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  • How do I measure resistance?

    Wondering about resistance measurement methods! In this article, we will cover basic resistance measurements and precautions. Resistance is very important in electronic device circuits. If the resistance is not appropriate, it can lead to malfunctions and other problems. However, electricity is not visible. To find out if the resistance in a circuit is appropriate, you need to use a specialized measuring instrument. To measure resistance, you need to use a measuring instrument...

  • What is a resistor?

    What is resistance in electricity? This article will cover the basics of resistance, how to calculate resistance, and resistors. Many people have heard the word "resistance" when they were students, but may still not understand it. However, because they don't understand it, they are hesitant to ask people about it now. Simply put, resistance is a force that flows in the opposite direction of the current. Resistance...

  • How do I measure voltage?

    How do I measure voltage? If you use a multimeter, anyone can measure it easily ■ Summary Since voltage is not visible to the naked eye, it is not possible to confirm "how much voltage is flowing through a circuit at a glance". However, the circuits of electronic devices have a set voltage for normal operation, and if the voltage is too high, it may lead to product malfunction or personal injury. In addition, ...

  • What is voltage?

    What is voltage? An easy-to-understand explanation of the difference from current and knowledge of units of measurement ■ Outline When using electronic equipment, you need to have a clear grasp of current, resistance, and voltage. However, there are many people who only know these words and do not understand them in detail. Here, we will explain in layman's terms what the definition of voltage is, what the difference between current and potential is,...

  • How do I measure the current?

    Why do you need to measure current? In this article, we will cover the reasons for measuring current, how to measure current and what to look for when measuring current. We cannot see the current that is flowing with our own eyes. Therefore, specialized measuring instruments are needed to measure current and other parameters. But why do we need to measure current? And how should we measure it? This article will detail the reasons for the need to measure current...

  • What is current?

    What is current? In this article, you will learn the difference between current and voltage, as well as the types of current and how to measure it. We all touch and use electricity on a daily basis. However, there are many things about electricity that you may not know. In this article, we will introduce you to the basics of electric current, the difference between electric current and voltage, and the types of electric current and how it is measured in an easy-to-understand...

  • What is the difference between a DC power supply and an AC power supply?

    交流电适用于通过电网系统远距离输电和配电。 直流电是一种单向电荷流，比交流电更可靠，但不适合远距离输电。 大多数电子器件都使用直流电，因为它们的电压是恒定不变的，例如使用电池供电的器件。 有些器件也会使用整流器将交流电转换为直流电。 电源通常具有内...

  • What is an AC power supply?

    An AC power supply is responsible for providing AC power to the load. The power input can be either AC or DC. You need an AC power supply because the power from the wall outlet does not meet the specifications of the load. In order for the load to operate properly, you need to transform the AC power supply to tune the AC power from the supply to the voltage, current, and frequency required by the device. This can be done by boosting...

  • What is alternating current (AC)?

    Alternating current (AC) is a type of electric current whose polarity reverses periodically and whose amplitude varies continuously over time. AC power is often used in businesses and homes because it is cheaper and more efficient to generate and transmit than direct current (DC) power. During transmission, a transformer can reduce power loss by increasing or decreasing the voltage of the AC line. Alternating current (AC) is a form of household electricity -...

  • How do I test a DC power supply?

    测试直流电源有好几种方法，这里我们只介绍几种常用方法。 导通测试：您可以使用万用表的导通模式来完成此项测试。 用万用表表笔接触电源的正极和负极。 如果是导通的，万用表将会发出提示音。 这项测试旨在确定电源是否正在供电以及接线中是否存在断点。 电压...

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