CN208848054U - A kind of tester of multichannel QC3.0 fast charge agreement - Google Patents
A kind of tester of multichannel QC3.0 fast charge agreement Download PDFInfo
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- CN208848054U CN208848054U CN201820626484.4U CN201820626484U CN208848054U CN 208848054 U CN208848054 U CN 208848054U CN 201820626484 U CN201820626484 U CN 201820626484U CN 208848054 U CN208848054 U CN 208848054U
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Abstract
The utility model discloses a kind of testers of multichannel QC3.0 fast charge agreement, including host computer, at least one test product, the input interface equal with test product quantity, the voltage protocol circuit equal with input interface quantity, the single-chip microcontroller equal with voltage protocol circuit quantity and the isolation communicating circuit equal with single-chip microcontroller quantity；Test product, input interface, voltage protocol circuit, single-chip microcontroller and isolation communicating circuit correspond electrical connection；All isolation communicating circuits all with upper mechatronics.The utility model supports multiple channels to use fast charge protocol test simultaneously, artificial detection station is integrated into Auto-Test System, the test that different voltages by communicating settable QC3.0 agreement with host computer require, effectively it is directed to the performance detection of charger of more USB output ports with QC3.0 fast charge agreement, it reduces cost of labor and improves quality, production efficiency.
Description
Technical field
The utility model relates to the field of test technology, and in particular to a kind of tester of multichannel QC3.0 fast charge agreement.
Background technique
The output QC3.0 fast charge port of charger product is that have a kind of fast charging association with charging of Quick Charge
View.The fast charge agreement of correct D+D- is to identify that different mobile phones carry out safe fast charge charging.It can be with positive and negative 0.2V for one
A gear is adjusted output.A suitable voltage for reaching mobile phone carries out high-voltage charge.In order to improve product quality, need
The product is effectively triggered and tested each voltage gear.Traditional test is led to using the mobile phone for having fast charge agreement
The mode manually estimated is crossed, is tested.This mode is at high cost, needs to configure multiple mobile phones with fast charge agreement and is surveyed
It tries, there are test blindspots in test, and can completely does not test out the entire output voltage range of QC3.0.Defective products is caused not have
It is detected.Portioned product is that the fast charge port for having multiple QC3.0 exports again.At this moment needing one kind can be to such
Product carries out multioutlet test simultaneously.Test request can be effectively realized using the tester of multichannel QC3.0 fast charge agreement.
Utility model content
In view of this, the purpose of this utility model is to provide one to produce the power supply product test needs with fast charge agreement
The tester of a fast charge output port to charger solves in production using manually incomplete using testing caused by mobile phone mode
Product quality is improved in face, reduces special test station, improves production efficiency, reduces production human cost.
In order to achieve the above objectives, the utility model mainly provides the following technical solutions:
A kind of tester of multichannel QC3.0 fast charge agreement, including host computer, at least one test product and tested production
It is the equal input interface of product quantity, the voltage protocol circuit equal with input interface quantity, equal with voltage protocol circuit quantity
Single-chip microcontroller and the isolation communicating circuit equal with single-chip microcontroller quantity；
Test product, input interface, voltage protocol circuit, single-chip microcontroller and isolation communicating circuit correspond electrical connection；
All isolation communicating circuits all with upper mechatronics.
Further, the output port of the test product is USB interface, and interface specification is USB female seat, and there are four draw
Foot: V+, D-, D+, V- are electrically connected by USB line with input interface one-to-one correspondence.
Further, the input interface is connector 2.54mm terminal interface.
Further, the test product is 4.
Further, the voltage protocol circuit include resistance R19, it is resistance R20, capacitor C5, capacitor C6, capacitor C11, double
The model LM358 of operational amplifier Q3, dual operational amplifier Q3；
One PWM pin AD3 of single-chip microcontroller is connected to a foot of resistance R19, another foot connection capacitor C5's of resistance R19
One foot, another foot of capacitor C5 are connected to GND, form D/A converting circuit by resistance R19, capacitor C5, resistance R19 and capacitor C5's
Junction is connected to 3 feet of dual operational amplifier Q3, and 4 feet of dual operational amplifier Q3 are connected to GND, dual operational amplifier Q3's
1,2 feet connection is output to DA0, which is voltage follower, is connected externally to the D- pin of the input port of test product；
One PWM pin AD4 of single-chip microcontroller is connected to a foot of resistance R20, and another foot of resistance R20 connects the one of capacitor C6
Foot, another foot of capacitor C6 are connected to GND, form D/A converting circuit, the company of resistance R20 and capacitor C6 by resistance R20, capacitor C6
The place of connecing is connected to 5 feet of dual operational amplifier Q3, and 8 feet of dual operational amplifier Q3 are connected to GND, double operations by capacitor C11
8 feet of amplifier Q3 are connected to VCC, and 6,7, the 8 feet connection of dual operational amplifier Q3 is output to DA1, which is voltage follow
Device is connected externally to the D+ pin of the input port of test product；
Voltage protocol circuit is 0V, 0.6V, 3.3V voltage protocol as needed by single-chip microcontroller, generates different PWM warps
D/A converting circuit is crossed, corresponding voltage protocol is generated, D+, D- of input port is output to using voltage follower.
