This article gives you a talk about the difference between wireless charging chips, and cp2021 wireless charging chips corresponding knowledge points, I hope to help you, do not forget to collect this site. < / p > < h2 > the article directory list: < / h2 > < ul > < li style = 'margin - bottom: 3 px; list-style: none'>1, Wireless charging and wired charging which is good
1, wireless charging good. In wireless charging, the charger and the charged device do not need direct contact, easy to use, strong environmental adaptability, avoiding the physical interface, so there will be no interface wear, sparks, leakage and other problems, in addition, wireless charging can also achieve high voltage, high current, high power charging. The cable is charged. Wireless charging also requires wired chargingWith a wireless charging pad. 2, wired faster, although wireless charging is a very practical function, but only some users, wired charging faster, wireless charging more flexible, get rid of the bondage of the wire, pick up and put down, no need to align, you can quickly charge. Both sides have their advantages and disadvantages and can make up for each other.
3, Apple cable charge well. The advantage of the magnetic magnet is that it can be adsorbated near, and the adsorption can be charged. The charger is automatically aligned with the position of the charging coil, which solves the problem of manual alignment for traditional wireless charging. But it's still wired, and it's workThe rate is not as good as wired charging, so the key moment is still more realistic wired charging. If the MagSafe magnetic charger wants to turn into a regular one, it will depend on when the iPhone removes the charging port.
4, Apple mobile phone general we are better with direct charging, its charging effect is also a direct point, wireless charging is now a more novel way, but I still accept wired charging is better. I always feel that the money will charge the efficiency of the battery will be higher.
5, cable charging. In the case of the same charging time, the power of the commonly used wired battery charger after charging93%, and the wireless charger is 88% charged. Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is still room for further improvement in technology.
6, the pursuit of higher portability and comfort, you can choose wireless charging; In pursuit of faster charging speed and wider application range, you can choose wired charging. The advantage of wireless charging is that it provides higher portability, which is especially suitable for wearable devices, smart home and other fields. However, the charging speed of wireless charging is relatively slow, and the distance between the charger and the device will affect the charging effect.
Wireless charging, even remote sensing charging. Its principle is electromagnetic induction, which is usually used in small power situations and does not require electrode contact points. There are induction coils in the small column and electricity, there are induction coils in the electric toothbrush insertion part, and there are plastic insulation outside, there is no electrical contact, and the induction obtains electricity to charge the battery and drive the small motor.
Principle of wireless charging -- electromagnetic induction wireless charging Electromagnetic induction wireless charging is the most used wireless chargingThe solution, mentioned in high school physics textbooks, is a certain frequency of alternating current through the primary coil, and the use of electromagnetic induction to generate a certain current in the secondary coil, thereby transferring energy from the transmission end to the receiving end.
The basic principle of wireless charging is to convert the current into a magnetic field, which is transmitted through the air and then converted into a current to be transmitted to the intelligent terminal. When the system works, the input end converts the AC mains into direct current through the full bridge rectifier circuit, or uses the 24V direct current end to supply power to the system directly. After passing through the power management module, the output direct current is converted into high frequency alternating current through the 2M active crystal oscillator inverter to supply the primary windingGroup.
Now there are many electric toothbrushes using wireless charging technology, the principle of this technology is actually the law of electromagnetic induction, that is, a magnetic field is set around the current, by changing the magnetic field to generate an electric field, in order to achieve the effect of charging, this reason is similar to the principle of induction cooker.
1, a total of 2 generations of Apple Bluetooth headphones, respectively, on September 8, 2016, Apple launched the first wireless headset Apple AirPods; On March 21, 2019, Apple released AirPods 2. The built-in sensor of the headset can sense the movement of the user wearing the headset, and the content played on the connected device will be automatically transmitted to the headset, and after removing one headset, the device will use its own speaker to play again.
2, the difference between the two headset models is different chip, different Bluetooth, different charging box. The chip is different: the Airpods1 generation is equipped with the W1 chip, and the second Airpods2 generation is upgraded to the H1 chip, and the H1 chip is more efficient in transmission speedFast and more stable, reducing game latency.
3, Battery life: Both the new AirPods with wireless charging case and the AirPods with charging case have extended battery life, and the talk time is 50% longer than the first generation AirPods. The AirPods can listen for five hours on a single charge, and the new models offer up to three hours of talk time. Features and performance: AirPods2 supports longer talk time, can activate Siri by voice, and can be paired with a new wireless charging case.
4, AirPods1 and AirPThe ods2 has three obvious differences: the front and rear positions of the charging case indicator light are different, the first generation is behind the box, and the second generation is moved to the front of the box. The button position of the headset has changed, and the button position of the second generation headset has moved up. The chain behind the charging case of the second generation of headphones is changed to a matte feel, and the chain behind the charging case of the first generation of headphones is polished.
5, the chip is different: airpods generation uses AppleW1 chip. airpods 2 and 3 use AppleH1 chips. Continuous use time varies: The airpods generation can be used continuously for 5 hours. airpods 2 can be used continuously for up to five hours. airpods 3 lasts six hours. airpods: airpods are wireless earphones made by Apple. The wireless headset has a built-in optical sensor and accelerometer that can be accessed by double-tapping Siri.
6, airpods generation and second generation packaging difference from the appearance of observation, compared with the first generation, the second generation has a wireless charging version indicator. The position of the adaptation button in the second generation of headphones is moved upward, and the square chain behind the battery box is changed to a frosted process, the first generation is polished, and the power indicator of the second generation is adjusted toIn front.
2, difference four, charging efficiency: in the case of the same charging time,The commonly used wired battery charger has a charge of 93%, and the wireless charger has a charge of 88%. Obviously, there is still a gap in the charging efficiency of wireless chargers, and there is still room for further improvement in technology.
3. Different charging methods. First of all, the charging method of the two is not the same, the wired charging box must be connected with the cable and the charger, and then inserted into the charging interface at the bottom of the box to charge. The wireless charging box supports both wired charging and wireless charging, and can be charged on other wireless charging boards. Indicator positions are different.
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