CN206461810U - A kind of the linear constant current driving power supply and LED light emission device of the toning of controllable silicon light modulation compatibility - Google Patents
A kind of the linear constant current driving power supply and LED light emission device of the toning of controllable silicon light modulation compatibility Download PDFInfo
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- CN206461810U CN206461810U CN201720151040.5U CN201720151040U CN206461810U CN 206461810 U CN206461810 U CN 206461810U CN 201720151040 U CN201720151040 U CN 201720151040U CN 206461810 U CN206461810 U CN 206461810U
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
A kind of the linear constant current driving power supply and LED light emission device of the toning of controllable silicon light modulation compatibility, including：Rectification unit (100), for the alternating current of external power source to be converted into direct current；Leakage current control unit (200), is connected with the output end of rectification unit, for controlling the maintenance electric current required for controllable silicon dimmer；Warm white constant-current control unit (300), is connected with leakage current control unit, the electric current for controlling warm white LED lamp string；Positive white light constant-current control unit (400), it is connected with leakage current control unit and warm white constant-current control unit, positive white LED lamp string in positive white light constant-current control unit is in parallel with the warm white constant-current control unit, the operating voltage of warm white LED lamp string is less than the operating voltage of positive white LED lamp string, positive white light constant-current control unit (400) is used for the total current for controlling positive white LED lamp string and warm white LED lamp string, the utility model system architecture simplifies easy-to-use, and thyristor regulating photoreduction process has reached the compatible toning effect of light modulation.
Description
Technical field
The utility model is related to field of LED drive, more particularly to a kind of linear constant current of controllable silicon light modulation compatibility toning drives
Dynamic power supply and LED light emission device.
Background technology
LED as a kind of new type light source, because it possess that brightness is strong, energy consumption is low and long lifespan advantage be widely used in
Every field.Because LED has fixed forward conduction voltage, total forward conduction voltage of whole LED string is only reached
When, LED string could light.In order to ensure that LED string can work, it is necessary to carry out current constant control to it normal table, pass
The linear constant current driving power supply of the controllable silicon light modulation compatibility toning of system, system architecture is complicated, the periphery member required for application circuit
Device is more.
Utility model content
The technical problems to be solved in the utility model is, for the defect that the said system framework of prior art is complicated,
There is provided a kind of framework has the linear constant current driving power supply and the luminous dresses of LED for simplifying easy-to-use controllable silicon light modulation compatibility toning
Put.
The utility model solves the technical scheme that its technical problem used：Construct a kind of controllable silicon light modulation compatibility toning
Linear constant current driving power supply, including：
Rectification unit, for the alternating current of external power source to be converted into direct current；
Leakage current control unit, is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintain electric current；
Warm white constant-current control unit, is connected with leakage current control unit, the electricity for controlling warm white LED lamp string
Stream；
Positive white light constant-current control unit, is connected, just in vain with leakage current control unit and warm white constant-current control unit
Positive white LED lamp string in light constant-current control unit is in parallel with warm white constant-current control unit, the work electricity of warm white LED lamp string
Pressure is less than the operating voltage of positive white LED lamp string, and the positive white light constant-current control unit is for controlling positive white LED lamp string and warming up
The total current of white LED lamp string.
In the linear constant current driving power supply of controllable silicon light modulation described in the utility model compatibility toning, the positive white light is permanent
Flow control unit includes：Positive white LED lamp string, the first constant current chip, first resistor, second resistance, filter capacitor and the 3rd electricity
Resistance,
3rd resistor is in parallel with filter capacitor, and the positive pole of positive white LED lamp string connects the positive pole of filter capacitor, positive white light
The negative pole of the negative pole connection filter capacitor of LED string and two constant current output ports of the first constant current chip, the first constant current core
First constant current of piece set port by first resistor welding system and second constant current sets port to be connect by second resistance
Systematically, two of the first constant current chip output ground port welding system.
