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What is Radio Frequency? Radio Frequency, or RF for short, is radio frequency current, which is the abbreviation of a high-frequency alternating electromagnetic wave. Alternating current that changes
The basic method of measuring frequency with single chip microcomputer is proposed, the causes of frequency measurement error are analyzed, and the application of single chip microcomputer frequency m
[i=s]This post was last edited by Junior Electrician on 2022-7-21 19:27[/i]Made according to this circuit diagram. Used to drive the backlight of a 4.3-inch TFT screen. Even without the screen connect
Feedback: It can be described as sending part or all of the output (voltage or current) of the amplifier circuit back to the input end of the amplifier circuit in a certain way. We sometimes call the
[i=s]This post was last edited by qwqwqw2088 on 2020-12-16 07:46[/i]Everyone knows that impedance should be continuous. However, as Luo Yonghao said, "There are always times in life when you step on s