CN107968574A - A kind of home network terminal equipment power adaption system and power supply adaptor - Google Patents
A kind of home network terminal equipment power adaption system and power supply adaptor Download PDFInfo
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- CN107968574A CN107968574A CN201711398102.3A CN201711398102A CN107968574A CN 107968574 A CN107968574 A CN 107968574A CN 201711398102 A CN201711398102 A CN 201711398102A CN 107968574 A CN107968574 A CN 107968574A
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- power supply
- distribution module
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33561—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having more than one ouput with independent control
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a kind of home network terminal equipment power adaption system and power supply adaptor, solve the problems, such as that solving current most users household internal comprehensive information box and first information point only has a supply hub, home network terminal equipment power adaption system includes sequentially connected power supply, main circuit, control circuit and power distribution module；Main circuit is connected with the power supply, for limit power on moment input dash current, rectifying and wave-filtering and according to load need provide DC power supply；Control circuit is connected with the main circuit, and for stablizing output, circuit is protected according to the real-time condition of circuit；Power distribution module is connected with the main circuit, for will direct current output all the way, be distributed at least three tunnel direct current outputs, per road output power according to actual use power consumption dynamically distributes, reach saving equipment investment, equipment is reliable for being electrically connected, and reduces the purpose of the maintenance cost of home networking devices.
Description
Technical field
The present invention relates to electronic power supply field, more specifically, it relates to a kind of home network terminal equipment power adaptation
System and power supply adaptor.
Background technology
With the business and access network change of television network broadcast operator, home network terminal device requirement day is increasingly
Greatly, to carry out two-way services, home networking devices need cable television photo-receiver equipment, set-top box device, fiber to the home number
According to terminal device and home broadband router equipment.In order to meet that home networking devices needs cable television photo-receiver is set
The power supply of standby, set-top box device, fiber to the home data terminal equipment and home broadband router equipment, just needs inside of the house
Want power supply establishing device.
The power supply adaptor generally use Direct Plug-In power supply adaptor of the prior art, Direct Plug-In power supply adaptor be it is small-sized just
Take the power supply conversion equipment of formula electronic equipment and electronic apparatus, generally by shell, transformer, inductance, capacitance, control IC,
The components such as pcb board form, and connection mode is Direct Plug-In, is matched in set-top box, fiber to the home terminal device, household internal extensively
The multiple fields such as constructing communication network terminal device.
But since current radio and television operator home networking devices need cable television photo-receiver equipment, machine top
The power supply of the multiple terminal equipment such as cartridge device, fiber to the home data terminal equipment and home broadband router, these terminals are set
Standby to be substantially put together at the comprehensive information box of subscriber household or the position of first information point, the power supply mode of use is every
As soon as a terminal device is powered with a Direct Plug-In power supply adaptor, at least three power supply establishing devices are needed inside of the house, at the same time
Need to provide at least three supply hubs, realized by power extension socket.
There was only a supply hub in the comprehensive information box in subscriber household or at first information access point at present, can not
Meet the power reguirements of terminal device.User family needs one power extension socket of increase to meet that domestic terminal apparatus is powered
The requirement that adapter inserts, if each household all increases a power extension socket, then a small and medium-sized cities hundreds of thousands even hundreds of
Ten thousand user, because one power extension socket of increase can caused by up to ten million first costs waste.
After two-way services are opened, the stability of equipment and business is crucial, in user family's information box or first, family
Information point, which increases a power extension socket, to cause terminal device to be matched somebody with somebody due to the problems such as artificial origin, power outlet quality
Device is connected the interruption for built on the sand, causing television services with extension socket, influences safe broadcast；Also result in two-way services at the same time
Interrupt, influence the experience of user, huge maintenance cost is brought to radio and TV operator.
Therefore, the prior art has much room for improvement.
The content of the invention
The object of the present invention is to provide a kind of home network terminal equipment power adaption system and power supply adaptor, reach section
Equipment investment is saved, equipment is reliable for being electrically connected, and reduces the purpose of the maintenance cost of home networking devices.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of home network terminal equipment power adaption system, wherein, including：Power supply, main circuit, control circuit and electricity
Source distribution module；
Power supply is used to connect alternating current；
The main circuit is connected with the power supply, for limiting dash current, the rectifying and wave-filtering of the moment input that powers on
And needed to provide DC power supply according to load；
The control circuit is connected with the main circuit, and for stablizing output, circuit is carried out according to the real-time condition of circuit
Protection；
The power distribution module is connected with the main circuit, for will direct current output all the way, it is defeated to be distributed at least three road direct currents
Go out, per road output power according to actual use power consumption dynamically distributes.
