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-6-3-2. Calculation of parameters of the transformer of the excited switch power supplyThe parameters of the transformer of the excited switch power supply are mainly calculated from these aspects. One is the turns of the primary coils of the transformer and the volt second capacity. The larger the volt second capacity, the smaller the excitation current of the t
technology, core technology and MCU/DSP technology must be used. At the same time, because the communication devices in the modern communication network use a large number of large-scale chip, but also take into account the resulting low voltage, high current on the strict requirements of chip power supply, including low internal resistance, low ripple, soft start, anti-surge, anti-switch over-rush, suppor
, but if the UPS quality is not reliable, it is best to choose a power supply with a long voltage retention time. Redundant power supply Selection: This is mainly for servers with high system stability requirements. Redundancy generally includes
The basic function of the power supply in the computer is to convert 220V alternating current into the low-voltage DC power required by the computer, generally it is difficult to see the effect on the performance of the whole machine intuitively. But as a source of power, power
Advantages and disadvantages of data center Power Supply System Solutions As a protection for the normal operation of the data center, the design and selection of UPS have core significance for the construction of the power supply system of the data center. In the current use of the data center, direct parallel and 2N
use explosion-proof fuses. The biggest difference between the fuses and general fuses is that the external tubes are beige ceramic tubes, which are filled with fireproof materials to avoid Sparks During fusing. It is installed on the circuit board by means of fixed above the chip (the two ends are directly mounted to the wire seat and welded to the circuit board) and detachable in the center of the picture (fixed with metal clips ). The square component below is a temperature Fuse, which is fi
installation of a 8 cm fan, so that the air flow speed. However, the use of dual-fan design, there is a disadvantage: that is, the power supply inside the heat increased, bring noise. Some manufacturers will adopt a high sensitivity temperature-controlled bass fan, the fan with thermal diode can be based on the chassis and the different temperature in the
transformer includes single-excited transformer switch power supply and dual-excited transformer switch power supply, single-excited transformer switching power supply is widely used.
jinhetian Jinba ATX-S388 power saving Master, professional design for Internet cafes, not only powerful power, but also wide voltage design, effective to prevent computer damage caused by voltage problems. The standard power-saving Master also features a patented technology that adds an energy-saving power
, the output line switch to a dual-row 20-core plug to the motherboard power supply. Some ATX power supplies have a switch under the output socket that cuts off the AC power supply and shuts down completely. Intel l997 February l
key system, on-board auxiliary system, automotive entertainment system, automotive remote communication system, automotive equipment line and on-board bus system, etc, these systems constitute an automotive electronic system. Composition of automotive power supply: The power supply system of fuel vehicles is mai
Do you want to enable a power source without a motherboard? 20 pin atx has a sticky port on it, which is facing itself. Then, the number on the left is 4th in the lower row, and the number on the right is 4th in the lower row. Green and any one black. Black is the ground! Note:1. The PC power supply is a conversion power
Recently I have read several posts about power switching, so I will share with you the power switching circuit used in one of my projects. Thank you.Features:1. Supports touch switch and self-locking Switch2. Support automatic power-on of external power supply (which can be
is a low-noise oil Shaft Fan with 12 V 0.38a. The noise of this fan is already very low, coupled with the speed control circuit introduced previously, it can truly make users feel low noise. This small circuit located next to the low-voltage filter circuit is called an over-current detection circuit. It is used to detect the output of two groups of 12 V respectively. This is also one of the features of dual 12 V
display, current problems at a glance The breakthrough engineering expansion series products are equipped with an LED digital current display table to instantly reflect current changes in the circuit. Customers can view the current at any time, eliminate current problems in a timely manner, and take the security protection work one step ahead of schedule. Air Switch, dedicated high-power overload protection Equipment used in the data center has a
Enterprise Data Center is now more and more important, how to ensure the stable operation of enterprise data Center has become a key factor, UPS is currently a lot of enterprises in the data Center standard accessories, then how to choose a suitable enterprise application of UPS power. categories of UPS In general, the UPS system is divided into three categories, for back-up, on-line interactive and online. Different vendors will provide different co
My 7026-b80 uses a dual-power supply, because only one side of the power supply has been inserted, the result is always reported warning. Use # crontab-l root to check crontab. The system automatically adds the following statement: 0 **** wall % RC. powerfail: 2: Warning !
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