I recently encountered a vexing problem. When the set-top box is turned off, the TV will make a "pou..." sound. I wonder if there is any way to remove it.
The current power-off Mute circuits are:
The
I want to write a delay function with parameters, but when I compile it, I get Warning[Pe174]: expression has no effect. I wrote it this way in Keil before, but it doesn't work in IAR. What's the prob
Although many American companies believe that RFID will be a "tech bubble", China is now fully promoting the application of this technology. According to a recent trend report "RFID in China (2008-201
The company is making a product that requires the PCB board to pass UL certification. We have found many PCB manufacturers, but all of them have FR-4 boards that have passed UL certification, but alum