Question 2: What are the classifications of power supplies? Ordinary power supply classification:
Switching power supply, inverter power supply, AC regulated power supply, DC regulated power supply, DC/DC power supply, regulated power supply, communication power supply, modular power supply, frequency converter power supply, UPS power supply, EPS emergency power supply, purification power supply, PC power supply, rectifier power supply, customized power supply, heating power supply, welding power supply / arc power supply, plating power supply, network power supply, power supply, power supply operation Power supply, adapter power supply, linear power supply, power controller/driver, power supply, other general power supply Inverter power supply, parameter power supply, household power supply, transformer power supply.
Special power supplies are categorized as:
Security power supplies, high-voltage power supplies, medical power supplies, military power supplies, aerospace power supplies, laser power supplies, other special power supplies.
Question 3: How many types of power supplies? What are they? 2 types
A voltage source, a current source.
A voltage source is a power supply device that provides a relatively stable voltage to an external circuit.
A current source is a power supply device that provides a relatively stable current to an external circuit.
Question 4: What are the requirements for choosing a power supply for a computer? The main one is the power, and how many pins your motherboard is, this must correspond.
Question 5: What are the types of power supplies? What are the products and areas of use? What is a customized power supply? This question is not very good answer, any electronic product has a power supply part, all need to be transformed from AC voltage to DC voltage, including our common TV sets, computers, DVDs, stereos, switches, routers and so on have a power supply part. For example, you see the most common computer power supply size is the same (of course, there are several standards) at least the size of the plug to connect to the utility plug that side and the screw holes as well as the output line of the line voltage is the same, which is the role of standardization to ensure the compatibility of different manufacturers of equipment, but some devices need to use special power supply due to the design of the equipment will be in accordance with the needs of the design of the power supply
Question 6: What is the network power supply control system Overview: The network power supply control system is the most important part of the power supply system. What is the power network power control system Overview: Network power control system officially launched in early 2008, also known as RPDU, Powerbox, intelligent PDU, intelligent power control system, rack-mounted power distribution system, it is a new concept and new products for the domestic market. It includes two parts: network power controller hardware equipment and centralized management and control platform, which is independently developed and produced by Omnicom HSI. It has a rich system product line of Powerbox series, which includes three major categories: standard horizontally placed 1U/8-port product series, vertically suspended 0U/16-port product series and wireless single-port product series, and at the same time, it can be customized and tried out. It was formally developed in early 2008 and passed the national audit. The system especially highlights the concept of "intelligent" management, through the introduction of Ethernet networks, multi-channel wireless networks, voice services and other novel means of communication, the addition of intelligent management and control modules, and the use of self-developed control chip constitutes a power distribution unit that can be remotely controlled and scheduled management. It completely covers the functions provided by the conventional PDU and PCU devices seen in the market, and at the same time, it especially highlights the concept of "intelligent management and remote monitoring", and is specially designed to provide remote power control and multiple power protection for the routers, switches, servers and other electronic equipment in the Internet data centers, as well as other important power-using equipments. The product. Through the Internet, multi-channel wireless network and other means of communication, it can individually switch on and off or restart one or more electronic devices connected to the PowerBox, and realize remote management through the added intelligent management and control module and the self-developed control chip. At the same time, it also has the function of providing timely and detailed port-level power supply information, which can refine the management authority to each power supply port, carry out remote control and intelligent management of power-using equipment, realize IP-based control of equipment and make real-time inquiries about current, voltage value, temperature and humidity, etc., which breaks the status quo of the market in which similar products usually can only inquire about one device as a whole as a power supply profile. It also provides strong security standards, capable of providing superb password support, socket-level permissions, group-level permissions, etc. and access control lists by socket, etc. It is able to operate securely in stand-alone mode, or be integrated into external verification and authorization services. At present, it is the first domestic, but also the world in addition to the U.S. Avocent products with "conditionally triggered tasks" of the advanced remote power control products. It can provide secure TCP/IP access and monitoring capabilities, can be a good solution to the problem of power equipment crash or equipment running in the key task error can not work properly, can be a real-time detection of POP3, HTTP, ICMP, GET delay and other services normal or not. Once the error is detected, it will provide equipment restart service and notify the user after restart, thus effectively solving the problems of manual misoperation and excessive delay, etc., and truly guaranteeing that the equipment management work is 7*24*365 all year round and the equipment point is unattended. Features of network power control system: Externalized remote: Transmit management and control information and data information through different physical channels, independent of each other, without interfering with each other, external management to easily realize the remote management of equipment power supply. Provide common network tools for TCP/IP protocol, you can remotely query, switch or restart the power supply of the controlled equipment anytime and anywhere through the Web interface, and at the same time, reduce the possibility of shutting down the target equipment due to accidental errors. Independent control: independent status query and management for each device connected to the controlled socket (some models have independent insurance, which can be used as overload protection to prevent power surges when adding power, and does