CN208385165U - A kind of transformer and Switching Power Supply - Google Patents
A kind of transformer and Switching Power Supply Download PDFInfo
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- CN208385165U CN208385165U CN201820044670.7U CN201820044670U CN208385165U CN 208385165 U CN208385165 U CN 208385165U CN 201820044670 U CN201820044670 U CN 201820044670U CN 208385165 U CN208385165 U CN 208385165U
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Abstract
The utility model proposes a kind of transformer and Switching Power Supplies, wherein transformer includes: primary coil, the first secondary coil, second subprime coil and magnetic core；Primary coil and the first secondary coil are arranged at the primary side of magnetic core；The primary side of magnetic core is arranged in second subprime coil；Wherein, the first secondary coil and second subprime coil export identical voltage.The utility model realizes different loads and is separately powered by different secondary coils, and avoiding different loads and interfering between each other causes system unstable；It avoids carrying out voltage transformation using DC/DC direct current transducer and/or LDO, effectively reduces the manufacturing cost of Switching Power Supply and the power consumption of Switching Power Supply.
Description
Technical field
The utility model relates to power technique fields more particularly to a kind of transformer and Switching Power Supplies.
Background technique
Transformer (Transformer) is the device for changing alternating voltage using the principle of electromagnetic induction, mainly includes
Primary coil, secondary coil and magnetic core (iron core).Currently, the winding mode of transformer coil is all retarder in side, it is non-
Retarder is in the other side.In this way if primary coil is more, it will cause primary coil pin too many, transformer device structure does not conform to
Reason.
Meanwhile the prior art generally uses the coil winding mode of transformer 3 road voltages of output, more output voltages are adopted
It is realized with the mode of DC/DC direct current transducer or LDO (low dropout regulator, low pressure difference linear voltage regulator).This
Sample needs higher cost, and loss is also big, is unfavorable for energy-saving.
As shown in Figure 1, existing transformer includes primary coil 101, the first secondary coil 102, second subprime coil 103
With magnetic core 104；Wherein, primary coil 101 and the first secondary coil 102 are wound on the primary side of magnetic core 104；Second subprime line
Circle 103 is wound on the primary side of magnetic core 104；Second subprime coil 103 is for exporting isolation voltage 5V and 12V；First secondary wire
Circle 102 is connect for exporting non-isolated voltage 15V, and respectively with switch chip 105 and load 106；Switch chip 105 and load
106 are easy to interfere with each other, and make transformer job insecurity；Meanwhile first the non-isolated voltage 15V that exports of secondary coil 102 it is logical
It crosses DC/DC direct current transducer or LDO107 is converted to 5V voltage, provide power supply for load 108；Pass through DC/DC direct current transducer
15V is converted to 5V by 107, will increase the production cost of transformer；15V is converted into 5V by LDO107, will increase entire change
The power consumption of depressor.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of transformer and Switching Power Supply, overcomes the prior art
The load of middle transformer interferes with each other unstable defect.
The technical solution adopted in the utility model is a kind of transformer, comprising: primary coil, the first secondary coil, second
Secondary coil and magnetic core；
Primary coil and the first secondary coil are arranged at the primary side of magnetic core；
The primary side of magnetic core is arranged in second subprime coil；
Wherein, the first secondary coil and second subprime coil export identical voltage.
Optionally, second subprime coil is equipped with the first tap.
Optionally, the quantity of the first tap is one or more.
Optionally, transformer further include: third secondary coil；The primary side of magnetic core is arranged in third secondary coil.
Optionally, third secondary coil is equipped with the second tap.
The utility model also provides a kind of Switching Power Supply, comprising: input power, switch control chip, first load and on
The transformer stated；
Input power is connected with the primary coil of transformer；
Switch control chip is connected with the first secondary coil of transformer；
First secondary coil, for providing driving power for switch control chip；
First load is connected with the second subprime coil of transformer.
Optionally, second subprime coil is equipped with the first tap；Wherein, the quantity of the first tap is one or more；
Transformer further include: third secondary coil；The primary side of magnetic core is arranged in third secondary coil；Wherein, third time
Grade coil is equipped with the second tap.
Optionally, Switching Power Supply further include: the second load；
Second load is connected with the first tap of transformer.
Optionally, the quantity of the second load is multiple；
Second load is connected with the first tap of corresponding transformer respectively.
Optionally, Switching Power Supply further include: third load and the 4th load；
Third load is connected with the third secondary coil of transformer；
4th load is connected with the second tap of transformer.
By adopting the above technical scheme, the utility model at least has the advantage that
A kind of transformer described in the utility model and Switching Power Supply, realizing through different secondary coils is different bear
Separately power supply is carried, avoiding different loads and interfering between each other causes system unstable；It avoids using DC/DC direct current transducer
And/or LDO carries out voltage transformation, effectively reduces the manufacturing cost of Switching Power Supply and the power consumption of Switching Power Supply.
