Kneel down and beg, that big brother can give me a list of the components on the circuit board, wait

Updated on technology 2024-08-08
6 answers
  1. Anonymous users2024-02-15

    Only a part of it can be seen clearly, and it is generally necessary to provide a template with components in the component list.

    I'll tell you if you can see it clearly!

    Plug-in color ring resistance: 10k 47k each electrolytic capacitor: 47uf a 220uf 3.

    In addition, the silk screen on the board can be analyzed, and there are transistors and seats, etc., but the model, spacing, resistance, and package are not known. It is impossible to judge without physical measurements.

  2. Anonymous users2024-02-14

    Name Quantity.

    mj21194 4

    Ohm 5w 4

    c3241 1

    10 ohms 111

    220uf 321

    330pf 1

    210k 1

    220 ohms 1

    47k 1al358 1

    a970 4

    47uf 1

    50 ohm adjustable resistor 1

    2k adjustable resistor 1

    Two terminals of two grains.

    One of the three terminals.

    Special 1 Special 1

    47k or 47 ohms can't see clearly, 5 pin row block 1

  3. Anonymous users2024-02-13

    Brother Niu, I admire you, you have to be listed by others for such a point, you are too lazy.

  4. Anonymous users2024-02-12

    The following figure shows a safe burglar alarm circuit, which is mainly composed of voltage electric sensor Bz1, tilt sensor B22, temperature sensor RT, voltage comparator IC3 and other components.

    Piezoelectric sensor BZ1 is connected to the input end of voltage comparator IC3-1, when it is vibrate, there will be an electrical signal, the electrical signal is amplified by IC3-1 and IC3-2 and then driven by or gate IC4-1 and IC4-2 to drive the transistor to turn on the relay action, and the contact of the relay is connected to the alarm buzzer.

    There is also a tilt sensor (mercury switch) on the safety lock, when someone moves the safe, the mercury switch on the safety lock is turned on, or the @ pin of the door circuit IC4-1 also outputs a high level to give an alarm.

    The third sensor is the temperature sensor, when the safe is subjected to high heat, the resistance value of the thermistor RT drops, and the high level of the pin output of IC3-3 is added to the OR gate IC4-1 to make the alarm circuit act.

    You can organize the list of components yourself.

  5. Anonymous users2024-02-11

    Capacitive diode manifold block.

  6. Anonymous users2024-02-10

    There is a logo on the chip, you can check the information on the Internet according to the logo name, and the logo on ** is too small to see.

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