Generate pulse for PWM-controlled DC-DC converter
The PWM Generator (DC-DC) block outputs a pulse to fire the MOSFET, GTO, or IGBT switch of a one-quadrant converter (buck or boost). The duty cycle of the generator is specified by the input D. A value between 0 and 1 determines the percentage of the pulse period that the output is on.
|Sample Time||Specified in the Sample Time parameter|
Continuous if Sample Time = 0
The power_PWMGeneratorDCDCpower_PWMGeneratorDCDC example shows the operation of the PWM Generator (DC-DC) block. Run the simulation for various duty cycles values and observe the resulting voltage and current on the Scope block.
The model sample time is parameterized with variable Ts (default value Ts=500e-9). To run a continuous simulation, specify Ts = 0 in the MATLAB Command Window, and set the Simulation type parameter of the Powergui block to Continuous before starting the simulation.