AN4164: The first half of this application note describes the use of the capacitive supply for a single-phase energy metering application. A detailed analysis of the power requirements
AN4164, A Single-Phase Energy Meter with Capacitive Power Supply and Shunts - Application Notes
AN4164: The first half of this application note describes the use of the capacitive supply for a single-phase energy metering application. A detailed analysis of the power requirements