彩电中有许多二极管(如:开关电源中的续流管、削峰吸收管、方波整流管,行输出中的阻尼管、钳位管、二次整流管等),均要求其反向恢复时间 trr 要短(<1μs),俗称“快恢复二极管”。鉴于这类管子的品种繁多、型号杂乱不易分辨,市面所售又不乏仿冒、伪劣者,业余维修者往往需要自行鉴别“快恢复二极管”。 There are many color TV diodes (such as: switching power supply freewheel tube, peak absorption tube, square wave rectifier, line output of the damping tube, clamp tube, secondary rectifier, etc.), require its reverse recovery Short time trr (<1μs), commonly known as “fast recovery diode.” In view of the wide range of such tubes, models are not easy to distinguish clutter, the market is no shortage of fake sales, shoddy, amateur maintenance often need to identify their own “fast recovery diode.”