With the release of Bluetooth 5.0, the transmission and power consumption problems of THE TWS Bluetooth headset were solved, and the market grew rapidly after The introduction of Apple's AirPods.In 2019, Samsung, Sony, Huawei, Xiaomi and other mobile phone brands have also launched TWS Bluetooth headsets, which is expected to drive the shipment of TWS Bluetooth headsets to 78 million groups this year, with an annual increase of 52.9%. The market share of TWS Bluetooth headsets is constantly increasing.But as the TWS bluetooth headset the increasing market share of the quality problem of the TWS headphones and charging problems began to attention by the public, therefore collocation of TWS bluetooth headset charging storehouse also began to enter the public view, and we want to do today is in TWS affect charging utility TWS in charging storehouse headsets thimble.The word TWS earphone thimble may be relatively unfamiliar to everyone. Let's analyze the application of TWS earphone thimble in Bluetooth earphone.

  For THE Pogo pin of TWS earphone, first of all, we need to know where the Pogo pin is used and its purpose. The PCBA power supply in the charging box of TWS earphone has two main uses.The TWS earphone Pogo Pin is not only responsible for charging the internal battery of the charging case, but also the internal battery output of the charging case to charge the headset.In addition, it also has a safety protection function to prevent the built-in lithium battery from over charging, over discharging, short circuit and over current

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  First, the TWS earphone Pogo pin charges the TWS earphone battery case and charges the external charger into the lithium-ion battery.The external chargers here are mainly 5-volt chargers, like a regular phone adapter, with a MicrousB or USB-C interface, and then buck down to 4.2 volts to allow the lithium-ion battery to charge.In addition, there are more than 4.3V or 4.35V specifications.At present, there are two commonly used charging methods: linear charging chip and switch charging chip. The switch charging efficiency is high and the heating efficiency is low, which is the mainstream charging method at present.

  Secondly, the PCBA power supply of the TWS headset battery case also needs to provide external power supply to the TWS Bluetooth headset through the TWS headset Pogo PIN.At this point, the lithium-ion battery will be boosted to 5 volts and then output to the headset.The headset charges the built-in battery via an internal charging circuit.This way, when the TWS headset needs power, the TWS earphone thimble can put it back into the charging box to automatically replenish the power supply.The charging box booster chip is divided into synchronous and asynchronous two kinds, the synchronous structure of high efficiency, low heat, asynchronous rectifier efficiency is low, the principle of mobile power supply is the same.

  The TWS earphone Pogo pin plays the role of connector, connecting the charging bay and the earphone, building a bridge between them, so that the power can be transported normally and the normal use of the product can be guaranteed.

  This is the basic introduction of TWS earphone thimble. I hope the above content can help you understand this aspect.

If you want to know more details about pogo pin.

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