CN204206533U - LED power - Google Patents
LED power Download PDFInfo
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- CN204206533U CN204206533U CN201420565805.6U CN201420565805U CN204206533U CN 204206533 U CN204206533 U CN 204206533U CN 201420565805 U CN201420565805 U CN 201420565805U CN 204206533 U CN204206533 U CN 204206533U
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- resistance
- transistor
- electric capacity
- rectifier bridge
- led power
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Abstract
The utility model provides LED power, comprise and connect the fuse F1 of utility grid, the RC oscillating circuit be connected with fuse F1, the rectification unit that is connected with RC oscillating circuit, and the current ripple be connected with rectification unit suppresses unit; Reasonable in design, structure is simple, and working stability is safe and reliable, can realize the function without stroboscopic, cost-saving, good in economic efficiency.
Description
Technical field
The utility model relates to a kind of LED power.
Background technology
LED is efficient because of it, life-span is long, safety, the advantage that the other light sources such as environmental protection hardly match and obtain popularization and application, therefore LED power also comes into one's own day by day, LED electrical source capsule LED light source is at semiconductor lighting Industry Quick Development in recent years, LED has market expectations widely as green light source, a lot of public place and family all adopt LED light source as light source attractive in appearance and healthy eyeshield light source, current various eye-protecting lamp LED drive power is in order to eliminate stroboscopic, Switching Power Supply is all adopted to come constant output current and output ripple, to reach the standard without stroboscopic, but it is relatively very high on cost.Because the deficiency that prior art exists, inventor's thoughts its do not reach perfection, then exhaust its intelligence and concentrate one's attention on research and overcome, be engaged in this industry working experience for many years with it, and then develop LED power, utilize and simply design, reach easy to operate, realize the effect without stroboscopic.
Summary of the invention
Technical problem to be solved in the utility model is to provide LED power, reasonable in design, and structure is simple, and working stability is safe and reliable, can realize the function without stroboscopic, cost-saving, good in economic efficiency.
For solving above-mentioned existing technical problem, the utility model adopts following scheme: LED power, comprise and connect the fuse F1 of utility grid, the RC oscillating circuit be connected with fuse F1, the rectification unit that is connected with RC oscillating circuit, and the current ripple be connected with rectification unit suppresses unit; Described RC oscillating circuit comprises: electric capacity C1, resistance R1 and resistance R2; Described resistance R1 one end is connected with resistance R2, and the other end is connected with the input of electric capacity C1; Described resistance R2 one end is connected with resistance R1, and the other end is connected with the output of electric capacity C1; Described rectification unit comprises: rectifier bridge BD1 and filter capacitor C2; Described rectifier bridge BD1 input connects utility grid, the positive polarity output terminal of described rectifier bridge BD1 is by filter capacitor C2 ground connection, the direct ground connection of negative polarity output of described rectifier bridge BD1, the positive polarity output terminal of described rectifier bridge BD1 is connected LED light source positive pole with between filter capacitor C2.
As preferably, described current ripple suppresses unit to comprise: transistor Q1, resistance R5, voltage-stabiliser tube D1, electric capacity C3, resistance R6; One end of the base stage difference contact resistance R5 of described transistor Q1, the negative pole of voltage-stabiliser tube D1, the positive pole of electric capacity C3, the negative pole ground connection respectively of the other end of described resistance R5, the positive pole of voltage-stabiliser tube D1, electric capacity C3; The emitter of described transistor Q1 is by resistance R6 ground connection, and the collector electrode of described transistor Q1 connects LED light source negative pole.The base stage of transistor Q1 forms clamped, filtering and anti-surge circuit by voltage-stabiliser tube D1 and electric capacity C3, and reasonable in design, working stability, handling safety is reliable.
As preferably, also comprise: resistance R3 and resistance R4, described resistance R3 one end is connected with resistance R4, and the other end is connected with LED light source positive pole, and described resistance R4 one end is connected with resistance R3, and the other end is connected with transistor Q1 base stage.Structure is simple, easy to connect.
As preferably, described transistor Q1 is triode.Frequency characteristic is good, and stability is strong, plays the effect of Current amplifier and the effect of switch.
As preferably, described transistor Q1 is field effect transistor.Working stability, use flexibly, noise is little, and antijamming capability is strong.
Beneficial effect:
The utility model adopts technique scheme to provide LED power, compensate for deficiency of the prior art, reasonable in design, and structure is simple, and working stability is safe and reliable, can realize the function without stroboscopic, cost-saving, good in economic efficiency.
Accompanying drawing explanation
Fig. 1 is the circuit connection diagram of LED power of the present utility model.
Embodiment
As shown in Figure 1, LED power, comprises and connect the fuse F1 of utility grid, the RC oscillating circuit be connected with fuse F1, the rectification unit that is connected with RC oscillating circuit, and the current ripple be connected with rectification unit suppresses unit; Described RC oscillating circuit comprises: electric capacity C1, resistance R1 and resistance R2; Described resistance R1 one end is connected with resistance R2, and the other end is connected with the input of electric capacity C1; Described resistance R2 one end is connected with resistance R1, and the other end is connected with the output of electric capacity C1; Described rectification unit comprises: rectifier bridge BD1 and filter capacitor C2; Described rectifier bridge BD1 input connects utility grid, the positive polarity output terminal of described rectifier bridge BD1 is by filter capacitor C2 ground connection, the direct ground connection of negative polarity output of described rectifier bridge BD1, the positive polarity output terminal of described rectifier bridge BD1 is connected LED light source positive pole with between filter capacitor C2.Described current ripple suppresses unit to comprise: transistor Q1, resistance R5, voltage-stabiliser tube D1, electric capacity C3, resistance R6; One end of the base stage difference contact resistance R5 of described transistor Q1, the negative pole of voltage-stabiliser tube D1, the positive pole of electric capacity C3, the negative pole ground connection respectively of the other end of described resistance R5, the positive pole of voltage-stabiliser tube D1, electric capacity C3; The emitter of described transistor Q1 is by resistance R6 ground connection, and the collector electrode of described transistor Q1 connects LED light source negative pole.Also comprise: resistance R3 and resistance R4, described resistance R3 one end is connected with resistance R4, and the other end is connected with LED light source positive pole, and described resistance R4 one end is connected with resistance R3, and the other end is connected with transistor Q1 base stage.Described transistor Q1 is triode.Described transistor Q1 is field effect transistor.
