d d maintenance supply

On September 6, (tenth) China manufacturing supply chain management summit sponsored by e-works digital enterprise network was held in Qingdao.As a leading solution provider for smart factories in China, litins is invited to attend the event. It has gathered with well-known experts in the information field, supply chain managers of well-known manufacturing enterprises, and major

The current production of computer motherboards are using switching power supply mode. Switching power supply mode can be divided into: single-phase power supply, two-phase power supply and multiphase power supply. (1) Single-Phase power

Figure 1-7 is another type of tandem switch power supply, which is generally called a reverse series switch power supply. The difference between this type of reverse series Switching Power Supply and general series-connected switching power supply is that the output voltage of this type of reverse series switching powe

3C Certification Of all the power supply, only one power supply has not passed the 3C certification, of course, you can not buy in the market, because the power supply in our market, must pass the 3C certification, the power is not certified the application, waiting for certification a hand, it could be put on the market. This means that in the 3C certification

Power supply is a computer's "power Core", is also prone to failure of one of the components, the failure of the manifestation of a variety of forms. For example, after power-on memory parity error is often related to power, but users are generally easily mistaken for computer memory failure, can not connect with the power. In fact, once the power supply does not provide the normal operating voltage, the me

1-6. Switch Power Supply of excited TransformerThe transient control characteristics of the output voltage of the switch power supply and the load characteristics of the output voltage are relatively good. Therefore, the operation is relatively stable, and the output voltage is not prone to jitter, it is often used in scenarios with high requirements on output voltage parameters.1-6-1. Working Principle of

Today, the advanced planning scheduling system has become one of the hottest topics in supply chain management. APS uses some complex mathematical operations to process some variables, making supply chain optimization a reality. Today, optimization technology has become a key tool in enterprises' decision-making to increase their competitive advantages. Perhaps, for optimization technology, the most widel

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 supply is actually the basis of stability, if the power quality is not high or insufficient power, but at the same time to drive m

Assemble the computer process of the friend will tend to the power of the cold, like to focus attention to the processor (CPU) and independent graphics, memory and other major computer components, and often on the power is not how to care, which is the most easily in the power to obtain more profits in the reason, The stability of computer power supply is directly related to whether the whole machine can operate stably and whether it can work properly

Notebook its own biggest bright spot is convenient to carry, generally speaking when we use the laptop in the external power supply, the battery suggests the best to put inside, because the general battery is full of electricity, basically in a dormant state, the overall impact on the notebook life is quite small, generally we can ignore, In addition laptop and notebook battery life is basically equal, that is, can use a few years, after the bad use,

power of the Reverse type transformer is output and the current flowing through the secondary coil circuit. Figure 1-20 is the switching power supply of the anti-Exciting Transformer. When operating in the critical continuous current state, the input voltage of the rectification is UO, the load current IO, and the magnetic flux of the transformer core, and transformer initial and secondary current waveforms.Figure 1-20-a), the output voltage of t

We know that the rated power of the small power supply is difficult to meet the system demand, light is the crash frequently, heavy can not boot or even damage the hardware. Because of this obvious consequence, consumers often pay attention to power supply only when they buy power, ignoring other aspects. In fact, now buy power has not been a single focus on the rated power, but also should be in the power

UPS is an independent power supply with high quality and high reliability. It is a static and uninterrupted power supply device for battery. It consists of a rectifier, an inverter, an AC static switch, and a battery pack. In normal times, the mains supply changes to DC for battery floating charging, And the inverter outputs high-quality AC purified power

From: http://www.21ic.com/app/power/201206/126276.htm In a variety of past and present common power supply, switching power supply is very popular, generally can meet any design requirements. This kind of power supply is very economical, but there are some problems in the industrial design. This is a lot of switching power s