直接数字合成 - DDS是一个非常重要的概念，也是电赛中要考察的技能，一般都使用FPGA + 高速DAC或高集成度的DDS芯片来实现，得到几十MHz的模拟信号。实际上大多数的应用场景需要产生的信号在100KHz以内，完全可以用单片机的程序来实现，如果单片机内部有DAC ...

Most projects are built on abstractions. After all, few of us can create our own wire, our own transistors, or our own integrated circuits. A few months ago, [Julian Ilett] found a problem using the ...

我最近在为一项新设计进行实验，其中需要使用函数发生器。尽管新的函数发生器具有相当好的频率容差规格，但我需要获得更高的精度。用频率发生器、任意波形发生器和频率计数器获得更高精度的方法，是使用许多这些测试仪器上所提供的10MHz参考输入。

When multiple PWM converters are connected in series (or in parallel) in a power electronics circuit, it is appropriate to run all converters at the same frequency but with certain phase shift among ...

The good thing about computers is they do your work for you, right? If you are a programmer, that doesn’t always seem to be a true statement. [Runtimemicro] has the answer, at least if you are writing ...

Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

Arduino-Adafruit-PWM-Servo-Driver-Library.zip,Adafruit脉冲宽度调制伺服驱动器库Adafruit PCA9685脉冲宽度调制伺服驱动器库,Arduino是一家开源软硬件公司和制造商社区。Arduino始于21世纪初，深受电子制造商的欢迎，Arduino通过开源系统提供了很多灵活性。