North America North America: FCC, FDA, UL, ETL, DOT, NSF, EPA, CSA, ICEuropean Commission: CE, E-mark, RoHS, WEEE, VDE, TUV, GSChina China: SRRC, NAL, SFDA, CPA, CMC, CECP, EEL, SELO, CCMSJapan Japan: VCCI, PSE, JATE, JQA, S-MarkKorea Korea: KTL, MIC, EK-MarkAustralia/New Zealand Australia/New Zealand: A-Tick, C-tick, DOFT, QAS, SAIRussia Russia: GOST-RHongkong: HKSI, OFTASingapore Singapore: SPRI···
【查看详情】First of all, the nominal voltage of the general power supply refers to the voltage of the open-circuit output, that is, the voltage when there is no external load and no current output, so it can also be understood that this voltage is the upper limit of the output voltage of the power supply.In the case of using active voltage-stabilizing components inside the power supply, even if the mains vol···
【查看详情】1. Power adapter fuse: It is mainly used for overload protection. If the fuse is properly placed in the circuit, the fuse will cut off the current when the current abnormally rises to a certain height and heat, thus protecting the safe operation of the circuit.2. Inductance coil (also known as choke coil): blocking effect and tuning, frequency selection effect.3. Rectifier bridge: Convert alternat···
【查看详情】