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• Experience in recognition of circuit diagrams of electronic circuits and method of circuit analysis

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  Electronic 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?

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  The 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?

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  01 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

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  Summary: 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

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  Schottky 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?

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  For 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?

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  The 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!

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  Input 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

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  ne555 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.

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  About 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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