During real work, adopt fuse, electric capacity, rectification unit and the current ripple connecting utility grid to suppress the combination of unit, form constant current without stroboscopic power supply, RC oscillating circuit comprises: electric capacity C1, resistance R1 and resistance R2; Rectification unit comprises: rectifier bridge BD1 and filter capacitor C2; Current ripple suppresses unit to comprise: transistor Q1, resistance R5, voltage-stabiliser tube D1, electric capacity C3, resistance R6; The base stage of transistor Q1 forms clamped, filtering and anti-surge circuit by voltage-stabiliser tube D1 and electric capacity C3, and transistor Q1 and resistance R6 forms constant-current circuit feedback circuit.Transistor Q1 can adopt triode also can adopt field effect transistor.Performance is compared with the switching power circuit of two stage treatment on the market, reliable and stable, the function without stroboscopic can be realized, cost has very large advantage, have obvious economic benefit.Reasonable in design, structure is simple, and working stability is safe and reliable.
LED power of the present utility model, RC oscillating circuit, rectification unit and current ripple is adopted to suppress the constant current of unit formation without stroboscopic power supply, solve on the basis of resistance-capacitance depressurization, realize without stroboscopic, relatively other patterns without stroboscopic driving power, the LED light source drive circuit of low cost is adopted to achieve without stroboscopic, cost is low, economic benefit is obvious, by the interchange capacitive reactance of RC capacitance-resistance and triode and peripheral group compound module element circuit thereof, limit ripple current, thus stablize stroboscopic, make to export without stroboscopic.LED light source is consisted of without stroboscopic circuit triode unit, realizes stroboscopic and meets not discernable limit value: 3.2.
The utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from spirit and scope of the present utility model; the utility model also has various changes and modifications; these changes and improvements all fall within the scope of claimed the utility model, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.
Specific embodiment described herein is only to the explanation for example of the utility model spirit, the utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Claims (5)
1.LED power supply, is characterized in that: comprise and connect the fuse F1 of utility grid, the RC oscillating circuit be connected with fuse F1, the rectification unit that is connected with RC oscillating circuit, and the current ripple be connected with rectification unit suppresses unit; Described RC oscillating circuit comprises: electric capacity C1, resistance R1 and resistance R2; Described resistance R1 one end is connected with resistance R2, and the other end is connected with the input of electric capacity C1; Described resistance R2 one end is connected with resistance R1, and the other end is connected with the output of electric capacity C1; Described rectification unit comprises: rectifier bridge BD1 and filter capacitor C2; Described rectifier bridge BD1 input connects utility grid, the positive polarity output terminal of described rectifier bridge BD1 is by filter capacitor C2 ground connection, the direct ground connection of negative polarity output of described rectifier bridge BD1, the positive polarity output terminal of described rectifier bridge BD1 is connected LED light source positive pole with between filter capacitor C2.
2. LED power according to claim 1, is characterized in that: described current ripple suppresses unit to comprise: transistor Q1, resistance R5, voltage-stabiliser tube D1, electric capacity C3, resistance R6; One end of the base stage difference contact resistance R5 of described transistor Q1, the negative pole of voltage-stabiliser tube D1, the positive pole of electric capacity C3, the negative pole ground connection respectively of the other end of described resistance R5, the positive pole of voltage-stabiliser tube D1, electric capacity C3; The emitter of described transistor Q1 is by resistance R6 ground connection, and the collector electrode of described transistor Q1 connects LED light source negative pole.
3. LED power according to claim 1, it is characterized in that: also comprise: resistance R3 and resistance R4, described resistance R3 one end is connected with resistance R4, and the other end is connected with LED light source positive pole, described resistance R4 one end is connected with resistance R3, and the other end is connected with transistor Q1 base stage.
4. LED power according to claim 2, is characterized in that: described transistor Q1 is triode.
5. LED power according to claim 2, is characterized in that: described transistor Q1 is field effect transistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565805.6U CN204206533U (en) | 2014-09-28 | 2014-09-28 | LED power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565805.6U CN204206533U (en) | 2014-09-28 | 2014-09-28 | LED power |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204206533U true CN204206533U (en) | 2015-03-11 |
Family
ID=52664440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420565805.6U Expired - Fee Related CN204206533U (en) | 2014-09-28 | 2014-09-28 | LED power |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204206533U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302049A (en) * | 2014-09-28 | 2015-01-21 | 宁波公牛光电科技有限公司 | Led power source |
-
2014
- 2014-09-28 CN CN201420565805.6U patent/CN204206533U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104302049A (en) * | 2014-09-28 | 2015-01-21 | 宁波公牛光电科技有限公司 | Led power source |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20210928 |