CN106953211A - Elongation line socket - Google Patents
Elongation line socket Download PDFInfo
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- CN106953211A CN106953211A CN201710313675.5A CN201710313675A CN106953211A CN 106953211 A CN106953211 A CN 106953211A CN 201710313675 A CN201710313675 A CN 201710313675A CN 106953211 A CN106953211 A CN 106953211A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/68—Structural association with built-in electrical component with built-in fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
- H01R13/7175—Light emitting diodes (LEDs)
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Emergency Protection Circuit Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
Elongation line socket of the present invention, belongs to the technical field that equipment is powered；The technical problem of solution is：The elongation line socket that a kind of security is higher and charge efficiency is higher is provided；The technical scheme used for：Elongation line socket; including protection circuit, power supply indicator display circuit, mu balanced circuit and multiplex roles output circuit; the input of the protection circuit is connected with external input circuit; the output end of the protection circuit is connected with the input of mu balanced circuit; the output end of the mu balanced circuit is connected with the input of multiplex roles output circuit, and the output end of the multiplex roles output circuit is connected with electrical equipment；The power supply indicator display circuit is arranged between the protection circuit and mu balanced circuit.
Description
Technical field
Elongation line socket of the present invention, belongs to the technical field that equipment is powered.
Background technology
Elongation line socket is an essential part in daily life, can be entered for a variety of household appliances and electric tools
Row power supply.
However, widely using with handheld device, in order to be charged to handheld device, the need for meeting life on daytime,
So that proposing higher requirement to the power supply adaptor of elongation line socket, such as：Higher security performance, higher output work
Rate, higher energy conversion rate, relatively low power etc., current elongation line socket can not meet above-mentioned requirements.
The content of the invention
The present invention overcomes the shortcomings of that prior art is present, and technical problem to be solved is：There is provided a kind of security higher
And elongation line socket that charge efficiency is higher.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：Elongation line socket, including protection circuit,
Power supply indicator display circuit, mu balanced circuit and multiplex roles output circuit, the input of the protection circuit and external input electricity
Road is connected, and the output end of the protection circuit is connected with the input of mu balanced circuit, and the output end of the mu balanced circuit with connecing more
The input of mouth output circuit is connected, and the output end of the multiplex roles output circuit is connected with electrical equipment；The power supply instruction
Lamp display circuit is arranged between the protection circuit and mu balanced circuit.
Preferably, the circuit structure of the protection circuit is：Including fuse FRX1, piezo-resistance RV1 and thermistor
RT1, one end of the fuse FRX1 is connected with the zero line L of external input circuit, the other end point of the fuse FRX1
The output terminals A 1 of one end, protection circuit not with piezo-resistance RV1 is connected, the other end of the piezo-resistance RV1 respectively with heat
Quick resistance RT1 one end, the output terminals A 2 of protection circuit are connected, the other end and the external input circuit of the thermistor RT1
Zero line side N be connected.
Preferably, the circuit structure of the power supply indicator display circuit is：Including LED 1, the pole of voltage stabilizing two
Pipe DZ1, resistance R1 and electric capacity C1, the positive pole of the LED 1 negative pole respectively with voltage-regulator diode DZ1, protection electricity
The output terminals A 1 on road, the input B1 of mu balanced circuit are connected, the negative pole of the LED 1 respectively with voltage-regulator diode
DZ1 positive pole, resistance R1 one end are connected, the output end after the other end serial capacitance C1 of the resistance R1 with protection circuit
A2, the input B2 of mu balanced circuit are connected.
