Low-Power Control and Signal Processing Asic for Vibratory Rate Gyroscopes
The new UC technology provides the following benefits: Fully-integrated digital processing; A flexible interface to commercial analog-to-digital (A/D) and digital-to-analog (D/A) converters; High data precision for low distortion; Low-power, small-area implementation.
This new UC invention can be used in several power-sensitive applications, such as: Aeronautics; Spacecraft; Satellite systems.
Scientists at the University of California, in collaboration with scientists from Jet Propulsion Laboratory and Boeing, have developed a novel single digital chip solution for current and future vibratory rate gyroscopes, including MEMS gyroscopes. This new digital, application- specific integrated circuit (ASIC) features a flexible architecture to facilitate customization to individual sensor dynamics, as well as a low-power design.
Patent Number: US6915215B2
Application Number: US2003603557A
Inventor: M'Closkey, Robert | Challoner, A. Dorian | Grayver, Eugene | Hayworth, Ken J.
Priority Date: 25 Jun 2002
Priority Number: US6915215B2
Application Date: 25 Jun 2003
Publication Date: 5 Jul 2005
IPC Current: G01C001956
US Class: 702032 | 07350412
Assignee Applicant: The Boeing Company,Chicago | California Institute of Technology,Pasadena | The Regents of the University of California
Title: Integrated low power digital gyro control electronics
Usefulness: Integrated low power digital gyro control electronics
Summary: Used for a vibratory gyroscope.
Novelty: Distributed digital control circuit device for vibratory gyroscope, has digital demodulator demodulating sense rebalance signal with drive mode response signal to produce digital rate estimate of vibratory gyroscope
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6915215
BACKGROUND Additional Technologies by these Inventors Tech ID/UC Case 10260/2002-493-0 Related Cases 2002-493-0
Current gyroscope feedback control and signal processing elements take the form of a discrete analog implementation and/or a general purpose digital signal processing (DSP) chip. However, both of these methods present drawbacks. The discrete analog option is inflexible with regard to modifying component values for the purpose of "tuning" or customizing the control loops for a given sensor. The chip's disadvantage is that general purpose DSPs do not lend themselves to applications that require low power consumption, such as in spacecraft and mobile systems.
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