Detailed description of the invention
Fig. 1 is the composed structure schematic diagram of transformer in the prior art；
Fig. 2 is the composed structure schematic diagram of the transformer of the utility model first embodiment；
Fig. 3 is the composed structure schematic diagram of the transformer of the utility model second embodiment；
Fig. 4 is the composed structure schematic diagram of the Switching Power Supply of the utility model 3rd embodiment；
Fig. 5 is the composed structure schematic diagram of the Switching Power Supply of the utility model fourth embodiment.
Specific embodiment
Further to illustrate that the utility model is the technical means and efficacy reaching predetermined purpose and being taken, below in conjunction with
The utility model is described in detail as rear in attached drawing and preferred embodiment.
The utility model first embodiment, a kind of transformer, as shown in Fig. 2, including consisting of part:
Primary coil 201, the first secondary coil 202, second subprime coil 203 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
The primary side of magnetic core 205 is arranged in second subprime coil 203；
Wherein, the first secondary coil 202 exports identical voltage with second subprime coil 203.
Such as: as shown in Fig. 2, transformer includes consisting of part:
Primary coil 201, the first secondary coil 202, second subprime coil 203 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
The primary side of magnetic core 205 is arranged in second subprime coil 203；
Wherein, the first secondary coil 202, for exporting+15V；
Second subprime coil 203, for exporting+15V.
First secondary coil 202 and second subprime coil 203 are respectively that different loads provide driving power；Avoid difference
Interference causes system unstable between each other for load.
In some embodiments of the utility model, the material and shape of magnetic core 205 are not specifically limited.
In some embodiments of the utility model, to primary coil 201, the first secondary coil 202 and second subprime line
The material of circle 203 is not specifically limited.
A kind of transformer described in the utility model first embodiment, realizing through different secondary coils is different bear
Separately power supply is carried, avoiding different loads and interfering between each other causes system unstable.
The utility model second embodiment, a kind of transformer, as shown in figure 3, including consisting of part:
Primary coil 201, the first secondary coil 202, second subprime coil 203, third secondary coil 204 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
Second subprime coil 203 and third secondary coil 204 are arranged at the primary side of magnetic core 205；
Optionally, second subprime coil 203 is equipped with the first tap 206；Wherein, the quantity of the first tap 206 is one
It is a or multiple.
Optionally, third secondary coil 204 is equipped with the second tap 207；Wherein, the quantity of the second tap 207 is one
It is a or multiple.
Wherein, the first secondary coil 202 exports identical voltage with second subprime coil 203.
In some embodiments of the utility model, the output voltage of the first tap 206 is not specifically limited；To
The output voltage of two taps 207 is not specifically limited.
Such as: as shown in figure 3, transformer includes consisting of part:
Primary coil 201, the first secondary coil 202, second subprime coil 203, third secondary coil 204 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
Second subprime coil 203 and third secondary coil 204 are arranged at the primary side of magnetic core 205；
Wherein, the first secondary coil 202, for exporting+15V；
Second subprime coil 203, for exporting+15V；
Third secondary coil 204, for exporting+12V；
Second subprime coil 203 is equipped with first tap 206；First tap 206, for exporting+5V；
Third secondary coil 204 is equipped with second tap 207；Second tap 207, for exporting+5V.
First secondary coil 202 and second subprime coil 203 are respectively that different loads provide driving power；Avoid difference
Interference causes system unstable between each other for load.
By being equipped in second subprime coil 203 equipped with first tap 206, and/or in third secondary coil 204
One the second tap 207 avoids carrying out voltage transformation using DC/DC direct current transducer and/or LDO, effectively reduces switch
The manufacturing cost of power supply and the power consumption of Switching Power Supply.
In some embodiments of the utility model, the material and shape of magnetic core 205 are not specifically limited.
In some embodiments of the utility model, to primary coil 201, the first secondary coil 202, second subprime coil
203 and the material of third secondary coil 204 be not specifically limited.
A kind of transformer described in the utility model second embodiment, realizing through different secondary coils is different bear
Separately power supply is carried, avoiding different loads and interfering between each other causes system unstable；It avoids using DC/DC direct current transducer
And/or LDO carries out voltage transformation, effectively reduces the manufacturing cost of Switching Power Supply and the power consumption of Switching Power Supply.
The utility model 3rd embodiment, a kind of Switching Power Supply, as shown in figure 4, including consisting of part:
Input power 301, the load of switch control chip 302, first 303 and transformer 304；
Wherein, transformer 304 includes: primary coil 201, the first secondary coil 202, second subprime coil 203 and magnetic core
205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
The primary side of magnetic core 205 is arranged in second subprime coil 203；
First secondary coil 202 exports identical voltage with second subprime coil 203.
