A higher-power boost converter often requires special consideration to minimize power losses and temperature rise in the FETs, diode, and inductor. Regarding FETs, many designers opt to place FETs in parallel to reduce conduction losses. This is a design circuit for the converters. This is the figure of the circuit;
The boost converter supplies a voltage that is always greater than its source voltage. The volt-second balance of the inductor L, for the D period, is added to the input voltage during the (1-D) period and is rectified to the output through the diode. The longer the D period, the shorter the 1-D period becomes, thereby increasing the voltage during the off time in order to maintain volt-second balance.
Circuit source: National Semiconductor Notes
The boost converter supplies a voltage that is always greater than its source voltage. The volt-second balance of the inductor L, for the D period, is added to the input voltage during the (1-D) period and is rectified to the output through the diode. The longer the D period, the shorter the 1-D period becomes, thereby increasing the voltage during the off time in order to maintain volt-second balance.
Circuit source: National Semiconductor Notes
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