This post was last edited by qwqwqw2088 on 2018-4-2 09:00 From 2015 to 2017, OPPO's VOOC fast charging technology has been leading the promotion of charging for 5 minutes and talking for 2 hours. OPPO's VOOC charger is a charger device that costs hundreds of yuan to buy separately, mainly for fast charging OPPO mobile phones. VOOC flash charging is a fast charging technology independently developed by OPPO, and 18 patents have been applied for. It has increased the fastest charging speed by more than 4 times, and has an impeccable intelligent full-end five-level protection. It is the fastest and safest mobile phone charging technology in the world. VOOC flash charging was first used on OPPO Find 7. As an OPPO Find 7 with a 3000 mAh battery, when using VOOC flash charging, it can make calls for 2 hours in 5 minutes of charging, and the mobile phone can be directly charged to 75% in 30 minutes - this amount of power is enough for most people to use for a whole day. (This data is based on laboratory testing under specific conditions. The actual charging effect may vary due to factors such as battery capacity and temperature, and the actual talk time may vary depending on the phone's usage status and environment.) VOOC Flash Charge requires a customized adapter and battery to be used together. OPPO customized a special adapter, battery, data cable, circuit, and interface, and added an MCU smart chip to the adapter for the first time; this makes the adapter used by VOOC Flash Charge the first upgradeable smart charger. On this basis, OPPO has deeply developed an intelligent full-end five-level protection technology that is safe and impeccable. Technical Principles VOOC Flash Charge adds an MCU smart chip to the adapter, thus realizing the revolutionary open voltage loop and segmented constant current technology.
If a mobile phone is compared to a car, the accelerator for ordinary charging is only 1.2L. Even if you step on the accelerator, you can only start slowly and move forward slowly. The open voltage loop of VOOC flash charging increases the displacement to more than 3L. Just step on the accelerator lightly and you can move forward at a high speed. Thanks to the precise regulation of current by MCU, VOOC realizes segmented constant current and gearing technology. When starting, VOOC will be in high gear. In the middle, it will automatically jump to medium gear, allowing you to move forward quickly. At the end, it will switch to low gear, allowing you to arrive at the station smoothly. QC, PE, FCP, SCP, AFC, VOOC, PD, these familiar English words are the fast charging technologies supported by major mobile phone manufacturers. Most mobile phones on the market are now equipped with fast charging as standard. The popularity can be said that there is no flagship without fast charging. However, looking back at the past few years when fast charging was still in its infancy, the entire industry was in a state of chaos. The two solutions of high voltage and low current and low voltage and high current competed with each other, and the advantages and disadvantages were compared. In 2014, OPPO took the lead in launching the concept of ultra-high power fast charging and named it "Flash Charge VOOC". I believe many people have heard the slogan of charging for five minutes and talking for two hours. VOOC is a low-voltage, high-current solution. Even if the charging power reaches more than 20W, the phone still maintains a low heat generation. The appearance of the fourth-generation OPPO VOOC has completely changed. It is no longer the square strip structure of the second and third generations, but adopts a more common square flat design.
The specially customized green tongue USB port is definitely indispensable. USB port macro details, the common USB port has only 4 shrapnel, the previous generations of OPPO VOOC used 4 shrapnel + 5 contacts similar to the USB3.0 female socket, and in the picture we can see that OPPO uses a specially customized 4 shrapnel + 1 contact green female socket, and the positive and negative shrapnel on the left and right outer edges are widened to cope with the transmission task of up to 4A current and reduce the voltage drop and heat generated by contact resistance. The dimensions are: length, width and height: 50mm * 50mm * 30mm, and the weight is: 68g.
The parameters of the brand name at the bottom are as follows: input: 100-240V~50/60Hz 0.6A, output: 5V4A, model: VC54GBCH, manufacturer: Lite-On Technology Co., Ltd., SN: G517443MC1266944.
The OPPO VOOC charger uses PC material to make the shell, which is closed by ultrasonic welding. The weld surface is generally firm enough to open the cover without damage.
This post was last edited by qwqwqw2088 on 2018-4-2 09:02 The orange ones on the high voltage side are safety capacitors, Aihua AISHI 400V22μF + 400V15μF filter electrolytic capacitors, the green ones are thermistors used to suppress power surges, and the dual Y capacitors prevent interference with screen failure.
American PI INN2005K AC/DC converter, the chip integrates the primary MOS switch tube, the primary PWM controller, and the secondary synchronous rectification controller. The integration is very high, the power is 20 watts and supports 5V/4A output.
Will VOOC flash charging with a current output of up to 4A damage other mobile phones? In fact, there is no need to worry. You must use the original VOOC data cable + a mobile phone that supports VOOC flash charging to enable the VOOC flash charging mode to output high current. Use ChargerLAB POWER-Z FL001 to simulate ordinary devices plugged in with load. Under normal circumstances, the maximum output of the charger is 5.13V / 2.2A / 11.3W. If the load is increased, the current will drop sharply and enter the pre-protection mode, which means that ordinary devices do not need to worry about accidentally outputting high current. The launch of R11S also brought the fourth-generation VOOC flash charging, which has been redesigned both in appearance and interior. The solution uses the American PI INN2005K with OPPO's self-developed VOOC chip. The output of 5V4A up to 20W will not cause the phone to overheat, which is really valuable. Non-VOOC devices can also provide the regular performance requirements of 5.13V 2.2A, taking care of both sides. Three years ago, the market was full of 9V and 12V high-voltage fast charging. When the VOOC low-voltage solution was launched, the industry and consumers were skeptical. However, the low-voltage and high-current solution has always had great advantages. If you want to charge at high power without increasing the user's body temperature, this is the only way. Time has also proved that this is the right route. Today, Qualcomm QC4, Huawei SCP and other fast charging have begun to make modifications to support low voltage and high current. In terms of charging, OPPO VOOC is ahead of the entire industry.
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