Synchronous Buck DC-DC Converter Simulator

Switched-mode step-down DC-DC power supply with PWM duty modulation, inductor current triangular ripple (CCM/DCM), and output ripple filtering.

Instrument State:Live Analytical DSP Engine

Switched-Mode Power Supply (SMPS)

PWM duty modulation, continuous conduction mode (CCM), and inductor triangular ripple.

Continuous Mode (CCM)

Live Waveforms: SW Node Vsw (Top) & Inductor Current iL (Bottom)100 kHz Switching

Duty Cycle (D)41.7%D = V_out / V_in

Inductor Ripple (ΔI_L)0.62 A(Vin - Vout)·D / (L·fsw)

V_out Ripple (ΔV)7.8 mVΔIL / (8·C·fsw)

Efficiency Est. (η)91.7%P_out / (P_out + Losses)

Input Voltage (V_in):12 V

Target Output (V_out):5 V

Inductance (L):47 µH

Output Cap (C_out):100 µF

Switching Freq (f_sw):100 kHz

Load Current (I_load):1.5 A

Duty CycleD = Vout / Vin

Inductor RippleΔIL = (Vin - Vout) · D / (L · fsw)

Operating ModesCCM (Continuous) & DCM (Discontinuous)

Switching Freq50 kHz – 500 kHz

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