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Of course, it is more reliable, because his charger is not too expensive, so it is still relatively reliable.
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This Apple charger, I think it's still relatively ordinary, not to say that it is very reliable, you can buy a dedicated Apple charger.
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I think the pineapple interesting mobile phone charging is very reliable, but its appearance is like a pineapple, so this kind of charger is very reliable.
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This charger is still relatively reliable, I have used it, and the quality and charging speed are okay.
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Hello, I haven't heard of this pineapple to this charger, it shouldn't be very reliable, it is recommended that you still buy **.
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As long as it is a charger, it is generally possible, and if the price is the same, it is best to go to the official website to buy it.
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I think some of these bells and whistles chargers are not very reliable, you can choose carefully.
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The plane snorkel that has gas in the crowd is still relatively reliable.
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Apple chargers have accessories, and accessories are generally reliable.
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This charger doesn't seem to have stopped, you'd better go to the store to get a professional charger, because some chargers can charge the phone.
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To use the charger of the mobile phone, it is better to use the original one, and it is better to use Apple's own charger.
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Then this barbecue is still very good, and the words that are reliable are not reliable, you and I can't pick it up.
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Hello, if you charge outside, you must pay attention to safety, and it is best to buy a power bank yourself, which is more convenient.
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This reason should still be on the official website,Otherwise, it will have a bad impact on this TVă
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Is the apple charger for pineapple fun reliable? I don't think it's reliable, so it's better to buy the original factory.
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Hello, this Apple charger is still more reliable, you can look at his quality, *** and then buy it.
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Fang Lin, is the interesting Apple charger reliable, it is quite reliable under normal circumstances.
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It depends on what kind of voltage the phone chip supports, and the phone chip may damage the phone chip if it cannot be charged with a 5V charger rashly using a 9V charger.
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The difference is that five volts are used for ordinary charging, nine volts are used for flash charging of mobile phones, and 9V requires mobile phones to have flash charging functions.
A mobile phone charger is a device that provides a stable power supply (providing stable working voltage and sufficient current) plus necessary control circuits such as constant current, voltage limit, and time limiting, mainly to provide energy for the energy storage device. It is widely used in digital devices such as mobile phones in daily life.
Mobile phone chargers, also known as mobile power banks and power banks, are actually composed of a stable power supply and necessary control circuits such as constant current, voltage limiting, and time limiting. Mobile phone chargers can be roughly divided into travel chargers, cradle chargers and maintenance chargers, and the first two are mainly exposed to by general users. The most sold on the market is the travel charger, and the forms of travel chargers are also diverse, including the most cheap duck egg-type micro travel chargers, ordinary desktop pallet chargers, and high-end desktop chargers with LCD displays.
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Currently mobile phone copy.
Fast charging technologies are mainly divided into two categories: low-voltage and fast.
BAI charging, high-voltage fast charging. du
OPPO's VOOC flash charge makes zhi
The solution idea of low voltage and high current DAO is used, which not only ensures safety, but also solves the problem of mobile phone charging and heating, whether it is the adapter or the mobile phone will no longer heat up when charging.
1.Compared with ordinary mobile phones, the charging speed is four times faster, and the charging speed is faster than all mobile phones on the market (including other fast-charging mobile phones).
2.All-round aerospace-grade protection, 20 million users have not had a safety problem at present3Low-voltage fast charging does not get hot.
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At the moment the hand comes quickly.
Charging technologies are mainly divided into two categories: low-voltage fast charging and high-voltage fast charging.
There are four main types of fast charging technologies for mobile phones: VOOC flash charging (fast charging technology for OPPO charging for 5 minutes and 2 hours of calls), Samsung Fast Charge, Qualcomm Quick Charge, and MediaTek Pump Express.
According to the formula of electricity = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current.
High voltage and low current mode: Increase.
To increase the voltage, it is necessary to design multiple step-down circuits in the charging circuit. In general, the charging process of mobile phones is to first step down the 220V civil voltage to the 5V charger voltage, and then the 5V charger voltage to the battery battery.
Press. There is a step-down circuit in both the charger and the mobile phone circuit, so when charging, the charger will heat up, and the phone will also heat up. Heating brings a bad experience and affects the safety of the battery.
Low Voltage High Current Mode:
Increase the current, and introduce MCU monolithic microcomputers in both the charger circuit and the battery circuit to replace the step-down circuit. Under the premise of low voltage and high current, the output of the current with segmented cross-flow is realized through the open voltage loop.