Input power 301 is connected with the primary coil 201 of transformer 304；
Switch control chip 302 is connected with the first secondary coil 202 of transformer 304；
First secondary coil 202, for providing driving power for switch control chip 302；
First load 303 is connected with the second subprime coil 203 of transformer 304；
Second subprime coil 203, for providing driving power for the first load 303.
Such as: as shown in figure 4, a kind of Switching Power Supply, comprising: input power 301, switch control chip 302, first load
303 and transformer 304；
Wherein, transformer 304 includes: primary coil 201, the first secondary coil 202, second subprime coil 203 and magnetic core
205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
The primary side of magnetic core 205 is arranged in second subprime coil 203；
Wherein, the first secondary coil 202, for exporting+15V；
Second subprime coil 203, for exporting+15V；
Input power 301 is connected with the primary coil 201 of transformer 304；
Switch control chip 302 is connected with the first secondary coil 202 of transformer 304；
First secondary coil 202, for providing+15V driving power for switch control chip 302；
First load 303 is connected with the second subprime coil 203 of transformer 304；
Second subprime coil 203, for providing+15V driving power for the first load 303.
First secondary coil 202 is that switch control chip 302 provides+15V driving power；Second subprime coil 203 is the
One 303 offer+15V driving powers of load；Avoiding switch control chip 302 and the mutual interference of the first load 303 causes
System is unstable.
In some embodiments of the utility model, specific limit is not done to switch control chip 302 and the first load 303
It is fixed.
A kind of Switching Power Supply described in the utility model 3rd embodiment, it is different for realizing through different secondary coils
Load separately power supply, avoiding different loads and interfering between each other causes system unstable.
The utility model fourth embodiment, a kind of Switching Power Supply, as shown in figure 5, including consisting of part:
Input power 301,303, second load 305 of the load of switch control chip 302, first, third load the 306, the 4th
Load 307 and transformer 304；
Primary coil 201, the first secondary coil 202, second subprime coil 203, third secondary coil 204 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
Second subprime coil 203 and third secondary coil 204 are arranged at the primary side of magnetic core 205；
Optionally, second subprime coil 203 is equipped with the first tap 206；Wherein, the quantity of the first tap 206 is one
It is a or multiple.
Optionally, third secondary coil 204 is equipped with the second tap 207；Wherein, the quantity of the second tap 207 is one
It is a or multiple.
Wherein, the first secondary coil 202 exports identical voltage with second subprime coil 203；
Input power 301 is connected with the primary coil 201 of transformer 304；
Switch control chip 302 is connected with the first secondary coil 202 of transformer 304；
First secondary coil 202, for providing driving power for switch control chip 302；
First load 303 is connected with the second subprime coil 203 of transformer 304；
Second subprime coil 203, for providing driving power for the first load 303；
Second load 305 is connected with the first tap 206 of transformer 304；
First tap 206, for providing driving power for the second load 305；
Optionally, the quantity of the second load 305 is multiple；Second load 305 respectively with corresponding transformer 304 first
Tap 206 is connected；
Third load 306 is connected with the third secondary coil 204 of transformer 304；
Third secondary coil 204, for providing driving power for third load 306；
4th load 307 is connected with the second tap 207 of transformer 304；
Second tap 207, for providing driving power for the 4th load 307.
For example, as shown in figure 5, a kind of Switching Power Supply, comprising: input power 301, switch control chip 302, first load
303, the second load 305, the 306, the 4th load 307 of third load and transformer 304；
Primary coil 201, the first secondary coil 202, second subprime coil 203, third secondary coil 204 and magnetic core 205；
Primary coil 201 and the first secondary coil 202 are arranged at the primary side of magnetic core 205；
Second subprime coil 203 and third secondary coil 204 are arranged at the primary side of magnetic core 205；
Wherein, the first secondary coil 202, for exporting+15V；
Second subprime coil 203, for exporting+15V；
Third secondary coil 204, for exporting+12V；
Second subprime coil 203 is equipped with first tap 206；First tap 206, for exporting+5V；
Third secondary coil 204 is equipped with second tap 207；Second tap 207, for exporting+5V.
Switch control chip 302 is connected with the first secondary coil 202 of transformer 304；
First secondary coil 202, for providing+15V driving power for switch control chip 302；
First load 303 is connected with the second subprime coil 203 of transformer 304；
Second subprime coil 203, for providing+15V driving power for the first load 303；
Second load 305 is connected with the first tap 206 of transformer 304；
First tap 206, for providing+5V driving power for the second load 305；
Third load 306 is connected with the third secondary coil 204 of transformer 304；
Third secondary coil 204, for providing+12V driving power for third load 306；
4th load 307 is connected with the second tap 207 of transformer 304.
