CN205546082U - Simple and practical's LED DC power supply - Google Patents
Simple and practical's LED DC power supply Download PDFInfo
- Publication number
- CN205546082U CN205546082U CN201620249401.5U CN201620249401U CN205546082U CN 205546082 U CN205546082 U CN 205546082U CN 201620249401 U CN201620249401 U CN 201620249401U CN 205546082 U CN205546082 U CN 205546082U
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- CN
- China
- Prior art keywords
- resistance
- connects
- unidirectional thyristor
- rectifier bridge
- led
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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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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a simple and practical's LED DC power supply, including rectifier bridge T, resistance R1, unidirectional thyristor Q1 and diode D1, electric capacity C1 and 220V alternating current are connected to resistance R1's one end, and electric capacity C1's the other end and rectifier bridge T's port 1 are connected to resistance R1's the other end, the other ends of rectifier bridge T's 3 connection 220V alternating currents of port, rectifier bridge T's port 2 connecting resistance R4, resistance R5, resistance R6, triode V1's projecting pole and unidirectional thyristor Q1's positive pole. The utility model discloses simple and practical's LED DC power supply simple structure, components and parts are few, only use essential electronic component to form, and nos chip structure utilizes the on -state characteristic of unidirectional thyristor and PNP triode, and the overvoltage protection function to the LED lamps and lanterns has been realized to the combination fuse, so has long service life, stable performance and convenient to use's advantage.
Description
Technical field
This utility model relates to a kind of power circuit, a kind of simple and practical LED DC source.
Background technology
Along with the negative effect caused by Global Greenhouse Effect constantly manifests, in the world every country all using energy-saving and emission-reduction as the major issue that be must take in native economic development, the emerging power-saving technology that LED lighting engineering is arisen at the historic moment just under this background.LED illuminating product has had been applied in daily life, along with developing rapidly of LED at present.The conventional light source that now white LED light source is compared has life-span length, solid state lighting is hardly damaged, specular removal, without advantages such as hydrargyrum environmental protection, antidetonations, following will become third generation light source, another revolution of lighting field will be brought.LED lamp is higher to the requirement of power supply, often occurs that the LED lamp caused due to voltage instability is burned out, therefore needs to be improved.
Utility model content
The purpose of this utility model is to provide a kind of simple and practical LED DC source, with the problem solving to propose in above-mentioned background technology.
For achieving the above object, the following technical scheme of this utility model offer:
nullA kind of simple and practical LED DC source，Including rectifier bridge T、Resistance R1、Unidirectional thyristor Q1 and diode D1，One end of described resistance R1 connects electric capacity C1 and 220V alternating current，The other end of resistance R1 connects the other end and the port 1 of rectifier bridge T of electric capacity C1，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 of rectifier bridge T connects resistance R4、Resistance R5、Resistance R6、The emitter stage of audion V1 and the anode of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、The anode of diode D1、The negative electrode of unidirectional thyristor Q2、The port 4 of LED lamp H and rectifier bridge T，The control pole of unidirectional thyristor Q1 connects resistance R1，The other end of resistance R1 connects the other end and the colelctor electrode of audion V1 of resistance R2，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects resistance R4、The negative electrode of diode D1 and the anode of unidirectional thyristor Q2，Unidirectional thyristor Q2 controls the other end that pole connects resistance R5，The other end of resistance R6 connects the other end of LED lamp H.
As preferred version of the present utility model: described audion V1 is PNP type triode.