not affect other devices when the power supply is abnormal); Clustered management: a system can manage and control any servers or other power-using devices within its authority, and you can realize unified management of devices on the simple interface of the system. Grouped management: one system can manage and control any server or other power equipment within its authority. Intelligent monitoring: China's unique conditional control function (you can set the time task and trigger task) combined with active detection technology (TELNET, HTTP, HTTPS, POP3, FTP, SMTP, ICMP), according to the set schedule and trigger conditions for shutdown, restart, or alarm and record, once found that the network equipment is down, but also according to the pre-set program for automatic reboot; can also be used for automatic reboot; can also be used for automatic restart; can also be used for automatic restart. Once the network equipment is found to be down, it can also be restarted automatically according to the pre-set program; it can also be set to restart at regular intervals to release the server memory; it can also monitor the power, temperature and humidity of the equipment, and remove the dead space of the equipment for heat dissipation or refrigeration. Unmanned guarding: can not simply re ...... >>
Question 7: What are the major brands of computer power supplies? Foreign brands
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Corsair (Corsair)
Si Min (zalman)
ANTEC
Domestic brands
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Greatwall
The company's name is "Greatwall". greatwall)
Huntkey
Delux
Century Star
Cooler Supreme
Segotep
GT
SilverStone
TT
Big Buffalo
FOXCONN
Best-top
Your so-called miscellaneous brands (not very well known brands)
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R-Senda
oxhead
seasonic
NESO
Xigang
Brave ( COUPDEN
OCZ
J&M
Oriental City
SAMA
FSP
shunda
Power Train
Seven Alliance
COPLION
The first of its kind, it is the first of its kind in the world. )
Weixun
Chuanqi
Bindong
Shouchang(L&C)
Baiyue
Acbel
Belson
Korda
Xingyuquan
Haimei
Jinpin
Maxin
VIA
AOpen
Meiji
Huakangpc
Sinbad
BAIDUN
Sanyang
Yuzawa
<Gizen
Delta
CCIVO
HKC
Kinghun
Silicon Valley Wizard
Golden Profit
Xindonglin
Dance Technology
Question 8: Computer What are the main protection functions of the power supply The main protection functions of the power supply is over-voltage, over-current protection of two functions. The relationship between the two is: any kind of power supply in the event of a failure, there is a possibility that the output voltage or output current out of control, in order to make the user's load is not damaged, the power supply is generally equipped with over-voltage and over-current protection. Some loads such as resistive loads, when the power supply failure, the voltage on the load may rise sharply, and the current value of the rise may not exceed the value of overcurrent protection. In this case, it is appropriate to use over-voltage protection, such as working at 50V, the voltage protection value can be adjusted to 55V, if the power supply failure as long as the voltage rises to 55V, the power supply will automatically cut off the voltage output. When some loads are capacitive loads, due to large-capacity electrolytic capacitors are connected in parallel, when the power supply fails, the current may rise significantly, while the voltage rise is not very obvious, then the power supply internal overcurrent protection components will be the first to start, the power supply will automatically cut off the output. Over-voltage protection value in the panel has a potentiometer, can be set manually. The overcurrent protection value can not be set manually, the machine has been set dead, generally 1.2 ~ 1.5 times the rated current. It should be noted that the over-voltage protection will start immediately and quickly, over-current protection has a delay of about one second. This is because such as power supply normal operation, such as power supply loads occur suddenly short-circuit, the power supply output of the instantaneous current is several times or tens of times the rated current value, can be regarded as a current shock, far more than the value of the overcurrent protection, but at this time do not want the overcurrent protection to work. And hope that the short circuit is lifted, the voltage automatically return to normal. Therefore, in the design of overcurrent protection, to avoid sudden short-circuit current impact, and only consider the length of the output overcurrent reaches a certain value before starting overcurrent protection. Over-voltage and over-current protection is for faults within the machine, so since it occurs, the power supply should not be automatically restored. If it must be reproduced, the machine must be turned off and then turned on again. The short circuit protection, current alarm, short circuit alarm function is the face of the user, if the current has dropped, short circuit has been eliminated, the relative alarm will automatically lift, the voltage will automatically return to normal
In addition to the above two kinds of protection and power options in the screen saver.
The power supply of a computer is usually the same for all three functions.
Individual powerful power supplies are also equipped with: OVP (Over Voltage Protection), UVP (Under Voltage Protection), OCP (Over Current Protection), OPP (Over Power Protection), OTP (Over Temperature Protection) and so on
Question 9: What's the best thing about the 80plus power supply? First of all, in the energy conversion rate through the strict conversion rate test 80PLUS power than ordinary power supply has a higher conversion efficiency, power more energy efficient, can directly save consumers a lot of electricity expenses.
Adoption Oh
Question 10: How many kinds of power supply led lights, what is the difference Question: What is the difference between the power supply of the LED lights and the driver power supply The so-called power supply refers to the source of the power supply, with a meter can be measured to the output voltage. The so-called driver is a power conversion circuit, will be a fixed form of power conversion into a different voltage or / and a different form (refers to the AC or DC) of another power supply, supply a specific power needs of electrical appliances to use. So the driver becomes a power source itself after connecting to a power source. The power adapter commonly used in electronic products is also an external driver for electronic products. LED chip is working in the low voltage DC, generally need a power driver to provide stable voltage and safe current. LED lamp driver has a built-in, there are also external. LED lights have been built-in driver on the specified use of power (such as AC mains, battery, etc.) can be used on the connection. Need external driver LED lights should be added with the appropriate power adapter (or external driver) to the original power supply (such as utility, battery, etc.) to provide the LED chipset to meet the requirements of the work of the power supply.