Jonathan Ryan Wilkerson,Iyam Lynch,Jeffrey Parrott,Charles Eric Hunter
申请号：
US16434428
公开号：
US20200094285A1
申请日:
2019.06.07
申请国别(地区):
US
年份:
2020
代理人:
摘要：
In a piezoelectric ejector assembly, a piezoelectric actuator is attached to an ejector mechanism, while a drive signal generator and a controller are coupled to the actuator. The drive signal generator is configured to generate a drive signal for driving the actuator to oscillate the ejector assembly. The controller is configured to control the drive signal generator to drive the actuator at a resonant frequency of the ejector assembly, and an auto-tuning circuit is provided to define the optimum drive signal frequency.
