CN205142039U - Power supply - Google Patents
Power supply Download PDFInfo
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- CN205142039U CN205142039U CN201520963140.9U CN201520963140U CN205142039U CN 205142039 U CN205142039 U CN 205142039U CN 201520963140 U CN201520963140 U CN 201520963140U CN 205142039 U CN205142039 U CN 205142039U
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- direct current
- power supply
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Abstract
The utility model discloses a power supply, include: input module for switch -on external power source, a filter module for the alternating current of carrying input module carries out the filtering of ripple signal, a rectifier module for the alternating current rectification of carrying a filter module is the direct current, and carries out the smoothness to the direct current after the rectification and handle, switch voltage stabilizing module for the direct current of carrying a rectifier module turns into the alternating current, and to the alternating voltage processing of stepping down, the 2nd rectifier module for be the direct current with the alternating current rectification of switch voltage stabilizing module conversion, the 2nd filter module for the direct current of carrying rectifier module carries out the filtering of ripple signal, the output modul, output module is used for putting through external equipment, to its power supply. Whole power supply is required 24V direct current with final change of forceful electric power high pressure, and whole structural design is reasonable, and the security performance is high, and satisfies wide power demand, and application scope extensively.
Description
Technical field
The utility model relates to a kind of power supply unit.
Background technology
Today of electronic technology develop rapidly, power electronic technology is more and more subject to people's attention, and wherein the update of power technology has promoted the development of associated electronic device and components and parts more.No matter be daily life or hyundai electronics war, power-supply system is as its power source, and its status and importance are self-evident.
Power supply unit is the device providing power to electronic equipment, whether the size of power, electric current and voltage are stablized, to directly have influence on performance and the life-span of terminal use equipment, current existing power supply supply is in order to the whole voltage swing needed for terminal equipment of outside High Pressure Electro Control, in designed power supply unit, associated circuit is many, circuit is complicated and power consumption is high, adds production cost, and when using, potential safety hazard is large.
Utility model content
In order to solve the problem, the utility model provides a kind of power supply unit.
The utility model for the adopted technical scheme that solves the problem is: a kind of power supply unit, comprising:
Input module, described input module is for connecting external power source;
First filtration module, described first filtration module is used for the filtering alternating current of input module conveying being carried out to ripple signal;
First rectification module, it is direct current that described first rectification module is used for the AC rectification of the first filtration module conveying, and to the smoothing process of the direct current after rectification;
Switch voltage-stabilizing module, it is alternating current that described switch voltage-stabilizing module is used for the DC conversion of the first rectification module conveying, and carries out step-down process to alternating voltage;
Second rectification module, it is direct current that described rectification module is used for the AC rectification of switch voltage-stabilizing module converter;
Second filtration module, described second filtration module is used for the filtering direct current of rectification module conveying being carried out to ripple signal;
Output module, described output module, for connecting external equipment, is powered to it.
Input module is for connecting outside forceful electric power alternating current, first filtration module carries out the filtering of ripple to the forceful electric power alternating current that input is come in, the conversion between alternating current and direct current is carried out again by the first rectification module, direct current after conversion enters into switch voltage-stabilizing module, direct current after conversion can be changed through one or many transformation (step-down process) and move as alternating current by described switch voltage-stabilizing module, by judging that the size of this alternating voltage and rated voltage carries out in-line power/power down process, second rectification module is converted to direct current to the alternating current after transformation, direct current after conversion carries out the filtering of ripple signal through the second filtration module, be connected on external equipment by output module, galvanic supply is carried out to external equipment.
Preferably, described first filtration module comprises the first inductance and the first electric capacity; Described second filtration module comprises the second inductance and the second electric capacity.
Preferably, described first rectification module comprises rectistack and the 3rd electric capacity, and alternating current is converted to direct current by described rectistack, and described 3rd capacitor discharge can make the direct current after rectification more level and smooth.
Preferably, described switch voltage-stabilizing module comprises switch transformer, voltage checking chip, field effect transistor, the 4th electric capacity and fin; Described switch transformer is used for raw DC voltage to be treated to alternating current through step-down; Described voltage checking chip controls the work of field effect transistor, when the alternating current voltage after switch transformer transformation is lower than rated voltage, then voltage checking chip controlling filed effect pipe work charging causes it to reach rated voltage then to stop power supply, when the voltage that voltage checking chip detects equals rated voltage, then field effect transistor is in resting state; Described fin is used for carrying out radiating treatment to the heat produced in transformation process, avoids localized hyperthermia to cause damage and the fault of element.
Preferably, described second rectification module comprises rectifier diode, and it is direct current that described rectifier diode is used for the AC rectification of final transformation process.
The beneficial effect that technical scheme described in the utility model is brought is: the utility model passes through external high pressure forceful electric power through rectifying and wave-filtering, regulated transformer is low pressure, filtering outputs to exterior terminal equipment, guarantee the supply of external power source, further, when adopting field effect transistor to guarantee that voltage is lower than rated voltage after transformation, work charging can be opened, otherwise, field effect transistor is in resting state, conserve energy, extend the useful life of element, further, switch voltage-stabilizing module is adopted to be mainly used in isolation voltage, i.e. onrelevant loop between the forceful electric power voltage of input and the low voltage voltage needed for output, protection personal safety, and meet wide power demand, applied widely.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the utility model power supply unit;
Fig. 2 is the utility model power supply unit specific embodiment three-dimensional structure diagram.
