slowly varying, and the eyesight to human body can play certain protective effect.After the connection of adapter circuit 2, by the
One potentiometer R1 is input into a setting voltage value for setting in the inverting input of the first operational amplifier U1, is put in the first computing
The output end of big device U1 can obtain an output voltage corresponding with setting voltage value and output is to first switch element Q1, i.e.,
The control end of PMOS, PMOS meets turn-on condition, has uniform electric current to flow through in LED load.By adjusting the first current potential
The resistance of device R1, the output voltage of the first operational amplifier U1 output ends can also change, the electric current flowed through in LED load
Change, and then adjust the brightness of LED, LED there can be any brightness.In the homophase input of the first operational amplifier U1
End is additionally provided with the 6th resistor R6, and the inverting input of the first operational amplifier U1 is provided with the 7th resistor R7, the
The output end of one operational amplifier U1 is additionally provided with the second diode D2 for voltage stabilizing.
Electric current in LED load branch road constantly rises, and circuit and load is caused in order to avoid electric current therein is excessive damage
It is bad.A second operational amplifier U2 is additionally provided with current regulating module 6.Second operational amplifier U2 compares as one
Device is used, and the power supply and ground wire of the second operational amplifier meet chip and require connection in itself.Second operational amplifier U2's is anti-phase
Input connects the first power module outlet, receives the threshold value comparison voltage of the output of LD0 mu balanced circuits 5, the second operation amplifier
The in-phase input end connection LED load branch road of device U2, the output end connection first switch element Q1's of the second operational amplifier U2
Control end.The inverting input of the second operational amplifier U2 is provided with 3rd resistor device R3, in-phase input end is provided with the 4th
Resistor R4, the 4th resistor R4 one end connection LED load branch road is simultaneously grounded by the 5th resistor R5.4th resistor
R4 is also connected with the 6th resistor R6.The output end of the second operational amplifier U2 is additionally provided with the one or two pole for playing pressure stabilization function
Pipe D1.During normal work, the second operational amplifier U2 output low levels keep first switch element Q1 to meet turn-on condition.When
When electric current in LED load branch road exceedes first threshold, the voltage of the second operational amplifier U2 in-phase input ends is more than anti-phase defeated
Enter the voltage at end, the second operational amplifier U2 output high level so that the switch ways of first switch element Q1 are unsatisfactory for conducting
Condition and turn off, play the protective effect to LED load.
In current regulating circuit, the resistance adjustment scope of the first potentiometer R1 between 0 to 50K, second resistance device R2
Resistance be preferably 150K, 3rd resistor device R3, the 4th resistor R4, the 5th resistor R5 and the 6th resistor R6 resistance it is excellent
Elect 100K as.
LED lamp drive circuit disclosed in the utility model, can adjust the brightness of LED lamp by knob.Pass through
LED lamp drive circuit disclosed in the utility model, meets illumination, the demand of colour rendering index of LED lamp, what regulation was formed
Light stabilisation and be not in glare phenomenon, has the advantages that circuit reliability and using effect is good.
The utility model also discloses a kind of LED lamp simultaneously, using institute in as detailed above and Figure of description
The LED lamp drive circuit for showing.The circuit structure of LED lamp drive circuit referring to above-described embodiment detailed description, herein not
Repeat again.LED lamp disclosed in the utility model can reach same technique effect.
Finally it should be noted that：Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；
Although being described in detail to the utility model with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in foregoing embodiments, or which part technical characteristic is carried out etc.
With replacement；And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technology of the utility model
The spirit and scope of scheme.
Claims (10)
1. a kind of LED lamp drive circuit, it is characterised in that the power module powered including LED load, for the LED load,
The current regulating module and rotary switch being connected with the power module, the LED load is arranged on LED branch roads, described
Rotary switch includes the first potentiometer, wherein the power module has the first power module outlet and second source module defeated
Go out end, the current regulating module has a current regulating module input, the current regulating module input connection described the
One power module outlet, the current regulating module includes the first operational amplifier and first switch element, first fortune
The output end for calculating amplifier connects the control end of the first switch element, and switch ways one end of the first switch element connects
Connect the LED load branch road, the other end connects the second source module output end, first operational amplifier it is anti-phase defeated
Enter end to be grounded by the first potentiometer, the current regulating module input is connected by second resistance device.
