The Olympics is approaching, Tokyo's security will be raised to the largest scale. The opening of the Tokyo Olympics is just around the corner, and local security work is being promoted intensely. During the Tokyo Olympics and Paralympics, all parts of Japan will send support police forces to Tokyo, and about 60,000 people will be [...]
pregnant women Now, pregnant women should go to get the new crown vaccination. The WHO immunization strategy advisory expert group released the latest vaccination roadmap. This version of the recommendation indicates that pregnant women are at increased risk of serious infections from the new crown. Experts recommend that pregnant women be vaccinated. At [...]
Power supply high frequency filter capacitor selection skills 1) Theoretically, the impedance of an ideal capacitor decreases as the frequency increases (1/jwc), but due to the inductive effect of the pins at both ends of the capacitor, the capacitor should be regarded as an LC series resonant circuit, and the self-resonant frequency is The FSR parameter [...]
According to a report on the website of the Financial Times on July 12, the finance ministers of the Group of Twenty nations collectively supported carbon pricing for the first time, saying that this once controversial idea was one of "a wide range of measures" to tackle climate change. According to the report, the issue of [...]
Which capacitor is more suitable for filter circuit? Many electronic designers know the role of filter capacitors in the power supply, but the filter capacitors used at the output of the switching power supply are not the same as the filter capacitors selected in the power frequency circuit. They are commonly used as filters in the [...]