In this video, we analyze the practical Boost Converter circuit in order to understand how the inductor current ripple and capacitor voltage ripple depend on the inductance and capacitance of the converter. We develop closed-form equations that can be used for design purposes.
Then, we define the continuous conduction mode (CCM) and discontinuous conduction mode (DCM) and examine the converter's operation under DCM operation, including the conversion ratio.
If you're not familiar with the Boost Converter, we developed the fundamentals of the converter based on the canonical switching cell in: [ Ссылка ]
Outline
0:00 Waveforms and Switching States
4:45 Inductor Current Ripple
8:50 Capacitor Voltage Ripple
13:48 Update: Capacitor ripple should have T^2 in the numerator (or f^2 in the denominator)
14:57 Conduction Modes of the Converter
17:00 Boundary Current for CCM/DCM
24:20 DCM Waveforms and Duty Ratio in DCM
