CN103051210A - Power supply - Google Patents
Power supply Download PDFInfo
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- CN103051210A CN103051210A CN 201110311644 CN201110311644A CN103051210A CN 103051210 A CN103051210 A CN 103051210A CN 201110311644 CN201110311644 CN 201110311644 CN 201110311644 A CN201110311644 A CN 201110311644A CN 103051210 A CN103051210 A CN 103051210A
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- China
- Prior art keywords
- voltage
- power supply
- converter
- supply unit
- transformation module
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Abstract
The invention discloses a power supply, which comprises an input interface, an alternating current/direct current converter, a plurality of voltage converting modules and output interfaces, wherein the quantity of the output interfaces corresponds to that of the voltage converting modules; the input interface is used for connecting to an alternating current power supply to access an alternating current voltage from the alternating current power supply; the alternating current/direct current converter is used for converting the alternating current voltage into a direct current voltage; one end of each voltage converting module is connected to the alternating current/direct current converter, and the other end of each voltage converting module is connected to a corresponding output interface; and the voltage converting module is used for converting the direct current voltage into a plurality of preset voltages of different values, and outputting through corresponding output interfaces respectively to adapt to electronic equipment of different types.
Description
Technical field
The present invention relates to a kind of power supply unit, especially relate to the power supply unit of the portable electric appts such as a kind of computer.
Background technology
Along with the development of science and technology, the kind of electronic equipment is day by day various.Usually, the power parameter of variety classes electronic equipment is different, is difficult to directly share a power supply.Often need to be for each class of electronic devices arrange respectively special-purpose power supply in the practical application, perhaps use transformer that the voltage of same power supply is adjusted after more respectively for each class of electronic devices.So obviously increase the accessory cost of electronic equipment, and be unfavorable for the simplification that electronic equipment uses.
Summary of the invention
In view of foregoing, be necessary to provide a kind of simple in structure and lower-cost power supply unit.
A kind of power supply unit, comprise input interface, AC/DC converter, some voltage transformation modules and quantity and the corresponding output interface of this voltage transformation module quantity, described input interface is in order to be connected to an AC power, to access an alternating voltage from described AC power, described AC/DC converter is in order to convert described alternating voltage to one direct current voltage, one end of each voltage transformation module all is connected to described AC/DC converter, the other end is connected to corresponding output interface, described voltage transformation module is used for described direct voltage is converted to the voltage of some predetermined different numerical value, and respectively by corresponding output interface output.
Power supply unit of the present invention directly obtains power supply from existing AC power, and this power supply converted to a plurality of different voltages that satisfy existing demand, export corresponding electronic equipment to by corresponding output interface again, to satisfy the power demands of various electronic.Power supply unit of the present invention does not need a plurality of transformers are set, and versatility is stronger, is conducive to the integrally-built simplification of electronic equipment, miniaturization, and can effectively reduce the manufacturing cost of this power supply unit.
Description of drawings
Fig. 1 is the schematic diagram of the power supply unit of better embodiment of the present invention.
Fig. 2 is that power supply unit shown in Figure 1 is connected to the functional block diagram between an AC power and the electronic equipment.
Fig. 3 is the functional block diagram of voltage transformation module in the power supply unit shown in Figure 2.
The main element symbol description
| |
100 |
| |
11 |
| AC/ |
12 |
| |
13 |
| |
14 |
| Rectifying/filtering circuit | 15 |
| |
16 |
| Field effect transistor | Q |
| Control switch | |
| AC power | |
| 200 | |
| |
300 |
| |
400 |
Following embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Please refer to Fig. 1 and Fig. 2, better embodiment of the present invention provides a kind of power supply unit 100, it is connected to an AC power 200, converts a plurality of different direct voltage outputs in order to the alternating voltage with described AC power 200, uses for various dissimilar electronic equipments 300.This power supply unit 100 is installed in the housing 400, comprises the corresponding output interface 14 of input interface 11, AC/DC converter 12, some voltage transformation modules 13 and quantity and this voltage transformation module 13 quantity.
Described input interface 11 is arranged on a side of described housing 400, in order to be connected to this AC power 200, to access an alternating voltage from described AC power 200.
Described AC/DC converter 12 is arranged in the described housing 400, converts a direct current voltage in order to the alternating voltage with described AC power 200 outputs.
See also Fig. 3, in the present embodiment, the quantity of voltage transformation module 13 is four, in order to the direct voltage of described AC/DC converter 12 outputs is processed, and convert 19V, 12V, 5V and four gears of 3.3V to, be sent to corresponding electronic equipment 300 by this output interface 14 again.One end of each voltage transformation module 13 all is connected to described AC/DC converter 12, and the other end then is connected to corresponding output interface 14.Each voltage transformation module 13 comprises field effect transistor Q, by changing the duty ratio of described field effect transistor Q, is adjusted to a preset value with the voltage with the output of described field effect transistor Q, for example 19V/12V/5V/3.3V commonly used.
This output interface 14 is arranged on the described housing 400, and its two ends are connected to respectively corresponding field effect transistor Q and electronic equipment 300, in order to the extremely corresponding electronic equipment 300 of Voltage-output that described voltage transformation module 13 is changed.
Be appreciated that, each voltage transformation module 13 also comprises a rectifying/filtering circuit 15, one end of this rectifying/filtering circuit 15 is connected to described AC/DC converter 12, the other end is connected to corresponding field effect transistor Q, carrying out rectification/filtering in order to the direct voltage that described AC/DC converter 12 is provided processes, and then provide a comparatively pure direct voltage to described voltage transformation module 13, to improve the power supply precision of this power supply unit 100.