Further, the isolation communicating circuit includes signal isolation modules A 1, resistance R21, diode D2, communication interface
J3, the model 1201 of signal isolation modules A 1, the model 1N4148 of diode D2；
TX0, RX0 pin of single-chip microcontroller are transformed into external communication interface J3 by signal isolation modules A 1, are formed in this way
The effect of communication isolation；
RX0 is connected to 2 feet of signal isolation modules A 1, and TX0 is connected to 3 feet of signal isolation modules A 1, signal isolation mould
1 foot of block A1 is connected to+5V, and 4 feet of signal isolation modules A 1 are connected to GND, 7 foot connecting resistance R21 of signal isolation modules A 1
A foot, an other foot of resistance R21 is connected to 3 feet of external communication interface J3, and 6 feet of signal isolation modules A 1 connect two poles
The negative electrode pin of pipe D2, the negative electrode pin of diode D2 are connected to 2 feet of external communication interface J3, signal isolation modules A 1
8 feet are connected to 4 feet of external communication interface J3, and 5 feet of signal isolation modules A 1 are connected to the 1 of external communication interface J3
Foot, 4 feet of external communication interface J3 are connected to+5V, and 1 foot of external communication interface J3 is connected to GND.
Compared with prior art, the beneficial effects of the utility model include at least:
The tester of the utility model multichannel QC3.0 fast charge agreement can be effectively tested more QC3.0 fast charge outputs
The output parameter of USB port, and the influence of other test items will not be caused because of the reason of total cathode.By logical with RS232
News, by the voltage and current parameter data transmission in each channel to host computer, facilitate host computer to make a decision, test.
The utility model supports multiple channels to use fast charge protocol test simultaneously, and artificial detection station is integrated into automatic survey
In test system, the test that the different voltages by communicating settable QC3.0 agreement with host computer require is effectively defeated for more USB
The performance detection of charger of the exit port with QC3.0 fast charge agreement reduces cost of labor and improves quality, production efficiency.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the circuit diagram of the tester of the utility model multichannel QC3.0 fast charge agreement；
Fig. 2 is the circuit diagram of the voltage protocol circuit of the utility model；
Fig. 3 is the circuit diagram of the isolation communicating circuit of the utility model.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, below in conjunction with attached drawing and
The technical solution of the utility model is described in detail in specific embodiment.It should be pointed out that described embodiment is only
It is only the utility model a part of the embodiment, instead of all the embodiments, based on the embodiments of the present invention, this field
Those of ordinary skill's every other embodiment obtained without making creative work, belongs to the utility model
The range of protection.
Embodiment
The term that the present embodiment is used is explained as follows:
1, LED: light emitting diode, LED power are rectifier power source or driving power；
2, AC:Alternating current alternating current；
3, DC:direct current direct current；
4, the abbreviation of USB:Universal Serial Bus (universal serial bus)；
5, V+:VBUS anode, positive pole；
6, D-:D is negative；
7, D+:D is being just；
8, V-: ground wire, power cathode；
9, QC::Quick Charge fast charge.
As shown in Figure 1, the utility model provides a kind of tester of multichannel QC3.0 fast charge agreement, including host computer, extremely
A few test product, the input interface equal with test product quantity, the voltage protocol circuit equal with input interface quantity,
The single-chip microcontroller equal with voltage protocol circuit quantity and the isolation communicating circuit equal with single-chip microcontroller quantity；
Test product, input interface, voltage protocol circuit, single-chip microcontroller and isolation communicating circuit correspond electrical connection；
All isolation communicating circuits all with upper mechatronics.
In the present embodiment, the test product is 4.
The utility model multichannel QC3.0 fast charge protocol tester can arrive 16-32 channel while test.
The output port of test product is USB interface, and interface specification is USB female seat, and there are four pins: V+, D-, D+, V-.
USB line includes four lines: V+, D-, D+, V-.For connect test product output port and tester it is defeated
Incoming interface.
Input interface is connector 2.54mm terminal interface, physical connection of this port for the output pin voltage of product.
