CN206380138U - Can hand-reset switch dimming toning linear constant current driving power supply and light fixture - Google Patents
Can hand-reset switch dimming toning linear constant current driving power supply and light fixture Download PDFInfo
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- CN206380138U CN206380138U CN201720054784.5U CN201720054784U CN206380138U CN 206380138 U CN206380138 U CN 206380138U CN 201720054784 U CN201720054784 U CN 201720054784U CN 206380138 U CN206380138 U CN 206380138U
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- reset
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- control unit
- current
- rectification filtering
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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]
Abstract
It is a kind of can hand-reset switch dimming toning linear constant current driving power supply and light fixture, including：Rectification filtering unit, for the alternating current of external power source to be converted into direct current；Switch module, is arranged between external power source and rectification filtering unit, for performing switching action or homing action so that rectification filtering unit exports corresponding switching signal or reset signal；LED luminescence units, including LED string；Switch Control unit, connection LED luminescence units and rectification filtering unit, for the output current in each LED string is controlled after detecting switching signal accordingly to adjust colour temperature and the brightness of LED string；Reset detection control unit, connection rectification filtering unit and Switch Control unit, for after reset signal is detected trigger switch switch control unit control system reset.By setting up a reset detection control unit, hand-reset action can be performed using switch module, user can at any time operate without waiting for the long time and allow light fixture to reset.
Description
Technical field
The utility model is related to light source field, more particularly to it is a kind of can the switch dimming toning linear constant current of hand-reset drive
Dynamic power supply.
Background technology
The light fixture part that current LED constant current driving power supply makes has switch dimming toning function, main with one kind below
Simple illustration is carried out exemplified by the LED linear constant current switch light modulation toning driving power supply of stream, as shown in figure 1, the switch dimming is adjusted
There is colo(u)r streak constant-current driving power supply switch dimming to mix colours and auto-reset function, and manual switching switch on wall K1 can adjust lamp
The colour temperature of tool and the brightness of light fixture.Specifically, colour temperature regulation has three state, respectively 6500K, 4500K, 3000K.Work as colour temperature
During for 6500K, lamp brightness is 100%；When colour temperature is 4500K, lamp brightness is 50%；When colour temperature is 3000K, light fixture
Brightness is X%.
Wherein, switch dimming toning linear constant current driving power supply has memory retention function and auto-reset function, passes through
Electric capacity C2 parameter is adjusted, the resetting time of light fixture can be adjusted, when the colour temperature and brightness settings of light fixture are in some work shape
State, switch on wall K1 shut-off after, electric capacity C2 start electric discharge, discharge time terminate rear control chip U1 vdd terminal mouth detect it is low
Level signal, then system resetted, light fixture returns to original operating state after switch on wall K1 starts, and complete to reset is dynamic
Make.
This mode that automatically resets, although without performing unnecessary operation to switch on wall K1, but user need to be in wall
The long time is waited after wall switch K1 shut-offs, can just allow light fixture to reset, it is necessary to spend certain stand-by period, on the contrary not enough just
Profit.
Utility model content
The technical problems to be solved in the utility model is that the drawbacks described above for prior art can be manual there is provided one kind
The switch dimming toning linear constant current driving power supply and light fixture of reset.
The utility model solves the technical scheme that its technical problem used：Construction it is a kind of can hand-reset switch adjust
Light toning linear constant current driving power supply, including：
Rectification filtering unit, for the alternating current of external power source to be converted into direct current；
Switch module, is arranged between external power source and rectification filtering unit, for performing switching action or homing action
So that rectification filtering unit exports corresponding switching signal or reset signal；
LED luminescence units, including LED string；
Switch Control unit, connection LED luminescence units and rectification filtering unit, for after switching signal is detected
The output current in each LED string is controlled accordingly to adjust colour temperature and the brightness of LED string；
Reset detection control unit, connection rectification filtering unit and Switch Control unit, for detecting reset
Trigger switch switch control unit control system resets after signal.
It is described in the utility model can hand-reset switch dimming toning linear constant current driving power supply in, it is described reset
Detection control unit includes a control chip, and the input of control chip is connected to the just defeated of the rectifier bridge in rectification filtering unit
Go out end, the output end of control chip is connected to the reset terminal of Switch Control unit.