In the linear constant current driving power supply of controllable silicon light modulation described in the utility model compatibility toning, the warm white is permanent
Flow control unit includes：Warm white LED lamp string, the second constant current chip and the 4th resistance,
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, and the negative pole of warm white LED lamp string connects
The constant current output port of the second constant current chip is connect, the constant current of the second constant current chip sets port permanent via the 4th resistance connection second
The output ground port of chip is flowed, the output ground port of the second constant current chip connects two constant current output ends of the first constant current chip
Mouthful.
In the linear constant current driving power supply of controllable silicon light modulation described in the utility model compatibility toning, the leakage current
Control unit includes：5th resistance, the 6th resistance, the 3rd constant current chip, isolating diode,
The positive pole of isolating diode connects the positive output end of rectification unit, and the negative pole of isolating diode connects positive white light LEDs
The positive pole of lamp string and the positive pole of warm white LED lamp string, the constant current output port of the 3rd constant current chip connect whole via the 6th resistance
Flow the positive output end of unit, the output of the 3rd constant current chip ground port welding system, the constant current of the 3rd constant current chip sets port
First constant current for connecting the first constant current chip via the 5th resistance sets port.
In the linear constant current driving power supply of controllable silicon light modulation described in the utility model compatibility toning, the rectification unit
Insure resistance and rectifier bridge including coiling, the positive input terminal of rectifier bridge insures resistance and controllable silicon dimmer via the coiling
Civil power live wire is connected, the negative input end connection civil power zero line of rectifier bridge, the positive output end of rectifier bridge is connecting isolating diode just
Pole, the negative output terminal of rectifier bridge as it is described systematically.
The invention also discloses a kind of LED light emission device, including described controllable silicon light modulation compatibility toning is linear
Constant-current driving power supply.
Implement the linear constant current driving power supply of controllable silicon light modulation compatibility toning of the present utility model, with following beneficial effect
Really：Warm white constant-current control unit can voluntarily control the electric current of warm white LED lamp string, positive white light current constant control in the utility model
Positive white LED lamp string in unit is in parallel with warm white constant-current control unit, based on this, and positive white light constant-current control unit is used to control
The total current of positive white LED lamp string and warm white LED lamp string is made, system architecture of the present utility model simplifies easy-to-use, works as controllable silicon
The light-control knob of light modulator is in high angle, and the magnitude of voltage after rectification unit is higher, positive white LED lamp string and warm white
LED string all normal luminous, now colour temperature is the mixing of two lamp strings；When the light-control knob of controllable silicon dimmer is in low angle,
Magnitude of voltage after rectification unit is relatively low, and positive white LED lamp string can not reach the normal luminous brightness of maximum current, warm white
Constant-current control unit can be with normal work, and warm white LED lamp string can reach that normal luminous value or luminous value are more than positive white light
The positive white LED lamp string of constant-current control unit, now colour temperature state is leading using warm white LED lamp string, and colour temperature is warmed up partially, therefore this
The thyristor regulating photoreduction process of utility model has reached the compatible toning effect of light modulation.
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 structure of the preferred embodiment of the linear constant current driving power supply of the utility model controllable silicon light modulation compatibility toning
Schematic diagram.
Embodiment
In order to be better understood from the technical solution of the utility model, below in conjunction with Figure of description and specific implementation
Mode is described in detail, it should be understood that the specific features in the utility model embodiment and embodiment are to the application skill
The detailed description of art scheme, rather than the restriction to technical scheme, in the case where not conflicting, the utility model is real
Applying the technical characteristic in example and embodiment can be mutually combined.
It is the preferred embodiment of the linear constant current driving power supply of the utility model controllable silicon light modulation compatibility toning with reference to Fig. 1
Structural representation.