As shown in Fig. 2, the voltage protocol circuit include resistance R19, resistance R20, capacitor C5, capacitor C6, capacitor C11,
The model LM358 of dual operational amplifier Q3, dual operational amplifier Q3；
One PWM pin AD3 of single-chip microcontroller is connected to a foot of resistance R19, another foot connection capacitor C5's of resistance R19
One foot, another foot of capacitor C5 are connected to GND, form D/A converting circuit by resistance R19, capacitor C5, resistance R19 and capacitor C5's
Junction is connected to 3 feet of dual operational amplifier Q3, and 4 feet of dual operational amplifier Q3 are connected to GND, dual operational amplifier Q3's
1,2 feet connection is output to DA0, which is voltage follower, is connected externally to the D- pin of the input port of test product；
One PWM pin AD4 of single-chip microcontroller is connected to a foot of resistance R20, and another foot of resistance R20 connects the one of capacitor C6
Foot, another foot of capacitor C6 are connected to GND, form D/A converting circuit, the company of resistance R20 and capacitor C6 by resistance R20, capacitor C6
The place of connecing is connected to 5 feet of dual operational amplifier Q3, and 8 feet of dual operational amplifier Q3 are connected to GND, double operations by capacitor C11
8 feet of amplifier Q3 are connected to VCC, and 6,7, the 8 feet connection of dual operational amplifier Q3 is output to DA1, which is voltage follow
Device is connected externally to the D+ pin of the input port of test product；
Voltage protocol circuit is 0V, 0.6V, 3.3V voltage protocol as needed by single-chip microcontroller, generates different PWM warps
D/A converting circuit is crossed, corresponding voltage protocol is generated, D+, D- of input port is output to using voltage follower.
Voltage protocol circuit by resistor capacitor circuit by single-chip microcontroller output pwm signal switch to agreement needs 0.6V or
3.3V voltage is connected on two pins of D+D- of product, activates product, carries out carrying out shake communication with product, and is reached product and be incremented by
Or the 0.2V that successively decreases.
The main control chip that single-chip microcontroller is 8, has been internally integrated pwm circuit, turns with non-essential resistance condenser network composition digital-to-analogue
Parallel operation can export corresponding 0V, 0.6V incremental or requirement of successively decreasing that perhaps 3.3V voltage can be arranged according to host computer,
Different voltage is exported to test for other instruments.
As shown in figure 3, the isolation communicating circuit include signal isolation modules A 1, resistance R21, diode D2, communication connect
Mouth J3, the model 1201 of signal isolation modules A 1, the model 1N4148 of diode D2；
TX0, RX0 pin of single-chip microcontroller are transformed into external communication interface J3 by signal isolation modules A 1, are formed in this way
The effect of communication isolation；
RX0 is connected to 2 feet of signal isolation modules A 1, and TX0 is connected to 3 feet of signal isolation modules A 1, signal isolation mould
1 foot of block A1 is connected to+5V, and 4 feet of signal isolation modules A 1 are connected to GND, 7 foot connecting resistance R21 of signal isolation modules A 1
A foot, an other foot of resistance R21 is connected to 3 feet of external communication interface J3, and 6 feet of signal isolation modules A 1 connect two poles
The negative electrode pin of pipe D2, the negative electrode pin of diode D2 are connected to 2 feet of external communication interface J3, signal isolation modules A 1
8 feet are connected to 4 feet of external communication interface J3, and 5 feet of signal isolation modules A 1 are connected to the 1 of external communication interface J3
Foot, 4 feet of external communication interface J3 are connected to+5V, and 1 foot of external communication interface J3 is connected to GND.
QC3.0 fast charge protocol tester is that can have multiple channels.There is identical circuit in each channel.It is between each other
Isolation.Power supply and communication are all independent.Effectively the power supply product of the USB port output mostly with QC3.0 agreement is assisted
Discuss the test of voltage.Multiple test products are tested simultaneously, improve production efficiency.
The utility model can be applied to Switching Power Supply test macro, adapter test macro, LED power test macro, AC-
To the test of product in the test macro of DC power supply product.
The tester of the utility model multichannel QC3.0 fast charge agreement can be effectively tested more QC3.0 fast charge outputs
The output parameter of USB port, and the influence of other test items will not be caused because of the reason of total cathode.By logical with RS232
News, by the voltage and current parameter data transmission in each channel to host computer, facilitate host computer to make a decision, test.
The utility model supports multiple channels to use fast charge protocol test simultaneously, and artificial detection station is integrated into automatic survey
In test system, the test that the different voltages by communicating settable QC3.0 agreement with host computer require is effectively defeated for more USB
The performance detection of charger of the exit port with QC3.0 fast charge agreement reduces cost of labor and improves quality, production efficiency.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. a kind of tester of multichannel QC3.0 fast charge agreement, which is characterized in that including host computer, at least one test product,
Input interface, with input interface quantity equal voltage protocol circuit and the voltage protocol circuit equal with test product quantity
The equal single-chip microcontroller of quantity and the isolation communicating circuit equal with single-chip microcontroller quantity；
Test product, input interface, voltage protocol circuit, single-chip microcontroller and isolation communicating circuit correspond electrical connection；
All isolation communicating circuits all with upper mechatronics.
