CN108337780A - A kind of intelligent drive circuit and LED lamp - Google Patents
A kind of intelligent drive circuit and LED lamp Download PDFInfo
- Publication number
- CN108337780A CN108337780A CN201810274997.8A CN201810274997A CN108337780A CN 108337780 A CN108337780 A CN 108337780A CN 201810274997 A CN201810274997 A CN 201810274997A CN 108337780 A CN108337780 A CN 108337780A
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- 238000013461 design Methods 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims description 20
- 230000033228 biological regulation Effects 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 4
- 238000002955 isolation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 6
- 230000003287 optical effect Effects 0.000 abstract description 4
- 238000012827 research and development Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 241001465382 Physalis alkekengi Species 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
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- 230000007812 deficiency Effects 0.000 description 1
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- 230000003760 hair shine Effects 0.000 description 1
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- 238000004020 luminiscence type Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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Abstract
The present invention relates to a kind of intelligent drive circuits, including power module, control circuit, voltage and current circuit for detecting and LED load；The power module provides stable energy supply for the LED load and entire power supply loop；The control circuit carries out effective Current Voltage PWM adjusting controls according to the Real-time Feedback signal of the voltage and current circuit for detecting to output；The voltage and current circuit for detecting is used to carry out effective real-time control to the voltage signal that LED load returns；The present invention passes through rational circuit design, so that the driving circuit is detected automatically and matches the optical module that LED load is connected, light source is set to work normally, realize a kind of driver with regard to compatible various parts, it avoids the research and development of enterprise from wasting and maintain difficulty height, while avoiding the waste of vast resources.
Description
Technical field
The invention belongs to circuit field more particularly to a kind of intelligent drive circuit and LED lamps.
Background technology
Currently, LED light is widely used in lighting area, since the driving power of LED light usually requires low pressure, often
A LED light can all be configured with one for realizing the LED driver of power source conversion function, power grid of the LED driver for that will input
Voltage is converted to direct current supply LED light.
But existing LED in the market, the commonality of driver is especially low, is substantially specification and carries a kind of drive
Dynamic device, a kind of driver can not be compatible with various spare parts, and such situation also causes the product specification of driving power producer to be got over
Carry out more, LED enterprises research and development waste and maintenance difficulty is high；In addition, the driver of existing market is when one of member
Device failure must abandon 98% or more and still fall within intact LED lamp, and such LED illumination product causes largely
The wasting of resources.
Invention content
In view of this, in view of the deficiencies of the prior art, the present invention intends to provide a kind of intelligent drive circuit and LED light
Tool, can effectively solve the problem that problems of the prior art.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of intelligent drive circuit, including power module, control circuit, voltage and current circuit for detecting and LED load；
The power module uses isolation design, is connected with the control circuit, is the LED load and entire power supply loop
Stable energy supply is provided；
The control circuit uses the reduction voltage circuit of chopper-type, is connected with the LED load, is detected according to the voltage and current
The Real-time Feedback signal of circuit carries out effective Current Voltage PWM adjusting controls to output；
The input terminal of the voltage and current circuit for detecting is connected with the LED load, and output end is connected with the control circuit
It connects, the voltage signal for being returned to LED load carries out effective real-time control.
Further, the power module is equipped with transformer T1 and chip IC 1, when IC1 is connected, the transformer T1
Main winding and chip IC 1 form major loop, to carry out energy stores to transformer T1；When IC1 ends, the transformer
The VCC of T1 is become to release energy for electric winding, main output winding, secondary output winding by original energy storage, is carried out to entire circuit
Energy supply.
Further, the control circuit is equipped with the decompression control loop circuit of chopper-type, for carrying out PWM to different loads
Regulation and control export load voltage corresponding with different loads and electric current.
Further, the voltage and current circuit for detecting includes resistance R3, R6, R7, R8 and chip IC 2；When output not
It when connecing load, is read back voltage by resistance R3 and R7, and be compared with IC2 inner setting values, to judge that band carries situation；When
When output connects load, constant regulation and control is carried out to output current by R6 and R8, then IC2 is fed back to by R3 and R7 partial pressures, it is allowed to sentence
The size of fixed load.
Further, the VCC is used to provide IC1 stable VCC operating voltages for electric winding.
