电路设计软件 电路模拟软件 sPlan , LTspice 等

电路设计/PCB绘制

立创EDA

https://lceda.cn/

sPlan

http://www.electronic-software-shop.com/splan-70.html?language=en
49.9 EURO

原贴：画电路图用什么软件比较方便？
https://www.zhihu.com/question/20256043

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电路仿真

LTspice

http://www.linear.com/solutions/7989

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators.

ngspice

原贴 Linux下有哪些仿真软件
https://www.zhihu.com/question/22352592