source:Industry News Popular:adapter release time:2022-04-15 09:55:45 Article author:yu
With the increase of digital products, more and more chargers are available. Many people leave the charger on the socket all the time, but they don't know that this power consumption is very serious. If one-eighth of the country's 1 billion mobile phone users left the charger at the socket, it would consume enough power to run 6,000 household air conditioners at the same time. At this time, we can't help but wonder, why does the charger consume power? How much electricity will it consume? The following Senshuqiang power experts will answer you one by one!
Why does the charger consume power?
Most mobile phone chargers are switching power supplies. First, 220V is rectified into DC power, and then through high-frequency conversion and pulse transformer coupling, unidirectional rectification outputs low-voltage DC. Even if there is no output current, the high-frequency conversion part is still working and needs to consume part of the power. For example, the control circuit in the charger mainly senses whether the mobile phone is connected to the charger. When the charger is not connected to the mobile phone, the control circuit is also working. Another example is the load element (the indicator light of the individual charger), which is also working when it is plugged into the power supply, and also consumes part of the power. In short, devices such as chargers will inevitably consume power when they are plugged into the power supply.
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