A kind of LED lamp is equipped with intelligent drive circuit described above.
Beneficial effects of the present invention are so that the driving circuit is detected and is matched automatically by rational circuit design
The optical module that LED load is connected, makes light source work normally, and realizes that a kind of driver with regard to compatible various parts, avoids
The research and development of enterprise waste and maintenance difficulty is high, while avoiding the waste of vast resources.
Description of the drawings
Fig. 1 is a kind of function structure chart of intelligent drive circuit of the present invention；
Fig. 2 is a kind of circuit diagram of intelligent drive circuit of the present invention.
Specific implementation mode
Below in conjunction with attached drawing and specific implementation mode, the present invention is described further：
As shown in Figure 1, a kind of function structure chart of intelligent drive circuit, including power module 1, control circuit 2, voltage/current
Circuit for detecting 3 and LED load 4；
The power module uses isolation design, is connected with the control circuit, is the LED load and entire power supply loop
Stable energy supply is provided；
The control circuit uses the reduction voltage circuit of chopper-type, is connected with the LED load, is detected according to the voltage and current
The Real-time Feedback signal of circuit carries out effective Current Voltage PWM adjusting controls to output；
The input terminal of the voltage and current circuit for detecting is connected with the LED load, and output end is connected with the control circuit
It connects, the voltage signal for being returned to LED load carries out effective real-time control.
As shown in Fig. 2, a kind of circuit diagram of intelligent drive circuit, including power module 1, control circuit 2, voltage/
Current-sensing circuit 3 and LED load 4；
The operation principle of the power module is：
AC AC powers are after the access of L, N line, after carrying out overcurrent and overvoltage protection by fuse F1 and varistor R18, then
Common mode inductance T2 is filtered by EMI, rectification is carried out by the current rectifying and wave filtering circuit that diode D3, D4, D9, D10 and capacitance C4 are formed
Filtering generates 1.414 timesDC voltage provides voltage support for later stage circuit；
This DC voltage acts on the main winding and ground terminal of transformer T1, and IC1 is waited for open to form home loop, to be transformation
Device T1 main windings carry out energy conversion and prepare；
By resistance R16, the start-up circuit of R17, R13 composition charges to capacitance C6, when charging reaches the electricity of unlatching IC1 enough
When pressure, IC1 opens work, and transformer T1 main windings form major loop with MOS built in IC1 to ground, to be carried out to transformer T1
The storage of energy；
When transformer T1 energy storages to setting value when, the MOS built in IC1 becomes ending from being connected, transformer T1 potentials by
Originally it is upper just, it is lower it is negative become it is lower just, upper negative, the other three winding of transformer T1 at this time：IC1 VCC are for electric winding, main output
Winding, secondary output winding, also accordingly are become to release energy by original backward stop energy storage, and energy confession is carried out to respective circuit
It answers.
Above-mentioned IC1 VCC provide stabilization after diode D8 and the rectification of capacitance C6 High frequency filters for electric winding to IC1
VCC operating voltages, make IC1 can be with steady operation, can be preferably to entire power supply cyclic system real-time monitoring；Main output winding
After diode D1 and capacitance C9 filtering high-frequency rectifiers energy supply is provided to LED module circuit below；Secondary output winding is through two
After pole pipe D5 and capacitance C5 filtering high-frequency rectifiers, voltage on the one hand is provided to optocoupler U1, on the one hand provides operating voltage for IC2.
Optocoupler U1, voltage-stabiliser tube U2, resistance R10, R15 form the voltage protection circuit of this power supply part, ensure output voltage
Stabilization；When the output voltage is too high, resistance R15 terminal voltages are with rising, when resistance R15 terminal voltages reach opening for voltage-stabiliser tube U2
Gate value is opened, then the luminous component inside optocoupler U1 shines, and the optical signal conducting that its corresponding light receiving component receives makes IC1's
Compensation circuit acts, and causes the output energy dropoff of IC1, to allow output voltage to decline, output energy that is on the contrary then increasing IC1
Amount, makes output voltage reach desired value.
The control circuit and the operation principle of voltage/current circuit for detecting are：
Triode Q1, Q2, resistance R2, R5, R14, IC2, diode D2, D6, inductance L1 and capacitance C3 form chopper-type
Decompression control loop circuit can carry out PWM regulation and control to different loads, export corresponding load voltage and electric current.