Preferably, the circuit structure of the mu balanced circuit is：Including bridge rectifier chip BD1, the bridge rectifier chip
Input B1, the input B2 of mu balanced circuit of BD1 two input pins respectively with mu balanced circuit are connected, the bridge rectifier
Chip BD1 positive output end one end respectively with resistance R11, inductance L1 one end, electric capacity EC1 one end are connected, the electricity
Hinder the R11 other end other end respectively with inductance L1, electric capacity EC1A one end, electric capacity EC1C one end, the one of resistance R12
End, resistance R13 one end, electric capacity C11 one end, the input B3 of the windings of transformer T1 first are connected, and the electric capacity EC1's is another
One end one end respectively with inductance L2, bridge rectifier chip BD1 negative output terminal are connected, the other end of the inductance L2 respectively with
The electric capacity EC1A other end, the electric capacity EC1C other end, resistance R14 one end, the input B6 of the windings of transformer T1 second connect
Connect rear analogue ground；One end, diode D11 after the other end series resistor R15 of the resistance R12 respectively with electric capacity ECA2
Negative pole, power supply chip U1 pin VDD are connected, the other end of electric capacity ECA2 one end respectively with resistance R16, resistance R16A
One end, analogue ground after power supply chip U1 pin GND connections；The other end of the resistance R16 is respectively with resistance R16A's
The other end, resistance R17 one end, transistor Q1 source electrode, power supply chip U1 pin CS are connected, and the resistance R17's is another
End one end respectively with resistance R18, transistor Q1 grid are connected, the other end of the resistance R18 and drawing for power supply chip U1
Pin GATE is connected, and the pin FB of the power supply chip U1 other end respectively with resistance R14, resistance R19 one end are connected, described
Resistance R19 other end input B5 respectively with the windings of transformer T1 second, inductance L13 one end are connected, the inductance L13
The other end be connected with diode D11 positive pole；The other end of the resistance R13 other end respectively with electric capacity C11, resistance
R110 one end is connected, and the other end of the resistance R110 is connected with diode D12 negative pole, the positive pole of the diode D12
Drain electrode respectively with transistor Q1, the input B4 of the windings of transformer T1 first are connected；First output end of the transformer point
Be not connected with synchronous rectification chip U2 pin GND, electric capacity C21 one end, synchronous rectification chip U2A pin GND, it is described same
After step rectification chip U2 pin AE series resistors RAE respectively with the second output end of transformer, resistance RAE1 one end, connect more
The input B7 of mouth output circuit is connected, and the other end of the resistance RAE1 is connected with synchronous rectification chip U2A pin AE, institute
Pin VCC, the synchronous rectification chip U2A pin VCC of the electric capacity C21 other end respectively with synchronous rectification chip U2 is stated to be connected,
Pin D, resistance after the pin DRAIN series resistors RDD of the synchronous rectification chip U2 respectively with synchronous rectification chip U2
RDD1 one end, synchronous rectification chip U2A pin D, the input B8 of multiplex roles output circuit are connected；The resistance RDD1's
The other end is connected with synchronous rectification chip U2A pin DRAIN.
Preferably, the circuit structure of the multiplex roles output circuit is：Including identification chip U4, output interface USB1, defeated
Outgoing interface USB2 and output interface USB3；
The pin DP1 and output interface USB2 of the identification chip U4 data wire negative pole are connected, the identification chip U4
Pin DP2 be connected with output interface USB2 data wire positive pole, the pin DM1 and output interface USB3 of the identification chip U4
Data wire negative pole be connected, the pin DM2 of identification chip U4 earth terminal respectively with output interface USB3, output interface
USB3 data wire positive pole, output interface USB2 earth terminal, output interface USB1 earth terminal, resistance R21 one end, electric capacity
Digital grounding after EC3 one end, electric capacity EC3A one end, the input B7 connections of multiplex roles output circuit；The identification chip
Connect after U4 pin D1 series resistors R22 with output interface USB3 input positive pole, output interface USB2 input positive pole, output
Mouth USB1 input positive pole, the resistance R21 other end, the electric capacity EC3 other end, the electric capacity EC3A other end, multiplex roles output
The input B8 of circuit is connected；The data negative pole phase of the data wire positive pole of the output interface USB1 and the output interface USB1
Even.
The present invention has the advantages that compared with prior art.
The present invention includes：Protection circuit, power supply indicator display circuit, be mu balanced circuit and multiplex roles output circuit；It is logical
Overprotection circuit can play a part of antisurge and lightning protection to elongation line socket, improve the security of the present invention；By steady
Volt circuit improves the comprehensive conversion efficiency of power supply, and the instantaneity of indicating effect is improved by power supply indicator display circuit；
Whole the simple in construction of elongation line socket, practicality are extremely strong.