2. LED lamp drive circuit according to claim 1, it is characterised in that the current regulating module also includes the
Two operational amplifiers, the inverting input of second operational amplifier connects first power module outlet, and described the
The in-phase input end of two operational amplifiers connects the LED load branch road, the output end connection institute of second operational amplifier
State the control end of first switch element.
3. LED lamp drive circuit according to claim 2, it is characterised in that second operational amplifier it is anti-phase
Input is provided with 3rd resistor device, and in-phase input end is provided with the 4th resistor, and the 4th resistor one end connection LED bears
Carry branch road and by the 5th resistance-grounded system, the 5th resistor other end connects the LED load；First computing is put
The in-phase input end of big device is provided with the 6th resistor, and the inverting input of first operational amplifier is provided with the 7th resistance
Device, the 4th resistor connects the 5th resistor and the 6th resistor respectively.
4. LED lamp drive circuit according to claim 3, it is characterised in that the first switch element is PMOS,
The drain electrode of the PMOS connects the LED load, and the source electrode of the PMOS connects the second source module output end.
5. LED lamp drive circuit according to claim 4, it is characterised in that the power module includes adapter electricity
Road, overvoltage crowbar, soft starting circuit and LD0 mu balanced circuits；Wherein described adapter circuit, overvoltage crowbar and LD0
Mu balanced circuit is sequentially connected, and the output end of the LD0 mu balanced circuits is first power module outlet.
6. LED lamp drive circuit according to claim 5, it is characterised in that the soft starting circuit includes soft start
Circuit input end and soft starting circuit output end；The soft starting circuit input connects the output of the overvoltage crowbar
End, the soft starting circuit output end is the second source module output end.
7. LED lamp drive circuit according to claim 6, it is characterised in that the soft starting circuit also includes second
Switch element, the soft starting circuit input connects the soft starting circuit and exports by the switch ways of second switch element
End, also including resistors in series bleeder circuit, the resistors in series bleeder circuit include the 8th resistor that is connected in series and
9th resistor, wherein one end of the 8th resistor electrically connects the switch ways of the second switch element, the other end connects
The control end of the second switch element is connect, the 9th resistor is in parallel with the first capacitor, described 9th resistor one end
Ground connection.
8. LED lamp drive circuit according to claim 7, it is characterised in that the overvoltage crowbar includes overvoltage
Protection circuit input, overvoltage crowbar output end, the 3rd switch element, the 4th switch element and the 5th switch element；Its
Described in overvoltage crowbar input connect the adapter circuit, the overvoltage crowbar input passes through the tenth resistance
Device and the first voltage-regulator diode connect the control end of the 3rd switch element, the switch ways connection of the 3rd switch element
The control end of the 4th switch element, the switch ways of the 4th switch element connect the control of the 5th switch element
End, the switch ways of the 5th switch element are arranged on the overvoltage crowbar input and the overvoltage crowbar is defeated
Go out between end.
9. LED lamp drive circuit according to claim 8, it is characterised in that the output voltage of the adapter circuit
It is 5V direct currents.
10. a kind of LED lamp, it is characterised in that including the LED lamp drive circuit as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466566.4U CN206274691U (en) | 2016-12-29 | 2016-12-29 | A kind of LED lamp drive circuit and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466566.4U CN206274691U (en) | 2016-12-29 | 2016-12-29 | A kind of LED lamp drive circuit and LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274691U true CN206274691U (en) | 2017-06-23 |
Family
ID=59063724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466566.4U Withdrawn - After Issue CN206274691U (en) | 2016-12-29 | 2016-12-29 | A kind of LED lamp drive circuit and LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714377A (en) * | 2016-12-29 | 2017-05-24 | 歌尔科技有限公司 | LED (Light Emitting Diode) lamp driving circuit and LED lamp |
-
2016
- 2016-12-29 CN CN201621466566.4U patent/CN206274691U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106714377A (en) * | 2016-12-29 | 2017-05-24 | 歌尔科技有限公司 | LED (Light Emitting Diode) lamp driving circuit and LED lamp |
| CN106714377B (en) * | 2016-12-29 | 2018-06-12 | 歌尔科技有限公司 | A kind of LED lamp driving circuit and LED lamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170623 Effective date of abandoning: 20180612 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170623 Effective date of abandoning: 20180612 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |