Analog
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Low-noise signal acquisition, filtering and processing. Wideband voltage and transimpedance amplifiers. A/D conversion.
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Digital
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FPGA & CPLD logic design in Verilog and VHDL; Microcontrollers. DSP and image processing.
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Power
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Power supplies: high-efficiency, high-voltage. Power management: switching, sequencing. Power amplifiers: voltage or current output. Motor drives: DC, stepper, brushless DC, Permanent Magnet Synchronous Machine (PMSM).
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Sensors
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Temperature, pressure, inertial, strain, encoders, radiation, light, etc.
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RF
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Bluetooth,WiFi,Zigbee. RF Sensors: NMR, MRI.
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Tools
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Schematic capture: Altium, Orcad. Layout: Altium, Allegro, PADS. EDA simulation: High-speed analog, microwave/millimeter-wave, antenna, HFSS, CST, ADS, Microwave Office, LTSpice, Tina Spice, Intusoft, Pspice. Digital simulation: ModelSim, Xilinx tool suite
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Other
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PCB layout, board packaging, thermal design. Design to meet safety (60601-1), emissions & susceptibility standards (EMI/ESD,60601-1-2).
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Approach
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Informed design, Requirements analysis, Architectural trade-offs, Design reviews. Design re-use (libraries of proven designs): Circuit & Verilog topologies.
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