CN106061029B - A kind of LED down lamp light source integrated circuit and LED down lamp - Google Patents

A kind of LED down lamp light source integrated circuit and LED down lamp Download PDF

Info

Publication number
CN106061029B
CN106061029B CN201610554368.1A CN201610554368A CN106061029B CN 106061029 B CN106061029 B CN 106061029B CN 201610554368 A CN201610554368 A CN 201610554368A CN 106061029 B CN106061029 B CN 106061029B
Authority
CN
China
Prior art keywords
circuit
down lamp
led down
light source
led
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201610554368.1A
Other languages
Chinese (zh)
Other versions
CN106061029A (en
Inventor
何承龙
屈经斌
汪兴海
季超
潘世豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FOSHAN TOPDAY PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Original Assignee
FOSHAN TOPDAY PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by FOSHAN TOPDAY PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd filed Critical FOSHAN TOPDAY PHOTOELECTRIC SCIENCE & TECHNOLOGY Co Ltd
Priority to CN201610554368.1A priority Critical patent/CN106061029B/en
Publication of CN106061029A publication Critical patent/CN106061029A/en
Application granted granted Critical
Publication of CN106061029B publication Critical patent/CN106061029B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light emitting diodes [LEDs]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00Fastening of light sources or lamp holders
    • F21V19/001Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs

Abstract

LED down lamp light source integrated circuit provided by the invention, the DOB schemes integrated using switching power circuit and LED, by the way that metal-oxide-semiconductor, PWM controller and linear voltage-stabilizing circuit are integrated on a control IC, original power circuit is set to eliminate various circuit devcie, drive circuit is set to become very compact, so that LED lamp bead is packaged on same aluminium base simultaneously with drive circuit, BOM costs have greatly been saved, while stable constant current performance, superior power conversion efficiency and dimming effect have also been had both using the LED down lamp light source integrated circuit of switching power circuit.LED down lamp using integrated circuit of the present invention is simple in construction, so that the assembling of LED down lamp is more simple, cost is cheaper, is provided simultaneously with stable constant current performance, superior power conversion efficiency and dimming effect.

