Inverter circuit having switching device with gate driven by high-voltage integrated circuit
AssigneeFairchid Semiconductor Corporation
InventorsByoung-chul Cho, Byoung-ho Choo, Bum-seok Suh
Life of this patent
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Abstract
Provided is an inverter circuit including a switching device which performs a switching operation corresponding to a gate control signal input to a gate terminal, converts an input DC to an AC, and outputs the AC; an HVIC which inputs the gate control signal to the gate terminal of the switching device; a controller which inputs to the HVIC a control signal for enabling the HVIC to generate the gate control signal; a bootstrap circuit which transmits energy to a high-side region of the HVIC; and an impedance cell which is located between the HVIC and one terminal of the switching device to reduce voltage drop of the high-side HVIC.
Claims14
An inverter circuit comprising:
- a switching device operable to perform a switching operation corresponding to a gate control signal input to a gate terminal, convert an input direct current to an alternating current, and output the alternating current;
- an HVIC operable to input the gate control signal to the gate terminal of the switching device;
- a controller operable to input to the HVIC a control signal for enabling the HVIC to generate the gate control signal;
- and
- an impedance cell located between the HVIC and one terminal of the switching device operable to reduce voltage drop when the switching device turns off and operable to reduce transition speed when the switching device turns on.
Dependencies are inferred from the claim text.