US PATENT SUBCLASS 363 / 43
.~.~.~ By step-wave, amplitude summation technique

Current as of: June, 1999
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363 /   HD   ELECTRIC POWER CONVERSION SYSTEMS

13  DF  CURRENT CONVERSION {25}
39  DF  .~ With means to introduce or eliminate frequency components {2}
40  DF  .~.~ In inverter systems {2}
43.~.~.~ By step-wave, amplitude summation technique

DEFINITION

Classification: 363/43

By step-wave, amplitude summation technique:

(under subclass 40) Subject matter in which a plurality of square waves are selectively combined to provide stepped waveform approaching a sine wave.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

107, for inverters with waveform or wave shape determining systems.