Second tap 207, for providing+5V driving power for the 4th load 307；
First secondary coil 202 is that switch control chip 302 provides+15V driving power；Second subprime coil 203 is the
One 303 offer+15V driving powers of load；Avoiding switch control chip 302 and the mutual interference of the first load 303 causes
System is unstable.
First tap 206 is that the second load 305 provides+5V driving power；Second tap 207 is the 4th load 307
Offer+5V driving power；It avoids carrying out voltage transformation using DC/DC direct current transducer and/or LDO, effectively reduces switch electricity
The manufacturing cost in source and the power consumption of Switching Power Supply.
In some embodiments of the utility model, to switch control chip 302 and first the 303, second load of load
305, third load 306 and the 4th load 307 are not specifically limited.
A kind of Switching Power Supply described in the utility model fourth embodiment, it is different for realizing through different secondary coils
Load separately power supply, avoiding different loads and interfering between each other causes system unstable；It avoids using DC/DC direct current transducer
And/or LDO carries out voltage transformation, effectively reduces the manufacturing cost of Switching Power Supply and the power consumption of Switching Power Supply.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
Above-mentioned the utility model embodiment serial number is for illustration only, does not represent the advantages or disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to by hardware, but in many cases
The former is more preferably embodiment.Based on this understanding, the technical solution of the utility model is substantially in other words to existing skill
The part that art contributes can be embodied in the form of software products, which is stored in a storage and is situated between
In matter (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal (can be mobile phone, computer, service
Device, air conditioner or network equipment etc.) execute method described in each embodiment of the utility model.
The embodiments of the present invention are described above in conjunction with attached drawing, but the utility model is not limited to
The specific embodiment stated, the above mentioned embodiment is only schematical, rather than restrictive, this field it is common
Technical staff is not departing from the utility model aims and scope of the claimed protection situation under the enlightenment of the utility model
Under, many forms can be also made, these are belonged within the protection of the utility model.
Claims (10)
1. a kind of transformer characterized by comprising primary coil, the first secondary coil, second subprime coil and magnetic core；
The primary coil and first secondary coil are arranged at the primary side of the magnetic core；
The primary side of the magnetic core is arranged in the second subprime coil；
Wherein, first secondary coil and the second subprime coil export identical voltage.
2. transformer according to claim 1, which is characterized in that the second subprime coil is equipped with the first tap.
3. transformer according to claim 2, which is characterized in that the quantity of first tap is one or more.
4. transformer according to claim 1, which is characterized in that the transformer further include: third secondary coil；It is described
The primary side of the magnetic core is arranged in third secondary coil.
5. transformer according to claim 4, which is characterized in that the third secondary coil is equipped with the second tap.
6. a kind of Switching Power Supply characterized by comprising input power, switch control chip, the first load and claim 1
The transformer；
The input power is connected with the primary coil of the transformer；
The switch control chip is connected with the first secondary coil of the transformer；
First secondary coil, for providing driving power for the switch control chip；
First load is connected with the second subprime coil of the transformer.
7. Switching Power Supply according to claim 6, which is characterized in that the second subprime coil is equipped with the first tap；
Wherein, the quantity of first tap is one or more；
The transformer further include: third secondary coil；The primary side of the magnetic core is arranged in the third secondary coil；Its
In, the third secondary coil is equipped with the second tap.
8. Switching Power Supply according to claim 7, which is characterized in that the Switching Power Supply further include: the second load；
Second load is connected with the first tap of the transformer.
9. Switching Power Supply according to claim 8, which is characterized in that the quantity of second load is multiple；
Second load is connected with the first tap of the corresponding transformer respectively.
10. Switching Power Supply according to claim 7, which is characterized in that the Switching Power Supply further include: third load and the
Four loads；
The third load is connected with the third secondary coil of the transformer；
4th load is connected with the second tap of the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044670.7U CN208385165U (en) | 2018-01-08 | 2018-01-08 | A kind of transformer and Switching Power Supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820044670.7U CN208385165U (en) | 2018-01-08 | 2018-01-08 | A kind of transformer and Switching Power Supply |
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| Publication Number | Publication Date |
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| CN208385165U true CN208385165U (en) | 2019-01-15 |
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ID=64978334
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820044670.7U Active CN208385165U (en) | 2018-01-08 | 2018-01-08 | A kind of transformer and Switching Power Supply |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087245A (en) * | 2019-06-12 | 2020-12-15 | 天地融科技股份有限公司 | Power line carrier communication device and communication method |
-
2018
- 2018-01-08 CN CN201820044670.7U patent/CN208385165U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112087245A (en) * | 2019-06-12 | 2020-12-15 | 天地融科技股份有限公司 | Power line carrier communication device and communication method |
| CN112087245B (en) * | 2019-06-12 | 2021-12-24 | 天地融科技股份有限公司 | Power line carrier communication device and communication method |
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