OPPO's VOOC flash charge uses the solution idea of low voltage and high current, which not only ensures safety, but also solves the problem of heating up the mobile phone when charging, whether it is the adapter or the mobile phone will no longer heat up when charging.
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According to your description, I think you should be talking about the principle of fast charging technology, if you just think of it as inside.
Switching the capacitor source would be wrong. Fast charging technology is actually to shorten the charging time by increasing the voltage or increasing the current when the power is fixed. For example:
The VOOC flash charging technology used in the OPPO R7S uses a low-voltage and high-current mode, which is much better than the high-voltage mode, because it can avoid the charger and battery heating during the charging process, which can cause damage to the battery.
VOOC flash charging is different from general charging, it implants a micro smart chip "flash core" in the power adapter, the flash core intelligently adjusts the current, intelligently identifies the flash charging conditions, improves charging efficiency, and reduces the heat generated when the mobile phone is charging. Use a full set of customized hardware equipment, from power adapters, charging cables, interfaces to batteries, with 5 layers of protection at all ends to ensure charging safety. The advanced VOOC flash charging technology makes the OPPO R7S a well-deserved charging king.
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Not recommended.
The rechargeable batteries from each manufacturer are equipped with corresponding chargers, which are designed to give an optimal charging current for their own batteries, which is undoubtedly beneficial to improving charging efficiency and prolonging the service life of the battery. Use the charger of the mobile phone to charge the camera battery, it is possible that the charging current is too small and cannot be charged for a long time; It is also possible that the charging current is too high, which will affect the battery life. In addition, the charger of the mobile phone is uneven, and the cheap universal charger has no "overvoltage" and "overcharge" protection circuits, which is easy to cause overcharging and shorten the battery life.
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It's best not to, the output current and voltage of the camera's power adapter and mobile phone charger should not be the same, and it is best to use the original charger.
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Input: 100-240V 50 60Hz Output: 550mA Input is 100 watts.
The reason why 100 is used is because the parameter is in the limit case, if 240 is used, the current is not available. The output power is 5 watts. It is only in the state of charging, and if there is no current without charging, there will be no output power.
Note: The input power is only available when the charger is fully loaded, i.e. if you are charging at 550mA, the power consumption is 20 watts. If you are not charging, or the charge is almost full, and the current is small, the power will be small and negligible.
If you don't believe it, you can look at your meter, in the case of a small current charge or a full charge, the meter will not turn to ask for acceptance.
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The picture shows the OnePlus mobile phone charger. Dash fast charging.
The wattage of the mobile phone charger generally refers to the output part, and the output wattage = output voltage x output current. The traditional 5V1A charger has a 5W output; 5v2A is 10 watts of output.
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Input: 100-240VAC, 50 60Hz, Output: 5V=3A 9V=2A 12V=
How many watts is this charger?
Help take a look, thanks!
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The general charger has a minimum input of 20 watts (AC, mains power consumption) and an output of 5-10 watts (mobile phone consumption), and the power of the fast charging charger is even greater.
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It is recommended not to do this, not only will it harm the charger and the phone, but it may also have certain safety risks, especially if the other end is connected to the phone.
The charger is always plugged into the socket, even if the phone is not charged, but the circuit board inside the charger is energized, so the charger is in working condition and will consume power.
Let the charger be plugged into the socket for a long time, because the charger is composed of electronic components, there will be microcurrent through the socket all the time, which will cause heating for a long time, easy to cause the aging of components, and some will also have a short circuit, which will greatly shorten the life of the charger.
The charger has been plugged into the socket, if the charger is of inferior quality, its own heating is serious, plus its own living environment is closed and the weather is hot in summer, it is easy to create an environment for the charger to spontaneously combust and explode.
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It can be, but it may be dangerous, plug it for a long time, and if the quality is poor, it may be fried.
So it's best to take it off when not in use.
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If you don't unplug it, it will consume electricity, and the power consumption situation is negligible for the family's electricity consumption, which can be ignored, and it is best to unplug it from the perspective of saving.
In addition, it will accelerate the aging of the charger and shorten the life of the charger if it is plugged in all the time.
I basically haven't pulled it out.,Lazy.ăăă
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Phone charger stuck in socket all the time? It would be nice to know sooner rather than later, remind the family.
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Phone charger stuck in socket all the time? It turns out that I did something wrong before, so tell my family.
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Yes, there is no current without charging, and it will not generate heat.
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Theoretically, as long as the phone charger matches the specifications of the digital camera battery, it can be charged.
Actually, the specifications of these two things are different. So it can't be charged.
