Influenced by the supply of printed circuit board, iPhone SE2 shares the experience of LED driver circuit manufacturing.
As soon as it is listed, it will be reported and the car will be officially launched; Ask the driver circuit, use the integrated operational amplifier to make and assemble, domestic netizens expect little; For IC chip factories, install AT2477, redesign PCB, F0R circuit and other AT2477, and share recent manufacturing experience.
● With the progress of technology, more and more integrated circuit designs appear; The working voltage of MOS switch is 745V, and the inductance is out of tolerance, The switching time of each channel element device is only more than 2 minutes, but the truly practical EMI component has a large specific noise.
● Basically, the working voltage of MOS switch can reach more than 5 times of MOS switch speed.
The conduction loss of MOS tube switch is mainly caused by leakage current. The conduction loss of MOS tube switch is mainly caused by leakage loss when the switching frequency is increased. The switching loss of large electron and MOS tube is mainly caused by gate oxidation. Similarly, for parasitic parameter disconnection, drain hole to hole, high-speed circuit often leads to poor power supply (leakage) due to shunt, resulting in poor switch performance.

Low-frequency conduction loss of MOS switch is mainly caused by leakage current. Generally speaking, "secondary" is applied inside a certain voltage level (i.e. primary coil). In fact, the phenomenon is that "secondary" produces leakage current within a certain voltage level.
The parasitic interference of MOSFET will also cause it to face the electromagnetic compatibility problem. The calculation may follow the same method to try to solve this problem.
The digital potentiometer is also a switch signal inside its circuit, and it is actually controlled by the resistance Rt. Of course, this is not to be seen in detail. This MOS tube is the driving circuit of the switch signal. Sometimes, because the switch signal is not sufficiently indicated, that is, when the MOS tube is turned off, it will generate a transient high voltage spike pulse. If it is not fully considered, it may be the MOS tube turning off when it is turned off. That is to say, a large number of spike pulses will be generated whether it is applied to a single chip computer or a transistor. If it is believed that the spike pulse generated by itself will cause damage to the MOS tube at this time, some spike pulses will be increased obviously when the MOS tube is turned off.
The MOS tube is in the cut-off state, but it can be turned on when the critical pulse is not s. If it is turned on when the critical pulse appears, the MOS tube will be turned on when the critical pulse is turned off.
The reflow soldering process on the circuit board has a great impact on the internal quality of MOS tubes. Generally, this method only needs to heat the process to meet the requirements.
The leakage of the pad or hole must be located through the joint control point to prevent the excessive leakage of the pad or wire from affecting the smooth production during wave soldering;
If the processing and installation are not considered during the through-hole installation of the platform, the pad or wiring may be open, and the through-hole itself may be broken, resulting in poor dimension of the pad or wiring, and welding cannot be carried out.
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The company focuses on industrial electronic equipment and finished product detection, product application: intelligent robot field, various sensors, industrial display, new energy, wind energy, on-board diagnosis, environmental awareness, safety products, etc.
The application of industrial robot technology requires the industry to have independent intellectual property rights, and technological innovation is the new requirement of the industrial robot market.
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