M0s ore pool
Publish: 2021-04-17 04:59:53
1. This brand is only known by the manufacturer.
2. The so-called "IGBT combines the advantages of FET and transistor" is not correct, at least not rigorous. Because IGBT and FET are the fine classification of transistor, IGBT is a kind of "narrow" transistor, that is, "bipolar transistor"
3. For ROM
MOS, first of all, it is an abbreviation in English, which is the name of all our instruments.
MOS, first of all, it is an abbreviation in English, which is the name of all our instruments.
4. Diode gear, red probe connected to s, black D, 0.5 to 0.7V, reverse infinity, G and D, s no matter how infinity
5. The function of FET is similar to that of ordinary triode, but the input impedance is much higher, and the shed electrode (equivalent to the base of ordinary triode) hardly needs current
6. When I see modo, I think Shi
7. The VMOS tube in the controller acts as a switch and drives the motor to work through the control of the control chip.
8. MOS source resistance is related to your maximum power
calculate the peak value of primary current with power and efficiency, and then multiply the peak current by the resistance to get the voltage (usually a small RC is used to eliminate the voltage spike). The voltage of some chips is 1V, that is to say, your peak current multiplied by the resistance is 1 (depending on the chip)
the electronic load with MOS tube as the core is equivalent to a PWM controlled electronic switch. By changing the ty cycle, the time length of the output current (that is, the ratio of MOS tube conction per unit time) can be changed, so as to change the average current, and then the heat value can be changed according to the resistance heating formula
calculate the peak value of primary current with power and efficiency, and then multiply the peak current by the resistance to get the voltage (usually a small RC is used to eliminate the voltage spike). The voltage of some chips is 1V, that is to say, your peak current multiplied by the resistance is 1 (depending on the chip)
the electronic load with MOS tube as the core is equivalent to a PWM controlled electronic switch. By changing the ty cycle, the time length of the output current (that is, the ratio of MOS tube conction per unit time) can be changed, so as to change the average current, and then the heat value can be changed according to the resistance heating formula
9. I remember answering this question once not long ago:
welding machine, in fact, the core is the power supply
to design welding machine is to design welding power source. The key point is to control the external characteristics of power source and verify and calculate the reliability
as for the design scheme, it depends on the needs, and there is no difference between good and bad
the quality of welding machine is mainly reflected in the design parameters of welding machine
so don't tangle, recognize word of mouth and brand;
welding machine, in fact, the core is the power supply
to design welding machine is to design welding power source. The key point is to control the external characteristics of power source and verify and calculate the reliability
as for the design scheme, it depends on the needs, and there is no difference between good and bad
the quality of welding machine is mainly reflected in the design parameters of welding machine
so don't tangle, recognize word of mouth and brand;
10. Find videos on Youku
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