PPT-A NOVEL CONTROL METHOD OF DC-DC CONVERTERS

DrMNandakumar Professor Department of Electrical engineering Govt Engineering College Thrissur 1 Dept of EEE GEC Thrissur O utline Introduction DCDC converter topologies Buck converter. 114 AD Converters ADCs perform two basic fundamental operations discretiza tion in time and discretization in amplitude e two functions are shown con ceptually in Figure 1 though the actual ADCmay not be structure as such 1 e rst operation of the A new family of complementary MOS multiplying digitaltoanalog converters has arrived on the scene and promises to make microprocessor interfacing truly universal The doublebuffered MICRODAC units eliminate many common problems bridging the way to a Most Interpoint power converters have partial input line filters consisting of a single inductorcapacitor LC section which reduce the differential spectral noise components to about 30 mA pp This is adequate for many applications However where lower Converters. Markus Friedl (HEPHY Vienna). B2GM, 14 March 2012. What’s It All About?. We need to bring power to the front-end. There is a significant power drop in the cables. Limited space and material budget. Data Converter . Design 2. Introduction. 1. Data Converters. Signal. Conditioning. ADC. MCU. DAC. Post. Processing. -Amplification. -Anti-aliasing. . filter. ex. Smoothing filter. Analog-to-Digital Converters . Advanced Embedded Systems. Lecture . 9. :. Batteries and DC converters. Continuing with power issues. Review. Basic power issues. Power Integrity. Discuss. Battery selection. DC converter options. Today…. To investigate the application of advanced manufacturing techniques to the fabrication and automated assembly of highly integrated power converters.. Dr Xi Lin. PEMC Research Group, University of Nottingham. To investigate the application of advanced manufacturing techniques to the fabrication and automated assembly of highly integrated power converters.. Dr Xi Lin. PEMC Research Group, University of Nottingham. Subranging. ADCs Professor Y. Chiu. EECT 7327 . Fall 2014. Subranging. ADC. Subranging. ADC Architecture. – . 2. –. Data Converters . Subranging. ADCs Professor Y. Chiu. EECT 7327 . Fall 2014. EECT 7327 . Fall 2014. DAC Architecture. DAC Architecture. – . 2. –. Data Converters DAC Professor Y. Chiu. EECT 7327 . Fall 2014. Nyquist DAC architectures. Binary-weighted DAC. Unit-element (thermometer-coded) DAC. EECT 7327 . Fall 2014. Algorithmic . (Cyclic) ADC. Algorithmic (Cyclic) ADC. – . 2. –. Data Converters Algorithmic ADC Professor Y. Chiu. EECT 7327 . Fall 2014. Input is sampled first, then circulates in the loop for N clock cycles. EECT 7327 Fall 2014. Sample-and-Hold (S/H) Basics. ZOH vs. Track-and-Hold (T/H). – . 2. –. Data Converters Sample-and-Hold Professor Y. Chiu. EECT 7327 Fall 2014. Zero acquisition time. Infinite bandwidth. EECT 7327 . Fall 2014. Pipelined ADC. Pipelined ADC Architecture. – . 2. –. Data Converters Pipelined ADCs Professor Y. Chiu. EECT 7327 . Fall 2014. A bucket brigade of algorithmic ADC w/ concurrent operation of all stages. EECT 7327 . Fall 2014. CMOS Comparator. Comparator. – . 2. –. Data Converters Comparator Professor Y. Chiu. EECT 7327 . Fall 2014. Transfer characteristic. (ideal). Circuit symbol. Detects the polarity of the analog input signal and produces a digital output (1 or 0) accordingly – threshold-crossing detector.