In the past two years, electronic products such as mobile phones have developed rapidly, and charging protocols have shown a diversified trend. Before the USB PD has been completed, multi-protocol, multi-interface charging accessories are still just needed.
As early as 2016, when the peers were still pushing the traditional 5V multi-port charger, the rice under the Xiaomi ecological chain launched a subversion concept of the "green rice charging station" multi-port fast charge charger QMCDZ06, 5 USB interface supports QC2.0 fast charge output, and two USB ports use the matching combo line to output 20V power to the notebook. This special function was a good eye.
After two years, Xiaomi again introduced a 6-port charger CDQ06ZM, configured with 4 5V/2.4A smart output ports and a multiprotocol fast charge output port, and added the hottest USB-C interface. Compatible with USB PD protocol.
From 5 ports to 6 ports, from a single QC2.0 fast charge to QC3.0, USB PD and other fast charging protocols, the charger's performance and practicality are all enhanced.
Through the dismantling found that the internal use of these two products are also very different. Next, through the dismantling to learn more about the difference between the two products.
Cindy Multi USB Power Adapter
Model: QMCDZ06 CUI rice charging station provides 5 USB ports all support QC 2.0 fast charging, single port mode supports 5V/2A, 9V/1.8A, 12V/1.5A three output modes; dual port mode, any adjacent The two USB ports can be used to power the notebook through the 'Blue Rice Dual U Adapter Line' output 20V/3A.
Millet USB Charger 60W Fast Charge (6 ports)
Product model: CDQ06ZM Input: 100-240V~50/60Hz 1.6A, Output: Four ports (grey USB-A): 5V4.8A (single port 2.4A MAX), single port (orange USB-A): 5V3.0A / 9V2 .0A / 12V1.5A, Single Port (Grey USB-C): 5V3.0A / 9V2.0A / 12V1.5A, Manufacturer: Jiangsu ZiMi Electronic Technology Co., Ltd., Manufacturer: Dongguan Yingju Power Co., Ltd.
First, millet USB charger 60W fast charge version (6 ports) dismantling
Millet USB charger uses a simple style carton packaging, printed on the front of the product model diagram.
The back of the box product parameters are as follows, the product name: Millet USB charger 60W fast charge version (6 ports), product model: CDQ06ZM, interface type: USB-A x 5, USB-C x 1, working temperature: 0 °C ~ 40 °C, product size: 110 x 80 x 20mm, input parameters: 100-240V~50/60Hz 1.6A, output parameters: 4 x USB-A: 5V4.8A (single port 2.4A MAX), 1 x USB-A: 5V3.0A 9V2.0A 12V1.5A, 1 x USB-C: 5V3.0A 9V2.0A 12V1.5A, Commissioner: Xiaomi Communication Technology Co., Ltd., Manufacturer: Jiangsu ZiMi Electronic Technology Co., Ltd. (Xiao Mi Ecological Chain Enterprise ).
List of unpacked items, charger body x1, manual x1, 8 words power supply cable x1.
The charger outlet uses a piece of dust-proof adhesive tape and is torn off when used.
The charger is smaller than the palm of the hand, flat design. The output ports are all on the positive side, from left to right are USB-C PD output ports, red USB-A QC fast-charge output ports, and four 5V2.4A outputs mouth.
The surface of the shell is very smooth, just above the Xiaomi company LOGO 'MI'.
A white LED indicator under the 'mi' LOGO is always on when powered on.
Looking at the details of the output seat tongue, there is no magnetism reaction and the mother seat of the millet logo is not used.
The bottom of the charger is made with 4 bumps, which can avoid mirror wear when placed on the charger, and a little bit of air to make it not sultry.
The nameplate parameters on the back of the charger are as follows: Name: Millet USB Charger 60W Fast Charge (6 ports), Model: CDQ06ZM, Input: 100-240V~50/60Hz 1.6A, Output: Four ports (Gray USB-A): 5V4 .8A (single port 2.4A MAX), single port (orange USB-A): 5V3.0A / 9V2.0A / 12V1.5A, single port (gray USB-C): 5V3.0A / 9V2.0A / 12V1.5A, manufactured Vendor: Jiangsu Zimi Electronic Technology Co., Ltd., Manufacturer: Dongguan Yingju Power Co., Ltd.
Supporting 8 word line using water droplets design.
Use POWER-Z FL001 to perform protocol recognition and polling for common 5V ports, and found that the 5V output supports apple 2.4A protocol.
Use POWER-Z FL001 to perform protocol identification polling for QC fast charge port. According to the analysis of charge head network, fast charge port supports apple apple 2.4A, Qualcomm QC2.0 9V 12V, Qualcomm QC3.0, Huawei FCP, and Samsung AFC.
Use POWER-Z FL001 to perform protocol identification polling on the USB-C port. You can see from the screen that the USB-C port supports Qualcomm QC2.0 9V 12V, Qualcomm QC3.0, and Huawei FCP. Note that the apple 2.4A is not supported here. In fact, it is supported after reinsertion.
After re-plugging, it can be seen to support the apple 2.4A protocol. Under doubt, Xiaobian uses the USB-C port of this millet multi-port charger to charge the ipad. The recorded power is 5.12V 2.33A 11.98W. It is apple2.4A protocol, but sometimes it needs to be plugged in correctly to deceive.
Use POWER-Z KT001 to query the USB-C port for PD packets. From the screen, you can see that there are 3 PDOs for USB-C, namely 5V3A, 9V2A, and 12V1.5A.
The shell adopts ultrasonic welding, the welding firmness is very high, the boring bar can be opened slowly from the edge.
PCB pin piece top view.
Top view of PCB patch surface.
Dismantle the appearance of heat-dissipation aluminum plate.
High-voltage input section, fuse, X-capacitor, filter inductor, and green NTC suppress power-on shock.
Three ACON 400V39μF filter capacitors, this transformer is step-down to the use of four 5V2.4A output ports, with two 6.3V1000μF solid-state filters next to the USB port, two Y capacitors to avoid floating screen.
This transformer is used for QC fast charge port and USB-C port output, and next to it is a green NTC input current limiting device. It can reduce the inrush current and extend the service life of the charger. It uses two 16V 330μF solid state filters and also uses two Ys. Capacitive floating screen.
USB-C and orange fast charge port, silk screen WT6615F, Type-C output port identification.
Dialog iW1760B, two primary switches for fast output, P1160VD, new product, voltage resistance 600V, current 11A, right side is iW1760 primary feedback PWM controller.
AON6226 synchronous rectifier, the left side SOT23 element is a synchronous rectifier controller. Because fast charging two ways using step-down output, using 100V pressure tube, conduction resistance 8 milliohm.
Here we see two South core SC8001A synchronous rectification buck controller, two AON7534 external plug, form a synchronous buck. And we have seen the same buck, are a combination of a controller external MOS, but is from the domestic Unprecedented breakthrough. In the past we basically dismantled foreign brands. This time we finally saw the Chinese core.
VBus switch for Type-C output port, VS3508AE.
Star Recognition IC, Taiwan Tianqi Fitipower FP6601Q.
This product uses a total of four Cheng TCS2101 current limiting protection chip, a chip can achieve two functions, to provide a new look for mobile phone charger over-current protection and intelligent identification technology.
Chengyu TCS2101, built-in current limit protection identification IC, provides USB output over-current protection and automatic identification.
Here is the 5V output synchronous rectifier, AON6268. Withstanding voltage of 60V, the resistance is very low for large current output.
The 5V output primary circuit, TK7P65W and iW1760B.
Two rectifier bridges, with capacitors to rectify the input AC to DC.