Embodiment
Below in conjunction with specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of power supply unit is provided, it comprises input module 1, first filtration module 2, first rectification module 3, switch voltage-stabilizing module 4, second rectification module 5, second filtration module 6, output module 7, described input module 1 is connected with outside forceful electric power, the external exterior terminal of described output module 7 uses equipment, for it provides power supply.
As shown in Figure 2, be the specific embodiment of structured flowchart shown in Fig. 1, wherein in each module, concrete element is arranged about base plate Central Symmetry, certainly, according to the actual requirements, each module component can also according to copying, the mode such as mirror image, array arranges.Wherein input module 1 is outside forceful electric power inlet interface; First filtration module 2 comprises the first inductance 21 and the first electric capacity 22, and this first electric capacity 22 can be multiple as required; First rectification module 3 comprises rectistack 31 and the 3rd electric capacity 32; Switch voltage-stabilizing module 4 comprises fin 41, field effect transistor 42, the 4th electric capacity 43, voltage checking chip 44 and switch transformer 45; Second rectification module 5 comprises rectifier diode 51; Second filtration module comprises the second inductance 61 and the second electric capacity 62; Output module 7 is 24V direct current outlet interface.
The power supply unit of the present embodiment shown in Fig. 2 specifically works in such a way: after connecting outside forceful electric power by outside forceful electric power inlet interface, transmission forceful electric power alternating current is as far as possible interference signal through the first filtration module 2 filtering, specifically, electric capacity has " hinders direct current, logical interchange " effect, and inductance has " logical direct current, resistance exchanges " effect, first inductance 21 and the first electric capacity 22 combine and the interference signal passed through are become heat energy or magnetic strength consumes, be filtered into pure alternating current to pass through, pure alternating current through rectistack 31 rectification be direct current, when in switching process, if when alternating current instability, then the 3rd electric capacity 32 direct current after making rectification that can discharge is level and smooth, direct current through over commutation enters into switch transformer 45, secondary altemating current is turned into through elementary step-down through switch transformer 45, secondary altemating current forms whole level alternating current through repeatedly step-down process, if when now this ultimate alternating voltage is lower than rated voltage (getting 24V), then voltage checking chip 44 controls field effect transistor 42 charging that works and causes it to reach rated voltage, certainly, if when this ultimate alternating voltage just in time equals rated voltage (getting 24V), then field effect transistor is in resting state, this ultimate alternating current exports and enters into rectifier diode 51, this ultimate alternating current rectification is direct current by rectifier diode 51, the filter action of the direct current after rectification the second inductance 61 and second electric capacity 62 in the second filtration module, remove interference signal, finally pure direct current is exported by 24V direct current line outlet,
In process, fin 41 is for carrying out radiating treatment to the heat produced in switch voltage-stabilizing process.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model; can not assert that concrete enforcement of the present utility model is confined to these explanations; for the utility model person of ordinary skill in the field; without departing from the concept of the premise utility; some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. a power supply unit, is characterized in that: comprising:
Input module, described input module is for connecting external power source;
First filtration module, described first filtration module is used for the filtering alternating current of input module conveying being carried out to ripple signal;
First rectification module, it is direct current that described first rectification module is used for the AC rectification of the first filtration module conveying, and to the smoothing process of the direct current after rectification;
Switch voltage-stabilizing module, it is alternating current that described switch voltage-stabilizing module is used for the DC conversion of the first rectification module conveying, and carries out step-down process to alternating voltage;
Second rectification module, it is direct current that described second rectification module is used for the AC rectification of switch voltage-stabilizing module converter;
Second filtration module, described second filtration module is used for the filtering direct current of rectification module conveying being carried out to ripple signal;
Output module, described output module, for connecting external equipment, is powered to it.
2. power supply unit according to claim 1, is characterized in that: described first filtration module comprises the first inductance and the first electric capacity; Described second filtration module comprises the second inductance and the second electric capacity.
3. power supply unit according to claim 1, is characterized in that: described first rectification module comprises rectistack and the 3rd electric capacity.
4. power supply unit according to claim 1, is characterized in that: described switch voltage-stabilizing module comprises switch transformer, voltage checking chip, field effect transistor, the 4th electric capacity and fin; Described switch transformer is used for carrying out step-down process to voltage; Described voltage checking chip controls the work of field effect transistor.
5. power supply unit according to claim 1, is characterized in that: described second rectification module comprises rectifier diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520963140.9U CN205142039U (en) | 2015-11-26 | 2015-11-26 | Power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520963140.9U CN205142039U (en) | 2015-11-26 | 2015-11-26 | Power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205142039U true CN205142039U (en) | 2016-04-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520963140.9U Active CN205142039U (en) | 2015-11-26 | 2015-11-26 | Power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205142039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113961459A (en) * | 2021-10-25 | 2022-01-21 | 四川虹美智能科技有限公司 | Intelligent product testing system |
-
2015
- 2015-11-26 CN CN201520963140.9U patent/CN205142039U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113961459A (en) * | 2021-10-25 | 2022-01-21 | 四川虹美智能科技有限公司 | Intelligent product testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230718 Address after: Area a, 2 / F, No.38, Lane 328, Hengyong Road, Jiading District, Shanghai, 201800 Patentee after: SHANGHAI ZHEHONG ROBOT AUTOMATION CO.,LTD. Address before: 201821 Factory 1, No. 2599 Jia'an Road, Jiading District, Shanghai Patentee before: Han Zhengqiang |