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1. (WO2017032168) PROTECTION CIRCUIT FOR INTERFACE WITH OSCILLATION CHARACTERISTIC AND METHOD THEREOF

Pub. No.:    WO/2017/032168    International Application No.:    PCT/CN2016/087297
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Tue Jun 28 01:59:59 CEST 2016
IPC: H02H 9/04
Applicants: ZTE CORPORATION
中兴通讯股份有限公司
Inventors: TANG, Rongdao
唐荣道
WANG, Xin
王新
Title: PROTECTION CIRCUIT FOR INTERFACE WITH OSCILLATION CHARACTERISTIC AND METHOD THEREOF
Abstract:
A protection circuit for an interface with oscillation LC characteristic and a method thereof. The protection circuit includes a first overvoltage protection unit (1) connected in parallel with a capacitor (C2) on the interface circuit. The first overvoltage protection unit (1) releases the energy on the capacitor (C2) when the interference is generated by lightning surge, power line overlap and contact; the first overvoltage protection unit (1) includes one or more overvoltage protector (TSS). The protection circuit and the method thereof can quickly release the energy of the LC loop when the interference is generated by lightning surge, power line overlap and contact and the like, suppress or reduce the generation of the LC resonance energy, and solve the disadvantages of wide band signal attenuation and distortion when the junction capacitance of the protective device is large at the same time.