It is described in the utility model can hand-reset switch dimming toning linear constant current driving power supply in, LED string
Quantity be two, the Switch Control unit include a current constant control chip, for set switching time first electricity
Appearance, the second electric capacity for the reset time, for set two LED strings output current first resistor and second electricity
Resistance, 3rd resistor, the VCC power ports of current constant control chip are as the reset terminal via the second capacity earth, the constant current
The VDD power ports of control chip are via the first capacity earth, and the supply port of the current constant control chip is via the described 3rd
Resistance is connected to the positive output end of the rectifier bridge in rectification filtering unit, and two constant current output ports of current constant control chip are one by one
The corresponding negative pole for being connected to two LED strings, first output current of the current constant control chip sets port and second
Individual output current connects the first resistor between setting port, and second output current sets port to be connect via second resistance
Ground.
It is described in the utility model can hand-reset switch dimming toning linear constant current driving power supply in, the rectification
Filter unit includes wire resistor, rectifier bridge, the first diode, electrolytic capacitor filter, discharge resistance；
The positive input terminal of external power source is connected after the positive input terminal elder generation of rectifier bridge through the wire resistor, switch module, it is whole
The negative input end for flowing bridge connects the negative input end of external power source, and the positive output end of rectifier bridge connects reset detection control list respectively
Member, Switch Control unit, the positive pole of the first diode, the negative pole of the first diode connect each LED string positive pole and
It is grounded respectively via electrolytic capacitor filter, discharge resistance.
It is described in the utility model can hand-reset switch dimming toning linear constant current driving power supply in, the switch
Module includes a switch on wall, and one end of switch on wall and the positive input terminal of external power source are connected, the other end and rectifying and wave-filtering list
The positive input terminal of member is connected.
The invention also discloses a kind of LED lamp, including it is described can hand-reset switch dimming toning it is linear
Constant-current driving power supply.
Implement it is of the present utility model can hand-reset switch dimming toning linear constant current driving power supply and light fixture, have
Following beneficial effect：The utility model sets up a reset detection control unit, and switch module can be by performing homing action
Rectification filtering unit is set to export reset signal, reset detection control unit can detect trigger switch switching control after reset signal
Unit control system processed resets, i.e., user can be multiple manually with the existing switch module realization for being used to dim toning of manual manipulation
Position, user can at any time operate without waiting for the long time and allow light fixture to reset, be greatly saved the stand-by period, to use
Person brings larger convenience.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer：
Fig. 1 is the structural representation of automatically reset switch dimming toning linear constant current driving power supply in the prior art；
Fig. 2 be it is of the present utility model can the switch dimming of hand-reset mix colours the preferable implementation of linear constant current driving power supply
The structural representation of example.
Embodiment
In order to be better understood from above-mentioned technical proposal, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to this
Apply for the detailed description of technical scheme, rather than the restriction to technical scheme, in the case where not conflicting, this practicality
Technical characteristic in new embodiment and embodiment can be mutually combined.
With reference to Fig. 2, be it is of the present utility model can hand-reset switch dimming toning linear constant current driving power supply compared with
The structural representation of good embodiment.
It is of the present utility model can hand-reset switch dimming toning linear constant current driving power supply include：Switch module 100,
Rectification filtering unit 200, reset detection control unit 300, LED luminescence units 400, Switch Control unit 500；Wherein,
Rectification filtering unit 200 connects external power source, LED luminescence units 400, Switch Control unit via switch module 100
500th, reset detection control unit 300 is connected to rectification filtering unit 200, and LED luminescence units 400 and reset detection control are single
Member 300 is additionally coupled to Switch Control unit 500.
Lower mask body introduces unit or module.
Switch module 100：
Be arranged between external power source AC and rectification filtering unit 200, for performing switching action or homing action so that
Rectification filtering unit 200 exports corresponding switching signal or reset signal.
In preferred embodiment, the switch module 100 is specially a switch on wall, one end of switch on wall and external power source
AC positive input terminal L connections, the other end is connected with the positive input terminal of rectification filtering unit 200.It is, of course, understood that
Switch on wall can also be arranged between external power source AC negative input end N and the negative input end of rectification filtering unit 200.
