Draw a SOT-3 package, the middle pin is a special-shaped pad. According to the method on the Internet, why is the solder mask layer between the pin and the special-shaped pad always displayed? I would
Use 430 to generate a spwm. I use regular sampling. When the carrier ratio is set to 129, the waveform is normal. Once it exceeds 129, it will be distorted. If it is set to 500, the sine wave will dir
It's like this. After I configured the source code, I ran make to build it, but a problem occurred and I don't know how to solve it. I'm here to ask for help. Since I don't know much about this and I'
In view of the defect that the digital circuit model of Protel99SE is not suitable for pulse circuit simulation, this paper discusses how to create subcircuit models and hierarchical module circuits t
It is said that FPGA can multiply the frequency. My board has EP2CQ8Q208 chip and 50M external crystal oscillator. What is the maximum multiplication frequency? Thanks in advance.
Major LED manufacturers are constantly improving their upstream epitaxial technology, such as using different electrode designs to control current density, using ITO thin film technology to evenly dis