A kind of home network terminal equipment power adaption system, wherein：The main circuit includes sequentially connected
Current rectifying and wave filtering circuit, exchange produces and detection circuit and DC output circuit；AC power is obtained by current rectifying and wave filtering circuit
DC voltage, the voltage are added to control circuit through transformer T1 all the way, and another way obtains starting voltage to power supply point after decompression
With module for power supply.
A kind of home network terminal equipment power adaption system, wherein：The current rectifying and wave filtering circuit includes being used for
Alternating current is changed into the rectifier bridge B1, the 4th resistance R4 for overload protection and the first capacitance for filtering of direct current
C1, described 4th resistance R4 one end is connected to rectifier bridge B1, the other end is connected to the exchange generation and detection circuit 12, described
First capacitance C1 one end is connected to rectifier bridge B1, other end ground connection.
A kind of home network terminal equipment power adaption system, wherein：The exchange produces and detection circuit 12
The 3rd capacitance C3 including being connected to rectifier bridge B1, and the 5th resistance R5 being connected with the 3rd capacitance C3, the 3rd capacitance
One end of C3 is connected to the 4th resistance R4 one end, the other end is connected to transformer T1 input terminals one end by the 5th resistance R5.
A kind of home network terminal equipment power adaption system, wherein：The exchange produces and detection circuit 12
Further include transformer T1, the second capacitance C2, the 3rd resistor R3, the second capacitance C2 in parallel with the second capacitance C2 and the 3rd electricity
One end is connected to the first diode D1 after resistance R3 parallel connections, the other end is connected to input terminal one end of transformer T1, the transformer
Another input terminal of T1 is connected to the other end of the first diode D1.
A kind of home network terminal equipment power adaption system, wherein：The DC output circuit 13 includes dividing
The the second diode D2 and the 3rd diode D3 not being connected with the transformer T1 output terminals, the second diode D2 its
Wherein an output terminal, the other end that middle one end connects the transformer T1 are connected to the power distribution module 30；Described 3rd
Another output terminal, the other end that wherein one end of diode D3 connects the transformer T1 are connected to the power distribution module
30；The second diode D2 and the 3rd diode D3 are by the DC power transmission after rectification to power distribution module 30.
A kind of home network terminal equipment power adaption system, wherein：The power distribution module will be straight all the way
Stream output is divided into three tunnel direct current outputs, and the power distribution module 30 is connected with the 4th capacitance C4, the 4th capacitance C4's
The other end is connected to the common ground end of transformer T1.
A kind of home network terminal equipment power adaption system, wherein：The control circuit 20 includes switching tube
Q1, the base stage of the switching tube Q1 are connected with the 4th resistance R4 one end, and switching tube (Q1) emitter passes through first resistor R1
Ground connection, the switching tube Q1 collectors C are connected to first diode D1 one end.
A kind of power supply adaptor, including adaptor body, wherein, further include：A kind of home network terminal equipment
Power adaption system, the power supply of the home network terminal equipment power adaption system, main circuit, control circuit are set
Put in the adaptor body, the adaptor body is connected to power distribution module by a connecting line, and power supply is set
Plug is equipped with to be used to connect alternating current.
The power supply adaptor, wherein, the external at least three road D. C. output plugs of the power distribution module, power supply point
Be provided with module self-detection circuit be used for detect load need output voltage or electric current, automatic adjustment often exports all the way,
Per road output can automatic adaptation load need export 5-12V actual output voltage.
In conclusion the invention has the advantages that：By the way that direct current output three tunnel direct current outputs will be changed into all the way, make
Obtaining power supply adaptor only needs a supply hub, so as to save the input of equipment so that equipment is reliable for being electrically connected, and drops
The low maintenance cost of home networking devices.
Brief description of the drawings
Fig. 1 is power supply adaptor allomeric function functional block diagram in the embodiment of the present invention.
Fig. 2 is the integrated circuit figure of power supply adaptor system in the present embodiment.
Fig. 3 is the overall structure diagram of power supply adaptor in the embodiment of the present invention.
Fig. 4 is the top view of adaptor body in the embodiment of the present invention.
Fig. 5 is the bottom view of adaptor body in the embodiment of the present invention.
Embodiment
The present invention is described in further detail below in conjunction with attached drawing.
This specific embodiment is only explanation of the invention, it is not limitation of the present invention, people in the art
Member as needed can make the present embodiment the modification of no creative contribution after this specification is read, but as long as at this
All protected in the right of invention be subject to Patent Law.
