September 13, 2016
Via: Electronic DesignLow-power applications such as e-meters (electricity or energy meters) often require a simple ac line-powered supply where a 3.3-V rail powers a microcontroller and charges a lithium-ion battery to 4.2 V. You can implement this with a mains-frequency power transformer […]
April 12, 2024
April 10, 2024
April 12, 2024