What happens if the freewheeling diode is removed in a conventional buck converter?

Question

Accepted Answer

Removing the freewheeling diode in a conventional buck converter can lead to reverse voltage spikes, damaging the circuit.

The freewheeling diode provides a path for the inductor current when the switch is turned off.
Without the diode, the inductor current has nowhere to go, causing a reverse voltage spike.
This spike can damage the switch and other components in the circuit.
The diode also helps to maintain a continuous current flow, improving efficiency and reducing ripple.
Removing the diode can result in increased ripple and decreased efficiency.

Accepted Answer

When the switch is off, a high voltage will be induced across the inductor due sudden decrement in load current. This voltage will appear across the switch then the switch may damage.

What happens if the freewheeling diode is removed in a conventional buck converter?

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