1, for the human body: wireless charging technology is safe and harmless to the human body. The resonance principle used by wireless charging is magnetic field resonance, which is transmitted only between coils resonating at the same frequency, and other devices cannot accept the band, in addition, the magnetic field used by wireless charging technology is itself harmless to the human body.
2, there is a little radiation, as long as the person is not between the transmitter and the receiver, the radiation level is very small, and the charging frequency is inconsistent with the main absorption frequency of the human body, the harm is completely negligible.
3, in fact, you can be sure to tell you that wireless charging is rightThe harm to the human body is very small, almost negligible. This is like the Wi-Fi, mobile phones, TVS and other electronic products we usually use, and we do not exist between the transmitter and the receiver the radiation level is small, and the main frequency absorbed by the human body is inconsistent with the charging frequency, so we can not worry about the harm of wireless charging. 4, from the theory, wireless charging technology is safe and harmless to the human body, the resonance principle of wireless charging is magnetic field resonance, only in the same frequency resonance between the coil transmission, and other devices can not accept the band, in addition, wireless chargingThe magnetic fields used by the technology are inherently harmless to humans.
5, convenient since needless to say, in addition, wireless charging is also safer, there is no exposed connector, leakage, running and other safety hazards are completely avoided. Some people worry about the problem of radiation, this technology was first used in water purifiers, so far has been eight years, the safety has been verified by 36 countries, certainly will not cause harm to the human body and the environment.
6, the severity of wireless charging radiation is still controversial, radiation is certainly there, but the electromagnetic radiation of wireless charging is relatively small, but this radiation hasAnd so on.
2, the development prospects of the shared charging treasure industry are very broad. According to a report by the Prospective Industry Research Institute, the number of users of China's shared charging treasure will reach 0.5 billion in 2019, and the number of users will grow to 0.8 billion in 2020. Growth will gradually slow to 56% in 2019. The development trend of the shared charging treasure industry shows an increasing trend.
3, G promote terminal battery life demand Shared charging treasure market continued growth With the further development of 5G technology, it puts forward higher requirements for the battery life of terminals.
4, Therefore,The shared charging treasure is still in a relatively preliminary stage in the market, and greater efforts are needed in user education, convenience of use and brand differentiation to gain more young people's recognition and trust.
5, although the shared charging treasure provides convenient charging services, there may be problems such as difficulty in use, slow charging speed, messy charging lines, and certain restrictions on use. In contrast, buying your own charging bank can better meet your personal needs and provide a more stable, convenient and fast charging experience. On the other hand, this phenomenon also reflects the consumer's difference between long-term investment and short-term consumptionSame attitude.
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Instant noodle market survey report Model survey report time The survey time is XX month XX day Survey report location The survey was launched in XXX With the continuous acceleration of people's pace of life Wireless charging market survey, people's dietary life has also been deeply played on the wireless charging market research the brand of The Times. Because instant noodles provide you with great convenience, it has become an indispensable part of food in many people's lives.
Market research report format Model 6 Article 1 Wireless charging market research : Market research report model E-Mart supermarket Basic situation E-Mart supermarket is South Korea's New World GroupThe South Korean retail giant is gearing up for rapid expansion in China. According to data provided by e-Mart officials, Shinsegae Group is the largest commercial distribution group in South Korea, owning department stores and large supermarkets.
Cosmetics market research report With wireless market research China's reform and opening up of the in-depth development, the national economy is growing rapidly, people's living standards continue to improve, cosmetics market has been rapid development. In 1987, the sales of China's cosmetics market was only more than 1 billion yuan, 19In 1991, it increased to 4 billion yuan, and in 1993 it soared to more than 9 billion yuan, with an average annual growth rate of 50% in recent years.
1, should be power indicator wireless charge market survey , E should be low power wireless charge market survey , L is low, H is sufficient, F is full. H=High, is sufficient battery wirelessMarket research. L=Low, which means low power, insufficient power. E=empty means there is no electricity or the electricity is very low. Precautions for charging electric vehicles with low power Wireless charging market survey : The first three times for the new battery to run out of electricity (after the undervoltage prompt to charge), the charging time should reach 12 hours.
2, H=High, means sufficient electricity. L=Low, which means low power, insufficient power. E=empty means there is no electricity or the electricity is very low.
3, should be a power indicator, E should be low power, L is low, H is sufficient, F is full. H=High, which means sufficient charge. L=Low, which means low power, insufficient power. E=empty means there is no electricity or the electricity is very low.
4, E=empty, is no electricity or very low meaning. F: Full, which means the battery is fully charged. For short trip users, it is recommended that when the daily electricity consumption is 10%, it can be charged once a week. When the daily electricity consumption is 20%, it can be charged once every three days. Daily electricity consumptionWhen the amount is 30%, it can be charged once every two days.
As shown in the figure above, when the PD XSP01 is used in the circuit, it can support PD QC fast charge, and after the chip is cancelled, it can support QC fast charge, which has no impact on the original wireless charging scheme circuit, which is unique and convenient for flexible use.
XSP01 can support iPhone PD fast charge, QC0, QC0 fast charge. Overview XSP01It is a power receiver protocol chip that conforms to PD, QC0, QC0, AFC, FCP protocols, and can be widely used in various products in various fields, such as wireless charging, small household appliances, aging devices, electronic cigarettes, etc.
When using a Type-C to DC adapter, the adapter usually contains a PD protocol chip inside, which shakes hands with the charger's PD chip to negotiate charging parameters.
PD protocol is one of the current fast charge protocols. It is a fast charging specification developed by the USB-IF organization. USB PD via USB cableAnd connectors increase power delivery and extend cable bus power capabilities in USB applications. The specification enables higher voltages and currents, delivers up to 100 watts of power, and freely changes the direction of power delivery.
internal protocol chip, so in order to let the charger output fast charging voltage, such as 5V/9V/12V/15V/20V, you need to add an XSP06 power chip on the product, with this protocol chip and the charger protocol chip communication, you can output the required voltage. QC charger (generally USB-A port) default is 5V output,The PD charger (Type-C port) has no voltage output by default.
Fast charge protocol chip to program to use. According to the query of relevant information, the fast charge protocol chip is also called the power supply protocol chip, the power supply protocol chip of the charger and the received protocol protocol on the product will communicate through DP/DM or CC foot, after the connection is successful, you can start the fast charge output high voltage.