I. Introduction
Rapid industrialization and population growth have led to an exorbitant use of conventional energy sources. Conventional energy sources (fossil fuels) such as petrol, diesel, and coal spew large amounts of greenhouse gases into the environment, which are highly detrimental to life on Earth. Internal combustion (IC) engine-based vehicles are among the major consumers of fossil fuels and are responsible for causing significant environmental pollution. Due to rapid depletion of fossil fuels and growing awareness about environmental pollution issues, electric vehicles (EVs) are gradually gaining popularity. An EV uses pollution-free battery power (or power from fuel cell stack, etc.) to produce clean energy to power the vehicle [1]. According to standard SAE J1772 [2], there are two types of battery chargers for EVs: a) off-board (stand-alone) chargers and b) onboard (integrated) chargers. In off-board battery chargers, the charger is mounted on the charging station and they do not have constraint of size and weight. The onboard battery chargers are more popular because they are mountable on the EV; thus, EV can be charged anywhere [2]– [4]. Typical characteristics desired of the onboard battery charger are light weight, high energy density, and capability of delivering high power with high efficiency to maximize the output and distance covered per charging [5], [6].