In addition, if you want to charge a digital camera, you must install the battery in the charger that comes with it. It is not possible to charge the fuselage directly.
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Purpose of charger for mobile phones and digital products for electric vehicles:
In order to adapt to the rapid development of electric vehicles, the number of users of electric vehicles is increasing. Electric vehicles have a huge mobile power supply capacity; people's dependence on and necessity of electric vehicles, mobile phones, and digital products; Huichuang Yuan (Shenzhen) has developed emergency mobile phones and digital product chargers for electric vehicles, which are convenient for customers to use. Scope of application:
Daily electric vehicle charging port, plug in the charger to charge the mobile phone directly. Compatible with electric vehicles used. The product has a wide voltage input, which can be input in 36V-72V AC and DC. The output is 5V500mA DC, which can charge mobile phones and digital products.
Applicable Population and Market Analysis:
1. The product is an external electronic device, which can be pulled out at any time when the user does not need it, and there is no loss of electric energy for electric vehicles. This point directly removes the idea of charging built-in devices. Energy-saving green products.
2. Strong applicability and wide application. It is most suitable for office workers; long mobile phone talk time; Leaky charge; Spend a lot of time on your phone; couriers; Away from work, business sales friends; People who work with electric vehicles for a long time; Friends who like digital products Walkman; Worried about the sudden loss of battery on your phone; Meet the needs of people who need to charge electric vehicles anytime, anywhere.
3. The application place is not restricted. commuting by bike; Parking lot; As long as there is an electric car, it can be charged, and as long as it needs to be charged, you can use this convenient charging device to meet you.
4. Powerful power storage equipment for electric vehicles can meet the charging needs of users at any time.
Huichuang Yuan (Shenzhen)**** Producer: Liu Gong.
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The output of the mobile phone charger is usually direct current, you can use the formula p = ui, that is, the maximum output power = rated output voltage maximum output current, the unit of voltage is v, the unit of current is a, then the unit of power is w. If the unit of current is ma, the unit of power is.
2.The charger is not a pure resistive load, and the power factor is not 1, so the input power cannot be calculated using this formula, and the input power should be p=uicos.
3.The input current of 200mA refers to the maximum input current (generally marked 200 300mA), not the input current when actually working, and represents the input current when working at full load under the minimum input voltage (rounded with a little margin).
The working voltage range of the power supply is generally nominal 100 240V, and the actual design is 90 265V.
4.Alternating current, 220V and 200mA both refer to the RMS, and because AC input is a rectifier bridge, the current is nonlinear, and the direct multiplication of the RMS value of voltage and current is not equal to the active power (to multiply by the power factor, for the small power supply without PFC, it is generally measured left and right), and the most convenient way to measure the input power is to use a power meter.
5.The energy efficiency of mobile phone chargers is generally 70 80%, and the specific indicators are related to the output power, which refers to the calculation formula of EPA or COC fifth edition standards.
Simply do the math:
5V1A power supply, according to the United States VI energy efficiency requirements efficiency greater than, according to the EU COC fifth edition requirements for high efficiency power supply, according to the United States VI energy efficiency requirements greater than efficiency, according to the EU COC fifth edition requirements for efficiency greater than the next 5V1A power supply: output power: 5V * 1A = 5W efficiency is calculated at 74% (** calculated above), 6Then the active 5W power factor of AC input is taken empirically, then the AC input apparent power.
At the minimum input voltage, the RMS value of the input current: , take 20% margin to obtain 200mA.
That is to say, the subject's problem, the input and output power difference is so much, mainly because the input power is miscalculated (should be calculated according to 100V), and the conversion ratio of power factor * efficiency is undercalculated.
There is an impact, because the capacity of MP4 batteries is very small, 500 mAh is much larger than 300 mAh, nearly twice as much, if you charge a 300 mAh battery with a 500 mAh charger, the battery will be charged, and sometimes it may be charged, the original charger It is designed for batteries, but don't worry, just use the charger you bought, and unplug the charger in time when you see it full. Estimate that your 500 mAh charger will charge a lot faster than your original charger ! Fast charging is not as good as slow charging!
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If only from the point of view of charging, the problem is not big, because the requirements for the data cable when charging are actually very low, only when it comes to the transmission of data, there will be high requirements, ordinary imitation wire, may be reduced in the transmission rate of data, but there is no impact on the service life of the mobile phone, the speed of the original Apple cable will be faster when transmitting data, and the ordinary imitation line may be a little slower.
Fake. It is recommended to go to a physical store to buy it.
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