A kind of home network terminal equipment power supply adaptor of the embodiment of the present invention, as shown in Figure 1, Fig. 1 is the present embodiment
Middle power supply adaptor allomeric function functional block diagram, home network terminal equipment power supply adaptor described in the present embodiment include connecting successively
The adaptor body 40 and power distribution module 30 connect.Adaptor body 40 in the present embodiment is that electric main is switched to 5-
12V voltages, as shown in Figure 1, this preferred embodiment is that input 220V AC voltage is changed into the DC voltage of 12V, output is total
Electric current is 2A, is divided into by power distribution module 30 exemplified by three road DC12V outputs and illustrating, as shown in Figure 1, theory specific as follows
It is bright.
As shown in Fig. 2, Fig. 2 is the integrated circuit figure of power supply adaptor system in the present embodiment, power supply is fitted in the present embodiment
Orchestration system includes power supply 50, main circuit 10, control circuit 20 and power distribution module 30.Wherein, by the power supply
Power supply 50, main circuit 10, control circuit 20 are arranged in the adaptor body 40, and power distribution is connected to by a connecting line
Module 30 just forms the power supply adaptor of embodiment illustrated in fig. 1 of the present invention.Power distribution module described in the embodiment of the present invention 30
Can external at least three road D. C. output plugs, the present invention it is preferred that can set the output of every road can automatic adaptation load need it is defeated
Go out the actual output voltage of 5-12V.What i.e. power distribution module 30 can first detect load needs output voltage or electric current, automatically
Adjust per exporting all the way, be user-friendly.Be provided with power distribution module self-detection circuit be used for detect load need
Want output voltage or electric current, automatic adjustment per exporting all the way, per road output can automatic adaptation load need to export the reality of 5-12V
Output voltage.Specific embodiment is as follows：
Power supply 50 is provided with plug and is used to connect alternating current, such as connection 220V alternating currents.
The main circuit 10 is connected with the power supply, for limiting the dash current for the moment input that powers on, mistake
Clutter existing for filter power grid and the clutter for hindering the machine to produce feed back to power grid, are smoother by the direct rectification of power grid alternating current
Direct current, according to load needs, there is provided reliable and stable direct current.
The control circuit 20 is connected with the main circuit, for stablizing output, according to the real-time condition of circuit to electricity
Protected on road.
The power distribution module 30 is connected with the main circuit 10, for that DC12V/2A will export all the way, is distributed into three
Road DC12V direct current outputs, the utilization rate of power consumption according to the power consumption dynamically distributes of actual use, can be improved per road output power,
Total power consumption is no more than 24W.
The main circuit 10 includes sequentially connected current rectifying and wave filtering circuit 11, exchange produces and detection circuit 12 and direct current
Output circuit 13；AC power 220V obtains DC voltage 12V by current rectifying and wave filtering circuit 11, and the voltage is all the way through transformer T1
Control circuit 20 is added to, another way obtains startup voltage after decompression and powers to power distribution module 30.
As shown in Fig. 2, the current rectifying and wave filtering circuit 11 includes being used to alternating current be changed into the rectifier bridge B1 of direct current, is used for
4th resistance R4 of overload protection and the first capacitance C1 for filtering, described 4th resistance R4 one end are connected to rectifier bridge
B1, the other end are connected to that the exchange produces and detection circuit 12, described first capacitance C1 one end are connected to rectifier bridge B1, another
End ground connection.
The exchange produces and detection circuit 12 includes being connected to the 3rd capacitance C3 of rectifier bridge B1, and with the 3rd capacitance
One end of 5th resistance R5 of C3 connections, the 3rd capacitance C3 are connected to the 4th resistance R4 one end, the other end passes through the 5th electricity
Resistance R5 is connected to transformer T1 input terminals one end.
As shown in Fig. 2, the exchange produces and detection circuit 12 further includes transformer T1, the electricity of the second capacitance C2 and second
Hold C2 parallel connections 3rd resistor R3, after the second capacitance C2 is in parallel with 3rd resistor R3 one end be connected to the first diode D1,
The other end is connected to input terminal one end of transformer T1, and another input terminal of the transformer T1 is connected to the first diode D1's
The other end.
The DC output circuit 13 include the second diode D2 for being connected respectively with the transformer T1 output terminals and
Wherein one end of 3rd diode D3, the second diode D2 connect wherein an output terminal, the other end of the transformer T1
It is connected to the power distribution module 30；Wherein one end of the 3rd diode D3 connects another output of the transformer T1
End, the other end are connected to the power distribution module 30；The second diode D2 and the 3rd diode D3 will be straight after rectification
Galvanic electricity is transferred to power distribution module 30.
