CN209572189U - A kind of LED power thyristor regulating optical link - Google Patents
A kind of LED power thyristor regulating optical link Download PDFInfo
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- CN209572189U CN209572189U CN201822203358.0U CN201822203358U CN209572189U CN 209572189 U CN209572189 U CN 209572189U CN 201822203358 U CN201822203358 U CN 201822203358U CN 209572189 U CN209572189 U CN 209572189U
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Abstract
The utility model discloses a kind of LED power thyristor regulating optical links, including controllable silicon dimmer, two output ends of controllable silicon dimmer pass through conducting wire respectively and are connected with fuse F1, transformer T1, one end of capacitor C1 is connected with inductance L1 by conducting wire, the output end of inductance L1 is connected separately with diode D1 by conducting wire, diode D2, the one end of capacitor C1 far from inductance L1 is connected with diode D3 by conducting wire, diode D4, diode D3, the output end of diode D4 has resistance R1 by conductor in parallel, capacitor C2, it is connected between resistance R1 and capacitor C2 by conducting wire, the output end of resistance R1 and capacitor C2 is connected with LED driver circuit by conducting wire, the utility model relates to LED power technical fields.A kind of LED power thyristor regulating optical link has reached controllable silicon light modulation, and the stable effect of electric current is structurally reasonable simple, avoids the occurrence of scintillation, extends service life, work efficiency is high, improves service performance.
Description
Technical field
The utility model relates to LED power technical field, specially a kind of LED power thyristor regulating optical link.
Background technique
In recent years, with the rise of global controllable silicon light modulation LED power illumination market, controllable silicon light modulation LED power supply has
User installation wiring is convenient and Old building has been laid with illuminating line to be transformed into the LED illumination scheme with dimming function simple etc.
Advantage and use it is more and more.Numerous LED manufacturers including China are one after another by thyristor regulating photoelectric source illuminating product
It has been placed in the critical positions of market exploitation, in the silicon-controlled preposition light modulation route of general LED power supply, silicon-controlled route is by one
A trigger pulse route is triggered to a silicon-controlled pulse signal, controlled silicon conducting, but due to needing one after controlled silicon conducting
A maintenance electric current could not turn off, and general LED drive circuit needs to postpone several hundred milliseconds to capacitor charging etc. and arrive after powered up
It just starts to work within 1 second or so, it is silicon-controlled during this to close if do not increased other routes, it is difficult to realize and use controllable silicon light modulation.Mesh
Before, existing LED power thyristor regulating optical link is excessively complicated in the market, and inconvenient to use, electric current is easy moment increase, LED
Electric current is unstable, is easy to appear scintillation, seriously affects service life, can not achieve controllable silicon light modulation, and working efficiency is low, drop
Low service performance.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of LED power thyristor regulating optical link, solves line
It passes by complexity, inconvenient to use, electric current is easy moment increase, and LED current is unstable, is easy to appear scintillation, serious shadow
The problem of sound service life, can not achieve controllable silicon light modulation, and working efficiency is low, reduce service performance.
(2) technical solution
In order to achieve the above object, the utility model is achieved by the following technical programs: a kind of LED power thyristor regulating
Optical link, including controllable silicon dimmer, two output ends of the controllable silicon dimmer pass through conducting wire respectively and are connected with fuse
F1, transformer T1, the fuse F1 output end connect with the input terminal of transformer T1 by conducting wire, the transformer T1's
Output end has capacitor C1 by conductor in parallel, and one end of the capacitor C1 is connected with inductance L1 by conducting wire, the inductance L1's
Output end is connected separately with diode D1 by conducting wire, diode D2, the capacitor C1 pass through conducting wire far from one end of inductance L1
It is connected with diode D3, diode D4, passes through conducting wire between the diode D3, diode D4 and diode D1, diode D2
Parallel connection, the diode D3, diode D4 output end by conductor in parallel have resistance R1, capacitor C2, the resistance R1 and electricity
Holding and is connected between C2 by conducting wire, the output end of the resistance R1 and capacitor C2 are connected with LED driver circuit by conducting wire,
The output end of the LED driver circuit is connected with LED light by conducting wire.
Preferably, the input terminal of the controllable silicon dimmer passes through wire connecting power.
