Shulou(Shulou.com)06/02 Report--

This article will explain in detail what the power consumption in the computer means. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

Power consumption has two meanings, namely: 1, it indicates the loss of power, which refers to the difference between input power and output power, such as equipment or devices; 2, it is an index of all electrical equipment, which refers to the amount of energy consumed per unit time, in W.

Power consumption

Definition one:

The loss of power refers to the difference between input power and output power of equipment, devices, etc. Loss of power. In a circuit, it usually refers to the thermal energy dissipated on an element or device.

Definition 2:

Power consumption is also an indicator of all electrical equipment, which refers to the amount of energy consumed per unit time, in W. In a circuit, the power required by the whole machine or equipment. However, unlike electric lights, photocopiers do not work all the time, stand by when they are not working, and consume a certain amount of energy (they will not consume energy unless the power is cut off). Therefore, there are generally two kinds of power consumption of photocopiers, one is the power consumption when working, and the other is the power consumption when standby.

Related introduction:

Standby power consumption

In 2001, the European Union required that the no-load power loss of the rated output power 0.3W~70W is 1W; in 2005, the EU changed the standard into the rated output power 0.3W~50W with a no-load power loss of 0.3W and the rated output power 15W~70W with a no-load power loss of 0.75W. From this, we can see that the requirements for the power consumption of electrical products are becoming more and more stringent.

In order to comply with the various specifications developed by the European Union and other organizations for product power consumption, many new technologies emerge as the times require. The main idea is to enable the switching power supply to operate at a lower switching frequency when the load is very small or no load is on standby.

The UCC28600 power supply scheme provided by TI adopts the power control mode of the combination of quasi-resonant zero voltage and fixed frequency discontinuous mode in the output power range of 30% to 100%, as well as a driving capacity up to 1A, which greatly reduces the switching loss of the flyback power supply, and the working efficiency of the whole machine is more than 85%. In the 10% to 30% output power segment, the power control mode of the turn-off time modulation mode with fixed peak current is adopted, so that the dynamic load response of the power supply and the conversion efficiency of the low power section are greatly improved; at the same time, the standby control mode of hopping pulse is adopted in about 10% output power band, so that the standby power consumption is as low as 150 milliwatts.

The UCC28600 can directly drive the flyback power up to 200W, while the pin function carried by the UCC28600 can automatically turn off the PFC function in standby mode, making the user's design simpler and cheaper.

This is the end of the article on "what does power consumption in a computer mean?". I hope the above content can be helpful to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.