The Toshiba photo relay TLP3547 obtained during the event was the first time to use a photo relay. I preliminarily tested its switching speed and frequency response characteristics. The power was dire...
Radio Frequency Identification (RFID) technology is a contactless automatic identification technology that uses wireless radio frequency communication. Compared with the currently widely used barcode ...
The original topic requirements: Design a conversion system from HDMI input signal to CVBS signal output. First, convert the HDMI signal into an audio signal of the video signal that conforms to the I...
[p=32, null, left][font=微软雅黑]The selection of resistors in almost all power supply designs has different feature priorities and performance requirements, including the need for resistors that can hand...
The microcontroller is 5V, but many indicator lights are 24V. Most indicator lights have a current of 10~100MA, and there are usually more than 10 of them. I often use optocouplers + transistors to sw...