CN206193208U - USB power supply unit's output back -off test system and mancarried device - Google Patents
USB power supply unit's output back -off test system and mancarried device Download PDFInfo
- Publication number
- CN206193208U CN206193208U CN201620907470.0U CN201620907470U CN206193208U CN 206193208 U CN206193208 U CN 206193208U CN 201620907470 U CN201620907470 U CN 201620907470U CN 206193208 U CN206193208 U CN 206193208U
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- usb interface
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Abstract
The utility model discloses a USB power supply unit's output back -off test system and mancarried device, the system includes: USB interface module, electronic load module, voltage testing, control module, output back -off judge module and display module as a result, USB interface module leads to the overvoltage detection module and is connected with control module's voltage detecting end, the PWM input of electronic load module is connected with control module's PWM output, the load current input and the USB interface module of electronic load module are connected, control module's compensation sense terminal and output back -off judge module are connected, and its display control end is connected with display module as a result. The utility model discloses can detect USB power supply unit's charging quality, whether testable USB power supply unit's output voltage is up to standard to and whether possess output compensation function, and its simple structure, low cost, nature directly perceived is strong, easily promotes, is applicable to non professional and uses.
Description
Technical field
The utility model is related to USB electric supply installation testing fields, especially a kind of output compensating test of USB electric supply installations
System, and a kind of portable test arrangement based on the system.
Background technology
USB electric supply installations refer to the charging terminal such as including charger and portable power source with USB interface.USB electric supply installations
It is device necessary to smart machine, and with the large-scale application of smart machine, the production firm of USB electric supply installations also gets over
Come more, the yield of USB electric supply installations is also increasing.However, the USB electric supply installation quality sold in the market is irregular not
Together, low-quality USB electric supply installations may influence charge efficiency, or cannot be equipment charge, and severe one causes equipment to burn out, because
This, whether the quality of USB electric supply installations qualified, is extremely important, especially for consumer for, powered USB is chosen
Significant care is needed during device.
Therefore, in consumer when USB electric supply installations are bought, need badly a kind of can enter to the charging quality of USB electric supply installations
The detection means of row detection, to avoid buying bum charging device, and current USB electric supply installations detection means one
As be all a kind of tester suitable for relevant speciality personage, it needs operator to possess certain Electronics knowledge, and purchase
Buy high cost.
And for the laymans such as consumer, vendor, the testing cost of the tester of this specialty is high, and easily behaviour
The property made is poor, and the quality and performance that layman can not be quickly and intuitively to USB electric supply installations make assessment.
Particularly, it is few at present to be detected for whether USB electric supply installations possess output compensation function, USB cable
Screen layer is to reduce the loss of transmission signal simultaneously into inner conductor interference for avoiding interference signal, and whether USB cable has
Standby screen layer is one of important references index of USB cable assessment.
Utility model content
Utility model purpose of the present utility model is：For above-mentioned problem, there is provided a kind of USB electric supply installations
Output compensating test system, and a kind of portable test arrangement based on the system.
The technical solution adopted in the utility model is as follows：A kind of output compensating test system of USB electric supply installations, the system
System includes：Usb interface module, electronic load module, voltage detection module, control module, output compensation judgment module and result
Display module；The usb interface module is connected by voltage detection module with the voltage detecting end of control module, the Electronic Negative
Carry module PWM inputs be connected with the PWM output ends of control module, the load current input of the electronic load module and
Usb interface module is connected, and the compensation test side of the control module is connected with output compensation judgment module, its display control end and
Result display module is connected.
Based on above-described embodiment, further, the system also includes the power supply adjusting module and boost module of series connection, institute
State the output end of boost module to be connected with the operating voltage input of electronic load module, the power supply adjusting module connects with USB
Mouth mold block is connected, and the switch control terminal of the boost module is connected with the boosting rectifier control end of control module, and the power supply adjusts mould
The output end of block is also connected with the power end of control module.
Based on any of the above-described embodiment, further, the system also includes switch module, the electronic load module
Switch control terminal is connected by switch module with usb interface module, the control end of the switch module and the switch of control module
Control end is connected.
Based on any of the above-described embodiment, further, the system also includes Voltage stabilizing module, and the Voltage stabilizing module is connected to
Between usb interface module and voltage detection module.
