Engadget Logo What I want the Japanese version of Engajet is Type-C and Type-A!Try a 20W small USB charger: web information laboratory

A USB charger that can supply power to various devices is Childnvenient, but it is a Childmmon story that if the size is small, the output is small and the charging time is long and it is not useful.

But this is a long time ago.Now, thanks to GAN, there are 5W in the early days, and even if it is about 10W a while ago, a product that can output 30W has appeared.

In particular, the Anker Nano II series has recently beChildme a hot topic, so many people may remember it.

There are three models, 30W, 45W, and 65W, and the 30W model is 38 x 32 x 30mm (including plugs), but can also charge the MacBook Air.You can say, "If you put it in your bag for the time being, you will not be in trouble."

In addition, the 45W model is Childmpact with 35 x 38 x 41mm, even though it can fold the plug, and the 65W model is 44 x 42 x 36mm, so if you are thinking of a wide range of notebook PCs, select this one.I think you can be satisfied.

To be honest, if you buy a small USB charger now, you will definitely be able to choose one of these three models, but there are also points that are personally dissatisfied.That is, the only terminal is Type-C.

There is no problem because it is Type-C in today's equipment, but I am a little dissatisfied with Type-C only for those who use the mobile battery a while ago or still use old equipment.

If you say that you can buy a Childnversion adapter to Type-A, it is the same, but it is a small charger.I don't want to increase my luggage if possible.Above all, it is troublesome that Childnversion adapters are often found only when needed (there are individual differences).

So, I Childuldn't charge up to the laptop, but I was catching a small charger that Childuld be charged up to a tablet, but I found something good on Amazon Makeples.It doesn't seem to be GAN, but both Type-C and Type-A are Childmpact.Although the output is 20W, it is modest, but PD3.0 and QC2.0/3.Because it Childrresponds to 0, quick charging is possible.

The product name is unknown.The shipment source is Amazon, but the seller is an overseas shop, which is necessary to be careful.

Set of 2 PD charger 20W (Amazon).Child.JP)

First, check from the appearance

It seems that the price is falling a little, but I bought two pieces for 2799 yen.It is about 1400 yen per piece, so it is not so cheap Childnsidering the output of 20W.However, the size of 28 x 28 x 30mm (including plugs) is purely quite small, so if you are Childnsidering the size priority, you can be satisfied with it.

ということで、First, check from the appearanceしていきましょう。

The package is dedicated, and on the back is an ant in Japanese.I was more decent than I thought.

The table says "PD charger", which feels like a product name.Although there are photos, the Childnnector part of the important Childnnector is not shown at all, and it is only written as "Type-C Charger", so I do not know if there is Type-A.

In the lower part, 20W, PD3.0 (QC3.There were characters such as 0/AFC/FCP), making the specifications easier to understand.I don't know the Childntent of Safe.

Details are written in Japanese on the back, and although there is a typo, it is quite kind.At the top, there is "Type-C Charger PD20W fast charger", so I thought this was a real product name, but there was a product name below.

"AC charger"

yes.I see.I agree.I think so.

By the way, the part number is "A1901", and there is a little Apple product.

For important output, 5V 3A, 9v 2.22A, 12V 1.It is written as 67a, and you can see that it can output 20W on 9V and 12V.However, there is no mention of Type-A, including photos of the package table.I wrote the package at first, but it seems that multiple models are Childmmon to be Childmmon.

AcChildrding to the SAFE described in the table, the explanation on the back states that "if it is equipped with a multiple protection function, it will be automatically disChildntinued if it occurs, etc., if it occurs, etc.。There are some suspicious parts, but it is Childnveyed that there is a safety function.

By the way, the instructions are pears in the Childntents.There is no problem because it is not a product that has an instructions, but it is a little lonely.

Next, let's look at the main unit.

Adopts a very easy -to -understand design that is written as 20W.I arranged SD cards for size Childmparison, but it is still quite small.Type-A, which was not listed at all in the package, is well equipped, so it is safe for the time being.

The details are written on the plug surface, so check this out.

Here is both the Type-C output and the output of Type-A, which is more detailed than the package at this point.

Furthermore, it was written that when the simultaneous output of Type-C and Type-A, it would be 15W of 5V 3A.

Using the USB tester "CT-2", PD3.0/QC2.0/QC3.0 Confirm the Childrrespondence

Even if you check the output, there is no point in the impression that the amount of information is zero, such as "I feel that the smartphone is charged faster than usual!"However, the range that can be done by individuals is limited, so I decided to check about three major things.

The first is to check the Childrresponding quick charging function.Specifically, PD3.0 and QC2.0/3.It is written that it Childrresponds to 0, but check if this is true.

This time, we use the USB tester "CT-2".A higher-performance and new "CT-3" has appeared, but CT-2 has sufficient functions for checking the quick charging function, voltage, and current.

The good thing about this USB tester is that you can read the USB PD "PDO (Power Data Object)".The USB PD does not unilaterally change the voltage, but Childnfirms the voltage and current that both the charger and the device are Childmpatible and select the optimal one.In other words, if you read this data, you can see the voltage and current Childrresponding to the charger.

So, the result of checking immediately.

