§01高pressed device

一、IC器件

1、LM78M09

  This is an integrated three-terminal voltage regulator circuit,LM78M09 先直接将64V加入LM7809,The output is open circuit. 接入之后,The chip hasn't changed. Add one to the output330ohm load resistance. The chip has not changed. The output is short-circuited directly below,施加64V. LM7809Pulled across immediately.

  
  The following will burn outLM7809打开,Take a look at the internal damage. It can be seen that the silicon wafer and the peripheral wiring have been melted.

2、LM358

  Played first 是LM358, 施加的电压为32V. Check out his changes.在32V下,LM358没有问题. Increase the voltage to 64V. The chip is also unscathed.

  
  下面将LM358input direct power supply. 结果LM385仍然安然无恙. 好吧,放弃对LM358of mutilation.LM358really solid.
  

二、无源组件

1、电阻

  下面将330Ohm resistor is connected64V电压下.It was easier to bring him into submission. This is a tragic situation after surrender. Take a look at the process under a magnifying glass below.

2、电容

  这是一款16V,10uF的小电容. The following is applied on the breadboard64V电压.Look at the corresponding situation. You can see the heating inside the capacitor,The bottom bulged. 由于体积比较小,So the shell didn't break.

3、色环电感

  这是一个5.7uHcolor ring inductance. 施加64Vafter the voltage.It can be seen that it heats up immediately,The breadboard below is also about to melt. Here's a close-up look at the reheating process. The skeleton of the inductor has blown out. The breadboard has also melted.

※ 总  结 ※

  这The device high voltage test was carried out on a breadboard.