*5.1. Experiment Setup*

The experimental setup for testing the proposed configuration is illustrated in the circuit diagram (Figure 14). To validate the proposed converter, a low voltage–low power prototype (Figure 15) was constructed using the available equipment in the laboratory. The input voltage was set to 12 V by a standalone battery, and low-power inductors with an approximate value of 1.2 mH were selected. The load resistance was set to 100 Ω, resulting in an output voltage of −18 V and a converter power of 3.24 W. The available IRF540N MOSFET was utilized as the switch, controlled by an N-type transistor 2N3904 through an Arduino-based chip, allowing for adjustment of the duty cycle and switching frequency. Prior to conducting the measurements, the proposed converter was re-simulated using MATLAB/ Simulink with the parameters provided in Table 4.

**Figure 14.** Circuit diagram of the experimental setup (new configuration proposed).

**Figure 15.** The 3.24 W/−18 V converter prototype.


**Table 4.** Selected parameters of the prototype.