Based on any of the above-described embodiment, further, the system also includes the memory module being connected with control module, uses
In the magnitude of voltage of stored voltage detection module collection.
Based on any of the above-described embodiment, further, the system also includes the clock module being connected with control module.
Based on any of the above-described embodiment, further, the result display module includes that one or more are used to represent and works as
First LED light of preceding test size of current, one or more are used to represent the charging quality grade under current test electric current
The second LED light, and for represent USB electric supply installations whether possess output compensation the 3rd LED light.
Based on any of the above-described embodiment, further, the usb interface module includes reversible USB male joint connector.
The utility model also proposed a kind of mancarried device, including housing and internal circuit board, the internal circuit board collection
Into there is described in any of the above-described embodiment an output compensating test system, the housing is provided with the matched with usb interface module
One opening and the second opening matched with result display module.
Based on above-described embodiment, further, second opening includes the first son matched with the first LED light
Opening and the second LED light the second son opening for matching and the 3rd son opening matched with the 3rd LED light.
In sum, by adopting the above-described technical solution, the beneficial effects of the utility model are：
The utility model proposes a kind of output compensating test system of USB electric supply installations, using electronic load module pair
The charging performance of USB electric supply installations is detected whether the output voltage that can test out USB electric supply installations is up to standard, can test out
Whether USB electric supply installations possess output compensation function, its simple structure, with low cost, easy to spread, it is adaptable to layman
Use.Test result can be directly shown using LED, intuitive is strong.The utility model also proposed a kind of based on the system
Portable test arrangement, its compact can make common U disk size, be easy to carry, and practicality is high.
Brief description of the drawings
The utility model will be illustrated by example and with reference to the appended drawing, wherein：
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is the circuit diagram of electronic load module in the utility model.
Fig. 3 is circuit theory diagrams of the present utility model.
Fig. 4 is the circuit diagram of boost module in the utility model.
Fig. 5 is appearance schematic diagram of the present utility model.
In figure, 1- housings, 2- first is open, and 3- second is open, of 31- first opening, of 32- second opening, 33- the 3rd
Son opening.
Specific embodiment
This specification（Including any accessory claim, summary）Disclosed in any feature, unless specifically stated otherwise,
Equivalent by other or with similar purpose alternative features are replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalent or similar characteristics.
As shown in Fig. 1, Fig. 1 describes a kind of output compensating test system of USB electric supply installations, and the system includes：
Usb interface module, electronic load module, voltage detection module, control module, output compensation judgment module and result display mould
Block；The usb interface module is connected by voltage detection module with the voltage detecting end ADC of control module, the electronic load
The PWM inputs of module are connected with the PWM output ends of control module, the load current input VCC- of the electronic load module
P is connected with usb interface module, and the compensation test side of the control module is connected with output compensation judgment module, its display control
End is connected with result display module.
Further, the result display module includes that one or more are used to represent the first of current test size of current
LED light, one or more are used to represent the second LED light of the charging quality grade under current test electric current, and
For representing whether USB electric supply installations possess the 3rd LED light of output compensation, result simple, intuitive is shown.
Further, the system also includes the memory module being connected with control module, for stored voltage detection module
The magnitude of voltage of collection.General, memory module can use EEprom modules, such as AT24C02 chips.
Further, the system also includes the clock module being connected with control module, there is provided clock signal, in order to control
Molding block is obtained and stores magnitude of voltage not in the same time, and analysis is compared to the magnitude of voltage not in the same time, and generation is charged
The object command of quality.
The output compensation judgment module includes comparator, the first output end receiving voltage detection module of the comparator the
The voltage value signal for once gathering, the voltage value signal of its second output end receiving voltage detection module currently collection, its output
End output compensation judgment instruction, control module instructs control result display module to show that the USB is supplied according to the output compensation judgment
Whether electric installation possesses output compensation function, such as controls the extinguishing of the 3rd LED light.
Based on above-described embodiment, further, the system also includes the power supply adjusting module and boost module of series connection, institute
The output end of boost module is stated to be connected with the operating voltage input VCC of electronic load module, the power supply adjusting module it is defeated
Enter end to be connected with usb interface module, the switch control terminal of the boost module is connected with the boosting rectifier control end PA3 of control module,
The output end of the power supply adjusting module is also connected with the power end VDD of control module.General, boost module adjusts power supply
The 3.3V voltages of module, rise to 5V voltages.
