CN207573661U - Non-isolated New LED driving circuit and LED light - Google Patents
Non-isolated New LED driving circuit and LED light Download PDFInfo
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- CN207573661U CN207573661U CN201721130383.XU CN201721130383U CN207573661U CN 207573661 U CN207573661 U CN 207573661U CN 201721130383 U CN201721130383 U CN 201721130383U CN 207573661 U CN207573661 U CN 207573661U
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- capacitance
- diode
- rectifier bridge
- isolated
- led light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The utility model is related to a kind of non-isolated New LED driving circuit and LED light, include lampshade, the circuit board being installed in lampshade and LED light, have non-isolated New LED driving circuit on circuit board；Non-isolated New LED driving circuit includes rectifier bridge, the first capacitance, diode, inductance, the second capacitance, non-isolated constant-current driven chip；Diode is parallel to after first capacity earth, the second capacitance and inductance series connection, LED light is connected between the first drive output, the second drive output；Diode is connect with non-isolated constant-current driven chip, and Drain pins connection diode, CS pins pass through third capacity earth by resistance eutral grounding, VDD pins；Thereby, pass through the design to driving circuit output signal duty ratio and frequency, so that inductance parameters used become smaller, circuit element can be made to concentrate in patch to the circuit board in existing LED light outer cover, full chip machinery metaplasia production is realized, meanwhile, space becomes larger in lampshade, improve heat dissipation performance, so as to extend the service life of LED light.
Description
Technical field
The utility model is related to LED drive circuit field technology, refer in particular to a kind of non-isolated New LED driving circuit and
LED light.
Background technology
At present in LED illumination in the market, based on isolation drive power supply.Existing LED drive circuit structure is complicated, used
The component sizes such as inductance are big, it is difficult to focus in the circuit board in existing LED light outer cover, be unfavorable for producing and processing, while also lead
It causes heat dissipation difficult, shortens the service life of LED light.
Utility model content
Existing deficiency, main purpose are to provide a kind of non-isolated novel the utility model for the above-mentioned prior art
LED drive circuit and LED light pass through the design to driving circuit output signal duty ratio and frequency so that inductance ginseng used
Number becomes smaller, and circuit element can be made to concentrate in patch to the circuit board in existing LED light outer cover, realize full chip machinery metaplasia
Production, meanwhile, space becomes larger in lampshade, improves heat dissipation performance, so as to extend the service life of LED light.
To realize above-mentioned purpose, the utility model adopts the following technical scheme that：
A kind of non-isolated New LED driving circuit, including rectifier bridge, the first capacitance, diode, inductance, the second capacitance, non-
Constant-current driven chip is isolated；The rectifier bridge has first input end, the second input terminal, the first output terminal and the second output
End, the first input end of the rectifier bridge, the second input terminal are connect respectively with firewire, zero curve；First output of the rectifier bridge
The cathode respectively with one end of the first capacitance, diode is held to connect, the second output terminal ground connection of the rectifier bridge；First electricity
The both ends of diode, the both ends of second capacitance are parallel to after the other end ground connection of appearance, second capacitance and inductance series connection
Respectively the first drive output, the second drive output；The anode of the diode is connect with non-isolated constant-current driven chip,
The non-isolated constant-current driven chip is equipped with Drain pins, VDD pins and CS pins, and the Drain pins are connected to two
The anode of pole pipe, the CS pins pass through third capacity earth by resistance eutral grounding, the VDD pins.
As a preferred embodiment：The inductance is chip inductor.
As a preferred embodiment：The resistance and third capacitance use patch type.
As a preferred embodiment：First capacitance and the second capacitance are electrolytic capacitor；First capacitance is just
Pole is connect with the first output terminal of aforementioned rectifier bridge, the cathode ground connection of the first capacitance；The anode and diode of second capacitance
Cathode connection, the cathode and inductance connection of second capacitance.
