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This paper describes the principles and characteristics of a novel ac-link bidirectional DC-DC converter with synchronous rectifier, which has a mechanism formed from two bridge-type DC converters that are linked through superposition in additive polarity in series. For an isolated dual active bridge DC-DC converter, which has been studied for many years, the rated voltage of its switching elements...
Recently, it is required that the high efficiency and small size DC-AC inverter and DC-DC converter are developed for the applications such as solar cells, fuel cells and secondary batteries in the telecommunications, home electronics, industries, electric cars and so forth. A novel bidirectional DC-DC converter is proposed and developed, which realizes the small size and high efficiency 98% is achieved...
We developed an ON/OFF pulse modulator IC using 0.1-mum-gate-length InP HEMTs for ultra-wideband impulse radio (UWB-IR) communications systems. The IC generated extremely short pulses whose full width at half maximum (FWHM) were 6.5 ps. Furthermore, our new circuit architecture that retimes output pulses at both rising and falling edges made the IC robust against timing fluctuations or jitter. The...
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