Preferably, the LED driver circuit include exchange input stage, output end, output voltage feedback end, according to output electricity
The control loop of pressure feedback end control power tube duty cycle of switching and the power connecting with control loop, further include the first benchmark electricity
The control terminal of pressure, LDO and the adjustment pipe being connected between power tube and load LED, the adjustment pipe is connect with LDO output end,
Two input terminals of the LDO are separately connected common end and first reference voltage of the adjustment pipe with CS sampling resistor；Further include with
The common end of the output capacitance of output end connection, the adjustment pipe and load LED are as output voltage feedback end, the control ring
Road includes logic drive circuit, PWM comparator, error amplifier, the second reference voltage and alternating current sampling circuit, and the error is put
Two input terminals of big device are separately connected the second reference voltage and output voltage feedback end, two inputs of the PWM comparator
End is separately connected the output end of error amplifier and alternating current sampling circuit, and the output end of the PWM comparator connects logical drive
The output end of circuit, the logic drive circuit connects power tube control terminal.
Preferably, the exchange input stage is the full bridge rectifier of four diodes composition.
(3) beneficial effect
The utility model provides a kind of LED power thyristor regulating optical link.Have it is following the utility model has the advantages that
(1), the LED power thyristor regulating optical link passes through conducting wire by two output ends of controllable silicon dimmer respectively
It is connected with fuse F1, transformer T1, the output end of transformer T1 has capacitor C1 by conductor in parallel, and one end of capacitor C1 passes through
Conducting wire is connected with inductance L1, and the output end of inductance L1 is connected separately with diode D1, diode D2 by conducting wire, and capacitor C1 is separate
One end of inductance L1 is connected with diode D3, diode D4 by conducting wire, diode D3, diode D4 output end pass through conducting wire
It is parallel with resistance R1, capacitor C2, is connected between resistance R1 and capacitor C2 by conducting wire, the output end of resistance R1 and capacitor C2 are logical
It crosses conducting wire and is connected with LED driver circuit, reached controllable silicon light modulation, the stable effect of electric current is structurally reasonable simple, user
Just, having can be achieved controllable silicon light modulation, and the stable effect of electric current avoids the occurrence of scintillation, extend service life, work effect
Rate is high, improves service performance.
Detailed description of the invention
Fig. 1 is the utility model circuit structure diagram；
Fig. 2 is LED driver circuit embodiment electrical block diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution referring to FIG. 1-2: a kind of LED power thyristor regulating optical link, including
The input terminal of controllable silicon dimmer, controllable silicon dimmer passes through wire connecting power, two output ends point of controllable silicon dimmer
Fuse F1, transformer T1 are not connected with by conducting wire, fuse F1 has protective effect, and the output end of fuse F1 passes through
Conducting wire is connect with the input terminal of transformer T1, and the output end of transformer T1 has capacitor C1, one end of capacitor C1 by conductor in parallel
It is connected with inductance L1 by conducting wire, the output end of inductance L1 is connected separately with diode D1, diode D2, capacitor by conducting wire
The one end of C1 far from inductance L1 is connected with diode D3, diode D4, diode D3, diode D4 and diode by conducting wire
By conductor in parallel between D1, diode D2, diode D3, diode D4 output end have resistance R1, electricity by conductor in parallel
Hold C2, connected between resistance R1 and capacitor C2 by conducting wire, the output end of resistance R1 and capacitor C2 are connected with LED by conducting wire and drive
Moving-wire road, LED driver circuit include exchange input stage, output end, output voltage feedback end, according to output voltage feedback end control
The control loop of power tube duty cycle of switching and the power connecting with control loop, exchange input stage are four diode compositions
Full bridge rectifier further includes the first reference voltage, LDO and is connected to power tube and loads the adjustment pipe between LED, adjustment
The control terminal of pipe is connect with LDO output end, two input terminals of LDO be separately connected adjustment pipe and the common end of CS sampling resistor and
First reference voltage；It further include the output capacitance being connect with output end, the common end of adjustment pipe and load LED are as output voltage
Feedback end, control loop include logic drive circuit, PWM comparator, error amplifier, the second reference voltage and AC sampling electricity
Road, two input terminals of error amplifier are separately connected the second reference voltage and output voltage feedback end, and two of PWM comparator
Input terminal is separately connected the output end of error amplifier and alternating current sampling circuit, and the output end of PWM comparator connects logical drive
The output end of circuit, logic drive circuit connects power tube control terminal, and the output end of LED driver circuit is connected with by conducting wire
LED light.