Description

A kind of LED down lamp light source integrated circuit and LED down lamp
Technical field
The present invention relates to a kind of LED down lamp light source integrated circuit, and a kind of LED down lamp.
Background technology
At present, existing LED down lamp is mainly made up of thermal component, LED module, drive circuit, expansion tabula rasa etc..Driving electricity Road is individually designed with LED module, and driving circuit section needs one containment vessel of other design to enter the element of drive circuit Row protection, is then connected by wire rod with LED module again, this to design the dosage for not only adding parts, while to assembling Technological requirement is higher, but as continuous compression of the market to cost, this design can not meet the needs of existing market.
With regard to this, occurs a kind of LED down lamp with new departure on the market, this kind of scheme is referred to as DOB, uses DOB side The Down lamp of case is on same aluminium base, because drive circuit is resource integrated with LED light by LED light source and drive circuitry arrangement Set, it is various to be effectively reduced Down lamp part, and assembly technology is complicated, the technical problem of high expensive.Current DOB schemes Driving circuit section is high-voltage linear constant-current circuit, but high-voltage linear constant-current circuit is in efficiency, constant current performance, dimming effect The defects of certain be present in aspect.
The content of the invention
First of the present invention aims to overcome that the deficiencies in the prior art, there is provided a kind of high conversion efficiency, constant current performance Good LED down lamp light source integrated circuit.
In order to achieve the above object, the present invention uses following technical scheme:
A kind of LED down lamp light source integrated circuit, including EMI filter circuit, input rectifying filter circuit, power inductance, control IC and output rectifier and filter processed;The EMI filter circuit is used to filter out the interference signal in exchange input electricity, the EMI The output end of filter circuit is connected with the input of the input rectifying filter circuit, and the input rectifying filter circuit is used for will Alternating current after filtering interference signals is converted to direct current;The control IC includes metal-oxide-semiconductor, PWM controller and linear voltage stabilization electricity Road, one end of the power inductance are connected with the output end of the input rectifying filter circuit, and the other end connects with the metal-oxide-semiconductor Connect, and the power inductance exports concussion voltage to the output rectifier and filter, and the PWM controller is used to control institute Metal-oxide-semiconductor opening and closing is stated, the linear voltage-stabilizing circuit is used to power for the PWM controller.
Preferably, in addition to passive leadage circuit, the input of the passive leadage circuit and input rectifying filter circuit Output end connection, the output end of passive leadage circuit is connected with the input of the power inductance, the passive leadage circuit For maintaining the operating current of light modulator, so as to prevent the controllable silicon in light modulator from surprisingly turning off caused flashing light, improve light modulation Effect.
Preferably, in addition to start-up circuit, the start-up circuit are connected with linear voltage-stabilizing circuit, are linear voltage-stabilizing circuit Power supply.
Further, current sampling resistor is also serially connected with the metal-oxide-semiconductor, the current sampling resistor, which is used to adjust, to be used to adjust Save the electric current of LED lamp bead.
Preferably, the EMI filter circuit, input rectifying filter circuit, power inductance, control IC and output rectification filter Circuit is concentrated with LED lamp bead is encapsulated in formation optical mode group on aluminium base.
Second object of the present invention is overcome the deficiencies in the prior art, there is provided one kind applies the LED down lamp light source collection Into the LED down lamp of circuit, it includes installation portion, lamp body, diffuser plate, and the installation portion is arranged on the lamp body, the lamp body The convex chamber of lower ending opening is provided with, the diffuser plate, which is arranged on the openend, forms installation cavity, and the light source module group is located at In the installation cavity, and it is installed on the convex chamber roof.
Preferably, in order that Down lamp is adapted to fit the mounting hole of various sizes, the installation portion include installation spring and Support, the support are arranged on the outside of the convex chamber, and the installation spring is movably disposed on the support.
The beneficial effects of the present invention are:
1st, drive circuit of the invention is using switching power circuit, and it is by metal-oxide-semiconductor, PWM controller and linear voltage stabilization Circuit is integrated on a control IC, eliminates various circuit devcie, original too fat to move switching power circuit is become very simple It is clean, it can be integrated in LED on same aluminium base, form new DOB schemes, also have while greatly having saved BOM costs Stable constant current performance, superior power conversion efficiency and dimming effect.
2nd, used the light source integrated circuit LED down lamp can omitting external power supply and radiator, make the knot of LED down lamp Structure is simple, so that the assembling of LED down lamp is more simple, cost is cheaper.
Brief description of the drawings
Fig. 1 is the circuit block diagram of LED down lamp light source integrated circuit of the present invention;
Fig. 2 is the circuit theory diagrams of LED down lamp light source integrated circuit of the present invention;
Fig. 3 is the explosive view of the LED down lamp of the present invention;
Fig. 4 is the stereogram of the LED down lamp of the present invention.
Label declaration:
1EMI filter circuits, 2 input rectifying filter circuits, 3 power inductances, 4 control IC, 41PWM controllers, 42 is linear steady Volt circuit, 5 output rectifier and filters, 6 passive leadage circuits, 7 start-up circuits, 8 current sampling resistors, 10 installation portions, 101 peaces Shock mount, 102 supports, the lamp body of nut 103,20,201 convex chambers, 202 openends, 30 diffuser plates, 40 light source module groups.
Embodiment
Referring to Fig. 1 to Fig. 2, a kind of LED down lamp light source integrated circuit provided by the invention, including it is EMI filter circuit 1, defeated Enter current rectifying and wave filtering circuit 2, power inductance 3, control IC4 and output rectifier and filter 5;The EMI filter circuit 1 is used to filter out Interference signal in exchange input electricity, the output end of the EMI filter circuit 1 and the input of the input rectifying filter circuit 2 End connection, the input rectifying filter circuit 2 are used to the alternating current after filtering interference signals being converted to direct current;The control IC4 includes metal-oxide-semiconductor (not shown), PWM controller 41 and linear voltage-stabilizing circuit, one end of the power inductance 3 with it is described defeated Enter the output end connection of current rectifying and wave filtering circuit 2, the other end is connected with the metal-oxide-semiconductor, and the power inductance 3 is to the output The output concussion voltage of current rectifying and wave filtering circuit 5, the PWM controller 41 are used to control the metal-oxide-semiconductor to be opened and closed, the linear voltage stabilization electricity Road is used to power for the PWM controller 41, the EMI filter circuit 1, input rectifying filter circuit 2, power inductance 3, control IC4 and output rectifier and filter 5 are concentrated with LED lamp bead is encapsulated in formation optical mode group on aluminium base.PWM controller 41 makes light source Integrated circuit operation reduces electromagnetic interference, so as to save the common mode inductance of EMI circuits 1 in critical conduction mode.
As a kind of preferable scheme, in addition to passive leadage circuit 6, the input of the passive leadage circuit 6 with it is defeated Entering the output end connection of current rectifying and wave filtering circuit 2, the output end of passive leadage circuit 6 is connected with the input of the power inductance 3, The passive leadage circuit 6 is used for the operating current for maintaining light modulator (not shown), so as to prevent the controllable silicon in light modulator Flashing light caused by unexpected shut-off, improves dimming effect.
As a kind of preferable scheme, start-up circuit 7 is additionally provided with, the start-up circuit 7 is connected with linear voltage-stabilizing circuit, is Linear voltage-stabilizing circuit is powered.
As a kind of preferable scheme, current sampling resistor 8, the current sample electricity are also serially connected with above-mentioned metal-oxide-semiconductor Resistance 8 is used for the electric current for adjusting LED lamp bead.
By the way that metal-oxide-semiconductor, PWM controller 41 and linear voltage-stabilizing circuit are integrated on a control IC, eliminate various Circuit devcie, drive circuit is set to become very compact, so that LED lamp bead is packaged in same aluminium base simultaneously with drive circuit On, greatly save BOM costs.In addition, the drive circuit of the present invention, using switching power circuit, it has stable Constant current performance, superior power conversion efficiency and dimming effect, make the present invention while had both the characteristics of performance is good and cost is low.
Referring to Fig. 3 to Fig. 4, the present invention also provides a kind of LED down lamp of application LED down lamp light source integrated circuit, and it is wrapped Installation portion 10, lamp body 20, diffuser plate 30 are included, the installation portion 10 is arranged on the lamp body 20, and LED down lamp can be by described LED down lamp is fixedly mounted installation portion 10, and the lamp body 20 is provided with the convex chamber 201 of lower ending opening 202, and the diffuser plate 30 is set Put and installation cavity is formed on the openend 202, the light source module group 40 is located in the installation cavity, and is installed in described convex On the roof of chamber 201.
As a kind of preferable scheme, in order that Down lamp is adapted to fit the mounting hole of various sizes, the installation portion 10 Including installation spring 101 and support 102, the support 102 is arranged on the outside of convex chamber 201, and the installation spring 101 can edge Move on the support 102, and be fixed on by nut 103 on support 102.
Used the light source integrated circuit LED down lamp can omitting external power supply and fan hot device, make the structure of LED down lamp Simply, so that the assembling of LED down lamp is more simple, cost is cheaper.
The announcement and teaching of book according to the above description, those skilled in the art in the invention can also be to above-mentioned embodiment party Formula is changed and changed.Therefore, the invention is not limited in embodiment disclosed and described above, to the present invention's Some modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although used in this specification Some specific terms, but these terms are merely for convenience of description, do not form any restrictions to the present invention.

