Can use 5V5A wireless charging receiver chip output 5v charger to 4V0.7AhBattery charging Wireless charge receiving chip output 5v, but the charging time is slightly longer. Note Wireless charging receiver chip output 5v : The main electrical parameters of the battery are voltage (5V) and capacity (0.7Ah) Wireless charging receiver chip output 5v, will be marked on the battery. To meet the requirements for charging the battery: the voltage of the charger is higher than the voltage of the battery; Is good rechargeable bottle; Need to use a certain charging current to charge wireless charging receiving coreThe output is 5v, too low will delay the charging time, too high will reduce the battery life.
The voltage of the three batteries is 4. 5V, directly control the charging voltage of the mobile phone charger voltage is generally 4. 2V, this charger can be used directly, but pay attention to the polarity, please refer to.
The owner can completely replace the battery in the original microphone with a mobile phone charger. The effect in practice is the same. However, it is best to use the newer mobile phone charger, because the output current of the current mobile phone charger is about 1A or larger, and the old mobile phone charger output electricityThe flow is relatively small. Therefore, when replacing, it will be more reliable to work with a new mobile phone charger with larger power in the near future.
1, wireless charger how to choose QI standard: wireless charging currently has two major international mainstream industry standards. One is the QI standard of the Wireless Charging Alliance (WPC), and the other is the AirFuelAlliance. These two standards have strict certification standards for the energy, technical parameters, compatibility, and safety of wireless charging products.
2, appearance and use of wireless charger type Experience steps: 1 From the appearance and use is divided into: desktop mobile phone wireless charger vertical mobile phone wireless charger Car mobile phone wireless charger embedded mobile phone wireless charger 2 types of wireless charger: There are also many types of wireless charging, such as car wireless charging, desktop wireless charging, embedded mobile phone wireless charging, etc., Bisi wireless charging is small and exquisite, very convenient to carry, and can also be considered as one of the entry-level objects.
3. Connect the phone's standard charger and data cable to the wireless charger, and then place the phone directly (vertically) or horizontally in the center of the wireless charger basePosition, wireless charging can be achieved, the indicator light will have a breathing effect, 5 seconds after the extinguishment, plug and play, convenient and quick.
4, wireless charger is composed of a charging head, a charging cable and a charging base. You need to purchase the charging base by yourself. To ensure charging quality and safety, you are advised to purchase the base from Huawei. Wireless charging is fast charge or slow charge depends on the phone charger, if the charger is high voltage fast charge, wireless charging for wireless fast charge; If it is an ordinary charger, wireless charging is wireless slow charging. The correct way to use a wireless charger: Connect the charger to a power source.
5,Connect the power supply: Connect the wireless charger to the AC power supply and make sure the charger is in working condition. Place the device: Place the device that needs to be charged (such as a mobile phone) on the charging area of the wireless charger. Make sure there are no obstacles between the device and the charger, such as metal objects or other electronic devices. Start charging: When the device is correctly placed in the charging area, the wireless charger automatically senses and starts charging.
1, you are normal no-load voltage with loadThe voltage is low. The no-load voltage is normal, indicating that your wireless charging transceiver circuit is normal, but the voltage is pulled down after the load, the most likely is that your coil matching is not good, resulting in insufficient power received by the output end, so the charging voltage will be pulled down.
2, wireless charger refers to the use of electromagnetic wave induction principle for charging equipment, the principle is similar to a transformer. There is a coil in the sending end and the receiving end. The sending end coil is connected to the wired power supply to generate an electromagnetic signal, and the receiving end coil senses the electromagnetic signal of the sending end to generate a current to charge the battery.
3. There seems to be a problem.That is, the backcharging problem. However, the output end of the wireless charging receiving module is generally through bridge rectification, and the reverse charge is not charged, but the working frequency of the wireless charging transmitting module is higher, and the received charging power signal will still be short-circuited by the high frequency of the charging head. The solution is to add a high-frequency diode to the output of the wireless charging receiving module for isolation.
4, electromagnetic induction is the most common working principle of wireless chargers. The transmitter generates a high frequency current through an AC power supply and an alternating magnetic field through an inductor. The inductor coil at the receiving end senses this magnetic field and converts it into electricityIt can charge the device. The advantage of this method is that the transmission efficiency is high and it is suitable for close charging. Electromagnetic radiation mode Electromagnetic radiation mode is a way of transmitting energy through electromagnetic waves.
5, the transmitting current will change, when the receiving end is not fully charged, the transmitting current will be relatively large. The principle is that the transmitting end is equivalent to the primary of the transformer, the receiving end is equivalent to the secondary, and only when the transmitting and receiving act together, a real loop is formed, which is equivalent to the magnetic loop of the transformer. Otherwise, it's like an open circuit, with only a small magnetic leakage.
Wireless charging PCB, different functions, the required components are different. The required components are: resistor, capacitor, resonant capacitor, resonant coil, MOS tube, control chip, protocol chip.
Wireless charging function requires a wireless transmitting module and receiving module, and now the new mobile phones launched by major mobile phone brands on the market have built-in wireless charging receiving modules, some of which are not includedDo not use the mouse to avoid damage. Charging try to use the original charger, which can extend the service life of the product battery.
2. Take Magicmouse2 as an example, there is a small lightning charging port at the bottom of the Apple wireless mouse, which can be directly plugged into the USB port of the computer with the charging cable of the iPhone or the data cable of the mouse, or charged directly with the charging head with the output of 5V/1A. The charging status can be seen in the Mac Settings mouse.
3, plug the other end of the charging cable into the USB port of the computer, or use the output of 5V/The charging head of 1A is directly charged. In the charging state, the LED light on the top of the mouse will appear green, and when fully charged, the LED light will turn orange. Expanding knowledge: The Apple Wireless Mouse refers to a wireless mouse produced and distributed by Apple Inc.
4. According to the information introduction on Apple's official website, the charger suitable for magicmouse must be a 5V2A charging head, so it is a dedicated charger. magicmouse is a rechargeable wireless mouse with an optimized foot design that allows the mouse to glide smoothly across the desktop.
5However, now there is a fast charge of 9V or even higher voltage, it may burn the small plug, and your wireless mouse will be scrapped. Can be plugged in to use, but the voltage of the mobile phone charger is slightly lower than the rated voltage of the small electric fan, can be used, but the fan speed is slow.
1, can be used, as long as the voltage is the same, the interface can be the same, the current is less than the original is no problem, the notebook will be hard according toThe disk needs to provide a suitable current. 2, From the power calculation, the power supply of 5V1A is only 5*1=5 (W), and the hard disk parameter requirements are 5*0.70 12*0.55=1 (W), which is far from meeting the requirements. Therefore, in order to drive this hard disk, you must use a power supply with both 5V and 12V outputs and the output current meets the parameters.
3, the general smartphone charger output voltage is 5V, output current 1 ~ 2A. Therefore, the output power is 5 ~ 10W. And the general feature phone, due to the smaller battery, loseThe output current is generally 0.5A, and the output power is about 5W.
4, input: 100-240v~50/60Hz, that is, the voltage is within 100V-240V (and 50-60HZ), and the current must reach 65mA. If the voltage is too high, the charger is easy to damage, too low to meet the output requirements. Output: 5V ~1000mA, the output value of 5V and 1000mA is specified that the electrical appliance must be 5V, and the current does not exceed 1000mA. After the battery is full, the standby (non-charging) power of the charger is within 0.3W.