Brief description of the drawings
The present invention will be further described in detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation for the elongation line socket that the embodiment of the present invention one is provided；
The electrical block diagram for the elongation line socket that Fig. 2 embodiment of the present invention two are provided；
In figure：1 is protection circuit, and 2 be power supply indicator display circuit, and 3 be mu balanced circuit, and 4 be multiplex roles output circuit.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments；Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is the structural representation for the elongation line socket that the embodiment of the present invention one is provided, as shown in figure 1, elongation line socket,
Including protection circuit 1, power supply indicator display circuit 2, mu balanced circuit 3 and multiplex roles output circuit 4, the protection circuit 1
Input is connected with external input circuit, and the output end of the protection circuit 1 is connected with the input of mu balanced circuit 3, described steady
The output end of volt circuit 3 is connected with the input of multiplex roles output circuit 4, the output end and use of the multiplex roles output circuit 4
Electric equipment is connected；The power supply indicator display circuit 2 is arranged between the protection circuit 1 and mu balanced circuit 3.
This implementation one includes：Protection circuit, power supply indicator display circuit, mu balanced circuit and multiplex roles output circuit；It is logical
Overprotection circuit can play a part of antisurge and lightning protection to elongation line socket, improve the security of the present invention；By steady
Volt circuit improves the comprehensive conversion efficiency of power supply, and the instantaneity of indicating effect is improved by power supply indicator display circuit；
Whole the simple in construction of elongation line socket, practicality are extremely strong.
Fig. 2 is the electrical block diagram for the elongation line socket that the embodiment of the present invention two is provided, as shown in Fig. 2 described protect
The circuit structure of protection circuit 1 is：Including fuse FRX1, piezo-resistance RV1 and thermistor RT1, the fuse FRX1's
One end is connected with the zero line L of external input circuit, the other end of the fuse FRX1 respectively with piezo-resistance RV1 one
End, the output terminals A 1 of protection circuit 1 are connected, and the other end of piezo-resistance RV1 one end respectively with thermistor RT1, protect
The output terminals A 2 of protection circuit 1 is connected, and the other end of the thermistor RT1 is connected with the zero line side N of external input circuit.
In the present embodiment two, described protection circuit 1 includes piezo-resistance RV1 and thermistor RT1, can reach anti-wave
Gush the effect with lightning protection.
Specifically, the circuit structure of the power supply indicator display circuit 2 is：Including LED 1, voltage stabilizing two
Pole pipe DZ1, resistance R1 and electric capacity C1, the positive pole of the LED 1 negative pole respectively with voltage-regulator diode DZ1, protection
The output terminals A 1 of circuit 1, the input B1 of mu balanced circuit 3 are connected, the negative pole of the LED 1 respectively with voltage stabilizing two
Pole pipe DZ1 positive pole, resistance R1 one end are connected, defeated with protection circuit 1 after the other end serial capacitance C1 of the resistance R1
Go out to hold the input B2 of A2, mu balanced circuit 3 to be connected；Described power supply indicator display circuit 2 is by the way of capacitance decompression
To realize current limliting, reach that the mode of current limliting has larger difference with traditional resistance of connecting；Power supply in the present embodiment two
Indicator lamp display circuit 2 is by the way of LED 1 and voltage-regulator diode DZ1 are in parallel, to the alternating voltage after step-down
Carry out rectification；Allow power supply indicator realize open it is i.e. bright, that is, close i.e. go out.