The linear constant current driving power supply of controllable silicon light modulation compatibility toning of the present utility model includes：
Rectification unit 100, for the alternating current of external power source to be converted into direct current；
Leakage current control unit 200, is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintenance electric current；
Warm white constant-current control unit 300, is connected with leakage current control unit, for controlling warm white LED lamp string
Electric current；
Positive white light constant-current control unit 400, with leakage current control unit 200 and warm white constant-current control unit 300
Positive white LED lamp string in connection, positive white light constant-current control unit 400 is in parallel with warm white constant-current control unit 300, warm white
The operating voltage of LED string is less than the operating voltage of positive white LED lamp string, and the positive white light constant-current control unit 400 is used to control
Make the total current of positive white LED lamp string and warm white LED lamp string.
In preferred embodiment, the positive white light constant-current control unit 400 includes：Positive white LED lamp string LED B1-Bn, the
One constant current chip U1, first resistor R1, second resistance R2, filter capacitor E1 and 3rd resistor R3,3rd resistor R3 are one and put
Resistance；The warm white constant-current control unit 300 includes：Warm white LED lamp string LED A1-An, the second constant current chip U2 and
4th resistance R4；The leakage current control unit 200 includes：5th resistance R5, the 6th resistance R6, the 3rd constant current chip U3,
Isolating diode D1；The rectification unit 100 includes coiling and insures resistance FR1 and rectifier bridge DB1, and coiling insurance resistance FR1 rises
To the protective effect of whole circuit.
Specifically, rectifier bridge DB1 positive input terminal insures resistance FR1 via the coiling and controllable silicon dimmer is connected
Civil power live wire, rectifier bridge DB1 negative input end connection civil power zero line, rectifier bridge DB1 negative output terminal as it is described systematically, it is whole
Flow bridge DB1 positive output end connection isolating diode D1 positive pole, isolating diode D1 negative pole connect positive white LED lamp string and
The positive pole of warm white LED lamp string, the 3rd constant current chip U3 constant current output port (i.e. OUT terminal mouthful) is via the 6th resistance R6 connections
Rectifier bridge DB1 positive output end, the 3rd constant current chip U3 output ground port (i.e. GND ports) welding system, the 3rd constant current core
Piece U3 constant current sets port (i.e. REXT ports) to be set via the 5th resistance R5 the first constant current chips of connection U1 first constant current
Put port (i.e. REXT1 ports).
3rd resistor R3 is in parallel with filter capacitor E1, the positive pole connection filter capacitor E1 of positive white LED lamp string positive pole, just
The negative pole connection filter capacitor E1 of white LED lamp string negative pole and the first constant current chip U1 two constant current output ports, i.e.,
OUT1 ports and OUT2 ports, the first constant current chip U1 first constant current set port (i.e. REXT1 ports) to pass through the first electricity
With hindering R1 welding systems and second constant current sets port (i.e. REXT2 ports) by second resistance R2 welding systems, the first constant current
Chip U1 two output ground port (i.e. GND1 ports and GND2 ports) welding systems.
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, and the negative pole of warm white LED lamp string connects
The second constant current chip U2 constant current output port (i.e. OUT terminal mouthful) is connect, the second constant current chip U2 constant current sets port (i.e. REXT
Port) via the 4th resistance R4 the second constant current chips of connection U2 output ground port (i.e. GND ports), the second constant current chip U2's
Output ground port connects the first constant current chip U1 two constant current output ports, i.e. OUT1 and OUT2 ports.
The invention also discloses a kind of LED light emission device, including described controllable silicon light modulation compatibility toning is linear
Constant-current driving power supply.
Illustrate operation principle of the present utility model below.
Positive white LED lamp string inside positive white light constant-current control unit 400 is the lamp string of 6000K colour temperatures, warm white constant current
Warm white LED lamp string inside control unit 300 is the lamp string of 3000K colour temperatures.
