Application of PWM in Bidirectional DC-DC Converters

With continuous technological advancements, PWM applications in bidirectional DC-DC converters have become increasingly widespread. Beyond elevator energy recovery systems and electric vehicle power management, these applications extend to solar photovoltaic systems, UPS power supplies, wind energy conversion systems, and power electronic converters. PWM technology enables high-efficiency power conversion through precise switching frequency control (typically implemented using microcontroller timer peripherals), while providing regulated output current and voltage parameters via feedback control algorithms. This enhances power system stability and reliability. Furthermore, PWM techniques effectively reduce electronic device acoustic noise and electromagnetic interference through optimized switching patterns and filter design, improving equipment performance and lifespan. Consequently, PWM has gained extensive adoption in electronics manufacturing, communication systems, and instrumentation industries, often implemented using dedicated PWM controller ICs or DSP-based digital control schemes.