Analysis of Unidirectional Secondary Resonant Single Active Bridge DC–DC Converter

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An introduction to LLC resonant half-bridge converter

Although in existence for many years, only recently has the LLC resonant converter, in particular in its half-bridge implementation, gained in the popularity it certainly deserves. In many applications, such as flat panel TVs, 85+ ATX PCs or small form factor PCs, where the requirements on efficiency and power density of their SMPS are getting tougher and tougher, the LLC resonant half-bridge w...

Digital Control of Secondary Active Clamp Phase-shifted Full-bridge Converter

A DSP-based self-adaptive proportional-integral (PI) controller to control a DC-DC converter is proposed in this paper. Full-bridge topology is adopted here to obtain higher power output capability and higher conversion efficiency. The converter adopts zero-voltage-switching (ZVS) technique to reduce conduction losses. A parallel secondary active clamp circuit is added to deal with voltage over...

Single-Capacitor Phase-Controlled Series Resonant Converter

A new phase-controlled series resonant dddc converter is described, analyzed, and experimentally verified. The circuit comprises a phase-controlled inverter and a Class D current-driven rectifier. The phase-controlled inverter consists of two switching legs, two resonant inductors, and a single resonant capacitor connected in series with an ac load. The phase shift between the voltages that dri...

A Cost-Effective Design and Analysis of Full Bridge LLC Resonant Converter

LLC (Inductor-inductor-capacitor) resonant converter has lots of advantages over other type of resonant converters which include high efficiency, more reliable and have high power density. This paper presents the design and analysis of a full bridge LLC resonant converter. In addition to the operational principle, the ZVS and ZCS conditions are also explained with the DC characteristics. Simula...