Physically, electrical energy is converted into chemical energy, and the electric field force is used to transport electrons to react the material in the battery, and the electrical energy is stored in the form of chemical energy.
The battery receives electrical energy from the external circuit and converts it into the chemical energy of the battery. After the battery energy is consumed by discharge, it can be restored by charging, and it can be re-discharged to form a charge discharge cycle. Generally charged with DC current (also useful asymmetric AC current or pulse current).
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In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, rapid charging or the combination of these methods.
According to the formula of power = voltage * current * time, in the case of fixed power, the charging time can only be shortened by increasing the voltage or increasing the current
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The process by which the battery receives electrical energy from the external circuit and converts it into the chemical energy of the battery. After the battery energy is consumed by discharge, it can be restored by charging, and it can be re-discharged to form a charge discharge cycle. Charge with direct current. In different cases, different charging methods are used, such as constant current charging, constant voltage charging, floating charging, trickle charging, rapid charging or the combination of these methods.
According to the formula of power = 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 charging: high voltage low current mode, increase voltage, need to design multiple buck circuit in the charging circuit. When charging, the charger will heat up, the phone will also heat up, and affect the safety of the battery.
Low voltage charging: Low voltage high current mode, increase the current, MCU MCU is introduced in the charger circuit and battery circuit to replace the buck circuit. Under the premise of low voltage and high current, the output of segmented cross current is realized by opening voltage loop. VOOC flash charge uses the solution of low voltage and high current, which ensures the safety and solves the problem of mobile phone charging heat.
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Forward energizing, the current charges the capacitor, and the circuit passes forward.
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Reverse power, capacitor discharge, generate current, continue to charge the capacitor after discharge, reverse guide.
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Definitely direct current. When the capacitor is separated from the power supply, the voltage of the capacitor has been fixed, and in the absence of charge and discharge, the voltage value retains the instantaneous value of the discrete alternating current between the power supply and the capacitor, which may be the maximum value, or it may be zero or other values.
The charging method is a method of injecting charge into a battery or capacitor through an external power source. The principle is to use the voltage difference between the positive and negative terminals of the power supply to transport the charge from the positive terminal to the negative terminal, so that the amount of charge inside the battery or capacitor increases.
During the charging process, the positive electrode of the power supply is connected to the positive electrode of the battery or capacitor, and the negative electrode is connected to the negative electrode, forming a closed circuit. Through the wires and electrolytes in the circuit, charge can flow between the positive and negative electrodes, thus achieving charge. The charging method can be used in a variety of electronic devices and energy storage systems to provide a continuous power supply.