The conversion rate is not high.
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Although many mobile phones support wireless charging function, wireless charging has not been widely popularized, in addition to the high power fast charging of wired charging, wireless charging is more hot than wired charging, and the low conversion efficiency has become a limiting factor for development.
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Wireless charging conversion efficiency is low bottleneck
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Compared with wired charging, wireless charging has more coils and rectifier filter circuits, etc., which not only increases the heating problem during charging, but also greatly affects the efficiency of charging. At this stage, the efficiency of wireless charging is mostly between 65% and 75%, while the efficiency of wired charging is up to 95%, and there is a big gap between the two charging methods.
The efficiency is very high, it only takes 20 minutes to achieve the normal full effect, because the charging power of wireless charging is relatively large, the charging power is 66 watts of charging power, and the voltage can reach 12 volts, so the charging is very fast