Claims (4)

  1. A kind of 1. LED down lamp light source integrated circuit, it is characterised in that:Including EMI filter circuit, input rectifying filter circuit, work( Rate inductance, control IC and output rectifier and filter;
    The EMI filter circuit is used to filter out the interference signal in exchange input electricity, the output end of the EMI filter circuit and institute The input connection of input rectifying filter circuit is stated, the input rectifying filter circuit is used for the exchange after filtering interference signals Electricity is converted to direct current;The control IC includes metal-oxide-semiconductor, PWM controller and linear voltage-stabilizing circuit, one end of the power inductance It is connected with the output end of the input rectifying filter circuit, the other end is connected with the metal-oxide-semiconductor, and the power inductance is to institute Output rectifier and filter output concussion voltage is stated, the PWM controller is used to control the metal-oxide-semiconductor to be opened and closed, described linear steady Volt circuit is used to power for the PWM controller;
    Also include passive leadage circuit and start-up circuit, input and the input rectifying filter circuit of the passive leadage circuit Output end is connected, and the output end of passive leadage circuit is connected with the input of the power inductance, and the passive leadage circuit is used In the operating current for maintaining light modulator;The start-up circuit is connected with linear voltage-stabilizing circuit, is powered for linear voltage-stabilizing circuit;
    The EMI filter circuit, input rectifying filter circuit, power inductance, control IC, passive leadage circuit, start-up circuit and Output rectifier and filter is concentrated with LED lamp bead is encapsulated in formation optical mode group on aluminium base.
  2. A kind of 2. LED down lamp light source integrated circuit according to claim 1, it is characterised in that:Also concatenated on the metal-oxide-semiconductor There is current sampling resistor, the current sampling resistor is used for the electric current for adjusting LED lamp bead.
  3. A kind of 3. LED down lamp of LED down lamp light source integrated circuit using described in claim 1, it is characterised in that:Also include peace Dress portion, lamp body, diffuser plate, the installation portion are arranged on the lamp body, and the lamp body is provided with the convex chamber of lower ending opening, described Diffuser plate, which is arranged on the openend, forms installation cavity, and the light source module group is located in the installation cavity, and is installed in institute State on convex chamber roof.
  4. A kind of 4. LED down lamp according to claim 3, it is characterised in that:The installation portion includes installation spring and support, The support is arranged on the outside of the convex chamber, and the installation spring is set on the bracket.
CN201610554368.1A 2016-07-12 2016-07-12 A kind of LED down lamp light source integrated circuit and LED down lamp Active CN106061029B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610554368.1A CN106061029B (en) 2016-07-12 2016-07-12 A kind of LED down lamp light source integrated circuit and LED down lamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610554368.1A CN106061029B (en) 2016-07-12 2016-07-12 A kind of LED down lamp light source integrated circuit and LED down lamp

