Nowadays, topologies that requiring PWM phasing-shifting and frequency-changing have been widely used in digital power applications. Complicated topologies like multi-phase interleaved LLC have been introduced as the result of demand for higher efficiency and higher power level. To handle the challenge, Type-4 PWM is introduced on TI generation 3 C2000 devices. Especially, new features like global load and one shot reload would significantly simplify implementation phase-shifting and frequency changing topology. This application note discusses the benefit of these new features, and how to deal with corner cases in real practice.