A kind of LED light includes lampshade, the circuit board being installed in lampshade and the LED light being connected on circuit board, described
There is non-isolated New LED driving circuit on circuit board；
The non-isolated New LED driving circuit includes rectifier bridge, the first capacitance, diode, inductance, the second capacitance, non-
Constant-current driven chip is isolated；The rectifier bridge has first input end, the second input terminal, the first output terminal and the second output
End, the first input end of the rectifier bridge, the second input terminal are connect respectively with firewire, zero curve；First output of the rectifier bridge
The cathode respectively with one end of the first capacitance, diode is held to connect, the second output terminal ground connection of the rectifier bridge；First electricity
The both ends of diode, the both ends of second capacitance are parallel to after the other end ground connection of appearance, second capacitance and inductance series connection
Respectively the first drive output, the second drive output, the LED light be connected to the first drive output, second driving it is defeated
Between outlet；The anode of the diode is connect with non-isolated constant-current driven chip, is set on the non-isolated constant-current driven chip
There are Drain pins, VDD pins and CS pins, the Drain pins are connected to the anode of diode, and the CS pins pass through
Resistance eutral grounding, the VDD pins pass through third capacity earth.
The utility model has clear advantage and advantageous effect compared with prior art, specifically：By to driving
The design of circuit output signal duty ratio and frequency so that inductance parameters used become smaller, and can make circuit element that patch be concentrated to arrive
In circuit board in existing LED light outer cover, full chip machinery metaplasia production is realized, meanwhile, space becomes larger in lampshade, improves heat dissipation
Performance, so as to extend the service life of LED light.
Description of the drawings
Fig. 1 is the circuit connection diagram of the embodiment of the utility model.
Drawing reference numeral explanation：
10th, rectifier bridge 20, the first capacitance
30th, diode 40, inductance
50th, the second capacitance 60, non-isolated constant-current driven chip
70th, LED light 80, resistance
90th, third capacitance.
Specific embodiment
1 the utility model is further described with specific embodiment below in conjunction with the accompanying drawings.A kind of LED light, includes
Lampshade, the circuit board being installed in lampshade and the LED light being connected on circuit board 70 have on the circuit board non-isolated novel
LED drive circuit, wherein：
A kind of non-isolated New LED driving circuit, including rectifier bridge 10, the first capacitance 20, diode 30, inductance 40,
Two capacitances 50, non-isolated constant-current driven chip 60.
The rectifier bridge 10 has first input end, the second input terminal, the first output terminal and second output terminal, described whole
First input end, the second input terminal of stream bridge 10 are connect respectively with firewire L, zero curve N, the first output terminal point of the rectifier bridge 10
Cathode not with one end of the first capacitance 20, diode 30 is connect, the second output terminal ground connection of the rectifier bridge 10, and described first
The other end ground connection of capacitance 20, second capacitance 50 and inductance 40 are parallel to the both ends of the first capacitance 20 after connecting, and described the
The both ends of two capacitances 50 are respectively the first drive output, the second drive output, and it is defeated that the LED light 70 is connected to the first driving
Between outlet, the second drive output.
In the present embodiment, the inductance 40 is chip inductor, and 20 and second capacitance 50 of the first capacitance is electrolysis
Capacitance, the anode of first capacitance 20 are connect with the first output terminal of aforementioned rectifier bridge 10, the cathode ground connection of the first capacitance 20；
The anode of second capacitance 50 is connect with the cathode of diode 30, and the cathode of second capacitance 50 is connect with inductance 40；Institute
The anode for stating diode 30 is connect with non-isolated constant-current driven chip 60, and the non-isolated constant-current driven chip 60 is equipped with
Drain pins, VDD pins and CS pins, the Drain pins are connected to the anode of diode 30, and the CS pins pass through
Resistance 80 is grounded, and the VDD pins are grounded by third capacitance 90, in the present embodiment, the resistance 80 and third capacitance 90
Use patch type.
The utility model designing points are：Pass through the design to driving circuit output signal duty ratio and frequency so that
Inductance parameters used become smaller, and circuit element can be made to concentrate in patch to the circuit board in existing LED light outer cover, realize full patch
Piece mechanization production, meanwhile, space becomes larger in lampshade, improves heat dissipation performance, so as to extend the service life of LED light.
The above is only the utility model preferred embodiment, not the technical scope of the utility model is appointed
What is limited, therefore every any trickle amendment, equivalent variations made according to the technical essence of the utility model to above example
With modification, in the range of still falling within technical solutions of the utility model.