The power distribution module 30 is integrated circuit, including control IC, power distribution module 30 will direct current outputs all the way
It is divided at least three tunnel direct current outputs, the present embodiment as shown in Figure 2 is divided into three tunnel direct current outputs, the company of the power distribution module 30
The 4th capacitance C4 is connected to, the other end of the 4th capacitance C4 is connected to the common ground end of transformer T1.
As shown in Fig. 2, the control circuit 20 includes the base stage and the 4th resistance R4 mono- of switching tube Q1, the switching tube Q1
End connection, the emitter of the switching tube Q1 are grounded by first resistor R1, and the collector of the switching tube Q1 is connected to first
Diode D1 one end.
The operation principle of the embodiment of the present invention：220V AC voltage is rectified, and filtering obtains 300V DC voltages, the voltage
Switching tube Q1 is added to through transformer T1 all the way, another way obtains startup voltage after decompression and powers to power distribution module 30, and
The output of 5V reference voltages is produced from 30 inside IC pedestal generators of power distribution module.Output current is produced on transformer T1
Raw induced voltage, through magnetic core be coupled to the induced voltage produced on foot winding through the second diode D2, the 3rd diode D3 and
12V DC voltage output is obtained after 4th capacitance C4 rectifying and wave-filterings.
To ensure output voltage stabilization, output terminal 12V output voltages carry out error sampling, and sampling voltage is carried out by control circuit 20
Compare and amplify with error, the width of output pulse is changed by the internal integrated circuit of control circuit 20, switchs switching tube Q1
Time changes, so as to achieve the purpose that to adjust output voltage.After such a feedback control procedure, finally make output
Voltage stabilization is on 12V.
Over-voltage over-current protection all the way is additionally provided with the circuit：Voltage is obtained after the rectified filtering of induced voltage of transformer T1
Send to power distribution module 30, to maintain power distribution module 30 to work normally, wherein 300V voltages supply conduct through decompression
Start voltage.
When certain reason causes output voltage to raise, the voltage of power distribution module 30 will also raise, when the voltage liter
During up to more than 22V, diode by reverse breakdown, cause 30 overcurrent protection end of power distribution module voltage be increased to lV with
On, 30 inside IC of power distribution module exports the pulse of shut-off at this time, circuit is stopped, reaches the mesh of overvoltage protection
's.
When certain reason makes switching tube Q1 electric currents excessive, stream sample resistance both end voltage is taken in the S poles of switching tube Q1
Will rise, when the voltage is increased to make the voltage at 30 overcurrent protection end of power distribution module be higher than 1V, will also cut off the power point
Overcurrent protection is played with the output of module 30.Resistance that the D poles of switching tube Q1 are connect, capacitance composition peak absorbing circuit, it is right
The spike inductive impulse produced during switching tube Q1 ends on the winding of T1 is absorbed, and prevents that switching tube Q1 is breakdown.
As shown in Fig. 3 to 5, attaching plug 42 is installed on adaptor body 40 and is inlaid with LED light 41, adaptor body
40 enclosure materials use fire resistant fire proofing, its shell uses PC+ABS plastics, has excellent moulding processability,
Good fluidity, intensity is higher, and material is easy to process, and processing dimension stability and lustrous surface are good, and easy application, coloring, may be used also
To carry out the suitability for secondary processing such as spray metal, plating, welding and bonding.
The present invention is inputted using AC 220V all the way, it is only necessary to which a supply hub, solves current most users family
Internal comprehensive information box and first information point only have the problem of supply hub.
Extra increase expansion of power supply insert row is not required, saves equipment investment, because output is using three road DC12 outputs, equipment
It is reliable for being electrically connected, there is provided the reliability of domestic terminal apparatus power supply, reduces the maintenance cost of home networking devices.
Three road DC12V outputs are divided into by power distribution module 30, establishing is small, inserts beauty, also, export per road
Power according to the power consumption dynamically distributes of actual use, can improve the utilization rate of power consumption.
