Integrated inverter apparatus and method of operating the same
OwnerYuan-Fang LAI, Ying-Sung CHANGinventors
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Abstract
An integrated inverter apparatus and a method of operating the same are disclosed. The integrated inverter apparatus includes at least two inverter units and a control unit. The inverter units are electrically connected in parallel to each other. At least one of the inverter units has a plurality of field-effect transistor (FET) switches and at least another one of the inverter units has a plurality of insulated gate bipolar transistor (IBGT) switches. The control unit is electrically connected to the inverter units to control the transistor switches of the corresponding inverter units when an optimal efficiency of the integrated inverter apparatus is reached at different operation conditions of the inverter units.
Claims20
An integrated inverter apparatus comprising:
- at least two inverter units, the inverter units electrically connected in parallel to each other;
- at least one of the inverter units having a plurality of field-effect transistor switches and at least another one of the inverter units having a plurality of insulated gate bipolar transistor switches;
- and
- a control unit electrically connected to the inverter units to control the transistor switches of the corresponding inverter units when an optimal output efficiency of the integrated inverter apparatus is reached at different operation conditions of the inverter units.
A method of operating an integrated inverter apparatus, the method comprising:
- (a) providing at least two inverter units;
- wherein at least one of the inverter units having a plurality of field-effect transistor switches and at least another one of the inverter units having a plurality of insulated gate bipolar transistor switches;
- (b) providing a control unit to obtain an optimal output efficiency of the integrated inverter apparatus reached at different operation conditions of the inverter units;
- and
- (c) controlling the transistor switches of the corresponding inverter units by the control unit when the integrated inverter apparatus is operated at the substantially optimal output efficiency.
Dependencies are inferred from the claim text.