The Experts below are selected from a list of 111 Experts worldwide ranked by ideXlab platform

Yao Cheng - One of the best experts on this subject based on the ideXlab platform.

  • Integrated capacitive-sensor interface based on a multi-slope modulator
    2013 IEEE International Conference on Industrial Technology (ICIT), 2013
    Co-Authors: Stoyan Nihtianov, Yao Cheng
    Abstract:

    This paper presents an energy-efficient capacitive sensor interface based on a multi-slope analog-to-digital converter (ADC). The interface utilizes Precision Resistor and time as references. By using a multi-slope analog-to-digital converter, the conversion time of this multi-slope modulator is reduced down to 50us. The counter works as a sinc filter to reduce the noise, which helps to achieve a resolution of 14.5 bits for 250 Hz signal bandwidth.

  • Energy-Efficient Capacitive-Sensor Interface Based on A Multi-Slope ADC
    2012
    Co-Authors: Yao Cheng
    Abstract:

    This thesis presents an energy-efficient capacitive sensor interface based on a multi-slope analog-to-digital converter (ADC). This highly stable capacitance-to-digital converter (CDC) utilizes Precision Resistor as reference components. By utilizing a multi-slope analog-to-digital converter, the conversion time of this design is reduced down to 50us. The counter works as a sinc filter to reduce the noise, which helps to achieve a resolution of 15 bits with a 0.2W power consumption.

Seth R. Sanders - One of the best experts on this subject based on the ideXlab platform.

  • High Precision Load Current Sensing Using On-Line Calibration of Trace Resistance
    IEEE Transactions on Power Electronics, 2008
    Co-Authors: Gabriel Eirea, Seth R. Sanders
    Abstract:

    A method for the on-line calibration of a circuit board trace resistance at the output of a buck converter is described. The input current is measured with a Precision Resistor and processed to obtain a dc reference for the output current. The voltage drop across a trace resistance at the output is amplified with a gain that is adaptively adjusted to match the dc reference. This method is applied to obtain an accurate and high-bandwidth measurement of the load current in the modern microprocessor voltage regulator application (VRM), thus enabling an accurate dc load-line regulation as well as a fast transient response. Experimental results show an accuracy well within the tolerance band of this application, and exceeding all other popular methods.

  • High Precision Load Current Sensing using On-Line Calibration of Trace Resistance in VRM Applications
    37th IEEE Power Electronics Specialists Conference, 2006
    Co-Authors: Gabriel Eirea, Seth R. Sanders
    Abstract:

    A method for the on-line calibration of a circuit board trace resistance at the output of a buck converter is described. The input current is measured with a Precision Resistor and processed to obtain a DC reference for the output current. The voltage drop across a trace resistance at the output is amplified with a gain that is adaptively adjusted to match the DC reference. This method is applied to obtain an accurate and high-bandwidth measurement of the load current in the modern microprocessor voltage regulator application (VRM), thus enabling an accurate DC load-line regulation as well as a fast transient response. Experimental results show an accuracy well within the tolerance band of this application, and exceeding all other popular methods.

Stoyan Nihtianov - One of the best experts on this subject based on the ideXlab platform.

  • Integrated capacitive-sensor interface based on a multi-slope modulator
    2013 IEEE International Conference on Industrial Technology (ICIT), 2013
    Co-Authors: Stoyan Nihtianov, Yao Cheng
    Abstract:

    This paper presents an energy-efficient capacitive sensor interface based on a multi-slope analog-to-digital converter (ADC). The interface utilizes Precision Resistor and time as references. By using a multi-slope analog-to-digital converter, the conversion time of this multi-slope modulator is reduced down to 50us. The counter works as a sinc filter to reduce the noise, which helps to achieve a resolution of 14.5 bits for 250 Hz signal bandwidth.

C Erdmann - One of the best experts on this subject based on the ideXlab platform.

  • design and characterisation of a high Precision Resistor ladder test structure
    International Conference on Microelectronic Test Structures, 2002
    Co-Authors: H P Tuinhout, Gian Hoogzaad, M Vertregt, R L J Roovers, C Erdmann
    Abstract:

    A new subsite stepped multiResistor test structure is introduced. This test structure is used for studying and improving small resistance mismatch patterns in Resistor ladders for high-resolution analog-to-digital converter applications. By utilizing wafer prober subsite movements and contact pad cross connections in the test structures, in combination with a Kelvin measurement method and dedicated statistical data evaluation technique, this approach enables identification of very small (<0.05%) systematic resistance mismatch patterns in realistic high- Precision Resistor ladder implementation. The most disturbing mismatch pattern was found to be caused by mechanical stress from the Resistor ladder head layout, while others are attributed to decananometer scale reticle writing artefacts.

  • Design and characterisation of a high Precision Resistor ladder test structure
    IEEE Transactions on Semiconductor Manufacturing, 2002
    Co-Authors: H P Tuinhout, Gian Hoogzaad, M Vertregt, R L J Roovers, C Erdmann
    Abstract:

    A new subsite stepped multiResistor test structure is introduced. This test structure is used for studying and improving small resistance mismatch patterns in Resistor ladders for high-resolution analog-to-digital converter applications. By utilizing wafer prober subsite movements and contact pad cross connections in the test structures, in combination with a Kelvin measurement method and dedicated statistical data evaluation technique, this approach enables identification of very small (

Gabriel Eirea - One of the best experts on this subject based on the ideXlab platform.

  • High Precision Load Current Sensing Using On-Line Calibration of Trace Resistance
    IEEE Transactions on Power Electronics, 2008
    Co-Authors: Gabriel Eirea, Seth R. Sanders
    Abstract:

    A method for the on-line calibration of a circuit board trace resistance at the output of a buck converter is described. The input current is measured with a Precision Resistor and processed to obtain a dc reference for the output current. The voltage drop across a trace resistance at the output is amplified with a gain that is adaptively adjusted to match the dc reference. This method is applied to obtain an accurate and high-bandwidth measurement of the load current in the modern microprocessor voltage regulator application (VRM), thus enabling an accurate dc load-line regulation as well as a fast transient response. Experimental results show an accuracy well within the tolerance band of this application, and exceeding all other popular methods.

  • High Precision Load Current Sensing using On-Line Calibration of Trace Resistance in VRM Applications
    37th IEEE Power Electronics Specialists Conference, 2006
    Co-Authors: Gabriel Eirea, Seth R. Sanders
    Abstract:

    A method for the on-line calibration of a circuit board trace resistance at the output of a buck converter is described. The input current is measured with a Precision Resistor and processed to obtain a DC reference for the output current. The voltage drop across a trace resistance at the output is amplified with a gain that is adaptively adjusted to match the DC reference. This method is applied to obtain an accurate and high-bandwidth measurement of the load current in the modern microprocessor voltage regulator application (VRM), thus enabling an accurate DC load-line regulation as well as a fast transient response. Experimental results show an accuracy well within the tolerance band of this application, and exceeding all other popular methods.