The power supply adjusting module includes XC6206P332MR chips.
Based on any of the above-described embodiment, further, the system also includes switch module, the electronic load module
Switch control terminal is connected by switch module with usb interface module, the control end of the switch module and the switch of control module
Control end PA2 is connected.
As shown in Fig. 2 circuit diagrams of the Fig. 2 for electronic load module, in the utility model, the electronic load module is main
Including operational amplifier U5, metal-oxide-semiconductor Q5 and sampling resistor R37, wherein, the VCC ends of the operational amplifier U5 and boost module
The connection of 5V voltage output ends, its output end be connected with the grid of metal-oxide-semiconductor Q5, the source electrode company of its input IN- and metal-oxide-semiconductor Q5
Connect, its input IN+ is connected with the PWM output ends of control module, the source electrode of the metal-oxide-semiconductor Q5 is by sampling resistor R37 and ground
Docking, its drain electrode is connected with load current input VCC-P.
As shown in figure 3, the switch module mainly base stage of bag triode Q3 and metal-oxide-semiconductor Q2, the triode Q3 and control
Molding block switch control terminal PA2 connection, its emitter stage with dock, its colelctor electrode, the grid of metal-oxide-semiconductor Q2 and metal-oxide-semiconductor Q2's
Source electrode is connected with usb interface module, and the drain electrode of the metal-oxide-semiconductor Q2 is connected with load current input VCC-P.
The voltage detection module mainly includes the resistance R1 and electric capacity C1 of resistance R3 and parallel connection, one end of resistance R3 with
Usb interface module is connected, and the other end of resistance R3 is connected with the voltage detecting end ADC of control module, and the other end of resistance R3 is also
By resistance R1 with dock.
As shown in figure 4, circuit diagrams of the Fig. 4 for boost module, the boost module is mainly including triode Q7, filter circuit
With DC/DC boost converters U6, the emitter stage of the triode Q7 is connected with the output end of power supply adjusting module, accesses 3.3V electricity
Pressure, the base stage of the triode Q7 is connected with the boosting rectifier control end PA3 of control module, and the colelctor electrode of the triode Q7 is by filter
Wave circuit is connected with the input LX of DC/DC boost converters U6, output end OUT and the electricity of the DC/DC boost converters U6
The operating voltage input VCC connections of sub- load blocks.The boost module may also include Schottky diode D3, the Schottky two
Pole pipe D3 is connected in parallel between the input of DC/DC boost converters U6 and output end.
Based on any of the above-described embodiment, further, the system also includes Voltage stabilizing module, and the Voltage stabilizing module is connected to
Between usb interface module and voltage detection module.General, Voltage stabilizing module can use voltage-regulator diode.
Based on any of the above-described embodiment, further, the usb interface module includes reversible USB male joint connector.
Operation principle of the present utility model is：By the USB females connection of the tested USB electric supply installations of usb interface module insertion
Device, the voltage that 3.3V is provided by Voltage stabilizing module and power supply adjusting module for control module of USB electric supply installations, voltage detecting mould
Block gathers the magnitude of voltage of current USB electric supply installations by Voltage stabilizing module, and is sent to control module by voltage detecting end ADC,
Control module output switch control signal and voltage up control signal, open switch module and boost module so that electronic load mould
BOB(beginning of block) works, control module output pwm signal to electronic load module, the test electric current for adjusting electronic load module
Size.Magnitude of voltage of the control module by current magnitude of voltage and before is compared, and generates the object command of charging quality, control the
One LED light flickers to show current test electric current, and the second LED light of control flickers to show current test electric current
Corresponding charging quality grade；The utility model is also by exporting compensation judgment module comparison voltage the first moment of detection module
The magnitude of voltage of collection and the magnitude of voltage of current collection, if in the case where electronic load module works, the magnitude of voltage of current collection
More than the magnitude of voltage that the first moment gathered, then compensation judgment instruction is exported, flickering for the 3rd LED light of control should with display
Whether USB electric supply installations possess output compensation function.
