Archive
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Experience in recognition of circuit diagrams of electronic circuits and method of circuit analysis
ArchiveElectronic circuit diagrams, as a rule, consist of circuit diagrams, block diagrams and assembly (installation) diagrams. The circuit diagram is an important part of electronic circuit diagram. It consists of various symbols (grap...
2023-03-18【Archive】
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Do you understand all this knowledge of inductance?
ArchiveThe current of an inductive element cannot change abruptly. (After removing voltage from inductor, current will not disappear immediately, so a reverse electromotive force will be generated) Inductance is a type of energy storage ...
2023-03-18【Archive】
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Do you know four magical ways to use a digital multimeter?
Archive01 Determining if a circuit or device is charged The AC voltage digital block is very sensitive, even if there is a small induced voltage around it, it can be displayed. For this feature, it can be used as a test pencil. The usage...
2023-03-18【Archive】
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Commonly Used Diode Circuits Essential for Engineers
ArchiveSummary: A diode is a very commonly used basic component. This article mainly talks about its application in circuitry. Freewheeling, Wave Detection, Voltage Doubling, Latching, Envelope Detection. 1. Antireaction In main circuit...
2023-03-18【Archive】
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Schottky diode principle
ArchiveSchottky Diode The Schottky Diode is named after its inventor, Dr. Schottky, and SBD is short for Schottky Barrier Diode. The SBD is not made by principle of contacting a P-type semiconductor and an N-type semiconductor to form a ...
2023-03-18【Archive】
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Case analysis! Why can't crystal oscillator be placed on edge of PCB?
ArchiveFor driving recorder, you need to add an external adapter during test. When machine is turned on and tested, it is found to exceed standard. Specific frequencies: 84MHz, 144MHz and 168MHz. It's necessary. analyze cause of excessiv...
2023-03-18【Archive】
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What is purpose of connecting a polar capacitor and a non-polar capacitor in parallel?
ArchiveThe circuit diagram is drawn as a polar capacitor and a non-polar capacitor connected in parallel, more for purpose of adding appropriate contact polarity information to PCB silkscreen layer during drawing board process, to avoid ...
2023-03-18【Archive】
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You will understand difference between input impedance and output impedance after reading this article!
ArchiveInput impedance Input resistance (input resistance) refers to equivalent circuit input resistance. Add a voltage source U to input terminal, measure current I at input terminal, then input resistance Rin will be U/I. You can think...
2023-03-18【Archive】
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15 interesting schemes 555
Archivene555 is an almost very common IC that can be seen in many electrical appliances. This article has collected some interesting ne555 circuits for you. 1, 3*3*3 light cubes 2. Laser Beams 3. Metal detector 4. Music box ...
2023-03-18【Archive】
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A detailed explanation of role of pull-up resistors on triodes and MOS lamps.
ArchiveAbout triode A brief explanation on triode, if triode operates in saturation region (fully turned on), Rce≈0, Vce≈0.3V, and this is 0.3V, then we think it is directly grounded. Then it is necessary to make Ib greater than or equal...
2023-03-18【Archive】
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