preface
With the increase of high-power devices in life, people's demand for multi-port high-power continues to rise, and at the same time, the volume requirements for products are getting smaller and smaller, and the temperature control requirements are getting higher and higher.
MSI is committed to providing customers with high-efficiency, low-power, and small-size fast charging solutions. Today, Chargerhead will introduce a one-MSI 65W 1C1A charger, which is compact in size, supports multi-protocol fast charging, and has the highest measured conversion efficiency of 92.83%. Let's take a look at the measured performance of this charger.
Product Introduction
This charger has a total of two ports, one Type-C and one Type-A. The body is made of pure white and simple color, and the shell is made of high flame retardant PC material. The charger has a fine-grained matte surface with a delicate and smooth feel.
The nameplate information of the charger is as follows:
型号：SN-TC650BQ1D1E65
输入：100-240V~ 50/60Hz，1.5A
Type-C 输出:5V/3A、9V/3A、12V/3A、15V/3A、20V/3.25A
USB-A 输出:5V/3A、9V/2A、12V/1.5A
Simultaneous output:
Type-C+USB-A：45W+18W Max
Maximum total output: 65W
The measured length, width and height of the PCBA in the shell are 46.11mm*40.8mm*22.47mm, and the volume is about 42.27cm³, which is very compact.
Compared with Apple's 67W charger, this charger has a significant size advantage.
It is very small and can be easily grasped with one hand.
Solution introduction
An MSI 65W 1C1A charger only needs a CV656 protocol, a Sop-8 low-power buck and an inductor to achieve 45W+18W dual fast charging output.
CV656 supports OPTO and FB dual feedback, which can control the ACDC output and Buck output at the same time, and one chip can realize the intelligent identification and power allocation of C port and A port. The chip is also used in the "One MSI 65W 2C1A Charger: Ultra-Small Size, 93% High Efficiency".
Protocol testing
使用POWER-Z KM003C 读取 Type-C 端口快充协议，实测支持 FCP、SCP、AFC、QC3.0、QC4+、Apple2.4A、DCP、PD3.0 和 PPS 等充电协议。
PDO报文方面,端口支持 5V/3A、9V/3A、12V/3A、15V/3A 和 20V/3.25A 五组固定电压,以及5-11V/5A一组PPS电压档位。
使用POWER-Z KM003C 读取USB-A端口快充协议，实测支持 FCP、SCP、AFC、QC3.0、DCP和Apple 2.4A充电协议。
Charger performance test
Next, the charging head network belt will fully understand the performance of this charger from the aspects of protocol compatibility test, multi-port simultaneous output test, charging whole process test, no-load power consumption test, conversion efficiency test, ripple test, temperature test, etc.
Device compatibility testing
The compatibility test link can clearly know the charging situation of the charger for each device, and the charging head network will use more than a dozen devices with the charger for testing, presenting the real test data for readers.
Type-C
将 Huawei MateBook X Pro 笔记本连接充电器的任一Type-C口，使用 POWER-Z KM003C 测试仪读取功率为 19.8V 3.14A 62.2W。
Use this charger to charge mainstream mobile phones, tablets and laptops, with a charging power of up to 63.69W, which can meet daily charging needs.
Plotting the charging data as a histogram, you can see that for mainstream mobile phones and tablets, the charging power is maintained between 14.71W-63.69W, which is compatible, and at the same time, the charger can meet the daily battery life needs of notebooks, with a maximum charging power of 63.69W.
USB-A
将Redmi K60 Pro 手机连接充电器的USB-A端口，使用 POWER-Z KM003C 测试仪读取功率为 7.95V 2.78A 22.11W。
Through actual measurements, it can be seen that the USB-A port of this charger can provide 9V voltage output to most mobile phones, with a power of 11-21W; A small number of mobile phones can only shake hands 5V 2A.
Plotting the charging data as a histogram, you can see that for mainstream mobile phone devices, the charging power based on the USB-A port is maintained within 18W, and Huawei mobile phones can trigger the private protocol with a power of 21.35W, which can meet the daily mobile phone charging needs.
Multi-port simultaneous output test
Connect the USB-A and Type-C ports of the charger to your laptop and mobile phone, and the charging power can reach 43.43W, 20W, respectively, and support 45W+18W power distribution.
Charging is tested throughout the process
The charger has a maximum output power of 65W, and the MacBook Air 15 was selected as the test object for the charging head network, and the charger and MacBook Air 15 were placed in a 25°C incubator and connected to the power supply, and the test results are as follows.
Drawing a line graph, you can see that the 65W charger took 37 minutes to charge the MacBook Air 15 to 50%, 1 hour and 08 minutes to 80%, and 2 hours and 22 minutes to charge to 100%.
Previously, the charging head network measured that Apple's original charger (70W) also takes 2 hours and 19 minutes to fully charge, which is not much different from the charger.
No-load power consumption test
Whether the charger will waste electricity when it is not in use when it is plugged into the socket, and how much power will be lost, is a question in the minds of many readers, and the standby power consumption link is to answer this question. Plug the charger into the socket of the Yokogawa WT310E power meter and read the data on the power meter, and the test results are as follows.
After the power meter test, the no-load power consumption of the charger at 220V 50Hz voltage is 0.15W, which translates to about 1.31KW·h of power loss in a year, and if the market price is 0.6 yuan / KW··h, the electricity cost of the charger is about 0.78 yuan a year.