As shown in figure 4, Fig. 4 describes a kind of mancarried device, including housing 1 and internal circuit board, the internal circuit board
It is integrated with described in any of the above-described embodiment output compensating test system, the housing is provided with and matches with usb interface module
First opening 2 and the second opening 3 matched with result display module.
Based on above-described embodiment, further, second opening 3 includes match with the first LED light first
The the second son opening 32 and the 3rd son that matches with the 3rd LED light that son opening 31 and the second LED light match are opened
Mouth 33.
Volume of the present utility model can make USB flash disk size, and compact is easy to carry.
The utility model is not limited to foregoing specific embodiment.The utility model expands to any in this specification
The new feature of middle disclosure or any new combination, and disclose any new method or process the step of or any new group
Close.
Claims (10)
1. the output compensating test system of a kind of USB electric supply installations, it is characterised in that the system includes：Usb interface module,
Electronic load module, voltage detection module, control module, output compensation judgment module and result display module；The USB interface
Module is connected by voltage detection module with the voltage detecting end of control module, the PWM inputs of the electronic load module with
The PWM output ends connection of control module, the load current input of the electronic load module is connected with usb interface module, institute
The compensation test side for stating control module is connected with output compensation judgment module, and its display control end is connected with result display module.
2. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the system
System also includes the power supply adjusting module and boost module of series connection, the output end of the boost module and the work of electronic load module
Voltage input end is connected, and the output end of the power supply adjusting module is connected with usb interface module, the switch control of the boost module
End processed is connected with the boosting rectifier control end of control module, and the output end of the power supply adjusting module also connects with the power end of control module
Connect.
3. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the system
System also includes switch module, and the switch control terminal of the electronic load module is connected by switch module with usb interface module, institute
The control end of switch module is stated to be connected with the switch control terminal of control module.
4. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the system
System also includes Voltage stabilizing module, and the Voltage stabilizing module is connected between usb interface module and voltage detection module.
5. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the system
System also includes the memory module being connected with control module, for the magnitude of voltage of stored voltage detection module collection.
6. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the system
System also includes the clock module being connected with control module.
7. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the knot
Fruit display module includes that one or more are used to represent the first LED light of current test size of current, one or more use
In the second LED light for representing the charging quality grade under current test electric current, and for whether representing USB electric supply installations
Possesses the 3rd LED light of output compensation.
8. a kind of output compensating test system of USB electric supply installations according to claim 1, it is characterised in that the USB
Interface module includes reversible USB male joint connector.
9. a kind of mancarried device, including housing（1）With output compensating test system described in integrated any one of claim 1-8
Internal circuit board, it is characterised in that：The housing（1）It is provided with the first opening matched with usb interface module（2）And with knot
The second opening that fruit display module matches（3）.
10. a kind of mancarried device according to claim 9, it is characterised in that second opening（3）Including with first
The first son opening that LED light matches（31）The the second son opening matched with the second LED light（32）And with the 3rd
The 3rd son opening that LED light matches（33）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907470.0U CN206193208U (en) | 2016-08-19 | 2016-08-19 | USB power supply unit's output back -off test system and mancarried device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620907470.0U CN206193208U (en) | 2016-08-19 | 2016-08-19 | USB power supply unit's output back -off test system and mancarried device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193208U true CN206193208U (en) | 2017-05-24 |
Family
ID=58737056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620907470.0U Expired - Fee Related CN206193208U (en) | 2016-08-19 | 2016-08-19 | USB power supply unit's output back -off test system and mancarried device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193208U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305425A (en) * | 2020-09-30 | 2021-02-02 | 超威电源集团有限公司 | Method and device for detecting temperature compensation voltage of charger |
| CN113806269A (en) * | 2021-09-14 | 2021-12-17 | 深圳群芯微电子有限责任公司 | USB port constant voltage power supply circuit |
-
2016
- 2016-08-19 CN CN201620907470.0U patent/CN206193208U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112305425A (en) * | 2020-09-30 | 2021-02-02 | 超威电源集团有限公司 | Method and device for detecting temperature compensation voltage of charger |
| CN112305425B (en) * | 2020-09-30 | 2023-10-27 | 超威电源集团有限公司 | Detection method and device for temperature compensation voltage of charger |
| CN113806269A (en) * | 2021-09-14 | 2021-12-17 | 深圳群芯微电子有限责任公司 | USB port constant voltage power supply circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20210819 |