US PATENT SUBCLASS 363 / 41
.~.~.~ By pulse modulation technique (e.g., PWM, PPM, etc.)

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}
41.~.~.~ By pulse modulation technique (e.g., PWM, PPM, etc.) {1}
42  DF  .~.~.~.~> Including notching

DEFINITION

Classification: 363/41

By pulse modulation technique (e.g. PWM, PPM, etc.):

(under subclass 40) Subject matter wherein each half cycle of the basic inverter frequency is divided into two or more pulses in accordance with a modulating waveform.

(1) Note. The most common technique in this subclass is

pulse width modulation.

SEE OR SEARCH CLASS

307, Electrical Transmission or Interconnection Systems,

265+, for systems having signal shaping, converting or generating means with pulse width control.