The international product safety testing and certification agency UL (Underwriters Laboratories) awarded the world ’s first electric vehicle charging technology evaluation laboratory accreditation certificate based on the SAE J1772 standard to the Taiwan Electric Power ---MORE---
A few days ago, China's first large-scale domestic MOCVD equipment shipment celebration with world advanced level was shipped in the core park of Shanghai Zhangjiang High-tech Zone, which achieved the strategic goal of localization of China's large-scale MOCVD equipmen ---MORE---
Recently, Medtronic, one of the global medical device giants, announced on the 16th that it has completed the merger and acquisition of Kanghui Holdings (China). Under the agreement, Medtronic paid approximately $ 816 million in cash to the company listed on the New York Stock ---MORE---
1 Introduction In the high-fidelity audio circuit, the tube amplifier has always been loved and concerned by the majority of audio lovers because of its unique charm and music listening. In recent years, high-fidelity headphones have been favored by more and more music lovers ---MORE---
The power supply of the power amplifier should use the "large water pool" filter capacitor. Because the large-capacity capacitor has a large inductance, a small-capacity capacitor should be connected in parallel to "increase the speed of the power supply". ---MORE---
The picture shows the charging adapter circuit of a digital camera. The circuit uses a pair of transistor differential amplifiers and a current amplifier. Output constant voltage and required current respectively. Transistors T1 and T2 form a pair of differential amplifiers. T ---MORE---
Electronic enthusiast website news: At present, many players support APE / FLAC / WAV playback. Can the players that can play these music meet the HIFI standard? Here we can try to explain in principle to let everyone know this problem. The main purpose of the video player is ---MORE---