lab 3

Step-Down DC To DC Converter. Vctldc is not a separate voltage input. Along with the polarity of the control input of the switch, Vctldc reverses the effect of the high and low states of Vctlsqw. This allows the switch to be initially off at the start of simulation. Switch will be ON when Vctlsqw is LOW. Saved duty cycle for Vctlsqw is 60%. Transient simulation Start time must be equal to zero to see the start-up waveforms.