• RF Integrated Circuit
• + Ultra-low power transceiver and wake-up radio system research for IoT devices
• Analog Integrated Circuit
• + Development of power converter system for mobile systems
• + Flexible Thermoelectric Device Technology Center
• + Accelerator Pedal Sensor IC
• Terahertz circuit
• + Study on CMOS Based THz RF Integration Technology
• Smart Battery Management
• + Battery project

Accelerator Pedal Sensor IC

• Project name
•   Accelerator Pedal Sensor IC


• Project objective
•   The objective of this project is to develop the electronic sensor module to detect angle variation. The angle variation sensor can be used in accelerator position sensing application.
• 
•   A conventional pedal is operated in mechanical method, which generally has mechanical contact(s) inducing wear out as the time goes by. This could cause problems of reliability and/or durability. Thus, electronic pedal is replacing mechanical pedal to eliminate those problem. Designing a highly reliable electronic Accelerator Pedal Sensor (APS) is one of the most important parts in engine control system.
  



• Project main contents
•   - Ratio-metric signal processing algorithm
•   - Phase detection technique
•   - Aging effect compensation algorithm
•   - Reverse battery, ground open, and over voltage protection
•   - -40 to 125 Celsius degree automotive temperature range


• Project goals
•   


• Technical Breakthrough
•   – PCB wire design whose coupling strength has a function of the rotation
•   – Generation of excitation signal independent on circumstances in vicinity
•   – Phase detection technique
•   – Compensation for aging effect


• Project result
• 
•   Waveform according to angle variation.
•   - As angle increases, phase difference with respect to reference signal changes. Picking up the phase difference is to drive output.


• Project term
•   2015.05 ~ 2017.02


• Project sponsor
•   SiliconWorks Co. ltd