電壓突升和突降的快速檢測器及方法
A method for detecting sudden-up and sudden-down of voltage includes generating reference sine signal with the same phase and fixed amplitude as voltage signal of power supply, rectifying power supply voltage signal and reference sine signal then comparing rectified power supply voltage signal with rectified reference sine signal for obtaining detection result to present whether voltage is sudden-up or sudden-down.
Inventor: CHEN, Ming-li | WANG, Huai-bin
Priority Number: CN101324674B
IPC Current: G01W000116
Assignee Applicant: The Hong Kong University of Science & Technology
Title: Electric field instrument and electric field measurement method | Electrograph and electric field measurement method
Usefulness: Electric field instrument and electric field measurement method | Electrograph and electric field measurement method
Novelty: Electrograph, has detector for obtaining set of electric field signals, and two groups of stator plates in detector respectively connected to two operational amplifiers to form different module stream-input circuit
电子
半导体
TSANG Kai-ming
CHAN Wai-lok
中国内地