Leakage current control unit 200 controls the maintenance electric current required for controllable silicon dimmer, and leakage current size is：
I1=U3rext/(R5+R1)
Wherein, U3rext is the 3rd constant current chip U3 reference voltage, and R5, R1 are the 5th resistance R5's and first resistor R1
Resistance value；
First constant current chip U1 control electric current size is：
I2=U1rext1/R1+U1rext2/R2
Second constant current chip U2 control electric current size is：
I3=U2rext/R4
Wherein, U1rext1 and U1rext2 is the first constant current chip U1 REXT1 ports and the benchmark of U1 REXT2 ports
Voltage, R1 and R2 are first resistor R1 and second resistance R2 resistance value；U2rext is the second constant current chip U2 REXT ports
Reference voltage, R4 be the 4th resistance R4 resistance value.
Because the second constant current chip U2 connects with warm white LED lamp string, therefore the electric current of warm white LED lamp string is I3.The
Two constant current chip U2 control electric current flows into the first constant current chip U1 OUT1 and OUT2 ports.Warm white constant-current control unit
300 can be regarded as an entirety, and it is parallel relationship with the positive white LED lamp string inside positive white light constant-current control unit 400, because
The electric current of this positive white LED lamp string is：
I4=I2-I3=U1rext1/R1+U1rext2/R2-U2rext/R4
Because the magnitude of voltage of warm white LED lamp string is less than the magnitude of voltage of positive white LED lamp string.When the tune of controllable silicon dimmer
Light knob is in high angle, and magnitude of voltage of the AC-input voltage after rectification unit is higher, when this magnitude of voltage is higher than positive white light
During LED string, positive white LED lamp string and warm white LED lamp string all normal luminous, now colour temperature is the mixing of two lamp strings, just in vain
Light LED colour contamination temperature 6000K, warm white LED lamp string is 3000K, mixing colour temperature about 4500K.
When the light-control knob of controllable silicon dimmer is in low angle, magnitude of voltage of the AC-input voltage after rectification unit
Less than the magnitude of voltage of positive white LED lamp string, positive white light LEDs can not reach the normal luminous brightness of maximum current.Because warm white
The voltage value of LED string is lower than positive white LED lamp string, therefore warm white constant-current control unit can be warmed up with normal work
White LED lamp string can reach that normal luminous value or luminous value are more than the positive white LED lamp string of positive white light constant-current control unit,
Now colour temperature state is leading using warm white LED lamp string, and colour temperature is warmed up partially.
It can be seen that, system is during controllable silicon light modulation, when controllable silicon light modulation reaches high brightness, and LED lamp lights
Colour temperature be about 4500K mixed light state, when controllable silicon light modulation reaches low-light level, the luminous colour temperature deviation of LED lamp
The state of warm light.Thyristor regulating photoreduction process has reached the function embodiment of the compatible toning of light modulation.
In summary, implement the linear constant current driving power supply of controllable silicon light modulation of the present utility model compatibility toning, with
Lower beneficial effect：Warm white constant-current control unit can voluntarily control the electric current of warm white LED lamp string, positive white light in the utility model
Positive white LED lamp string in constant-current control unit is in parallel with warm white constant-current control unit, based on this, positive white light current constant control list
Member is used for the total current for controlling positive white LED lamp string and warm white LED lamp string, and system architecture of the present utility model simplifies easy-to-use,
Thyristor regulating photoreduction process has reached the compatible toning effect of light modulation.
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. a kind of linear constant current driving power supply of controllable silicon light modulation compatibility toning, it is characterised in that including：
Rectification unit (100), for the alternating current of external power source to be converted into direct current；
Leakage current control unit (200), is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintain electric current；
Warm white constant-current control unit (300), is connected with leakage current control unit, the electricity for controlling warm white LED lamp string
Stream；
Positive white light constant-current control unit (400), with leakage current control unit (200) and warm white constant-current control unit
(300) connect, the positive white LED lamp string and warm white constant-current control unit (300) in positive white light constant-current control unit (400) are simultaneously
Connection, the operating voltage of warm white LED lamp string is less than the operating voltage of positive white LED lamp string, the positive white light constant-current control unit
(400) it is used for the total current for controlling positive white LED lamp string and warm white LED lamp string.
