CN207720481U - A kind of toggle switch control power power-supply - Google Patents
A kind of toggle switch control power power-supply Download PDFInfo
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- CN207720481U CN207720481U CN201820094217.7U CN201820094217U CN207720481U CN 207720481 U CN207720481 U CN 207720481U CN 201820094217 U CN201820094217 U CN 201820094217U CN 207720481 U CN207720481 U CN 207720481U
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Abstract
The utility model provides a kind of toggle switch control power power-supply,Including transformer rectifier circuit,Constant-current circuit and control circuit,The transformer rectifier circuit input terminal is electrically connected with external communication,The constant-current circuit input terminal is connected with transformer rectifier circuit output end,Output end externally exports power supply,The control circuit is connected with constant-current circuit control terminal,To control constant-current circuit output current,The constant-current circuit obtains stabling current using LED light modulation driving chip MP4056 control EF20 high frequency transformers,The control circuit is series between the 6th pin and ground of LED light modulation driving chips MP4056,Toggle switch is provided in control circuit,The resistance value between the 6th pin and ground of LED light modulation driving chips MP4056 can be changed by adjusting toggle switch,And then change the size of constant-current circuit output current.The utility model output current is adjustable, and client can choose best power according to actual use lamps and lanterns quantity adjustment toggle switch, cost-effective, easy to use.
Description
Technical field
The utility model is related to power power-supply technical field, specially a kind of toggle switch controls power power-supply.
Background technology
Existing led driving powers are all constant-current supplies, and only there are one fixed output currents for a power supply；One big work(
The power supply of rate such as 30W power supplys can go to use, it is only necessary to which the current-limiting resistance for adjusting power supply IC reaches as 20W 15W power
Adjust the effect of electric current.In the LED small-powers field application spaces You Hen great.Such as：The small downlight of stair light or market etc. is various
Power only has the lamps and lanterns of 1-5W, if each lampet we be separately configured power supply this expense can than one Power supply belt it is more
A lamp expense is much higher.We can reach reduction client cost with a power supply with multiple lamps, circuit be reduced, in lamp applications
When can preferably connect up.But the same power supply matches different lamps and lanterns, is required for adjusting current-limiting resistance every time, it is cumbersome, and
And the user having also has no ability to de-regulation current-limiting resistance.
Utility model content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the utility model provides a kind of toggle switch control power power-supply, solves existing
There are led driving powers to adjust the cumbersome problem of output current.
(2) technical solution
To achieve the above object, the utility model provides the following technical solutions：A kind of toggle switch control power power-supply, packet
Transformer rectifier circuit, constant-current circuit and control circuit are included, the transformer rectifier circuit input terminal is electrically connected with external communication, described
Constant-current circuit input terminal is connected with transformer rectifier circuit output end, and output end externally exports power supply, the control circuit and constant current
Circuit control end is connected, and to control constant-current circuit output current, the constant-current circuit includes LED light modulation driving chips and high frequency
Transformer dims driving chip by LED and controls high frequency transformer acquisition stabling current, and the control circuit is series at LED tune
Between the 6th pin and ground of optical drive chip, it is provided with toggle switch in the control circuit, it can be with by adjusting toggle switch
The resistance value for changing control circuit dims the resistance value between the 6th pin and ground of driving chip, Jin Ergai to change LED
Become the size of constant-current circuit output current.
Preferably, LED light modulation driving chip the models MP4056, the high frequency transformer model EF20.
Preferably, the toggle switch puts down for seven and pushes pass, including first switch, second switch, third switch, the 4th aside
Switch, the 5th switch, the 6th switch and the 7th switch.
(3) advantageous effect
Compared with prior art, the utility model provides a kind of for electric installation, has following advantageous effect：This practicality is new
Type output current is adjustable, and client can choose best power according to actual use lamps and lanterns quantity adjustment toggle switch, save at
This, it is easy to operate.
Description of the drawings
Fig. 1 is the utility model principle figure；
Fig. 2 is the total circuit diagram of the utility model；
Fig. 3 is transformer rectifier circuit circuit diagram；
Fig. 4 is constant-current circuit circuit diagram；
Fig. 5 is control circuit circuit diagram.
