[Photo] DC stabilized power converter development How to achieve synchronous output of DC stabilized power in the future
Release time: 2019-11-01
In the past few months, due to the promotion of the telecommunications industry, the supply and demand of DC stabilized power converters have increased. But companies have differing opinions on price trends.
In mainland China, the total market demand in 1999 was $ 3 billion, and it is expected to reach $ 5 billion by 2004. The leading products in the market are small and medium power DC power converters, but manufacturers believe that high density and low voltage products will become mainstream in the next few years.
In Taiwan, due to the continuous upgrade of DC power converters and the introduction of new models, there will also be a large increase in market demand and production capacity. The newly launched products are mainly designed for telecommunications applications, with small and efficient features.
In Hong Kong, most products are used in audio equipment, but manufacturers are also developing devices for telecommunications. In design, the focus is on safety features and improved products.
Models designed for computers, communications equipment, and portable information DC power converters are gaining popularity in Japan. This trend is expected to continue, and companies are working to develop space-saving, efficient, and low-cost models.
The Indian market is also expected to show positive growth. DC power converters are expected to focus on industrial-grade models.
According to the above, the development of DC and DC stabilized power converters has two development directions: miniaturization and high efficiency.
： More concerned :
In order to achieve the output synchronization of the DC stabilized power supply, a synchronous zero-voltage switch must be realized first, that is, the corresponding phase of the standby power grid is only switched on when the cut-off grid voltage corresponding phase voltage crosses zero. It has been extended to the 50 Hz city power range. The issue of zero-voltage switching will be discussed later. Here, two generators supply power to two computers respectively, and the third motor G8 is standby (idling). When the two motors When the operation is normal, the indicator light Lz is on, and the output voltage is abnormal. For example, if the voltage is faulty, the controller immediately measures it, cuts off the control signals of Sll-S18 and adds control signals to S81-S38. After the machine is replaced, the indicator light is off and L81 is on after the motor is replaced, which indicates that the same is true for G8 instead of GB instead of Gi, and it can still be exchanged when S is abnormal. If the voltage is not faulty, it is a normal replacement maintenance. You only need to push (or press) the replacement rotary switch (or button). Of course, you can use the electronic switch and contactor in combination to reduce the size and power consumption. That is, use the electronic switch when changing the machine. After the connection process is completed, close the contactor or the gate knife. To change the machine, first pull off the contactor or the gate knife, but use heat pipe technology to dissipate heat. Its volume is not much larger than a contactor of the same capacity. In this way, the above-mentioned electronic switch connection technology is used to remove the maintenance time MTTR from the reliability formula. To some extent, the requirements of AC uninterruptible power supply have been realized, which is the fault intensity and maintenance rate of AC power supply systems. However, since the maintenance time MTTR is reduced to zero in both DC and AC systems, Po is also 1. In this way, a power supply system composed of DOHRS and UPS-like UPS can surely ensure that the computer will not be stopped due to a power supply system failure during the specified working time.Well, about "should achieve synchronous output of DC stabilized power supply", let's talk about it here today, if you have any questions, or for DC stabilized power supply, Shijiazhuang Shuying Instrument Co., Ltd. Local, you can telephone consultation, of course, you can also consult our customer service online!