Transformerless 3 phase power inverter
December 7, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesLow cost self-contained transformerless solid state electronic watthour meter having thin film ferromagnetic current sensor Stabilized power supply unit High power factor, voltage-doubler rectifier Boost topology with two outputs for power factor correction application Dual-output boost converter having enhanced input operating range Transformerless DC-to-AC power converter and method Patent #: 6198257 InventorAssigneeApplicationNo. 732063 filed on 12/07/2000US Classes:363/41, By pulse modulation technique (e.g., PWM, PPM, etc.)363/17, Bridge type363/56.02, Bridge type363/98For bridge-type inverterExaminersPrimary: Vu, Bao Q.Attorney, Agent or FirmForeign Patent References
International ClassesH02M 001/12H02M 007/04 H02H 007/122 AbstractThe invention in the simplest form is an improved transformerless 3 phase power inverter topology and control method for power distribution systems. This 3 phase power inverter system provides the necessary output voltage and current waveform regulation, harmonic distortion rejection, very low output impedance, and ultra low DC offset of the output AC power, even when exposed to a high magnitude of the non-linear, single phase, or the unbalanced loading. | |