In figure：T1, high frequency transformer, U1, LED light modulation driving chip, K1A, first switch, K1B, second switch, K1C,
Third switchs, K1D, the 4th switch, K1E, the 5th switch, K1F, the 6th switch, K1G, the 7th switch, R18, the 18th resistance,
R25, the 25th resistance.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1-5, a kind of toggle switch controls power power-supply, including transformer rectifier circuit, constant-current circuit and control
Circuit, transformer rectifier circuit input terminal are electrically connected with external communication, constant-current circuit input terminal and transformer rectifier circuit output end phase
Even, output end externally exports power supply, and control circuit is connected with constant-current circuit control terminal, to control constant-current circuit output current,
Constant-current circuit includes LED light modulation driving chip U1 and high frequency transformer T1, and dimming driving chip U1 by LED controls high frequency transformation
Device T1 obtains stabling current, and control circuit is series between the 6th pin and ground of LED light modulation driving chips U1, in control circuit
It is provided with toggle switch, toggle switch puts down for seven and pushes pass aside, including first switch K1A, second switch K1B, third switch
K1C, the 4th switch K1D, the 5th switch K1E, the 6th switch K1F and the 7th switch K1G, when adjusting toggle switch, thus it is possible to vary
LED dims the resistance value between the 6th pin and ground of driving chip U1, and then changes the size of constant-current circuit output current.LED
Dim driving chip U1 model MP4056, high frequency transformer T1 models EF20.
Operation principle：By changing the resistance value between the 6th pins of LED light modulation driving chips U1 and ground, thus it is possible to vary permanent
The output current of current circuit, by adjusting toggle switch, thus it is possible to vary LED is dimmed between the 6th pins of driving chip U1 and ground
Resistance, by taking the first switch K1A of toggle switch as an example, when first switch K1A is in an open state, the 18th resistance R18 and ground
Conducting, it is the 18th resistance R18 and the 25th resistance R25 that LED, which dims the resistance value between the 6th pins of driving chip U1 and ground,
Resistance value after parallel connection.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is appreciated that can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of toggle switch controls power power-supply, which is characterized in that including transformer rectifier circuit, constant-current circuit and control electricity
Road, the transformer rectifier circuit input terminal are electrically connected with external communication, and the constant-current circuit input terminal and transformer rectifier circuit are defeated
Outlet is connected, and output end externally exports power supply, and the control circuit is connected with constant-current circuit control terminal, to control constant-current circuit
Output current, the constant-current circuit include LED light modulation driving chips and high frequency transformer, and driving chip control is dimmed by LED
High frequency transformer obtains stabling current, and the control circuit is series between the 6th pin and ground of LED light modulation driving chips, institute
It states and is provided with toggle switch in control circuit, the resistance value of control circuit can be changed by adjusting toggle switch, to change
LED dims the resistance value between the 6th pin and ground of driving chip, and then changes the size of constant-current circuit output current.
2. a kind of toggle switch according to claim 1 controls power power-supply, which is characterized in that the LED light modulations driving
Chip model is MP4056, the high frequency transformer model EF20.
3. a kind of toggle switch according to claim 1 controls power power-supply, which is characterized in that the toggle switch is seven
Position is flat to push pass aside, including first switch, second switch, third switch, the 4th switch, the 5th switch, the 6th switch and the 7th are opened
It closes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820094217.7U CN207720481U (en) | 2018-01-20 | 2018-01-20 | A kind of toggle switch control power power-supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820094217.7U CN207720481U (en) | 2018-01-20 | 2018-01-20 | A kind of toggle switch control power power-supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207720481U true CN207720481U (en) | 2018-08-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820094217.7U Active CN207720481U (en) | 2018-01-20 | 2018-01-20 | A kind of toggle switch control power power-supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207720481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087364A (en) * | 2019-05-21 | 2019-08-02 | 江苏宜美照明科技股份有限公司 | LED power circuit |
-
2018
- 2018-01-20 CN CN201820094217.7U patent/CN207720481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110087364A (en) * | 2019-05-21 | 2019-08-02 | 江苏宜美照明科技股份有限公司 | LED power circuit |
| CN110087364B (en) * | 2019-05-21 | 2024-03-05 | 江苏宜美照明科技股份有限公司 | LED power supply circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000 Room 301, building 2, No. 2, Zhangluo Dongshan Industrial Street, Zhangmutou town, Dongguan City, Guangdong Province Patentee after: AONELED CO.,LTD. Address before: 523000 Workshop on the third floor of building B, Zhongda Industrial Park, Zhangluo Dongshan Industrial Zone, Zhangmutou town, Dongguan City, Guangdong Province Patentee before: AONELED CO.,LTD. |
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| CP02 | Change in the address of a patent holder |