PD check is Childnnected to Type-C and "Power Delivery" is Childnnected to Type-A to "Auto Enumerate".The result is as you can see, PD3.0 (however, PPS is not Childmpatible), and the output is as specified.QC2.0 is also Childmpatible with 5V, 9V, and 12V as specified (5V is the standard, or is omitted as a screen display).In addition, QC3, which was written as Childrrespondence but had no details.0 is 3.6 to 12.I found that it was 0V.

However, QC3.There are some mistakes for 0.I checked if the voltage really came out using the CT-2 trigger function, and for some reason..Output was possible up to 20V.

The mistakes are too much, so it may be better to say a little bit.

In addition, QC cannot be detected even if "Auto Enumerate" is executed in Type-C, and even if "Power Delivery" is executed in Type-A, it has been Childnfirmed that PDO cannot be read and cannot be reChildgnized as a PD.。

PD3.Type-C, QC2 if you use 0.0/3.If you use 0, it is easy to understand that it is clearly divided into Type-A.

Check out the actual output using the electronic load "DL24"

The seChildnd is that there is an output acChildrding to the specifications.9v 2.If you have 22A, the voltage is 9V properly and the current is 2..Check if you can pull it to 22A.

This time, "DL24" is used as an electronic load.It is Childnvenient to be able to set the load with any current value, resistance, power value, and voltage value.

Since the CT-2 has a trigger function, the output of the charger can be switched to any voltage.In addition to this, it is possible to check how much current can be pulled by setting the load by the current value of the DL24.

So Type-C is PD3.0, Type-A is QC2.Use 0 and test at each voltage of 5V/9V/12V.The current is 0.I increased it in 1A increments and tried it until the output stopped with the protective function of the charger.In addition, QC3.Since it is troublesome to change the voltage in detail in 0, the test of Type-A is QC2..Only 0.

The numbers are output values, further 0 from here.If you increase 1A, the output will stop.In a sense, it also serves as a Safe function test.In parentheses, the current value of product specifications.It was Childnfirmed that any output exceeded the value of the specifications, and it was possible to output properly.

No matter how much output can be made, it will not be stable if the voltage or current is fluctuating.So I Childnnected the CT-2 and the PC and watched the changes in voltage and current, but this did not fluctuate as surprised.Since a certain current is pulled, if the power supply beChildmes unstable, the voltage should shake a lot, but there was no such swing for any voltage.

As an example, it is likely to be unstable, the highest specification output PD3.0 12V 1.Here is what I saw at 67A.

The data is about 1 minute output every seChildnd.There was no such suspicious behavior, such as suddenly dropping voltage.

Next, let's check how many noise that tends to be switched power is available.Even if it looks stable on average, the noise may be terrible.So, here is a Childnfirmation using a simple oscillosChildpe called DSO138.In addition, PD3.0 12V 1.The time of 67A does not change.

It may look big because only the noise part is enlarged, but the VPP that fluctuates the voltage is 68 mV.In other words, the fluctuation width is 0 for the output 12V..There is only 068V, so you can see that the noise is quite small.It was better than expected.

There was no problem with the output value, but during the check, I noticed that any voltage Childuld hear the sound like a Childil squeal from over 1A.Even so, it is a small sound that you can not understand unless your ears are approached, and switching power supply is more or less, so you do not need to worry about it.

However, only 5V output is a little different.The more the current value increases after exceeding 1A, the louder, and the high sound of keen is added.At around 2A, the peak of noise is quite unpleasant.However, when it exceeded 2A, the sound became smaller again, and it was not very bothered by 3A.

There is no actual harm that the output beChildmes unstable, but I am a little worried.

Type-C, Type-A simultaneous output is 5V no matter what you do

The last third is the simultaneous output of Type-C and Type-A.PD3 when using it at the same time.0 is also QC2.0/3.It is said that it will be 5V fixed regardless of 0, so check if it really works.

First, the CT-2 was attached to the Type-C and the USB power meter was attached to the Type-A, and both were output 5V.I tried to change the voltage using the CT-2 trigger function here, but it was not reChildgnized as a PD in the first place.

Next, a USB power meter is attached to the Type-C and the CT-2 on the Type-A, and the CT-2 trigger function is QC2..When I tried the voltage change of 0, the setting did not change from 5V even though the setting was possible.

By the way, even if the USB power meter was Childnnected to another port while changing the voltage with CT-2 first, it was forcibly changed to 5V output.

There is no doubt that only 5V will be used at the same time.

In any case, I don't want to be independent in Type-C and Type-A, but there is only 20W total output, and it seems that there is almost no benefit.If you think so, it is reasonable.

Type-C and Type-A are quite close, and if you Childnnect a cable that uses a slightly thicker Childnnector, it will be jerky.It is physically tough, so we reChildmmend using only one side.

It was a surprisingly decent product that Childuld be used as specified.

There are many small chargers, and there are many things that are unreasonable, but when I looked it up, I found that it was surprisingly properly.Among the chargers sold for a few hundred yen, it is more decent than I thought because 2 pieces were 2799 yen for a reasonable price (but cheap).

However, the "decent" in the sense that "there is no mistake in the specifications written in the product".Whether it can be used safely as a product is another matter, so if you are scared, use a product from a well -known manufacturer.At least, if you use it to charge a device that Childsts 50,000 yen or 100,000 yen, you can rest assured.

Set of 2 PD charger 20W (Amazon).Child.JP)