Design and simulation of a three-phase generator for use with smart systems in medical microinstrumentation

In this paper, we report on the design of a digital three-phase micro-generator of voltage that is going to be part of a lab-on-chip system based on smart sensors for medical diagnosis and instrumentation. The digital generator is implemented on a field-programmable gate array (FPGA) and it will deliver three voltage waveforms with equal magnitudes and phase shifted 120° one of each other. The benefits of this power source are mainly related to the ability of balanced three phase systems to deliver constant instantaneous power to the loads, thus eliminating vibrations and other disturbances produced by oscillation in the output waveforms of typical mono phase systems. It is expected that the resulting three phase digital generator will serve as a very reliable power source for driving micromechanical actuators used in sophisticated medical applications.

[1]  Wei Wang,et al.  A new type of low power thermoelectric micro-generator fabricated by nanowire array thermoelectric material , 2005 .

[2]  Y. Lembeye,et al.  Autonomous, Low Voltage, High Efficiency, CMOS Rectifier for Three-Phase Micro Generators , 2007, TRANSDUCERS 2007 - 2007 International Solid-State Sensors, Actuators and Microsystems Conference.

[3]  M.H. Zarifi,et al.  FPGA implementation of a fully digital demodulation technique for biomedical application , 2008, 2008 Canadian Conference on Electrical and Computer Engineering.

[4]  W. L. Lu,et al.  Modeling of electromagnetic power output in a vibration-induced micro-generator with a silicon-based helical micro-spring , 2011, Microelectron. J..

[5]  Yang Yuan,et al.  The application of a novel direct digital frequency synthesizer for the IP core design of all digital three phase SPWM generator , 2004, The 4th International Power Electronics and Motion Control Conference, 2004. IPEMC 2004..

[6]  Cheng-Tang Pan,et al.  Application of low temperature co-fire ceramics on in-plane micro-generator , 2008 .

[7]  Jiann-Jong Chen,et al.  Feedforward simple control technique for on-chip all-digital three-phase AC/DC power-MOSFET converter with least components , 2009, IET Circuits Devices Syst..

[8]  Junseok Ko,et al.  Micro flywheel energy storage system with axial flux machine , 2007, 2007 IEEE/ASME international conference on advanced intelligent mechatronics.

[9]  E. Thomsen,et al.  High-performance piezoelectric thick film based energy harvesting micro-generators for MEMS , 2010 .

[10]  Bongkyun Jang,et al.  Optimal design for micro-thermoelectric generators using finite element analysis , 2011 .

[11]  Hynek Raisigel,et al.  Permanent magnet planar micro-generators , 2006 .

[12]  Haluk Kulah,et al.  A Multi-source Micro Power Generator Employing Thermal and Vibration Energy Harvesting , 2010 .

[13]  Wenming Yang,et al.  Development of micro power generators – A review , 2011 .

[15]  Dibin Zhu,et al.  Design and experimental characterization of a tunable vibration-based electromagnetic micro-generator , 2010 .