VIN -48V L1 Q1ON Q2OFF Q2 Q1 Q1OFF Q2ON C1 RL + V-OUT IL1 Q1 Ton Q2 Toff Figure 4 Inverted buck-boost converter In steady-state, the volt-second of the inductor is balanced and we have the buck-boost equation: × = × × = × (1 ...
two stage convertercoupled inductorripple currentThis paper presents a boost-buck two stage converter with coupled inductor for portable electronic devices. This two stage converter consists of a boost converter in the first stage and a buck converter in the second stage, converter. The current ...
The two-switch buck-boost converters are evaluated and compared in terms of component stresses in universal-input power-factor-corrector applications. Among them, one new two-switch converter is identified that has low inductor conduction losses (50% of the boost converter), low inductor volt-...
The Power Loss Optimization of a Current Fed ZVS Two-Inductor Boost Converter With a Resonant Transition Gate Drive This paper develops a power loss optimization method in a current fed zero-voltage switching (ZVS) two-inductor boost converter, which is suitable for the ... Q Li,Wolfs, P -...
Figure 1. Buck-boost and buck converters occupy less than 0.5in2 of board space. The LTC3521's wide input voltage range allows its buck-boost converter to operate from 1.8V to 5.5V. Its propri- etary buck-boost switching algorithm makes it possible to produce seamless transitions between ...
United States Patent US6239584 Note: If you have problems viewing the PDF, please make sure you have the latest version ofAdobe Acrobat. Back to full text
I. Hwu and Y. T. Yau in the field of non- isolated DC-DC boost converter. This converter produces low output voltage ripple than the conventional converters. In this article an Neuro Fuzzy controller is designed for controlling the converter to yield very low output voltage ripple with fast...
Power management integrated circuits (power management ICs or PMICs) are used for managing the power requirement of a host system and may include and/or control one or more voltage regulators (e.g., buck converters and/or LDOs). A PMIC may be used in battery-operated devices, such as mob...
Current mode buck-boost DC-DC controller A current mode DC-DC controller operates with high efficiency even when the input and output voltages are close. Switches selectively connecting an input, ground and an output to inductor terminals are controlled in a buck/boost region t... Hai Bo Zhang...
and it also has the capability to operate over a very wide input voltage range. Even though this converter operates as a continuous conduction mode boost converter, the converter of the present invention has buck converter control characteristics, and as a result does not have a right half plane...