This invention pertains to control methods and systems designed to reduce the startup time of gyroscopes, specifically MEMS gyroscopes, used in various electronic and mechanical devices. Traditional gyroscopes, which rely on Automatic Gain Control (AGC) and Phase-Locked Loop (PLL) circuits, suffer from relatively long startup times, delaying the measurement of angular rates and increasing energy consumption. This invention introduces a pulse controller that works in conjunction with the AGC and PLL circuits to accelerate the startup process. The pulse controller emits a signal that, when combined with the input control drive signal, quickly excites the proof mass of the gyroscope, enabling it to reach its steady-state oscillation frequency and amplitude in a shorter time. This method prevents overshooting of the oscillation amplitude, ensuring the gyroscope operates efficiently and safely. The reduced startup time promotes energy efficiency and enhances the performance of devices that require rapid and accurate angular rate measurements, such as smartphones, aircraft, and vehicles. The proposed solution is easily integrable with existing gyroscope control systems, offering a cost-effective and flexible enhancement to current technology.
Gyroscopes, particularly MEMS gyroscopes, have a relatively long startup time from a point of rest to reach steady-state operation. This delay can negatively impact devices requiring instant angular rate measurements and can lead to significant energy consumption.
- Reduced Startup Time: The integration of a pulse controller significantly reduces the time required for the gyroscope to reach its steady-state operation.
- Compatibility: The method can be easily implemented alongside existing AGC and PLL circuits without extensive modifications.
- Avoidance of Overshoot: Proper voltage control ensures the oscillation amplitude does not exceed desired levels, preventing potential damage.
- Energy Efficiency: Faster startup times lead to lower energy consumption, as gyroscopes spend less time in high-power states.
- Flexibility: The solution is applicable to both MEMS and mechanical gyroscopes.
- MEMS Gyroscope: 10 Hz to 1 kHz
- AGC (Automatic Gain Control) Circuit: Gain range 0.1 - 100
- PLL (Phase-Locked Loop) Circuit: Lock range 10 Hz - 1 kHz
- AGC Signal (Vi): 0.1V - 3.3V
- PLL Signal (Ω): 10 Hz - 1 kHz
Demonstration and validation in lab environment.
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Reducing the startup time of gyroscopes improves the performance of various electronic devices and mechanical systems that rely on accurate and rapid angular rate measurements. This can lead to better user experiences and energy efficiency in consumer electronics and advanced navigational systems.
Consumer Electronics (smartphones, tablets, smartwatches), Aerospace (aircrafts, satellites), Maritime (ships), Automotive (vehicle navigation systems).
Geography of IP
Type of IP
202221008504
409434