Inverter generator

Details Inverter generator Inverter generator

2011-06-21

2011-06-21

Patel, T C (Department: 2839)

Electricity: single generator systems

Automatic control of generator or driving means

Electrical conditions in circuit other than that of...

Reexamination Certificate

active

07965063

ABSTRACT:
In an inverter generator having an engine generator unit, a converter that converts generated alternating current to direct current, an inverter that converts the direct current to alternating current with switching elements to supply to an electrical load, an inverter driver that drives the switching elements with a PWM signal and makes the alternating current of a predetermined frequency, the alternating current supplied to the electrical and voltages of the direct and alternating currents are detected, the detected voltage of the alternating current is corrected as a predetermined value based on a coefficient (DCgainA) set based on the detected voltage of the direct current, when the detected alternating current is greater than a threshold value, and the PWM signal is corrected by the predetermined, thereby limiting overcurrent.

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patent: 6949902 (2005-09-01), Nakayama et al.
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patent: 7183750 (2007-02-01), Asada
patent: 2003/0039130 (2003-02-01), Curtiss
patent: 1289117 (2003-03-01), None
patent: 4-355672 (1992-12-01), None

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