Large quantity of power supply module is preferred

发表于2021-05-20

  1. When stopping the welding of input or output products, be sure not to operate with electricity. The size of C2 is enough to make the main oscillator output a relatively stable oscillation frequency of about 350kHz in the VDD range of 1. 9 to 8V. The oscillator circuit also uses a ring oscillator structure, which uses the principle of sub-threshold conduction to reduce the starting voltage to 0.8V, but this oscillator has a very large frequency change in the VDD range of 0.8 to 1.9V. An abnormally large inrush current will be formed during the start-up phase of the circuit, which will make the system unstable. The proposed oscillator suppresses the above defects, which not only guarantees the start-up at 0.8V, but also avoids excessive changes in the oscillation frequency. However, after the oscillator is turned off and due to process trends, it is likely that the R and S terminals will show more than a single state. , Resulting in excessive power consumption, and constitute the follow-up circuit can not work normally. The electronic editor is making improvements, adding M17 tubes and M18 tubes, and the built oscillator is shown in Figure 3. M1 to M13 are low input voltage bias current circuits. The main function of this circuit is to generate a constant nanoampere bias current under low input voltage.


    Zhongshan ups power module is large and favorably

    This series of products have the characteristics of high efficiency, high reliability, low power consumption, and provide a variety of expansion packages (rail type and wiring type, etc.). This series of products are widely used in industrial control, electric power, office, civil and other fields. The maintenance function of the module power supply should include at least input over-voltage, under-voltage, and soft-start maintenance; output over-voltage, over-current, and short-circuit maintenance, and high-power grade products should also have over-temperature maintenance. According to the formula η=Pout or Pin=Pout or (Pout+P consumption), where Pin, Pout, and P consumption are respectively the module power input, output power level and its own power level loss. This: It can be seen that under certain conditions of output power level, the lower the module loss P, the higher the power level, the lower the temperature rise, and the longer the service life. In addition to the normal loss at full load, (module power loss when the output is short-circuited), because the smaller the two losses, the higher the power level of the module. First, if the short-circuit fails to take measures in time, it may not be a long time for a certain period of time, and the probability is also great. Decrease. Of course, the smaller the loss, the more suitable the energy saving request. This article introduces the selection of DC through a variety of ways such as rated power level, packaging method, shortcoming maintenance, etc., and provides more options besides voltage conversion function.


    Zhongshan ups power module is large and favorably

    With the concept of "professional design, reliable quality, excellent service", we constantly improve the company's technological innovation level, quality management system and customer service awareness, and strive to make our products and services recognized and trusted by all customers It will be our honor! normal. The maintenance function of the module power supply should include at least input over-voltage, under-voltage, and soft-start maintenance; output over-voltage, over-current, and short-circuit maintenance, and high-power grade products should also have over-temperature maintenance. According to the formula? Among them, Pin, Pout, and P consumption are respectively the module power input, output power level and its own efficiency loss. It can be seen that under certain conditions of the output power level, the lower the module loss P, the higher the power level and the longer the service life. In addition to the normal loss at full load, two losses are particularly worth paying attention to: no-load loss and short-circuit loss (module power loss when the output is short-circuited). Since these two losses are smaller, the higher the power level of the module is indicated, and the short-circuit cannot be taken in time. In the case of measures, there is a very small probability for a long period of time, and the smaller the short-circuit loss is, the probability of failure is also greatly reduced. Of course, the smaller the loss, the more suitable the energy saving request. With its compact size, outstanding performance, and convenient choice, it has become increasingly popular in the fields of communications, networks, industrial control, railways, and so on.