2. the tester of multichannel QC3.0 fast charge agreement according to claim 1, which is characterized in that the test product
Output port be USB interface, interface specification is USB female seat, there are four pin: V+, D-, D+, V- pass through USB line and input
Interface corresponds electrical connection.
3. the tester of multichannel QC3.0 fast charge agreement according to claim 1, which is characterized in that the input interface
For connector 2.54mm terminal interface.
4. the tester of multichannel QC3.0 fast charge agreement according to claim 1, which is characterized in that the test product
It is 4.
5. the tester of multichannel QC3.0 fast charge agreement according to claim 1, which is characterized in that the voltage protocol
Circuit includes resistance R19, resistance R20, capacitor C5, capacitor C6, capacitor C11, dual operational amplifier Q3, dual operational amplifier Q3's
Model LM358；
One PWM pin AD3 of single-chip microcontroller is connected to a foot of resistance R19, and another foot of resistance R19 connects the one of capacitor C5
Foot, another foot of capacitor C5 are connected to GND, form D/A converting circuit, the company of resistance R19 and capacitor C5 by resistance R19, capacitor C5
The place of connecing is connected to 3 feet of dual operational amplifier Q3, and 4 feet of dual operational amplifier Q3 are connected to GND, dual operational amplifier Q3 1,
The connection of 2 feet is output to DA0, which is voltage follower, is connected externally to the D- pin of the input port of test product；
One PWM pin AD4 of single-chip microcontroller is connected to a foot of resistance R20, and another foot of resistance R20 connects a foot of capacitor C6,
Another foot of capacitor C6 is connected to GND, forms D/A converting circuit, the connection of resistance R20 and capacitor C6 by resistance R20, capacitor C6
Place is connected to 5 feet of dual operational amplifier Q3, and 8 feet of dual operational amplifier Q3 are connected to GND by capacitor C11, and double operations are put
8 feet of big device Q3 are connected to VCC, and 6,7, the 8 feet connection of dual operational amplifier Q3 is output to DA1, which is voltage follower,
It is connected externally to the D+ pin of the input port of test product；
Voltage protocol circuit is 0V, 0.6V, 3.3V voltage protocol as needed by single-chip microcontroller, generates different PWM by number
Analog conversion circuit generates corresponding voltage protocol, D+, D- of input port is output to using voltage follower.
6. the tester of multichannel QC3.0 fast charge agreement according to claim 1, which is characterized in that the isolation communication
Circuit includes signal isolation modules A 1, resistance R21, diode D2, communication interface J3, the model of signal isolation modules A 1
The model 1N4148 of 1201, diode D2；
TX0, RX0 pin of single-chip microcontroller are transformed into external communication interface J3 by signal isolation modules A 1, and result in formation of logical
Interrogate the effect of isolation；
RX0 is connected to 2 feet of signal isolation modules A 1, and TX0 is connected to 3 feet of signal isolation modules A 1, signal isolation modules A 1
1 foot be connected to+5V, 4 feet of signal isolation modules A 1 are connected to GND, the one of 7 foot connecting resistance R21 of signal isolation modules A 1
Foot, an other foot of resistance R21 are connected to 3 feet of external communication interface J3, and 6 feet of signal isolation modules A 1 connect diode D2
Negative electrode pin, the negative electrode pin of diode D2 is connected to 2 feet of external communication interface J3,8 feet of signal isolation modules A 1
4 feet of external communication interface J3 are connected to, 5 feet of signal isolation modules A 1 are connected to 1 foot of external communication interface J3, outside
4 feet of the communication interface J3 in portion are connected to+5V, and 1 foot of external communication interface J3 is connected to GND.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820626484.4U CN208848054U (en) | 2018-04-28 | 2018-04-28 | A kind of tester of multichannel QC3.0 fast charge agreement |
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| CN201820626484.4U CN208848054U (en) | 2018-04-28 | 2018-04-28 | A kind of tester of multichannel QC3.0 fast charge agreement |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337783A (en) * | 2020-04-03 | 2020-06-26 | 深圳英集芯科技有限公司 | Test circuit and test method thereof |
| CN112014674A (en) * | 2020-09-02 | 2020-12-01 | 西安易朴通讯技术有限公司 | Product board quick-charging opening testing method, product board, testing board and testing system |
-
2018
- 2018-04-28 CN CN201820626484.4U patent/CN208848054U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111337783A (en) * | 2020-04-03 | 2020-06-26 | 深圳英集芯科技有限公司 | Test circuit and test method thereof |
| CN112014674A (en) * | 2020-09-02 | 2020-12-01 | 西安易朴通讯技术有限公司 | Product board quick-charging opening testing method, product board, testing board and testing system |
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