Its PWM principle of adjustment and control is：When exporting LED+ and LED- and not connecing load, read back voltage and IC2 by resistance R3, R7
Inner setting value is compared, to judge that band carries situation；When output LED+ and LED- connects load, resistance R6, R8 are first passed through
To carry out constant regulation and control to output current, load is made to export constant low current；IC2 is fed back to by resistance R3, R7 partial pressure again, is allowed
It judges the size of load, to the set correspondence load current of output, can preferably protect the service life of LED module.This
Circuit can be accomplished backward compatible in specified loading range, accurately electric current constant control be carried out to load, so as to more preferable
Raising load service life.
The LED load that the driving circuit is connected is light emitting module, as long as within the maximum power of the light emitting module,
This driving circuit energy adjust automatically goes out the required specification of light source module, as long as it is connected, light source at once can be just
Often work.The light emitting module of connection is broadly divided into two kinds of situations：1. light emitting module is without current limiting component, when being combined into each rule
When the lamps and lanterns of lattice, this just needs connected light emitting module to have a necessary condition：The light emitting module of different capacity has obviously
Pressure difference and high-power light emitting module electric current it is also all corresponding big or corresponding small, in such a situa-tion, driver can be fast
Speed identification light emitting module simultaneously works normally；When the luminous no apparent pressure drop connected, driver is not yet cannot
It identifies and works together with light emitting module, it is pre- that the reached effect that only combines may not be able to reach user institute
The effect of phase；2. when luminescence component current limiting component, such case can make whole system work rapidly and sensitively, as long as
The light emitting module power bracket connected is within the maximum power that driver carries, so that it may be combined into it is a series of can be normal
The lamps and lanterns of work.
A kind of LED lamp is equipped with intelligent drive circuit described above.
The present invention enables the driving circuit to detect automatically and matches LED load to be connected by rational circuit design
Optical module, make light source that can work normally at once, realize that a kind of driver with regard to compatible various parts, avoids enterprise
Research and development waste and maintenance difficulty it is high, while avoiding the waste of vast resources.
Finally it should be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；For
For those skilled in the art, it can still modify to the technical solution recorded in previous embodiment,
Equivalent replacement either is carried out to which part or all technical features；And these modifications or replacements, do not make relevant art
The essence of scheme is detached from protection scope of the present invention.
Claims (6)
1. a kind of intelligent drive circuit, including power module, control circuit, voltage and current circuit for detecting and LED load；It is special
Sign is：
The power module uses isolation design, is connected with the control circuit, is the LED load and entire power supply loop
Stable energy supply is provided；
The control circuit uses the reduction voltage circuit of chopper-type, is connected with the LED load, is detected according to the voltage and current
The Real-time Feedback signal of circuit carries out effective Current Voltage PWM adjusting controls to output；
The input terminal of the voltage and current circuit for detecting is connected with the LED load, and output end is connected with the control circuit
It connects, the voltage signal for being returned to LED load carries out effective real-time control.
2. a kind of intelligent drive circuit as described in claim 1, it is characterised in that：The power module be equipped with transformer T1 with
And chip IC 1, when IC1 is connected, main winding and the chip IC 1 of the transformer T1 form major loop, to transformer T1
Carry out energy stores；When IC1 ends, the VCC of the transformer T1 is for electric winding, main output winding, secondary output winding by original
The energy storage come becomes to release energy, and energy supply is carried out to entire circuit.
3. a kind of intelligent drive circuit as described in claim 1, it is characterised in that：The control circuit is equipped with the drop of chopper-type
Voltage-controlled loop circuit processed exports load voltage corresponding with different loads and electric current for carrying out PWM regulation and control to different loads.
4. a kind of intelligent drive circuit as described in claim 1, it is characterised in that：The voltage and current circuit for detecting includes electricity
Hinder R3, R6, R7, R8 and chip IC 2；When output does not connect load, read back voltage by resistance R3 and R7, and with inside IC2
Setting value is compared, to judge that band carries situation；When output connects load, constant tune is carried out to output current by R6 and R8
Control, then IC2 is fed back to by R3 and R7 partial pressures, the size for allowing its judgement to load.