Further, the circuit structure of the mu balanced circuit 3 is：Including bridge rectifier chip BD1, the bridge rectifier core
Input B1, the input B2 of mu balanced circuit 3 of piece BD1 two input pins respectively with mu balanced circuit 3 are connected, the bridge-type
Rectification chip BD1 positive output end one end respectively with resistance R11, inductance L1 one end, electric capacity EC1 one end are connected, institute
State the resistance R11 other end other end respectively with inductance L1, electric capacity EC1A one end, electric capacity EC1C one end, resistance R12
One end, resistance R13 one end, electric capacity C11 one end, the input B3 of the windings of transformer T1 first are connected, the electric capacity EC1's
Other end one end respectively with inductance L2, bridge rectifier chip BD1 negative output terminal are connected, the other end difference of the inductance L2
The other end, the electric capacity EC1C other end, resistance R14 one end with electric capacity EC1A, the input B6 of the windings of transformer T1 second
Analogue ground after connection；One end, diode D11 after the other end series resistor R15 of the resistance R12 respectively with electric capacity ECA2
Negative pole, power supply chip U1 pin VDD be connected, the other end of electric capacity ECA2 one end respectively with resistance R16, resistance
Analogue ground after R16A one end, power supply chip U1 pin GND connections；The other end of the resistance R16 respectively with resistance
The R16A other end, resistance R17 one end, transistor Q1 source electrode, power supply chip U1 pin CS are connected, the resistance R17
Other end one end respectively with resistance R18, transistor Q1 grid be connected, the other end and power supply chip of the resistance R18
U1 pin GATE is connected, the pin FB of the power supply chip U1 other end respectively with resistance R14, resistance R19 one end phase
Even, the other end of resistance R19 input B5 respectively with the windings of transformer T1 second, inductance L13 one end are connected, described
The inductance L13 other end is connected with diode D11 positive pole；The other end of the resistance R13 is another with electric capacity C11 respectively
End, resistance R110 one end are connected, and the other end of the resistance R110 is connected with diode D12 negative pole, the diode D12
Positive pole drain electrode respectively with transistor Q1, the input B4 of the windings of transformer T1 first is connected；The first of the transformer is defeated
Go out end be connected respectively with synchronous rectification chip U2 pin GND, electric capacity C21 one end, synchronous rectification chip U2A pin GND,
The second output end after the pin AE series resistors RAE of the synchronous rectification chip U2 respectively with transformer, the one of resistance RAE1
End, the input B7 of multiplex roles output circuit 4 are connected, the other end of the resistance RAE1 and synchronous rectification chip U2A pin
AE is connected, the other end of electric capacity C21 pin VCC respectively with synchronous rectification chip U2, synchronous rectification chip U2A pin
VCC is connected, the pin after the pin DRAI N series resistors RDD of the synchronous rectification chip U2 respectively with synchronous rectification chip U2
D, resistance RDD1 one end, synchronous rectification chip U2A pin D, the input B8 of multiplex roles output circuit 4 are connected；The electricity
The resistance RDD1 other end is connected with synchronous rectification chip U2A pin DRAIN.
The design of mu balanced circuit in the present embodiment two so that the comprehensive conversion efficiency of power supply can reach more than 85%, electricity
Source high conversion efficiency.
Further, the circuit structure of the multiplex roles output circuit 4 is：Including identification chip U4, output interface
USB1, output interface USB2 and output interface USB3；The pin DP1 and output interface USB2 of the identification chip U4 data wire
Negative pole is connected, and the pin DP2 and output interface USB2 of the identification chip U4 data wire positive pole are connected, the identification chip U4
Pin DM1 be connected with output interface USB3 data wire negative pole, the pin DM2 of the identification chip U4 respectively with output interface
USB3 earth terminal, output interface USB3 data wire positive pole, output interface USB2 earth terminal, output interface USB1 ground connection
After end, resistance R21 one end, electric capacity EC3 one end, electric capacity EC3A one end, the input B7 connections of multiplex roles output circuit 4
Digital grounding；Input positive pole, output interface after the pin D1 series resistors R22 of the identification chip U4 with output interface USB3
USB2 input positive pole, output interface USB1 input positive pole, the resistance R21 other end, the electric capacity EC3 other end, electric capacity
The EC3A other end, the input B8 of multiplex roles output circuit 4 are connected；The data wire positive pole of the output interface USB1 and described
Output interface USB1 data negative pole is connected；In the present embodiment two, electricity is serially connected between described analogue ground and digital grounding
Hold CY1.
