The utility model discloses amplifier circuit with filter, belonging to the field of the circuit, the utility model comprises a common source - JFET source circuit is the first level and BJT current follower as second common base circuits, wherein the JFET is connected with a filter circuit. Through the arrangement, the utility model overcomes the defects of the amplified signal interference voltage, high noise, harmonic number, a filter circuit is arranged in the amplifying circuit, prevent the amplified voltage harmonics and noise interference, more strong, but also saves the cost, suitable for use.
【技术实现步骤摘要】
【技术保护点】
带滤波的放大电路，其特征在于，包括由JFET共源电路作为第一级和BJT电流跟随器作为第二级组成的共源?共基串接电路，其中JFET上还连接有滤波电路。
【技术特征摘要】
【专利技术属性】
技术研发人员：黄德诚，
申请(专利权)人：四川高软软件科技有限公司，
类型：实用新型
国别省市：
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