摘要
研制了一种体积小、性能高、基于LF356N芯片的电荷放大器，与传统电荷放大器相比，该电荷放大器具有体积小巧便于携带、功耗较低利于电池供电、电路简单成本低等优点。通过Multisiml0软件对电路进行仿真和对硬件电路进行检测，将幅度为0．5V、频率依次改变的电荷信号输入电荷放大器，得到了接近5v的电压信号，从而验证了该电荷放大器的可行性与可靠性。该电荷放大器尺寸为7．15cm×2．25cm×1．20cm，体积为19．32cm3，带宽为20～150kHz，功耗为1mW，并且具有10倍的增益。
A novel charge amplifier was developed based on LF356N, that had advantages of small volume for easy to carry, low power consumption for battery power supply and simple circuit for lowing the cost. The signals with the amplitude of 0.5 V and frequencies successive changing were inputted into the charge amplifier, and its feasibility and reliability were verified by simulating the circuit with Multisim10 and testing the hardware circuit. Magnitudes of the charge amplifier are 7.15 cm×2.25 cm×1.20 cm and the volume of 19.32 cm3, bandwidth is from 20 kHz to 150 kHz, and gain of 10 times at a power consumption of 1 mW.
出处
《电子元件与材料》
CAS
CSCD
北大核心
2014年第4期52-55,共4页
Electronic Components And Materials
基金
青海电力科学试验研究院资助项目(No.9161324601)
北京市自然科学基金资助项目(No.4122030)
