电子产品

免费放大器功率计算器 — 使用欧姆定律计算输出功率、RMS/峰值/峰峰值电压和电流。根据SPL基础的功率要求、余量分析和热耗散估算，声学地选择放大器，适用于A类、AB类和D类放大器。

Free antenna length calculator for dipole, quarter-wave vertical, full-wave loop, inverted vee, 5/8-wave vertical, and 3-element Yagi antennas. Get exact lengths in both feet and meters instantly.

Free battery capacity calculator for runtime, charge time, and energy storage. Calculate how long your battery will last, how long it takes to charge, and design series/parallel battery banks.

Free Battery Runtime Calculator — estimate how long your battery will last under any load. Supports Standard (Ah/Wh), Peukert lead-acid, and IoT duty-cycle modes with chemistry presets and scenario comparison.

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点击使用此免费工具

点击使用此免费工具

点击使用此免费工具

点击使用此免费工具

免费扬声器分频计算器 — 设计2路和3路扬声器系统的被动分频网络。计算巴特沃斯、林克维茨-赖利、贝塞尔和切比雪夫滤波器的电容器（µF）和电感器（mH）值，并支持佐贝尔和L型衰减。