Claims (8)
1. a kind of non-isolated New LED driving circuit, it is characterised in that：Including rectifier bridge, the first capacitance, diode, inductance,
Two capacitances, non-isolated constant-current driven chip；The rectifier bridge have first input end, the second input terminal, the first output terminal and
Second output terminal, the first input end of the rectifier bridge, the second input terminal are connect respectively with firewire, zero curve；The rectifier bridge
Cathode of first output terminal respectively with one end of the first capacitance, diode is connect, the second output terminal ground connection of the rectifier bridge；Institute
The other end ground connection of the first capacitance is stated, the both ends of diode, second electricity are parallel to after second capacitance and inductance series connection
The both ends of appearance are respectively the first drive output, the second drive output；The anode of the diode drives with non-isolated constant current
Chip connects, and the non-isolated constant-current driven chip is equipped with Drain pins, VDD pins and CS pins, and the Drain draws
Foot is connected to the anode of diode, and the CS pins pass through third capacity earth by resistance eutral grounding, the VDD pins.
2. non-isolated New LED driving circuit according to claim 1, it is characterised in that：The inductance is chip inductor.
3. non-isolated New LED driving circuit according to claim 1, it is characterised in that：The resistance and third capacitance
Use patch type.
4. non-isolated New LED driving circuit according to claim 1, it is characterised in that：First capacitance and second
Capacitance is electrolytic capacitor；The anode of first capacitance is connect with the first output terminal of aforementioned rectifier bridge, and the first capacitance is born
Pole is grounded；The anode of second capacitance and the cathode of diode connect, the cathode and inductance connection of second capacitance.
5. a kind of LED light, it is characterised in that：Include lampshade, the circuit board being installed in lampshade and be connected on circuit board
LED light has non-isolated New LED driving circuit on the circuit board；
The non-isolated New LED driving circuit includes rectifier bridge, the first capacitance, diode, inductance, the second capacitance, non-isolated
Constant-current driven chip；The rectifier bridge has first input end, the second input terminal, the first output terminal and second output terminal, institute
State the first input end of rectifier bridge, the second input terminal is connect respectively with firewire, zero curve；The first output terminal difference of the rectifier bridge
It is connect with one end of the first capacitance, the cathode of diode, the second output terminal ground connection of the rectifier bridge；First capacitance it is another
One end is grounded, and the both ends of diode is parallel to after second capacitance and inductance series connection, the both ends of second capacitance are respectively
First drive output, the second drive output, the LED light be connected to the first drive output, the second drive output it
Between；The anode of the diode is connect with non-isolated constant-current driven chip, and the non-isolated constant-current driven chip is equipped with Drain
Pin, VDD pins and CS pins, the Drain pins are connected to the anode of diode, and the CS pins are connect by resistance
Ground, the VDD pins pass through third capacity earth.
6. LED light according to claim 5, it is characterised in that：The inductance is chip inductor.
7. LED light according to claim 5, it is characterised in that：The resistance and third capacitance use patch type.
8. LED light according to claim 5, it is characterised in that：First capacitance and the second capacitance are electrolytic capacitor；
The anode of first capacitance is connect with the first output terminal of aforementioned rectifier bridge, the cathode ground connection of the first capacitance；Second electricity
The anode of appearance and the cathode of diode connect, the cathode and inductance connection of second capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721130383.XU CN207573661U (en) | 2017-09-05 | 2017-09-05 | Non-isolated New LED driving circuit and LED light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721130383.XU CN207573661U (en) | 2017-09-05 | 2017-09-05 | Non-isolated New LED driving circuit and LED light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207573661U true CN207573661U (en) | 2018-07-03 |
Family
ID=62698239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721130383.XU Expired - Fee Related CN207573661U (en) | 2017-09-05 | 2017-09-05 | Non-isolated New LED driving circuit and LED light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207573661U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509276A (en) * | 2017-09-05 | 2017-12-22 | 鹰潭阳光照明有限公司 | Non-isolated New LED drive circuit and LED |
-
2017
- 2017-09-05 CN CN201721130383.XU patent/CN207573661U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107509276A (en) * | 2017-09-05 | 2017-12-22 | 鹰潭阳光照明有限公司 | Non-isolated New LED drive circuit and LED |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180703 Termination date: 20200905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |