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There are several ways to test a DC power supply, and here we present only 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 pens. If it is on, the multimeter will beep. This test is designed to determine if the power supply is energizing and if there are any breaks in the wiring.
Voltage Test: You can use the DC voltage mode of your multimeter to accomplish this test. Touch the positive and negative terminals of the power supply with the multimeter pens. The multimeter should display the voltage output from the power supply. Compare this voltage to the rated voltage of the power supply to make sure it is in the correct range.
Load Test: You can connect a load (such as a light bulb or motor) to the power supply and measure the voltage and current with a multimeter. The voltage should be stable and within the expected range; the current should be within the rated current of the power supply.
Ripple Test: You can measure the AC component of the power supply output voltage. Connect an oscilloscope to the output terminals of the power supply and measure the voltage ripple. The ripple voltage should be as low as possible and within acceptable limits.
Always test the power supply with care as specified in the operation manual and safety guidelines. If you are unfamiliar with electronic testing, it is best to consult a professional or use pre-constructed test equipment.
The article will cover the basics of impedance and points of measurement. Impedance is the resistance of an AC circuit and is invisible. Therefore, it must be measured using a specialized measuring instrument such as an impedance tester. People who have never touched an impedance tester before may be more concerned about how to use it and what to look for when using it. Therefore, this article will present in an easy-to-understand way the...
View Full VersionIf you want to measure current, voltage, etc., you need specialized measuring equipment. Analog and digital multimeters are usually used to measure current, but the circuit must be cut off and the multimeter and the circuit connected in series in order to make the measurement. However, it is not uncommon that it is not possible to disconnect the circuit in some cases. In addition, there is a danger of electric shock when the circuit is disconnected. In this case the clamp meter...
View Full VersionReal-time spectrum analyzers can collect data in the time domain and then convert it to the frequency domain using the Fast Fourier Transform (FFT). Real-time spectrum analyzers can quickly capture transient and fast signals. ,
View Full VersionWhat 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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