| Abstrakt: |
Breakdown voltage happens when an electrically insulating material, exposed to a sufficiently high voltage, then instantly becomes an electrical conductor, and flows through it with electrical current. However, a high breakdown voltage would give a low-power efficiency which is bad for Switched Mode Power Supply (SMPS) devices. Also, it would lead to low efficiency. Therefore, a low efficiency leads to a bad system’s performance, and the switching characteristics would also decrease. This in return, cannot be applied to power electronics such as switching devices. Therefore, this work focused on decreasing the breakdown voltage in a DC-DC converter for a step-down chopper circuit or buck converter. The simulation of the circuit is done by using the LTSpice software. The parameters varied are the input voltage, capacitor, and duty cycle. The input voltage supplied to the circuit is 12V and the output voltage obtained is half of the input voltage at the steady-state response. Where this proves the decrement of the breakdown voltage in the chopper circuit. |
