The main application of rectifiers is to convert AC power into DC power. Due to the fact that all electronic devices require direct current, but the power supply of the power company is AC, unless a battery is used, the power supply of all electronic devices cannot be without a rectifier. Rectifier is also a very important component on fluorescent lamps. Once it is damaged, the lamp will also become unusable. So, how to determine the quality of the rectifier? This article has collected and organized some materials, hoping to have significant reference value for readers. Here, we take the motorcycle rectifier as an example to determine the quality of the rectifier: 1. When the fuel valve increases the speed, if the voltage remains unchanged, it is normal. If the voltage suddenly rises or drops significantly, the rectifier is not working. 2. After the engine starts, remove the positive pole of the battery. If the battery does not turn off, but the voltage of the circuit exceeds 14.5V, or even reaches 18V or above, then the rectifier is faulty. 3. Using a digital circuit meter to directly measure the rectifier can determine whether the rectifier has achieved rectification effect
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