Compared with prior art; the beneficial effects of the utility model are: the simple and practical LED DC source simple in construction of this utility model, components and parts are few; basic electronic component is only used to form; chipless structure; utilize the on state characteristic of unidirectional thyristor and PNP triode; achieve the over-voltage protecting function to LED lamp in conjunction with electric fuse, therefore there is length in service life, stable performance and advantage easy to use.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of simple and practical LED DC source.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
nullRefer to Fig. 1，In this utility model embodiment，A kind of simple and practical LED DC source，Including rectifier bridge T、Resistance R1、Unidirectional thyristor Q1 and diode D1，One end of described resistance R1 connects electric capacity C1 and 220V alternating current，The other end of resistance R1 connects the other end and the port 1 of rectifier bridge T of electric capacity C1，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 of rectifier bridge T connects resistance R4、Resistance R5、Resistance R6、The emitter stage of audion V1 and the anode of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、The anode of diode D1、The negative electrode of unidirectional thyristor Q2、The port 4 of LED lamp H and rectifier bridge T，The control pole of unidirectional thyristor Q1 connects resistance R1，The other end of resistance R1 connects the other end and the colelctor electrode of audion V1 of resistance R2，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects resistance R4、The negative electrode of diode D1 and the anode of unidirectional thyristor Q2，Unidirectional thyristor Q2 controls the other end that pole connects resistance R5，The other end of resistance R6 connects the other end of LED lamp H.
Audion V1 is PNP type triode.
nullOperation principle of the present utility model is: 220V line voltage is after the resistance-capacitance type reduction voltage circuit blood pressure lowering that resistance R1 and electric capacity C1 forms，Rectification is carried out again in rectifier bridge T，DC voltage supply LED lamp H exported from the port 2 of rectifier bridge T uses，Potentiometer RP1 can regulate the brightness of LED easily，Audion V1 in circuit、Unidirectional thyristor Q1 and unidirectional thyristor Q2 forms over-voltage over-current protection circuit，Under normal circumstances，Voltage after resistance R3 and resistance R4 dividing potential drop is added in the base stage of audion V1，Audion V1 is owing to being PNP type triode，Therefore end，Unidirectional thyristor Q1 is not turned on，When running into overvoltage or overcurrent situations，Voltage after resistance R5 dividing potential drop makes the control pole of unidirectional thyristor Q2 obtain electric，Unidirectional thyristor Q2 turns on，Thus bypass the base current of audion V1，Audion V1 turns on，The control pole of unidirectional thyristor Q1 obtains electric，Unidirectional thyristor Q1 turns on，Electric fuse FU is fused by the big electric current of moment，And then reach to protect the purpose of LED lamp H.
Claims (2)
- null1. a simple and practical LED DC source，Including rectifier bridge T、Resistance R1、Unidirectional thyristor Q1 and diode D1，It is characterized in that，One end of described resistance R1 connects electric capacity C1 and 220V alternating current，The other end of resistance R1 connects the other end and the port 1 of rectifier bridge T of electric capacity C1，The port 3 of rectifier bridge T connects the other end of 220V alternating current，The port 2 of rectifier bridge T connects resistance R4、Resistance R5、Resistance R6、The emitter stage of audion V1 and the anode of unidirectional thyristor Q1，The negative electrode of unidirectional thyristor Q1 connects resistance R2、The anode of diode D1、The negative electrode of unidirectional thyristor Q2、The port 4 of LED lamp H and rectifier bridge T，The control pole of unidirectional thyristor Q1 connects resistance R1，The other end of resistance R1 connects the other end and the colelctor electrode of audion V1 of resistance R2，The base stage of audion V1 connects resistance R3，The other end of resistance R3 connects resistance R4、The negative electrode of diode D1 and the anode of unidirectional thyristor Q2，Unidirectional thyristor Q2 controls the other end that pole connects resistance R5，The other end of resistance R6 connects the other end of LED lamp H.
- Simple and practical LED DC source the most according to claim 1, it is characterised in that described audion V1 is PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249401.5U CN205546082U (en) | 2016-03-25 | 2016-03-25 | Simple and practical's LED DC power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620249401.5U CN205546082U (en) | 2016-03-25 | 2016-03-25 | Simple and practical's LED DC power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205546082U true CN205546082U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620249401.5U Expired - Fee Related CN205546082U (en) | 2016-03-25 | 2016-03-25 | Simple and practical's LED DC power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205546082U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359925A (en) * | 2021-06-28 | 2021-09-07 | 广东电网有限责任公司 | Direct current source realized by addition principle and control method thereof |
-
2016
- 2016-03-25 CN CN201620249401.5U patent/CN205546082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113359925A (en) * | 2021-06-28 | 2021-09-07 | 广东电网有限责任公司 | Direct current source realized by addition principle and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |