Title: Precision isolated amplifier
Application Number: 200610031321 Application Date: 2006.03.09
Publication Number: 1811488 Publication Date: 2006.08.02
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01V3/08,G01V3/00
Applicant(s) Name: Zhongnan Univ. Address: 410083
Inventor(s) Name: Chen Rujun, Yan Liang, He Jishan
Attorney & Agent: ning xingyao ning gang
Abstract:
     The present invention discloses a precision isolated amplifier, it includes gain control circuit formed from key switch, anti-static flutter-removing circuit, circulation control state generation circuit and switching circuit which are successively connected; preamplifcation and filter circuit composed of input protection circuit, buffer circuit and at least two-stage amplification and filter circuit which are successively connected; and isolated amplification and output filter circuit formed from output filter and buffer circuit and isolated amplifier circuit which are connected. The switching circuit is respectively connected with every-stage amplification and filter circuit, the input end of the final-stage amplification and filter circuit is respectively connected with isolated amplifier circuit and over voltage detection indication circuit.
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