Prepayment Electric Energy Meter with Multi-Functional for Multi-User Based on STC11F52XE

Based on the application of the single-phase electric energy meter, selected the STC11F52XE microcontroller of STC micro technology company and energy measurement chip CS5460A of Cirrus Logic as the controller, sampled the user's voltage and current by time-sharing sampling with the multi-channel analog switch, controlling the ON/OFF of the electric energy of multi-user with the bidirectional holding magnetic relay, design a prepayment electric energy meter with multi-functional for Multi-user based on GPRS communication technology. This meter achieves the electric energy meter standard with one-level.