Human never stop the journey of exploring the ocean.Since the industry revolution,the advanced technology had been used for drilling platform on sea,submarine cable and subsea tunnel.At the same time,the ocean shippin...Human never stop the journey of exploring the ocean.Since the industry revolution,the advanced technology had been used for drilling platform on sea,submarine cable and subsea tunnel.At the same time,the ocean shipping develops fast in order to pursue the cheaper product materials among countries.But the human activities have greatly influenced the ecology and environment of the ocean."Torres Canyon"oil pollution case,Terrell smeltery arbitration case,Dalian new harbor7.16exploding case all greatly damaged the ocean environment.Therefore,through continual exploration,countries have signed a series of international agreement to construct systematic judging and compensating mechanism.展开更多
To achieve fast transient response for a DC-DC buck converter,an adaptive zero compensation circuit is presented.The compensation resistance is dynamically adjusted according to the different output load conditions, a...To achieve fast transient response for a DC-DC buck converter,an adaptive zero compensation circuit is presented.The compensation resistance is dynamically adjusted according to the different output load conditions, and achieves an adequate system phase margin under the different conditions.An improved capacitor multiplier circuit is adopted to realize the minimized compensation capacitance size.In addition,analysis of the small-signal model shows the correctness of the mechanism of the proposed adaptive zero compensation technique.A currentmode DC-DC buck converter with the proposed structure has been implemented in a 0.35μm CMOS process,and the die size is only 800×1040μm;.The experimental results show that the transient undershoot/overshoot voltage and the recovery times do not exceed 40 mV and 30μs for a load current variation from 100 mA to 1 A.展开更多
文摘Human never stop the journey of exploring the ocean.Since the industry revolution,the advanced technology had been used for drilling platform on sea,submarine cable and subsea tunnel.At the same time,the ocean shipping develops fast in order to pursue the cheaper product materials among countries.But the human activities have greatly influenced the ecology and environment of the ocean."Torres Canyon"oil pollution case,Terrell smeltery arbitration case,Dalian new harbor7.16exploding case all greatly damaged the ocean environment.Therefore,through continual exploration,countries have signed a series of international agreement to construct systematic judging and compensating mechanism.
文摘To achieve fast transient response for a DC-DC buck converter,an adaptive zero compensation circuit is presented.The compensation resistance is dynamically adjusted according to the different output load conditions, and achieves an adequate system phase margin under the different conditions.An improved capacitor multiplier circuit is adopted to realize the minimized compensation capacitance size.In addition,analysis of the small-signal model shows the correctness of the mechanism of the proposed adaptive zero compensation technique.A currentmode DC-DC buck converter with the proposed structure has been implemented in a 0.35μm CMOS process,and the die size is only 800×1040μm;.The experimental results show that the transient undershoot/overshoot voltage and the recovery times do not exceed 40 mV and 30μs for a load current variation from 100 mA to 1 A.