In preferred embodiment, switching action is specially that shut-off switch on wall is closed again, and effective switching action must assure that
Time interval between shut-off and closure should be less than switching time T1, if the time interval being closed again after switch on wall shut-off surpasses
Cross switching time T1 and less than the time T2 that automatically resets, then current operating state is kept, if exceeded after switch on wall is turned off
The time T2 of automatically reseting is not closed also, then system is automatically reset, and is recovered to original operating state.
In preferred embodiment, homing action can be continuously to be rapidly performed by the action that switch-off is closed again twice.
Of course, it should be understood that the read-around ratio that is closed again of shut-off is not limited to twice, can be set as being more than once other
Meaning number of times.Wherein, continuous standard is that the time interval between previous closure and the shut-off of next time is less than default hand-reset
Time T3, it is clear that T3 is less than switching time T1.
Rectification filtering unit 200：
Rectification filtering unit 200 is used to external power source AC alternating current being converted to direct current.It is described in preferred embodiment
Rectification filtering unit 200 includes wire resistor FR1, rectifier bridge DB1, the first diode D1, electrolytic capacitor filter E1, discharge resistance
It is grounded R4.After rectifier bridge DB1 positive input terminal elder generation the just defeated of external power source AC is connected through the wire resistor FR1, switch on wall
Enter and hold L, rectifier bridge DB1 negative input end connection external power source AC negative input end N, rectifier bridge DB1 positive output end connects respectively
Reset detection control unit 300, Switch Control unit 500, the first diode D1 positive pole are connect, the first diode D1's is negative
Pole connects the positive pole of each LED string and respectively via electrolytic capacitor filter E1, discharge resistance ground connection R4.
LED luminescence units 400：
The quantity of LED string includes two in the present embodiment, is designated as LED string 1 and LED string 2, LED luminescence units 400
The first diode D1 of positive pole and the inside of rectification filtering unit 200 of the lamp string of the inside two negative pole connection.Wherein LED string 1 by
LED1~LEDn is constituted, and colour temperature is 6500K；LED string 2 is made up of LEDn+1~LEDm, and colour temperature is 3000K.
Switch Control unit 500：
Switch Control unit 500 is used for the output in each LED string is controlled after detecting switching signal accordingly
Electric current is held to adjust colour temperature and the brightness of LED string, and when still not closed more than resetting time T2 after switch on wall shut-off
Row automatically resets.
Specifically, Switch Control unit 500 include a current constant control chip U1, for set switching time T1 the
One electric capacity C1, the second electric capacity C2 for reset time T2, the output current for setting LED string 1 and LED string 2
First resistor R1 and second resistance R2,3rd resistor R3.Current constant control chip U1 VCC power ports as reset terminal via
Second electric capacity C2 is grounded, and current constant control chip U1 VDD power ports are grounded via the first electric capacity C1, current constant control chip U1's
Supply port VIN is connected to the positive output end of the rectifier bridge DB1 in rectification filtering unit 200, constant current control via 3rd resistor R3
Coremaking piece U1 constant current output port OUT1 is connected to the negative pole of LED string 1, current constant control chip U1 constant current output port
OUT2 is connected to the negative pole of LED string 2, and current constant control chip U1 electric current sets port REXT1 and electric current to set port REXT2
Between connect the first resistor R1, electric current sets port REXT2 to be grounded via second resistance R2.
Output current is controlled by R1 and R2, and switching time T1 is C1 discharge time, when resetting time T2 is C2 electric discharge
Between.Therefore, by setting R1 and R2 resistance to set output current, by setting C1, C2 capacitance to change switching
Time T1 and resetting time T2.
