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What factors affect the energy conversion efficiency of Mobile Power and how to improve it?

Publish Time: 2024-11-14
Influencing factors

The energy conversion efficiency of Mobile Power is mainly affected by the internal circuit design, battery performance, and the charging and discharging process. In terms of circuit design, the type and quality of the conversion circuit are crucial. For example, the use of low-quality DC-DC converters will cause energy to be lost in the form of heat during the conversion process, reducing the conversion efficiency. The internal resistance of the battery is also one of the key factors. The larger the internal resistance, the more serious the battery's own heat will be during the charging and discharging process, and the more energy will be consumed, which will reduce the conversion efficiency. In addition, the current size of charging and discharging will also affect the efficiency. Excessive charging current may cause the battery polarization phenomenon to intensify and fail to fully store electrical energy; while excessive discharge current will cause incomplete chemical reactions inside the battery, which will also cause energy waste.

Circuit optimization

To improve the energy conversion efficiency, we can first start with circuit design. Selecting high-quality and high-efficiency conversion chips, such as synchronous rectification DC-DC chips, can effectively reduce energy loss. Optimizing circuit layout, shortening the current transmission path, and reducing line resistance can also help improve efficiency. For example, using a multi-layer PCB design and rationally planning the location of each electronic component can make power transmission smoother. At the same time, the intelligent control function of the circuit is added to dynamically adjust the charging and discharging current and voltage according to the battery power, voltage and the needs of external devices to ensure that it can operate at a higher efficiency under different working conditions. For example, when the battery power is low, trickle charging is used to reduce heat and improve charging efficiency; when discharging, the output voltage and current are intelligently matched according to the power requirements of the external device.

Battery Management

Good battery management is indispensable for improving energy conversion efficiency. Regularly calibrate the battery to ensure that the battery management system (BMS) can accurately obtain information such as the battery power and voltage, so as to more accurately control the charging and discharging process. Optimize the BMS algorithm, such as using a more advanced power estimation algorithm to avoid overcharging or overdischarging caused by inaccurate power estimation. In addition, through battery balancing technology, the voltage and power of each battery cell in the battery pack are kept consistent, reducing energy loss caused by cell differences. For example, during the charging process, the battery cells with lower voltage are charged separately, so that the entire battery pack can store electrical energy more fully and improve energy conversion efficiency.

Use and Maintenance

When using Mobile Power, there are also some ways to improve energy conversion efficiency. Try to avoid using Mobile Power in high or low temperature environments, as extreme temperatures can affect battery performance and circuit efficiency. Use the original charging cable and adapter to ensure the stability and compatibility of the charging process. When Mobile Power is not in use for a long time, it should be stored with an appropriate amount of power (generally around 50%) to avoid excessive self-discharge of the battery. Regularly performing a full charge and discharge cycle on Mobile Power will help activate the chemical reaction inside the battery, maintain battery performance, and indirectly improve energy conversion efficiency. Through these use and maintenance measures, the energy conversion efficiency of Mobile Power can be guaranteed to be at a good level to a certain extent, extending its service life and improving the user experience.
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