5. a kind of intelligent drive circuit as claimed in claim 2, it is characterised in that：The VCC is for electric winding for being carried to IC1
For stable VCC operating voltages.
6. a kind of LED lamp, it is characterised in that：Equipped with the intelligent drive circuit described in claim 1 to 5 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274997.8A CN108337780A (en) | 2018-03-30 | 2018-03-30 | A kind of intelligent drive circuit and LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810274997.8A CN108337780A (en) | 2018-03-30 | 2018-03-30 | A kind of intelligent drive circuit and LED lamp |
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| Publication Number | Publication Date |
|---|---|
| CN108337780A true CN108337780A (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810274997.8A Pending CN108337780A (en) | 2018-03-30 | 2018-03-30 | A kind of intelligent drive circuit and LED lamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918447A (en) * | 2019-05-07 | 2020-11-10 | 益力半导体股份有限公司 | Adaptive dimming driving system |
| CN113365394A (en) * | 2021-08-11 | 2021-09-07 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
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| CN202396030U (en) * | 2011-10-19 | 2012-08-22 | 深圳市菱晟科技有限公司 | LED driving device, battery charger and driving control circuit |
| US20140125252A1 (en) * | 2012-11-02 | 2014-05-08 | RAB Lighting Inc. | Dimming for constant current led driver circuit |
| EP2914068A1 (en) * | 2014-02-28 | 2015-09-02 | Zhejiang Sungiant arts and crafts Co., Ltd. | Electronic transformer-controlled two-wire two-way LED (light-emitting diode) lamp string |
| KR101590045B1 (en) * | 2015-05-27 | 2016-01-29 | (주)비츠로 | Static Current Regulation Apparatus for Light Emitting Diode Lamp |
| CN106211436A (en) * | 2016-07-18 | 2016-12-07 | 成都翰道科技有限公司 | A kind of many processing of circuit type LED power supply of stable performance |
| CN206061229U (en) * | 2016-09-22 | 2017-03-29 | 厦门通士达照明有限公司 | Separable intelligent driving lamp |
| CN107155238A (en) * | 2017-06-13 | 2017-09-12 | 深圳民爆光电技术有限公司 | A kind of multiple-channel output constant current driver circuit for LED and driving method |
| CN207939801U (en) * | 2018-03-30 | 2018-10-02 | 厦门通士达照明有限公司 | a kind of intelligent drive circuit and LED lamp |
-
2018
- 2018-03-30 CN CN201810274997.8A patent/CN108337780A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202396030U (en) * | 2011-10-19 | 2012-08-22 | 深圳市菱晟科技有限公司 | LED driving device, battery charger and driving control circuit |
| US20140125252A1 (en) * | 2012-11-02 | 2014-05-08 | RAB Lighting Inc. | Dimming for constant current led driver circuit |
| EP2914068A1 (en) * | 2014-02-28 | 2015-09-02 | Zhejiang Sungiant arts and crafts Co., Ltd. | Electronic transformer-controlled two-wire two-way LED (light-emitting diode) lamp string |
| KR101590045B1 (en) * | 2015-05-27 | 2016-01-29 | (주)비츠로 | Static Current Regulation Apparatus for Light Emitting Diode Lamp |
| CN106211436A (en) * | 2016-07-18 | 2016-12-07 | 成都翰道科技有限公司 | A kind of many processing of circuit type LED power supply of stable performance |
| CN206061229U (en) * | 2016-09-22 | 2017-03-29 | 厦门通士达照明有限公司 | Separable intelligent driving lamp |
| CN107155238A (en) * | 2017-06-13 | 2017-09-12 | 深圳民爆光电技术有限公司 | A kind of multiple-channel output constant current driver circuit for LED and driving method |
| CN207939801U (en) * | 2018-03-30 | 2018-10-02 | 厦门通士达照明有限公司 | a kind of intelligent drive circuit and LED lamp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111918447A (en) * | 2019-05-07 | 2020-11-10 | 益力半导体股份有限公司 | Adaptive dimming driving system |
| CN113365394A (en) * | 2021-08-11 | 2021-09-07 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
| CN113365394B (en) * | 2021-08-11 | 2021-12-21 | 北京金晟达生物电子科技有限公司 | LED module detection device, control terminal and signal interaction system |
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