Design a 12 V to 24 V DC-DC switching boost converter

Abstract

The switching power supply market is flourishing quickly in today’s high-tech world. Design engineer are not supplied with the desired amount of voltage they need in order to make their design work. Adding an additional voltage supply to design is not always cost efficient. A boost converter or known as step-up converter is a power converter with an output DC voltage greater than its input DC voltage. This purpose of this project is to present the design and analysis boosting DC voltage from 12 V to 24 V by using a MOSFET and LM555 integrated circuit design specifically for this task. The PSIM, MATHCAD or equivalent software are used to simulate the ideal boost converter. While for non-idealities boost converter circuit was simulate by MULTISIM to make sure the circuit is function. Continued to the simulation, a hardware prototype of a boost converter was constructed, tested, and the result and analyzed. The hardware experiments shown the output voltage was 21.95 V and 70% efficiency for the 110 Ω load, due to 46% duty cycle.