In conclusion the invention has the advantages that：By the way that direct current output three tunnel direct current outputs will be changed into all the way, make
Obtaining power supply adaptor only needs a supply hub, so as to save the input of equipment so that equipment is reliable for being electrically connected, and drops
The low maintenance cost of home networking devices.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (4)
1. a kind of home network terminal equipment power adaption system, it is characterized in that, including：Power supply, main circuit, control circuit
And power distribution module；
Power supply is used to connect alternating current；
The main circuit is connected with the power supply, for limiting dash current, the rectifying and wave-filtering of the moment input that powers on
And needed to provide DC power supply according to load；
The control circuit is connected with the main circuit, and for stablizing output, circuit is carried out according to the real-time condition of circuit
Protection；
The power distribution module is connected with the main circuit, for will direct current output all the way, it is defeated to be distributed at least three road direct currents
Go out, per road output power according to actual use power consumption dynamically distributes；
The main circuit includes sequentially connected current rectifying and wave filtering circuit, exchange produces and detection circuit and DC output circuit；
AC power obtains DC voltage by current rectifying and wave filtering circuit, and the voltage is all the way through transformer（T1）Control circuit is added to, it is another
Road obtains startup voltage after decompression and gives power distribution module for power supply；
The current rectifying and wave filtering circuit includes the rectifier bridge (B1) for alternating current being changed into direct current, for overload protection the 4th
Resistance (R4) and the first capacitance (C1) for filtering, described 4th resistance (R4) one end are connected to rectifier bridge (B1), another
End is connected to that the exchange produces and detection circuit (12), described first capacitance (C1) one end are connected to rectifier bridge (B1), another
End ground connection；
The exchange produces and detection circuit（12）Including being connected to rectifier bridge（B1）The 3rd capacitance（C3）, and with the 3rd electricity
Hold (C3）5th resistance of connection（R5）, the 3rd capacitance（C3）One end be connected to the 4th resistance (R4) one end, the other end
Transformer (T1 is connected to by the 5th resistance (R5)）Input terminal one end；
The exchange produces and detection circuit（12）Further include transformer（T1), the second capacitance (C2), with the second capacitance (C2) simultaneously
The 3rd resistor (R3) of connection, one end is connected to the first diode after second capacitance (C2) is in parallel with 3rd resistor (R3)
(D1), the other end is connected to input terminal one end of transformer (T1), and another input terminal of the transformer (T1) is connected to first
The other end of diode (D1)；
The DC output circuit (13) include the second diode (D2) for being connected respectively with the transformer (T1) output terminal with
And the 3rd diode (D3), wherein one end of second diode (D2) connect wherein one output of the transformer (T1)
End, the other end are connected to the power distribution module (30)；Wherein one end of 3rd diode (D3) connects the transformation
Another output terminal, the other end of device (T1) are connected to the power distribution module (30)；Second diode (D2) and the 3rd
Diode (D3) gives the DC power transmission after rectification to power distribution module (30)；
The power distribution module direct current output will be divided into three tunnel direct current outputs, the connection of the power distribution module (30) all the way
There is the 4th capacitance (C4), the other end of the 4th capacitance (C4) is connected to the common ground end of transformer (T1)；
The control circuit (20) includes switching tube (Q1), and the base stage of the switching tube (Q1) connects with the 4th resistance (R4) one end
Connect, switching tube (Q1) emitter is grounded by first resistor (R1), and switching tube (Q1) collector (C) is connected to first
Diode (D1) one end.
2. home network terminal equipment power adaption system according to claim 1, it is characterized in that, power distribution module is set
Per road output can automatic adaptation load need export 5-12V actual output voltage；I.e. power distribution module can first detect load
Need output voltage or electric current, automatic adjustment per exporting all the way；Self-detection circuit is provided with power distribution module to be used for
Detection load needs output voltage or electric current, automatic adjustment per exporting all the way, per road output can automatic adaptation load need it is defeated
Go out the actual output voltage of 5-12V.
3. a kind of power supply adaptor, including adaptor body, it is characterized in that further including：As described in claim 1-2 any one
A kind of home network terminal equipment power adaption system, the power supply of the home network terminal equipment power adaption system
Power supply, main circuit, control circuit are arranged in the adaptor body, and the adaptor body is connected to electricity by a connecting line
Source distribution module, power supply are provided with plug and are used to connect alternating current.
4. power supply adaptor according to claim 3, it is characterised in that external at least three tunnels of the power distribution module are straight
Flow output plug, be provided with power distribution module self-detection circuit be used for detect load need output voltage or electric current, oneself
It is dynamic to adjust per exporting all the way, per road output can automatic adaptation load need to export the actual output voltage of 5-12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398102.3A CN107968574B (en) | 2017-12-21 | 2017-12-21 | Power adapter system and power adapter for home network terminal equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711398102.3A CN107968574B (en) | 2017-12-21 | 2017-12-21 | Power adapter system and power adapter for home network terminal equipment |
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| Publication Number | Publication Date |
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| CN107968574A true CN107968574A (en) | 2018-04-27 |
| CN107968574B CN107968574B (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711398102.3A Active CN107968574B (en) | 2017-12-21 | 2017-12-21 | Power adapter system and power adapter for home network terminal equipment |
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| JP2011087388A (en) * | 2009-10-14 | 2011-04-28 | Daikin Industries Ltd | Flyback switching power supply circuit |
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