Energy conversion and collection device

The invention discloses an energy conversion and collection device which comprises an energy collection circuit, an energy conversion circuit, an electric energy quality detection circuit, a step-up and step-down circuit, a safety protection circuit and a charging circuit. The energy conversion circuit is used for converting various kinds of collected energy into direct current in real time, the electric energy detection circuit is used for detecting the voltage and current of the converted direct current, and the voltage boosting and reducing circuit is used for automatically boosting or reducing the voltage of the converted direct current according to the detection result so as to meet the requirements of the charging circuit. The charging circuit is used for storing the collected energy in the battery; and the safety protection circuit is used for protecting charging and discharging of the battery. The energy conversion and collection device has the beneficial effect that the energy absorption efficiency p