DIFF Subgroup Additional Only
H02P 2209/09 PWM with fixed limited number of pulses per period
Full Title
Indexing scheme relating to controlling arrangements characterised by the waveform of the supplied voltage or current > PWM with fixed limited number of pulses per period
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.