Elongation line socket of the present invention, superior performance, its no-load power consumption is low, reaches 0.08W, responds the call of national energy-saving；
General power can reach greatly 16.5W, and overall efficiency is high, can reach more than 85%, and described multiplex roles output circuit has knowledge
Other function, can be very good matching, most hand-held terminal device practicality is extremely strong in the market.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
1. elongation line socket, it is characterised in that：Including protection circuit (1), power supply indicator display circuit (2), mu balanced circuit (3)
With multiplex roles output circuit (4), the input of the protection circuit (1) is connected with external input circuit, the protection circuit (1)
Output end be connected with the input of mu balanced circuit (3), the output end of the mu balanced circuit (3) and multiplex roles output circuit (4)
Input be connected, the output end of the multiplex roles output circuit (4) is connected with electrical equipment；The power supply indicator display electricity
Road (2) is arranged between the protection circuit (1) and mu balanced circuit (3).
2. elongation line socket according to claim 1, it is characterised in that：The circuit structure of the protection circuit (1) is：Bag
Include fuse FRX1, piezo-resistance RV1 and thermistor RT1, one end of the fuse FRX1 and the fire of external input circuit
Line end L is connected, the other end of fuse FRX1 one end respectively with piezo-resistance RV1, the output terminals A 1 of protection circuit (1)
It is connected, the other end of piezo-resistance RV1 one end respectively with thermistor RT1, the phase of output terminals A 2 of protection circuit (1)
Even, the other end of the thermistor RT1 is connected with the zero line side N of external input circuit.
3. elongation line socket according to claim 1, it is characterised in that：The electricity of the power supply indicator display circuit (2)
Line structure is：Including LED 1, voltage-regulator diode DZ1, resistance R1 and electric capacity C1, the LED 1
Positive pole negative pole respectively with voltage-regulator diode DZ1, the output terminals A 1 of protection circuit (1), the input B1 phases of mu balanced circuit (3)
Even, the negative pole of the LED 1 positive pole respectively with voltage-regulator diode DZ1, resistance R1 one end are connected, the electricity
It is connected with the output terminals A 2 of protection circuit (1), the input B2 of mu balanced circuit (3) after the other end serial capacitance C1 for hindering R1.
4. elongation line socket according to claim 1, it is characterised in that：The circuit structure of the mu balanced circuit (3) is：Bag
Include the input of bridge rectifier chip BD1, the bridge rectifier chip BD1 two input pins respectively with mu balanced circuit (3)
B1, the input B2 of mu balanced circuit (3) are connected, the positive output end of the bridge rectifier chip BD1 respectively with resistance R11 one
End, inductance L1 one end, electric capacity EC1 one end are connected, the other end of the resistance R11 other end respectively with inductance L1,
Electric capacity EC1A one end, electric capacity EC1C one end, resistance R12 one end, resistance R13 one end, electric capacity C11 one end, transformation
The input B3 of the windings of device T1 first is connected, the other end of electric capacity EC1 one end respectively with inductance L2, bridge rectifier chip
BD1 negative output terminal is connected, the other end of the inductance L2 other end respectively with electric capacity EC1A, the electric capacity EC1C other end,
Analogue ground after resistance R14 one end, the input B6 connections of the windings of transformer T1 second；
One end, diode D11 negative pole after the other end series resistor R15 of the resistance R12 respectively with electric capacity ECA2, power supply
Chip U1 pin VDD is connected, the other end of electric capacity ECA2 one end respectively with resistance R16, resistance R16A one end, electricity
Analogue ground after source chip U1 pin GND connections；The other end of the resistance R16 other end respectively with resistance R16A, electricity
R17 one end, transistor Q1 source electrode, power supply chip U1 pin CS is hindered to be connected, the other end of the resistance R17 respectively with electricity
Hinder R18 one end, transistor Q1 grid to be connected, the other end of the resistance R18 is connected with power supply chip U1 pin GATE,
The pin FB of the power supply chip U1 other ends respectively with resistance R14, resistance R19 one end are connected, and the resistance R19's is another
