Apparatus and method for providing supplemental alternating curr

Details Apparatus and method for providing supplemental alternating curr Apparatus and method for providing supplemental alternating curr

1997-05-29

1999-04-27

Sterrett, Jeffrey

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 95, 363136, H02M 748

Patent

active

058985859

ABSTRACT:
A novel solar inverter circuit is used to connect a solar photovoltaic (PV) array with an alternating current (AC) voltage source to convert direct current (DC) power from the PV array to AC power. The solar inverter circuit employs the current-voltage (I-V) characteristic of the PV or solar cell, and an H-Bridge circuit with gate controller. The gate controller synchronizes the H-bridge with the AC voltage source. The PV array and the solar inverter circuit can plug directly into a residential AC plug and provides electrical power as a supplementary AC supply. Electrical energy required by the home appliances is supplied by the municipal AC line and solar energy concurrently. Advantages of the solar inverter circuit of the present invention include the flexibility of using the solar inverter circuit with any number of solar cell panels through the implementation of an impedance transformer, and the implementation of an additional, optional output for DC battery charging.

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patent: 5625539 (1997-04-01), Nakata et al.
patent: 5668713 (1997-09-01), Eguchi et al.
patent: 5677833 (1997-10-01), Bingley
patent: 5719758 (1998-02-01), Nakata et al.

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