4, the average current and dither amplitude according the PWM frequency and duty cycle
were estimated from the mathematical model.
vehicle(i)] is the overall composite duty cycle
for the i-th type of vehicle.
For the first test, the duty cycle
was set to 50%, and the frequency varied from 0.
As can be seen, the switching frequency of the converter in steady state held constant regardless of the variation in the output voltage or duty cycle
Table 1: Percentage duty cycle
V/S Output Speed % Duty cycle
15 25 35 45 55 65 75 85 95 Output 370 540 690 900 1098 1278 1488 1670 1850 Speed(RPM)
S6 -- Continuous operation--periodic duty type: A sequence of similar duty cycles
at constant load separated by no-load--but continuously running--condition.
The output of the SEPIC is controlled by the duty cycle
of the control transistor.
Compared with alternative machines, these new models benefit from a 70% smaller footprint, an 80% lower weight and the ability to operate at higher duty cycles
: at a 100% duty cycle
both machines deliver 300A at 32V while the output can be maintained at 400A/36V by the 4004i and 5004i machines operating at 60 and 80% duty cycles
Shih, "ADCA: an asynchronous duty cycle
adjustment MAC protocol for wireless sensor networks," in Proc.
4V on a 25% duty cycle
, or 100A at 14V on a 60 % duty cycle
Using Proportional Control Algorithm an error signal is computed to adjust the PWM controller duty cycle
The processor computes a duty cycle
value that is put out to each gate driver (excluding any duty-cycle adjustments made to balance the current phases).