IPhone 12: roll over! How to reduce the power consumption of two power consumers?

This year’s iPhone 12 series machines did not get good endurance performance because of the addition of 5nm chip. Under the same performance, the power consumption of 5nm chip is much lower than that of 7Nm chip. Why hasn’t Apple A14 greatly improved the life span of iPhone 12 series? Small house that should be analyzed from the overall configuration of the machine. < / P > < p > first of all, 5nm chips can reduce the power consumption of smart phones. However, in order to support 5g network, this year’s iPhone 12 series has “external” the high pass snapdragon x55 baseband on the apple A14. The baseband adopts the 7Nm technology, so the power consumption is relatively high. Many other partners find that when using 5g network, the machine is relatively hot Big, small house think the main problem is from the snapdragon x55 baseband. < p > < p > the snapdragon x55 baseband was released at the end of last year. It is the second generation 5g baseband of Qualcomm. Compared with the first generation of snapdragon X50 5g baseband, the advantage of snapdragon x55 baseband is that it supports both NSA and SA 5g network; this year’s snapdragon 865 chip also supports 5g network through the base. In order to reduce the heat of the machine, most of the Android flagship phones have adopted various cooling technologies, but Apple has not. < / P > < p > in addition to the old baseband, both iphone12 and iphone12 Pro use lpddr4 memory, which is not the lpddr5 memory used on mainstream Android flagship phones. At this year’s Xiaomi 10 series machine conference, Lei Jun, founder of Xiaomi, said that compared with the previous generation of memory chips, lpddr5 memory can extend the endurance of the machine by up to 10%, and greatly improve the performance. < / P > < p > on the one hand, the iPhone 12 series still uses the old snapdragon x55 baseband, on the other hand, it uses the old lpddr4 memory. These two components do not significantly reduce the power consumption of the machine, but will become a big power consumer. In fact, the power consumption problem caused by the snapdragon x55 baseband can be solved by turning off the 5g function. Apple is running the user to turn off the iPhone E12 series 5g function. However, there is no way to solve the power consumption of lpddr4 memory, because as long as the iphone12 series machine is powered on, this memory must work; in addition, the battery capacity of the iPhone 12 series machines is reduced compared with the previous generation products, so the battery life performance is not ideal and normal. As for the official promotion of the battery performance is better than that of the previous generation, I guess it is in the case of 4G network The so-called promotion doesn’t make much sense. < p > < p > Wang Shouyi said Shisanxiang is reasonable, because next year’s iPhone will probably use 5nm baseband and and lpddr5 memory, and may even use high refresh rate screens. The power consumption of early high refresh rate screens is very huge, but with Samsung’s self-adaptive refresh rate technology, the huge power consumption problem caused by high refresh rate has been solved, and Apple may also introduce it Similar technology. < / P > < p > all kinds of “historical signs” show that Apple’s first generation products adopting new technologies are not reliable, but when it comes to the second generation products, all aspects are very mature; if you are not so anxious to use 5g iPhone, you can wait for the new 5g chip brought by the next generation iPhone. Continue ReadingDeveloped a “plug and play” solar power generation scheme, and “5B” won a $12 million round a financing

Author: zmhuaxia