Inverter-filter non-linearity blanking time and zero current clamping compensation system and method
AssigneeAzure Dynamics, Inc.
InventorDorin O. Neacsu
Life of this patent
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Abstract
Inverter-filter non-linearity blanking time and zero current clamping compensation is accomplished by comparing the average output current with the discontinuous current mode threshold values to determine when the average output current is entering a discontinuous current mode and introducing a compensation voltage to the inverter drive voltage in response to the average output current entering a discontinuous current mode to compensate for discontinuous current mode distortion of the inverter output voltage.
Claims19
An inverter-filter non-linearity blanking time and zero current clamping compensation system comprising:
- a current measurement circuit for measuring an average output current of an inverter;
- a comparator circuit for comparing said average output current with discontinuous current mode threshold values for determining when said average output current is entering a discontinuous current mode;
- and
- a compensation circuit, responsive to said average output current entering a discontinuous current mode, for introducing a compensation voltage to the inverter reference voltage to compensate for discontinuous current mode distortion of the inverter output voltage.
An inverter-filter non-linearity blanking time and zero current clamping compensation method comprising:
- comparing an average output current with discontinuous current mode threshold values to determine when the average output current is entering a discontinuous current mode;
- and
- introducing a compensation voltage to an inverter reference voltage, in response to the average output current entering a discontinuous current mode, to compensate for discontinuous current mode distortion of the inverter output voltage.
Dependencies are inferred from the claim text.