资 源 简 介
熔断器的教程
电子产品已成为极其精确和快速的。为增加的组件的功能，那么他们的脆弱性。这是一个FPGA的损伤要比破坏更大功率电阻。电子工业在向电路提供清洁能源方面取得了很大进展，但仍有可能会造成潜在损害的尖峰。随着这一点，总是有可能短的发展在一个电路，可能会导致过流条件，可能损坏设备。这就是简单的融合进入方程。熔断器要比整个电子设备便宜得多。通常，一个分量少于一美元的部件可以节省数千美元的其他设备。本文将介绍选择保险丝的不同考虑，一些工业术语，以及不同熔断器的应用。
A fuse is a device that protects the rest of the circuit. It is typically an inline device that allows a certain amount of current to flow through it. If too much current is flowing， the fuse will literally melt causing an opening and breaking the current flow. Two of the largest electrical consideraTIons for a fuse are the “Current RaTIng” and “Voltage RaTIng”。 The current raTIng is the maximum current that can flow through the fuse under normal conditions. Fuses will typically be de-rated at 25% to avoid nuisance blowing at 25˚C. An example from an article titled “Fuseology” by Littelfuse goes on to use a 10 amp fuse for a 7.5 amp circuit at 25˚C. The following equation shows how to find the current rating.
