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RSG-I-FFA is a miniature cartridge fuse used in spacecrafts. The standards of implementation are SAST issued by Shanghai Academy of Astronautics No. 8 and CASTC issued by Beijing Academy of Aerospace No. 5. The products have been widely u…

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In the switching power supply design, the physical design of the PCB board is the last link. If the design method is improper, the PCB may radiate too much electromagnetic interference, causing the power supply to work unstable. The follow…

Origin of the oscilloscope

The Nobel Prize winner, German physicist KF Braun (Fig. 1) invented the CRT oscilloscope in 1897 for his curiosity about physical phenomena. He applies an oscillating signal to the horizontal deflection plate on t…

In the smart home and IoT world, sensors are critical. Wherever the household goes, the lights in the room will open accordingly, and the lights will automatically go out after leaving. After the tenants leave home, the security system will au…

I remember once that the customer walked into my office with the processor board and said that it consumed too much power and drained the battery. Since we have proudly claimed that the processor is an ultra-low-power device, the burden of pro…