Panasonic Corporation

Qualtre, Inc.

Akhil K Garlapati

Ronald Joseph Lipka

Saroj Rout

Qicheng Yu

A sense channel signal processing block is time-domain multiplexed among multiple MEMS devices and utilizes an anti-aliasing filter disposed after track-and-hold switches, to prevent the bandwidth of the sense channel from being limited by the anti-aliasing filter. A multiplexed signal processor architecture performs dynamic calibration of all sensor error signals in response to environmental changes.

Method for calibration of a system with time-multiplexed sensors

A quadrature error signal cancellation circuit and technique can detect an undesired quadrature signal component in the output of a MEMS gyroscope and null the quadrature signal component. In one embodiment, the cancellation circuit is configured in a feedback loop with the MEMS gyroscope and includes components to detect and condition the quadrature signal, digitize the conditioned quadrature signal, and generate a quadrature error cancellation signal which is provided back to the MEMS gyroscope.

Method and system for detecting and correcting quadrature error signals for MEMS device

A sense channel signal processing block is time-domain multiplexed among multiple MEMS devices and utilizes an anti-aliasing filter disposed after track-and-hold switches, to prevent the bandwidth of the sense channel from being limited by the anti-aliasing filter.

Time-domain multiplexed signal processing block and method for use with multiple MEMS devices

An charge pump architecture capable of generating ultra high DC voltages but implemented in low voltage CMOS technology uses a cascade of NMOS stages with the bulk terminal of the latter stages biased to a voltage just below the reverse breakdown of the parasitic bulk diode. The bias voltage is tapped from a lower voltage point within the charge pump. The upper limit of the output voltage is then increased to the maximum allowable oxide voltage plus the parasitic diode reverse bias breakdown voltage.

Ultrahigh voltage charge pump apparatus implemented with low voltage technology

The present disclosure provides a varying high voltage source implemented with low voltage domain electronic components that are less costly to manufacture. According to one aspect, the present disclosure provides a high voltage circuit apparatus comprising a pull up resistance module, a plurality of cascode cell stages, a first of the cascode cell stages being coupled to the pull up resistance module, a low voltage domain current sink module coupled to a last of the cascode cell stages, and a clamping voltage source coupled to the last of the cascode cell stages. The circuit apparatus is devoid of high-voltage transistor components.

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Lexington, MA, United States of America

Akhil K Garlapati