Let's take a look at the no-load power consumption at 110V 60Hz voltage, the power consumption read by the power meter is 0.1W, which translates to about 0.87KW·h of electric energy lost in a year, and if the market price is 0.6 yuan/KW·h, the electricity cost of the charger is about 0.52 yuan a year.
brief summary
After the above no-load power consumption test, this charger is not used in the socket in the 220V 50Hz voltage environment, and the electricity cost is about 0.78 yuan in a year, and the electricity cost is about 0.52 yuan in a year when plugged into the socket in the 110V 60Hz voltage environment.
Conversion efficiency test
This charger was tested for conversion efficiency at 220V 50Hz and 110V 60Hz AC input, and the test results are shown in the figure below.
Let's take a look at the conversion efficiency under 220V 50Hz voltage, the overall conversion efficiency is between 86.86-92.83%; Among them, the highest conversion efficiency is the 20V3.25A gear, and the conversion efficiency reaches 92.83%; The lowest conversion efficiency is the 5V3A level, with a conversion efficiency of 86.86%.
Let's take a look at the conversion efficiency under 110V 60Hz voltage, the overall conversion efficiency is between 87.72-91.92%; Among them, the highest conversion efficiency is the 20V3.25A gear, and the conversion efficiency reaches 91.92%; The lowest conversion efficiency is the 5V3A gear, with a conversion efficiency of 87.72%.
On the whole, the conversion efficiency of this 65W charger under two types of voltages is at the mainstream level among similar chargers, with the highest conversion efficiency reaching 92.83%, which is very good.
Ripple test
Due to the switching power supply used in the charger, the secondary output of the transformer is not direct current, and the output needs to be rectified and capacitively filtered, that is, there will be ripple in the output of the charger; The charging head network uses an oscilloscope to test the ripple value of the charger's output, and compares it with the industry standard to detect the output quality of the charger. The lower the ripple, the higher the output quality of the charger.
No-load ripple
First of all, look at the no-load ripple at 220V 50Hz voltage, the highest ripple peak is 20V0A gear, and the ripple peak is 49mVp-p; The lowest ripple peak is 15V0A, and the ripple peak is 35mVp-p.
Let's take a look at the no-load ripple performance at 110V 60Hz, the highest ripple peak is 12V0A with a ripple peak of 35.1mVp-p, and the lowest ripple peak is 9V0A with a ripple peak of 32mVp-p.
On-board ripple
First of all, look at the on-load ripple at 220V 50Hz, the highest ripple peak is 20V3.25A, and the ripple peak-to-peak is 46.5mVp-p, and the lowest ripple peak-to-peak is 20V3.25A, and the ripple peak-to-peak is 33.47mVp-p.
Let's take a look at the on-load ripple performance at 110V 60Hz, the highest ripple peak is 20V3.25A with a ripple peak of 68mVp-p, and the lowest ripple peak is 5V3A with a ripple peak of 41.2mVp-p.
brief summary
YD/T 1591-2009 communication industry standard charger ripple requirements are not higher than 200mVp-p, this 65W charger at 220V 50Hz, 110V 60Hz input voltage, all output power ripple peak value is not higher than 68mVp-p, the overall performance is very good.
Temperature test
The charger is a conversion device, and there will be loss during the charging process, which will be dissipated in the form of heat, so the charger will heat up. The 65W charger supports up to 65W output, and the temperature of the charger surface is collected after placing the charger in a 25°C incubator and charging at 20V3.25A for one hour.
First, let's see how the charger temperature behaves at 220V 50Hz voltage output.
After an hour, the maximum temperature on the surface of the charger, photographed with a thermal imager, was 71.6 ° C
The maximum temperature on the other side of the charger is 74.4°C.
Let's take a look at the temperature at 110V at 60Hz.
After an hour, the maximum temperature on the surface of the charger photographed with a thermal imager was 69.1°C.
The maximum temperature on the other side of the charger is 76.6°C.
Summarizing the temperature data into a table, it can be seen that when the charger is tested at two types of voltages, the temperature is 69.1-76.6°C when charging at 220V 50Hz and 110V 60Hz.
Plotting the data into a histogram, it can be seen that the maximum temperature of the charger at the output of 220V 50Hz and 110V 60Hz is 76.6°C, and the maximum temperature of the charger under load meets the requirements of the IEC International Electrotechnical Commission IEC62368 and the new national standard GB4943.1 2022 for electronic and electrical equipment testing, the temperature is not higher than 77°C.
Summary of the charging head network
This MSI 65W charger is made of PC flame retardant shell material, the overall body is made of pure white simple color, and the surface is fine-grained matte, which feels delicate and smooth. At the same time, it is equipped with Type-C + USB-A dual ports, which can quickly charge multiple devices at the same time.
In the charging test, when the charger's USB-A and Type-C are output at the same time, the measured power of charging the mobile phone and notebook at the same time can reach 43.43W+20W.
In the performance test, the output quality of this charger is reflected through power consumption, ripple, conversion efficiency and temperature tests, and it is tested at 220V50Hz and 110V60Hz respectively, and its standby power consumption can reach as low as 0.1W, and the ripple value in the no/load state under different voltage levels is basically below 46mVp-p based on 220V/110V mains power, but the performance is still excellent.
In addition, under the 110V~mains, with 20V3.25A 65W power continuous output for one hour, the maximum charger temperature is 76.6 °C, within the national standard, the charging head network gets the demo state, after the glue heat dissipation treatment package, the temperature will be further reduced.
Overall, this one-MSI 65W 1C1A charger has the characteristics of small size, high efficiency, low power consumption, etc., and can charge mainstream mobile phones, tablets, thin and light laptops and other devices on the market with multiple protocols, and can quickly charge two devices at the same time, with high stability, high conversion efficiency and safety, to meet the basic charging needs of desktop devices.