Voltage regulation, charging, inverter three-function instrument circuit

Published:2011/7/17 22:29:00 Author:TaoXi | Keyword: Voltage regulation, charging, inverter, three-function, instrument | From:SeekIC

The voltage regulation, charging, inverter three-function instrument can charge the battery when there is the city electricity, When the power is outage, the battery inverts the 220V AC for the household appliances, when the grid voltage is too high or too low, you can adjust the output voltage to 220V manually to ensure the safety of the electric equipments. The circuit of the three-function instrument is as shown in figure 3-6. In this figure, when the switches S1 and S2 are in the A position, the circuit is in the inverter status. The left part of the circuit forms the self-excited oscillator to produce the 50Hz square wave, and this wave is boosted by the transformer and adjusted by S3 to be the 220V output. When the S1 and S2 are in the B position, the circuit is in the charging state.



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