Recently, the charging head network has received a variety of models of the same typeHPChargerIt has a flat appearance design, uses AC power input and DC power output, retains the classic plum blossom interface notebook power design, and is equipped with an integratedType-CWhether the charging extension cable can carryType-CHow about charging mobile phones, tablets and laptop devices with interfaces?Next, let's go into the test to see this modelChargerWhat is the actual strength.
Product Introduction
ThisHP140WThe power adapterThe flat and slender body design is still continued, and the integrated design is also availableType-Cwire rod;Adapter isHPClassic matte+bright surface two-part splicing design, the shell is made of fireproof PC material;Gravure printing on the shell of sanded area“HP”Brand LOGO.
The adapter frosted shell part is connected by the left and right shells, and adopts multi-point buckle and low-pressure seamless ultrasonic technology, so the dust cannot be hidden.
The connection between the output wire and the body has a concave groove design, and the injection molding process in the mold is still used, which is more stable and inseparable. However, the thickened injection shell at the connection is slightly prominent, and cannot stand upright on the table.
The output end is integrated and inseparableType-CThe interface wire, sub end shell and wire body have thickened injection processing, which is more resistant to bending.
Type-CThe terminal is designed with a special PIN pin inside.
There is an inscription sticker of product specification parameters on the back.
Model: TPN-DA29;
Input: 100-240V~2.5A 50/60Hz;
Output: 5V3A, 9V3A, 12V5A, 15V5A, 20V5A, 28V5A;
Manufacturer: Delta Electronics Industry Co., Ltd.
In addition, the power input interface of the adapter is still a national standard 3-hole quincunx interface, and the internal metal pins are made of all copper nickel plated material, which is more conductive, wear-resistant and scratch resistant.
Use the power input wire of the national standard plum male connector to plug in and connect, without compatibility problems.
ChargerThe body is placed on the palm of an adult male to compare the appearance of a flat mobile power supply.
Protocol testing
Inherit the unmarkedQuick chargeIn addition to the protocol, understanding the complete protocol can facilitate users to select devices according to specific protocols, so as to achieve betterQuick chargeExperience.
Using the POWER-Z KM003C tester, it is measured that the Type-C interface supports DCPPD3.1 and other charging protocols.
PDIn terms of O message, five groups of fixed voltage gears (5V3A, 9V3A, 12V5A, 15V5A, 20V5A and 28V5A) and 15-28V 140A AVS supplementary voltage gears (15-28V 140A) are measured.
Product evaluation
Next, let's take a look at the specific use experience of this HP 140W power adapter (DA29). The charging head network will show you a comprehensive understanding of this laptop adapter from the aspects of compatibility test, full charge test, standby power consumption test, etc.
Charging compatibility test
It can be clearly known during the compatibility testChargerFor the charging condition of each device, dozens of different models will be measured this time.Let's take a look at the specific USB interfaceQuick chargeHow about the support.
Type-C will be supportedPD3.1 140WQuick chargeConnect the HP 140W power adapter (DA29) to the power bank of, and use the POWER-Z KM003C tester to read that the input power of the power bank terminal is 28.03V 4.30A 120.64W, to verify its supportPDthree point oneQuick charge。
Connect the MacBook Pro laptop to the HP 140W power adapter (DA29), and use the POWER-Z KM003C tester to read that the input power of the laptop terminal is 20.07V 4.64A 93.18W.
Summarize the device charging data into a table. It can be seen that, in addition to supporting high powerPDFor fast charging equipment, other brands of mobile phones shake hands with 5V, 9V voltage and power between 13-18W;Handset, tablet, laptop and other devices support high-power fast charging equipment, and can shake hands with 15V and 20V voltage gears;For supportablePD 3.1For fast charging equipment, 28V voltage can be grasped.
The histogram shows that HP 140W power adapter (DA29) is more suitable for high-power PD fast charging equipment such as laptop computers and handheld computers, and the measured value can reach 120.64W;Although it can also charge mobile phones, the charging power is stable in the 10-27W range.
Full charge test
HP 140W power adapter supports maximum power PD 140W charging. In terms of test equipment, the charging head network selected HP and HP 66 laptops as test objects. HP 140W power adapter and HP and HP 66 laptops were placed in a 25 ℃ incubator and powered on. The test results are as follows.
After the power supply is connected, the voltage is 28V, and the power is stable at about 57W in the first 34 minutes;Then the power drops to about 38W and continues to charge for 35 minutes;Then the power decreases in a "curve" and continues until the end of charging. The whole charging process takes about 1 hour and 55 minutes.
The line chart is drawn. It can be seen that the HP 140W power adapter takes 26 minutes to charge 50% of HP's 66 laptops, 54 minutes to charge 80%, and 1 hour and 55 minutes to charge 100%.
No load power consumption test
ChargerIt is a question in many readers' minds whether power will be wasted and how much power will be lost when the socket is not used. The standby power consumption link is to answer this question.Plug the charger into the socket of the Becky power meter, turn off the screen and light, and read the data on the power meter. The test results are as follows.
According to the power meter test, the no-load power consumption of the charger under the voltage of 220V 50Hz is 0.08W, and the annual power consumption is about 0.7KWh. If the market price is 0.6 yuan/KWh, the annual power consumption of the charger is about 0.42 yuan.
Let's look at the no-load power consumption under 110V 60Hz voltage. The power consumption read by the power meter is 0.06W, which translates into about 0.525KW · h of electric energy lost in a year. If the market price is 0.6 yuan/KW · h, the annual electric charge of the charger is about 0.32 yuan.