Publications (2)

Publication Number Publication Date
CN106061029A CN106061029A (en) 2016-10-26
CN106061029B true CN106061029B (en) 2018-01-19

Family

ID=57186579

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610554368.1A Active CN106061029B (en) 2016-07-12 2016-07-12 A kind of LED down lamp light source integrated circuit and LED down lamp

Country Status (1)

Country Link
CN (1) CN106061029B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203645889U (en) * 2013-12-26 2014-06-11 张新安 LED lamp driving power supply adopting PFC functional chip
CN203968467U (en) * 2014-07-10 2014-11-26 南京熊猫电子制造有限公司 A kind of LED intelligent lighting control system based on low-power consumption bluetooth
CN104864366A (en) * 2015-06-09 2015-08-26 佛山冠今光电科技有限公司 Tube light spring and tube light using same
CN205812457U (en) * 2016-07-12 2016-12-14 佛山冠今光电科技有限公司 A kind of LED down light source integrated circuit and LED down

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040004446A1 (en) * 2002-07-05 2004-01-08 Hun-Huang Liu Drive circuit for an led lighting apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203645889U (en) * 2013-12-26 2014-06-11 张新安 LED lamp driving power supply adopting PFC functional chip
CN203968467U (en) * 2014-07-10 2014-11-26 南京熊猫电子制造有限公司 A kind of LED intelligent lighting control system based on low-power consumption bluetooth
CN104864366A (en) * 2015-06-09 2015-08-26 佛山冠今光电科技有限公司 Tube light spring and tube light using same
CN205812457U (en) * 2016-07-12 2016-12-14 佛山冠今光电科技有限公司 A kind of LED down light source integrated circuit and LED down

Also Published As

Publication number Publication date
CN106061029A (en) 2016-10-26

Similar Documents

Publication Publication Date Title
CN102014547B (en) Led lighting device and illumination apparatus
KR20140020833A (en) Led driver circuit
US9970640B2 (en) LED fluorescent lamp driving power source and LED fluorescent lamp
CN102644871B (en) Light-emitting diode (LED) ball bulb with insulating hollow radiating outer shell
KR20140027057A (en) Led light comprising an integrated driver
CN106061029B (en) A kind of LED down lamp light source integrated circuit and LED down lamp
CN205812457U (en) A kind of LED down light source integrated circuit and LED down
CN202598198U (en) Lighting emitting diode (LED) ball bulb with housing in insulated hollow thermal design
CN202907285U (en) Constant current LED power supply with temperature compensation function
CN204180333U (en) The multi-channel LED constant-current dimming controller of DC centrally connected power supply
CN203933354U (en) Novel switched power supply
CN206817338U (en) Universal adaptive error correction LED license plate lamps
CN209710378U (en) A kind of invariable power linear constant current LED bulb
CN103277759A (en) Mains supply power-supplying LED integrated light source
CN204948416U (en) LED light emission device and drive circuit thereof
CN106211480B (en) A kind of non-isolated buck high-power LED driving power source
CN206596266U (en) Light-emittingdiode circuit
CN204014168U (en) Led driver
CN203968446U (en) The controllable dimming supply unit of loaded self-adaptive
CN203757402U (en) LED (Light Emitting Diode) bulb lamp with incandescent light bulb dimming effect
CN104008728B (en) A kind of LED display engine
CN209313697U (en) A kind of battery truck DC/DC converter of perfect heat-dissipating
TW201916749A (en) Light-emitting diode driving circuit and lighting apparatus thereof
CN207740757U (en) A kind of integrated optical source device of integral LED polychrome control
WO2012028088A1 (en) Method and apparatus for led lighting

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A LED downlight source integrated circuit and led downlight

Effective date of registration: 20201214

Granted publication date: 20180119

Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch

Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd.

Registration number: Y2020980009231

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20211217

Granted publication date: 20180119

Pledgee: Shunde Guangdong rural commercial bank Limited by Share Ltd. Daliang branch

Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd.

Registration number: Y2020980009231

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Led down lamp light source integrated circuit and led down lamp

Effective date of registration: 20211220

Granted publication date: 20180119

Pledgee: Guangdong Shunde Rural Commercial Bank Co.,Ltd. science and technology innovation sub branch

Pledgor: FOSHAN TOPDAY OPTOELECTRONICS TECHNOLOGY Co.,Ltd.

Registration number: Y2021980015722