common problems

How do I measure resistance?
February 14, 2025 341
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...
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What is a resistor?
February 14, 2025 284
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...
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How do I measure voltage?
February 14, 2025 421
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, ...
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What is voltage?
February 14, 2025 327
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,...
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How do I measure the current?
February 14, 2025 471
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...
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What is current?
February 14, 2025 510
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...
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What is the difference between a DC power supply and an AC power supply?
February 14, 2025 420
Alternating current is suitable for transmission and distribution of electricity over long distances through the grid system. Direct current is a one-way flow of charge and is more reliable than alternating current, but is not suitable for long-distance transmission. Most electronic devices use DC because their voltage is constant, such as devices powered by batteries. Some devices also use rectifiers to convert AC to DC. Power supplies usually have an internal...
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What is an AC power supply?
February 14, 2025 592
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...
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What is alternating current (AC)?
February 14, 2025 341
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 -...
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How do I test a DC power supply?
February 14, 2025 422
There are several ways to test a DC power supply, here we only introduce a few common methods. Conductivity test: You can use the multimeter's conductivity mode to accomplish this test. Touch the positive and negative terminals of the power supply with the multimeter pen. If it is on, the multimeter will beep. This test is designed to determine if the power supply is delivering power and if there are any breaks in the wiring. Voltage...
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common problems

How do I measure resistance?

What is a resistor?

How do I measure voltage?

What is voltage?

How do I measure the current?

What is current?

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

What is an AC power supply?

What is alternating current (AC)?

How do I test a DC power supply?

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