In an initial condition, after switch on wall closure, current constant control chip U1 carries out electric current constant current output to system, and constant current is defeated
Exit port OUT1 output current I1=0, constant current output port OUT2 output current I2=0.6/R2, LED string 2 is lighted, LED
String 1 extinguishes, and output current is maximum, and light fixture colour temperature is 6500K, brightness 100%；It is closed again after switch on wall is turned off for the first time,
U1 carries out state switching, constant current output port OUT1 electric currents I1=(0.45-0.3)/R1, constant current output port OUT2 output currents
I2=0.3/R2- (0.45-0.3)/R1, LED string 2 and LED string 1 are lighted, and output current is maximum half, light fixture colour temperature
For 4500K, brightness 50%；It is closed again when after second of shut-off of switch on wall, U1 carries out state switching, constant current output port OUT1
Output current I1=0.15/R1+R2, constant current output port OUT2 output current I2=0, LED string 1 is lighted, LED string 2 puts out
Go out, light fixture colour temperature is 3000K, brightness X%；It is closed again after switch on wall third time is turned off, U1 carries out state switching, returns again
Lighted to LED string 2, LED string 1 extinguish working condition, the like.
When the colour temperature and brightness settings of light fixture are in some working condition, C2 electric capacity starts electric discharge after switch on wall is turned off,
If it exceeds resetting time T2 is not closed, the vdd terminal mouth that C2 discharge times terminate rear U1 detects low level signal, and system is carried out
Automatically reset.When switch on wall starts, light fixture is returned to the initialization shape for returning to that LED string 2 is lighted, LED string 1 extinguishes
State, completes the action resetted.
Reset detection control unit 300：
Reset detection control unit 300 connects rectification filtering unit 200 and Switch Control unit 500, in inspection
The control system of trigger switch switch control unit 500 after reset signal is measured to reset.
Specifically, the reset detection control unit 300 includes a control chip U2, control chip U2 input is connected
The positive output end of rectifier bridge DB1 into rectification filtering unit 200, control chip U2 output end is connected to current constant control chip
U1 reset terminal, i.e. VCC power ports.Because when automatically reseting, after what VCC power ports were detected is electric capacity C2 discharge offs
Low level signal, so reset detection control unit 300 after the homing action of switch on wall is detected only need to export low electricity
Ordinary mail number to U1 VCC power ports.It can be seen that, in the utility model, the introducing of reset detection control unit 300 is without right
Original system architecture or system configuration carry out any modification.
It should be clear that, control chip U2 particular type and model are not limited, as long as it can detect that level becomes
Change, Timing is counted.
When carrying out hand-reset, no matter under which kind of working condition, user only needs continuously quickly to hold switch on wall
Shut-off is closed again operation to row twice, and rectifier bridge DB1 positive output end can produce reset signal, and this reset signal is input to reset
Detection control unit 300, the output low level signal of reset detection control unit 300 is to U1 VCC power ports, U1 detection
Activation system reset command after to the low level signal of VCC power ports, the lamp string of LED luminescence units 400 is controlled, light fixture colour temperature
Revert to that original state, i.e. LED string 2 are lighted, LED string 1 extinguishes, output current is maximum, light fixture colour temperature is 6500K, brightness
100%, so complete the action of a hand-reset.
Accordingly, the invention also discloses a kind of LED lamp, including it is described can the switch dimming of hand-reset adjust
Colo(u)r streak constant-current driving power supply.
In summary, implement it is of the present utility model can hand-reset switch dimming toning linear constant current driving power supply and
Light fixture, has the advantages that：The utility model sets up a reset detection control unit, and switch module can be by performing
Homing action makes rectification filtering unit export reset signal, and reset detection control unit can detect triggering after reset signal and open
Close switch control unit control system to reset, i.e., user can be real with the existing switch module for being used to dim toning of manual manipulation
Existing hand-reset, user can at any time operate without waiting for the long time and allow light fixture to reset, when being greatly saved wait
Between, it is that user brings larger convenience.
Embodiment of the present utility model is described above in conjunction with accompanying drawing, but the utility model is not limited to
The embodiment stated, above-mentioned embodiment be only it is schematical, rather than restricted, this area it is common
Technical staff is not departing from the utility model objective and scope of the claimed protection situation under enlightenment of the present utility model
Under, many forms can be also made, these are belonged within protection of the present utility model.