2. the linear constant current driving power supply of controllable silicon light modulation compatibility toning according to claim 1, it is characterised in that described
Positive white light constant-current control unit (400) includes：Positive white LED lamp string, the first constant current chip (U1), first resistor (R1), second
Resistance (R2), filter capacitor (E1) and 3rd resistor (R3),
3rd resistor (R3) is in parallel with filter capacitor (E1), the positive pole of the positive pole connection filter capacitor (E1) of positive white LED lamp string,
The negative pole of the negative pole connection filter capacitor (E1) of positive white LED lamp string and two constant current output ends of the first constant current chip (U1)
Mouthful, first constant current of the first constant current chip (U1) set port by first resistor (R1) welding system and second constant current set
Port is put by second resistance (R2) welding system, the two output ground port welding system of the first constant current chip (U1).
3. the linear constant current driving power supply of controllable silicon light modulation compatibility toning according to claim 2, it is characterised in that described
Warm white constant-current control unit (300) includes：Warm white LED lamp string, the second constant current chip (U2) and the 4th resistance (R4),
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, the negative pole connection of warm white LED lamp string the
The constant current output port of two constant current chips (U2), the constant current of the second constant current chip (U2) sets port to connect via the 4th resistance (R4)
Connect the output ground port of the second constant current chip (U2), the output of the second constant current chip (U2) port connect the first constant current chip
(U1) two constant current output ports.
4. the linear constant current driving power supply of controllable silicon light modulation compatibility toning according to claim 2, it is characterised in that described
Leakage current control unit (200) includes：5th resistance (R5), the 6th resistance (R6), the 3rd constant current chip (U3), two poles of isolation
Manage (D1),
The positive output end of the positive pole connection rectification unit (100) of isolating diode (D1), the negative pole connection of isolating diode (D1)
The positive pole of positive white LED lamp string and the positive pole of warm white LED lamp string, the constant current output port of the 3rd constant current chip (U3) is via the
The positive output end of six resistance (R6) connection rectification unit (100), the output of the 3rd constant current chip (U3) ground port welding system, the
The constant current of three constant current chips (U3) sets port via first constant current of the 5th resistance (R5) the first constant current chip of connection (U1)
Port is set.
5. the linear constant current driving power supply of controllable silicon light modulation compatibility toning according to claim 4, it is characterised in that described
Rectification unit (100) includes coiling insurance resistance (FR1) and rectifier bridge (DB1), and the positive input terminal of rectifier bridge (DB1) is via described
Coiling insurance resistance (FR1) and controllable silicon dimmer connection civil power live wire, negative input end connection city's electrical zero of rectifier bridge (DB1)
Line, the positive pole of the positive output end connection isolating diode (D1) of rectifier bridge (DB1), the negative output terminal of rectifier bridge (DB1) is used as institute
State systematically.
6. a kind of LED light emission device, it is characterised in that compatible including the controllable silicon light modulation as described in claim any one of 1-5
The linear constant current driving power supply of toning.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151040.5U CN206461810U (en) | 2017-02-20 | 2017-02-20 | A kind of the linear constant current driving power supply and LED light emission device of the toning of controllable silicon light modulation compatibility |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720151040.5U CN206461810U (en) | 2017-02-20 | 2017-02-20 | A kind of the linear constant current driving power supply and LED light emission device of the toning of controllable silicon light modulation compatibility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793344A (en) * | 2017-02-20 | 2017-05-31 | 深圳市明微电子股份有限公司 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
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- 2017-02-20 CN CN201720151040.5U patent/CN206461810U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793344A (en) * | 2017-02-20 | 2017-05-31 | 深圳市明微电子股份有限公司 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
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