Summary
After the above no-load power consumption test, the HP 140W power adapter is not used when it is plugged into the socket under 220V 50Hz voltage environment, and the electricity consumption is about 0.42 yuan a year;However, in the 110V 60Hz voltage environment, it is not used when it is plugged into the socket, and the electricity consumption is about 0.32 yuan a year.
Conversion efficiency test
In essence, the charger is a conversion device, and there will be losses in the process, which will be emitted in the form of heat;The power drawn by the charger from the socket is often larger than the power marked by the charger;The HP 140W power adapter is tested for conversion efficiency under 220V 50Hz and 110V 60Hz AC input respectively. The following figure shows the test results.
First, let's see how the conversion efficiency is under 220V 50Hz voltage. The overall conversion efficiency is between 82.33-93.77%;The highest conversion efficiency is 28V5A gear, and the conversion efficiency reaches 93.77%;The lowest conversion efficiency is the 5V3A gear, whose conversion efficiency is 82.33%.
Then take a look at the conversion efficiency under 110V 60Hz voltage. The overall conversion efficiency is between 82.46-92.24%;The highest conversion efficiency is 28V5A gear, and the conversion efficiency reaches 92.24%;The lowest conversion efficiency is 5V3A gear, and the conversion efficiency is 82.46%.
On the whole, the conversion efficiency of HP 140W power adapter under two types of voltage is excellent among similar chargers.
Ripple test
Since switching power supply is used in the charger, the secondary output of the transformer is not DC, which needs to be output through rectification and capacitor filtering, that is, the output of the charger will have ripple;The charging head network uses an oscilloscope to test the ripple value of the charger output, compare it with the industry standard, and test the output quality of the charger.The lower the ripple, the higher the output quality of the charger.
No-load ripple
First, take a look at the no-load ripple under the voltage of 220V 50Hz. The highest peak value of ripple is 15V0A, and the peak value of ripple is 108mVp-p;The lowest peak value of ripple is 28V0A, and the peak value of ripple is 86mVp-p.
Then let's see how the no-load ripple behaves under 110V 60Hz voltage. The highest peak and peak value of ripple is 12V0A gear, and the peak and peak value of ripple is 112mVp-p;The gear with the lowest ripple peak value is 20V0A, and the ripple peak value is 96mVp-p.
Load ripple
First, take a look at the load ripple under the voltage of 220V 50Hz. The highest peak value of ripple is 5V3A gear, and the peak value of ripple is 94mVp-p;The lowest ripple peak value is 28V5A gear, and the ripple peak value is 52mVp-p.
Then let's see how the load ripple behaves under 110V 60Hz voltage. The highest ripple peak and peak value is 5V3A gear, and the peak and peak value of ripple is 72mVp-p;The gear with the lowest ripple peak value is 9V3A, and the ripple peak value is 56mVp-p.
Summary
In YD/T 1591-2009 communication industry standard, the ripple requirement of the charger is not higher than 200mVp-p. Under the input voltage of 220V 50Hz and 110V 60Hz, the maximum ripple peak value of the output power of the HP 140W power adapter is 112mVp-p, which meets the industry standard that the ripple is not higher than 200mVp-p.
Temperature test
The charger is a kind of conversion equipment. There will be losses during the charging process, which will be emitted in the form of heat, so the charger will generate heat.HP 140W power adapter supports up to 28V 5A 140W output. Place the charger in a 25 ℃ incubator and collect the temperature of the charger surface after one hour of 28V5A load.
First, let's see how the temperature of the charger behaves under the 220V 50Hz voltage output.
One hour later, the surface temperature of the charger photographed by the thermal imager was 51.4 ℃.
Let's see how the temperature behaves at 110V 60Hz.
One hour later, the maximum temperature of the charger surface photographed by the thermal imager was 58.6 ℃.
Summarize the temperature data into a table. The maximum temperature is 51.4 ℃ at 220V 50Hz and 58.6 ℃ at 110V 60Hz.
Plotting the data into a column chart, it can be seen that the maximum temperature of HP 140W power adapter when outputting at 220V 50Hz and 110V 60Hz is 58.6 ℃, and the maximum temperature during load test meets the requirements of IEC International Electrotechnical Commission IEC62368 and the new national standard GB4943.1 2022 for testing electronic and electrical equipment, and the temperature is not higher than 77 ℃.
Summary of charging head network
The HP 140W power adapter (DA29) continues the classic design of the old notebook power output and input terminals in appearance, and uses all copper nickel plated plum blossom interface. The charging wire of the integrated Type-C port can be compatible with most smart devices on the market.
In terms of performance, Type-C interface supports PD3.1 140W fast charging, which is measured to provide good fast charging support for tablets, handheld computers and laptop devices;Under 110V 60Hz and 220V 50Hz mains power supply, it has standby power consumption of less than 0.08W and conversion efficiency between 82% and 94%, which is at the level of mainstream.
Under 220V 50Hz AC input heavy load, the low gear output ripple difference is relatively average, and the ripple values are lower than 95mVp-p. The measured results show that the output of this charger is stable;With PD 28V5A 140W power, the output temperature is about 58.6 ℃ for one hour at room temperature of 25 ℃, showing excellent performance.
Overall, the HP 140W power adapter (DA29) is similar to the TA29 model. Both of them adopt the integrated Type-C fast charging line design. The conversion efficiency, power output quality, temperature control and other aspects are mainstream among similar products. At the same time, the performance of the two adapters are different, and users can choose according to their own conditions.