In an example, a gyroscopic driver circuit can be configured to be coupled to a gyroscopic structure which can include a proof mass. The gyroscopic driver circuit can include an in-phase leg, which can be configured to carry the in-phase signal generated in the second primary mode of the gyroscopic…
Navigation systems and methods for autonomous vehicles are provided. The navigation system may include multiple navigation subsystems, including one having an inertial measurement unit (IMU). That unit may serve as the primary unit for navigation purposes, with other navigation subsystems being…
A gyroscope includes a substrate, a proof mass coupled to the substrate and configured to move in direction of an X axis and in direction of a Y axis orthogonal to the first axis, an X axis shuttle to selectively drive the proof mass along the X axis as a drive axis or sense movement of the proof…
According to some aspects, there is provided a microelectromechanical systems (MEMS) device wherein one or more components of the MEMS device exhibit attenuated motion relative to one or more other moving components. The MEMS device may comprise a substrate; a proof mass coupled to the substrate…
According to some aspects, there is provided a microelectromechanical systems (MEMS) device wherein one or more components of the MEMS device exhibit attenuated motion relative to one or more other moving components. The MEMS device may comprise a substrate; a proof mass coupled to the substrate…
Remote keyless entry (RKE) systems and devices are described. The RKE devices include one or more passive radios that respond to an interrogation signal from an interrogating device such as a vehicle. The passive radio sends a responsive signal that can include a decaying portion representing a…
An apparatus comprising a regulator circuit that includes a linear input current regulating circuit configured to regulate input current to the regulator circuit when an output voltage of the regulator circuit is less than an input voltage of the regulator circuit; and a switching regulating…
Techniques, methods, circuits, and systems are provided for providing stabilization for a circuit. One example system includes a switching converter coupled to a power source; a low-pass filter coupled to a load device; a direct current (DC) path; and an alternating current (AC) path, where the DC…
Various examples are directed to a solar power electrolyzer system comprising a first electrolyzer stack, a second electrolyzer stack, a first converter and a first converter controller. The first electrolyzer stack may be electrically coupled in series with a photovoltaic array. The first…
Microelectromechanical system (MEMS) inertial sensors exhibiting reduced parasitic capacitance are described. The reduction in the parasitic capacitance may be achieved by forming localized regions of thick dielectric material. These localized regions may be formed inside trenches. Formation of…
The battery monitoring techniques described herein may be used for detection of battery anomalies or faults. Also, the battery monitoring techniques described herein may be used to generate estimates of total battery capacity. The battery monitoring techniques may employ an alternating current…
The battery monitoring techniques described herein use a self-characterizing wireless monitor coupled to a battery to monitor different properties of the battery. The wireless monitor may measure, among other things, an alternating current frequency response (ACFR) of the battery. To accomplish…
Columnar multi-axis microelectromechanical systems (MEMS) devices (such as gyroscopes) balanced against undesired linear and angular vibration are described herein. In some embodiments, the columnar MEMS device may comprise at least two multiple-mass columns, each having at least three proof masses…
According to some aspects, there is provided a microelectromechanical systems (MEMS) device wherein one or more components of the MEMS device exhibit attenuated motion relative to one or more other moving components. The MEMS device may comprise a substrate; a proof mass coupled to the substrate…
Systems and methods are provided for a distributed mufti-sensor witness integrity sensing platform (WISP) approach which allows for positioning of sensors in an enclosed space. In particular, a WISP platform is divided into two modules, with a base module is connected to multiple edge sensor…
Couplers for selectively coupling in-plane and out-of-plane motion between moving masses are provided herein. In particular, aspects of the present application provide for a coupler configured to couple in-plane motion between moving masses while decoupling out-of-plane motion between the moving…
Columnar multi-axis microelectromechanical systems (MEMS) devices (such as gyroscopes) balanced against undesired linear and angular vibration are described herein. In some embodiments, the columnar MEMS device may comprise at least two multiple-mass columns, each having at least three proof masses…
A MEMS device is provided comprising a substrate; a proof mass coupled to the substrate and configured to move along a resonator axis; a drive structure comprising at least one electrode and configured to drive the proof mass to move along the resonator axis; and a pivoting linkage coupled to the…
A MEMS device is provided comprising a mass configured to move along a first axis and a second axis substantially perpendicular to the first axis; a drive structure coupled to the mass and configured to cause the mass to move along the first axis; a sense structure coupled to the mass and…
Disclosed herein are systems and techniques for audio and lighting control in a bus system. For example, in some embodiments, a bus system may be configured for operation as a light organ and/or to generate sound effects based on accelerometer data.
Microelectromechanical system (MEMS) inertial sensors exhibiting reduced parasitic capacitance are described. The reduction in the parasitic capacitance may be achieved by forming localized regions of thick dielectric material. These localized regions may be formed inside trenches. Formation of…
System and apparatus for carbon dioxide detection within an automobile. Specifically, this disclosure describes apparatuses and systems for optical gas detection in a stationary and moving vehicle. There is a need for a such a system to prevent loss of life and contribute to a safer traffic…
An extensional mode electrostatic microelectromechanical systems (MEMS) gyroscope is described. The MEMS gyroscope operates in an extensional mode. The MEMS gyroscope comprises a vibrating ring structure that is electrostatically excited in the extensional mode.
An integrated circuit has a substrate, a super-capacitor supported by the substrate, and a battery supported by the substrate. The super-capacitor includes a super-capacitor electrode and a shared electrode, and the battery has a battery electrode and the prior noted shared electrode. The…