1. Introduction
Bluetooth technology has been around for 20 years since it was launched by Ericsson in 1994. From the initial Bluetooth V1.0 to Bluetooth V5.0 (the latest is V5.2, released in 2020), i
[i=s]This post was last edited by qwqwqw2088 on 2019-2-14 10:52[/i] [size=4] A switching power supply (SMPS) is a very efficient power converter, with a theoretical value close to 100%, and there are