One end input B5 respectively with the windings of transformer T1 second, inductance L13 one end are connected, the other end of the inductance L13 with
Diode D11 positive pole is connected；
The other end of the resistance R13 other end respectively with electric capacity C11, resistance R110 one end are connected, the resistance R110
The other end be connected with diode D12 negative pole, the drain electrode respectively with transistor Q1 of the positive pole of the diode D12, transformer
The input B4 of the windings of T1 first is connected；
First output end of the transformer is connected with synchronous rectification chip U2 pin GND respectively, electric capacity C21 one end, same
After the pin GND, the synchronous rectification chip U2 that walk rectification chip U2A pin AE series resistors RAE respectively with transformer
Second output end, resistance RAE1 one end, the input B7 of multiplex roles output circuit (4) are connected, and the resistance RAE1's is another
End is connected with synchronous rectification chip U2A pin AE, the pin of the other end of the electric capacity C21 respectively with synchronous rectification chip U2
VCC, synchronous rectification chip U2A pin VCC are connected, and divide after the pin DRAIN series resistors RDD of the synchronous rectification chip U2
Not with synchronous rectification chip U2 pin D, resistance RDD1 one end, synchronous rectification chip U2A pin D, multiplex roles output electricity
The input B8 on road (4) is connected；The other end of the resistance RDD1 is connected with synchronous rectification chip U2A pin DRAIN.
5. elongation line socket according to claim 1, it is characterised in that：The circuit knot of the multiplex roles output circuit (4)
Structure is：Including identification chip U4, output interface USB1, output interface USB2 and output interface USB3；
The pin DP1 and output interface USB2 of the identification chip U4 data wire negative pole are connected, and the identification chip U4's draws
Pin DP2 is connected with output interface USB2 data wire positive pole, the pin DM1 and output interface USB3 of the identification chip U4 number
It is connected according to line negative pole, the pin DM2 of identification chip U4 earth terminal respectively with output interface USB3, output interface USB3
Data wire positive pole, output interface USB2 earth terminal, output interface USB1 earth terminal, resistance R21 one end, electric capacity EC3
Digital grounding after one end, electric capacity EC3A one end, the input B7 connections of multiplex roles output circuit (4)；The identification chip U4
Pin D1 series resistors R22 after with output interface USB3 input positive pole, output interface USB2 input positive pole, output interface
USB1 input positive pole, the resistance R21 other end, the electric capacity EC3 other end, the electric capacity EC3A other end, multiplex roles output electricity
The input B8 on road (4) is connected；The data negative pole of the data wire positive pole of the output interface USB1 and the output interface USB1
It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313675.5A CN106953211B (en) | 2017-05-05 | 2017-05-05 | Extended line socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710313675.5A CN106953211B (en) | 2017-05-05 | 2017-05-05 | Extended line socket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106953211A true CN106953211A (en) | 2017-07-14 |
| CN106953211B CN106953211B (en) | 2022-11-01 |
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ID=59478139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710313675.5A Active CN106953211B (en) | 2017-05-05 | 2017-05-05 | Extended line socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106953211B (en) |
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|---|---|---|---|---|
| CN2117656U (en) * | 1991-09-23 | 1992-09-30 | 孙宁 | Low voltage protector for electric appliances |
| CN2507172Y (en) * | 2001-09-27 | 2002-08-21 | 高德强 | Lightning protector for computer |
| CN204652249U (en) * | 2015-06-19 | 2015-09-16 | 温州市麦特力克电器有限公司 | A kind of USB socket |
| CN205960338U (en) * | 2016-06-14 | 2017-02-15 | 安徽师范大学 | Power extension line that can regularly cut -off |
| CN106487212A (en) * | 2016-12-19 | 2017-03-08 | 裴永君 | The power control circuit of electricity in a kind of time delay |
| CN106487081A (en) * | 2016-12-21 | 2017-03-08 | 江西佰仕通电子科技有限公司 | Mains charger circuit |
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| CN106953211B (en) | 2022-11-01 |
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