In use, the input terminal of controllable silicon dimmer passes through wire connecting power, two output ends of controllable silicon dimmer
Fuse F1, transformer T1 are connected with by conducting wire respectively, the output end of fuse F1 passes through the input of conducting wire and transformer T1
End connection, the output end of transformer T1 have capacitor C1 by conductor in parallel, and one end of capacitor C1 is connected with inductance L1 by conducting wire,
The output end of inductance L1 is connected separately with diode D1, diode D2 by conducting wire, and capacitor C1 passes through far from one end of inductance L1
Conducting wire is connected with diode D3, diode D4, passes through conducting wire between diode D3, diode D4 and diode D1, diode D2
Parallel connection, diode D3, diode D4 output end have resistance R1, capacitor C2 by conductor in parallel, between resistance R1 and capacitor C2
Connected by conducting wire, the output end of resistance R1 and capacitor C2 is connected with LED driver circuit by conducting wire, LED driver circuit it is defeated
Outlet is connected with LED light by conducting wire.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or equipment for including element ".
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of LED power thyristor regulating optical link, including controllable silicon dimmer, it is characterised in that: the controllable silicon dimmer
Two output ends pass through conducting wire respectively and be connected with fuse F1, transformer T1, the output end of the fuse F1 passes through conducting wire
It is connect with the input terminal of transformer T1, the output end of the transformer T1 has capacitor C1 by conductor in parallel, the capacitor C1's
One end is connected with inductance L1 by conducting wire, and the output end of the inductance L1 is connected separately with diode D1, diode by conducting wire
D2, the described one end of capacitor C1 far from inductance L1 are connected with diode D3, diode D4, the diode D3, two by conducting wire
By conductor in parallel between pole pipe D4 and diode D1, diode D2, the diode D3, diode D4 output end by leading
Line is parallel with resistance R1, capacitor C2, is connected between the resistance R1 and capacitor C2 by conducting wire, the resistance R1 and capacitor C2's
Output end is connected with LED driver circuit by conducting wire, and the output end of the LED driver circuit is connected with LED light by conducting wire.
2. a kind of LED power thyristor regulating optical link according to claim 1, it is characterised in that: the controllable silicon light modulation
The input terminal of device passes through wire connecting power.
3. a kind of LED power thyristor regulating optical link according to claim 1, it is characterised in that: the LED driver circuit
Including exchange input stage, output end, output voltage feedback end, power tube duty cycle of switching controlled according to output voltage feedback end
Control loop and the power connecting with control loop further include the first reference voltage, LDO and are connected to power tube and load LED
Between adjustment pipe, it is described adjustment pipe control terminal connect with LDO output end, two input terminals of the LDO are separately connected tune
The common end and the first reference voltage of homogeneous tube and CS sampling resistor；It further include the output capacitance being connect with output end, the adjustment
Pipe with load LED common end as output voltage feedback end, the control loop include logic drive circuit, PWM comparator,
Two input terminals of error amplifier, the second reference voltage and alternating current sampling circuit, the error amplifier are separately connected second
Reference voltage and output voltage feedback end, two input terminals of the PWM comparator are separately connected error amplifier and adopt with exchanging
The output end of the output end of sample circuit, the PWM comparator connects logic drive circuit, the output end of the logic drive circuit
Connect power tube control terminal.
4. a kind of LED power thyristor regulating optical link according to claim 3, it is characterised in that: the exchange input stage
For the full bridge rectifier of four diodes composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203358.0U CN209572189U (en) | 2018-12-26 | 2018-12-26 | A kind of LED power thyristor regulating optical link |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822203358.0U CN209572189U (en) | 2018-12-26 | 2018-12-26 | A kind of LED power thyristor regulating optical link |
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| Publication Number | Publication Date |
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| CN209572189U true CN209572189U (en) | 2019-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822203358.0U Active CN209572189U (en) | 2018-12-26 | 2018-12-26 | A kind of LED power thyristor regulating optical link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11943853B2 (en) * | 2021-12-29 | 2024-03-26 | Shanghai Bright Power Semiconductor Co., Ltd. | Full voltage sampling circuit, driving chip, LED driving circuit and sampling method |
-
2018
- 2018-12-26 CN CN201822203358.0U patent/CN209572189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11943853B2 (en) * | 2021-12-29 | 2024-03-26 | Shanghai Bright Power Semiconductor Co., Ltd. | Full voltage sampling circuit, driving chip, LED driving circuit and sampling method |
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