Be appreciated that each voltage transformation module 13 also comprises a control switch S, described control switch S is connected to respectively corresponding field effect transistor Q, is sent to output interface 14 and to corresponding electronic equipment 300 power supplies in order to the voltage of controlling voltage transformation module 13 output.So, when the one group of power supply that does not use wherein, for example during the 5V power supply, can close corresponding field effect transistor Q by this control switch S, to reduce unnecessary power supply conversion, and then improve the conversion efficiency of power supply unit 100, and reduce the bulk temperature of described power supply unit 100, reach energy-conservation purpose.
Be appreciated that power supply unit 100 of the present invention also can comprise mains switch 16, described mains switch 16 is connected between described input interface 11 and the described AC/DC converter 12.When described mains switch 16 was struck to ON one side, described mains switch 16 was connected to described AC/DC converter 12 with described AC power 200.Described AC power 200 output AC voltages are to described AC/DC converter 12.When described mains switch 16 was struck a side to OFF, described mains switch 16 disconnected being connected between described AC power 200 and the described AC/DC converter 12, so that described AC/DC converter 12 does not receive described alternating voltage.
The below introduces the power supply the principle of this power supply unit 100 in detail.
At first, input interface 11 is connected to AC power 200, and described mains switch 16 is dialed to ON one side, to obtain an AC power.At this moment, the AC power of obtaining is converted to corresponding direct voltage through behind this AC/DC converter 12.Then, this voltage transformation module 13 receives respectively this direct voltage, and described direct voltage is converted to respectively different voltage, again by each output interface 14 output.At last according to the difference of the supply power voltage of electronic equipment 300, described electronic equipment 300 is connected to corresponding output interface 14, and then obtains to meet the supply power voltage of demand.Simultaneously, for the output interface 14 that is not equipped with any electronic equipment 300, the operator can be by the corresponding control switch S of operation, to close corresponding field effect transistor Q, thereby stop unnecessary power supply conversion work, and then improve the conversion efficiency of power supply unit 100, and reduce the bulk temperature of described power supply unit 100, reach energy-conservation purpose.
Obviously, power supply unit 100 of the present invention directly obtains power supply from existing AC power 200, and this power supply converted to a plurality of different voltages that satisfy existing demand, export corresponding electronic equipment 300 to by corresponding output interface 14 again, to satisfy the power demands of various electronic 300.Power supply unit 100 of the present invention does not need a plurality of transformers are set, and versatility is stronger, is conducive to integrally-built simplification, miniaturization, and can effectively reduce the manufacturing cost of this power supply unit 100.
Claims (5)
1. power supply unit, comprise input interface, AC/DC converter, some voltage transformation modules and quantity and the corresponding output interface of this voltage transformation module quantity, described input interface is in order to be connected to an AC power, to access an alternating voltage from described AC power, described AC/DC converter is in order to convert described alternating voltage to one direct current voltage, one end of each voltage transformation module all is connected to described AC/DC converter, the other end is connected to corresponding output interface, described voltage transformation module is used for described direct voltage is converted to the voltage of some predetermined different numerical value, and respectively by corresponding output interface output.
2. power supply unit as claimed in claim 1, it is characterized in that: each voltage transformation module comprises field effect transistor, by changing the duty ratio of described field effect transistor, is adjusted to respectively a preset value with the voltage with the output of described field effect end.
3. power supply unit as claimed in claim 2, it is characterized in that: each voltage transformation module comprises a rectifying/filtering circuit, one end of this rectifying/filtering circuit is connected to described AC/DC converter, the other end is connected to corresponding field effect transistor, and described rectifying/filtering circuit carries out providing to described voltage transformation module after rectification/filtering is processed in order to the direct voltage that described AC/DC converter is provided.
4. power supply unit as claimed in claim 2, it is characterized in that: each voltage transformation module also comprises a control switch, described control switch is connected to respectively corresponding field effect transistor, is sent to output interface in order to the voltage of controlling voltage transformation module output.
5. power supply unit as claimed in claim 1, it is characterized in that: described power supply unit comprises mains switch, and described AC power is connected to described AC/DC converter with being connected between the described AC power of break-make and the described AC/DC converter by described mains switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311644 CN103051210A (en) | 2011-10-14 | 2011-10-14 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110311644 CN103051210A (en) | 2011-10-14 | 2011-10-14 | Power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103051210A true CN103051210A (en) | 2013-04-17 |
Family
ID=48063742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110311644 Pending CN103051210A (en) | 2011-10-14 | 2011-10-14 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103051210A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492717A (en) * | 2019-07-01 | 2019-11-22 | 联想(北京)有限公司 | A kind of processing equipment and processing method |
| CN111273756A (en) * | 2020-01-19 | 2020-06-12 | 深圳市创维群欣安防科技股份有限公司 | Mainboard and consumer |
-
2011
- 2011-10-14 CN CN 201110311644 patent/CN103051210A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492717A (en) * | 2019-07-01 | 2019-11-22 | 联想(北京)有限公司 | A kind of processing equipment and processing method |
| CN111273756A (en) * | 2020-01-19 | 2020-06-12 | 深圳市创维群欣安防科技股份有限公司 | Mainboard and consumer |
| CN111273756B (en) * | 2020-01-19 | 2021-08-10 | 深圳创维数字技术有限公司 | Mainboard and consumer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130417 |