Tee-configuration filters often present uncontrolled rising input impedance in the stopband, which can destabilize driving amplifiers. John Dunn explains the mechanism and a filter-pair remedy.
John Dunn 在 EDN 解析 T 型濾波器於止頻帶輸入阻抗失控的問題，以及如何透過濾波器配對架構讓阻抗在止頻段趨近受控的負載值，提升驅動放大器穩定性。
Vishay expands the IHLP1212-EZ-1Z inductor series to 24 parts in a 3×3mm footprint with profiles from 1.2–2.0mm, up to 14.3A saturation current, and powdered iron composite construction for magnetic s…
Vishay 新增 24 個型款至 IHLP1212-EZ-1Z 功率電感系列，封装仅 3×3mm，饱和电流最高 14.3A，採用粉末铁芯结构消除气隙並提供磁遮蔽，適用於空间受限的工业、消费性电子与医疗设备 DC/DC 转换器。
Analog ICs, sensors, and discrete passives used in critical infrastructure ($150B TAM) lack the ID and certificate infrastructure that protects digital chips — creating a supply chain blind spot that …
類比 IC、感測器與離散被動元件缺乏保護數位晶片的 ID 與憑證基礎設施，構成關鍵基礎設施（1500 億美元市場）的供應鏈盲區，業界正積極開發內在與外在 ID 解決方案以堵住漏洞。
In EV charging systems, capacitors handle the unseen work of smoothing voltage ripples, filtering EMI, and stabilizing DC links — enabling 98% efficiency in onboard chargers and making fast charging p…
KYOCERA AVX launches the FFLK series traction-grade DC filtering film capacitors with controlled self-healing dielectric film (patented 1976), rated for 100,000 hours, up to 3,020µF and 3,800VDC in cy…
EMIS launches the MF420-2CF-M EMI filter specifically designed for high-field MRI shielded rooms, suppressing unwanted signals up to 10GHz with MRI-specific safety features including discharge bleeder…