Claims (6)
1. it is a kind of can hand-reset switch dimming toning linear constant current driving power supply, it is characterised in that including：
Rectification filtering unit, for the alternating current of external power source to be converted into direct current；
Switch module, is arranged between external power source and rectification filtering unit, for performing switching action or homing action so that
Rectification filtering unit exports corresponding switching signal or reset signal；
LED luminescence units, including LED string；
Switch Control unit, connection LED luminescence units and rectification filtering unit, for corresponding after switching signal is detected
Each LED string of control in output current to adjust colour temperature and the brightness of LED string；
Reset detection control unit, connection rectification filtering unit and Switch Control unit, for detecting reset signal
Trigger switch switch control unit control system resets afterwards.
2. it is according to claim 1 can hand-reset switch dimming toning linear constant current driving power supply, it is characterised in that
The reset detection control unit includes a control chip, and the input of control chip is connected to the rectification in rectification filtering unit
The positive output end of bridge, the output end of control chip is connected to the reset terminal of Switch Control unit.
3. it is according to claim 2 can hand-reset switch dimming toning linear constant current driving power supply, it is characterised in that
The quantity of LED string is two, and the Switch Control unit includes a current constant control chip, for setting switching time
First electric capacity, the second electric capacity for the reset time, for set two LED strings output current first resistor and
Second resistance, 3rd resistor, the VCC power ports of current constant control chip are as the reset terminal via the second capacity earth, institute
The VDD power ports of current constant control chip are stated via the first capacity earth, the supply port of the current constant control chip is via institute
State the positive output end for the rectifier bridge that 3rd resistor is connected in rectification filtering unit, two constant current output ends of current constant control chip
The one-to-one negative pole for being connected to two LED strings of mouth, first output current of the current constant control chip sets port
The first resistor is connected between port is set with second output current, second output current sets port via the second electricity
Resistance ground connection.
4. it is according to claim 1 can hand-reset switch dimming toning linear constant current driving power supply, it is characterised in that
The rectification filtering unit includes wire resistor, rectifier bridge, the first diode, electrolytic capacitor filter, discharge resistance；
The positive input terminal of external power source, rectifier bridge are connected after the positive input terminal elder generation of rectifier bridge through the wire resistor, switch module
Negative input end connect the negative input end of external power source, the positive output end of rectifier bridge connects reset detection control unit, opens respectively
Switch control unit, the positive pole of the first diode are closed, the negative pole of the first diode connects the positive pole of each LED string and passed through respectively
It is grounded by electrolytic capacitor filter, discharge resistance.
5. it is according to claim 1 can hand-reset switch dimming toning linear constant current driving power supply, it is characterised in that
The switch module includes a switch on wall, and the positive input terminal of one end of switch on wall and external power source is connected, the other end with it is whole
The positive input terminal of stream filter unit is connected.
6. a kind of LED lamp, it is characterised in that including as described in claim any one of 1-5 can the switch of hand-reset adjust
Light toning linear constant current driving power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054784.5U CN206380138U (en) | 2017-01-16 | 2017-01-16 | Can hand-reset switch dimming toning linear constant current driving power supply and light fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720054784.5U CN206380138U (en) | 2017-01-16 | 2017-01-16 | Can hand-reset switch dimming toning linear constant current driving power supply and light fixture |
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| Publication Number | Publication Date |
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| CN206380138U true CN206380138U (en) | 2017-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720054784.5U Active CN206380138U (en) | 2017-01-16 | 2017-01-16 | Can hand-reset switch dimming toning linear constant current driving power supply and light fixture |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836420A (en) * | 2019-04-17 | 2020-10-27 | 漳州立达信光电子科技有限公司 | LED driving method, circuit, LED device and driving power module |
| CN112040605A (en) * | 2019-06-03 | 2020-12-04 | 东贝光电科技股份有限公司 | High-voltage linear driving and memory dimming LED light-emitting device |
-
2017
- 2017-01-16 CN CN201720054784.5U patent/CN206380138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111836420A (en) * | 2019-04-17 | 2020-10-27 | 漳州立达信光电子科技有限公司 | LED driving method, circuit, LED device and driving power module |
| CN112040605A (en) * | 2019-06-03 | 2020-12-04 | 东贝光电科技股份有限公司 | High-voltage linear driving and memory dimming LED light-emitting device |
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