Which of these two desktop power supplies is better? Zhenhua Iceberg Kingdee Kangshu i85

Zhenhua Power is a second-line power supply manufacturer in Taiwan. In fact, they are not "big" factories, they are not as good as Delta, Lite-on, Efficient, and Kangshu in terms of quality, and they are not as good as Qimeng, FSP, Xinju, Qiaowei, and Haiyun in terms of scale, and of course they are much better than the Great Wall and Huntkey in China. In the mainland, it has been doing a lot of work.

It has several collections: the "Platinum" series is the 80plus white label; The "Kingdee" series is gold medal through 80plus. The "Flagship" and "Diamond" series are bronze medals through 80plus.

Gold, silver, bronze, and white cards are not certified) The Kingdee series is the best. Aviation Kingdee uses "aviation connector", which has nothing to do with aviation, it is the name of a type of plug specification, it is called "aviation connector", and the electrical performance is a little better than the plastic P-type connector in the computer. Iceberg Kingdee is an ordinary plastic plug.

However, this has little to no effect on actual performance. ps: At this grade of Zhenhua power, don't buy products above 1000w, it's not a high-end brand.

Personally, I think that if you choose a Kingdee in the range of 400w and 800w, it will be about the same.

To add that the platinum series has passed the platinum gold medal, not the white label, the current 80plus has the highest certification, of course, there is also the titanium gold medal However, it seems that there is no product to conquer this standard, the platinum series is the most high-end series of Zhenhua, Kingdee is the second Kingdee below the main cost performance Kingdee above including Kingdee is the whole Japan chemical capacitor The material is very good, and the others are Taiwanese capacitors The quality is also very good In recent years, the same wattage power supply has shrunk compared with the previous same wattage power supply workmanship (previously known for power overclocking), But it is still all Japan Chemical Capacitors (the world's top capacitor manufacturers), but the warranty remains unchanged As long as it is used within the rated power, there should be no difference It's just that overclocking is not as good as before, and the warranty of this brand is relatively long (5 years) It should still be safe to buy the power supply with high conversion efficiency, and the heat is very small The gold medal I use now is basically not hot It is cool to use it at any time (the power supply is lowered) It is recommended to Kingdee or Platinum Butterfly (except for the dark version, the dark version is basically a battle disc with the name of Kingdee, but the conversion efficiency is higher than that of the war disc).

Great Wall Power is still a brand.

The device that can continuously produce the highest current is called the power supply.

The power supply is the electromotive force source that can continuously output electrical energy!

The Law of Energy Conversion! All kinetic energy, thermal energy, chemical energy can be converted into electricity!

The function of the power supply is to provide a stable voltage to the electrical appliances required. Since all kinds of electrical appliances are now required to work under a stable voltage, the power supply must not only provide the required voltage, but also provide a stable voltage.

The power supply broadly includes the power supply and the power supply circuit, and the common power supply is the 220V alternating current provided by the mains, as well as various batteries.

Common power supply circuits include various regulated power supplies, uninterruptible power supplies, etc., these power supply circuits should process the voltage provided by the power supply into the voltage required by the electrical appliances, and the treated voltage is stable. Therefore, the power supply circuit is a very important part of the power supply, and all the electrical appliances must have a good power supply circuit in order to work properly.

When buying a computer power supply, you must pay attention to the following four power supply parameters, which is very helpful for you to choose a high-quality power supply.

1 The weight of the power supply.

Generally speaking, a good power supply shell is generally made of high-quality steel, with good material and thick quality, so heavier power supplies are made of better materials. The parts inside the power supply, such as transformers, heat sinks, etc., are also heavier.

The heat sink used in a good power supply should be an aluminum or even copper heat sink, and the larger the volume, the better the heat dissipation effect. Generally, the heat sink is made into a comb, and the teeth are deeper, the more open and thick, the better the heat dissipation effect. Basically, it's hard to see the heatsink without taking the power supply apart, so the intuitive way is to judge it by weight.

A good power supply will generally add some components to improve the safety factor, so the weight will naturally increase. Inferior power supplies will save some capacitors and coils, and the weight will be lighter.

2 Power transformer.

The key part of the power supply is the transformer, and the simple way to judge is to look at the size of the transformer. Generally, the position of the transformer is in the two heat sinks, according to common sense, the inner diameter of the transformer coil of the 250W power supply should not be less than 28mm, and the 300W power supply should not be less than 33mm. After passing through the transformer, the current is output through the rectifier output coil.

At the current output end, you can see the rectifier output coil, most manufacturers use the code 10262 and 130626, the rectifier output coil of the 250W power supply should not be lower than the rectifier output coil of 10262. The rectifier output coil of the 300W power supply should not be lower than the rectifier output coil of the 130626. Next to the vertical capacitor in the power supply, there will be a black bridge rectifier, and some will use 4 diodes instead.

In terms of stability, the stability of the power supply of the bridge rectifier.

3 Power supply fan.

The fan plays an important role in the heat dissipation of the configuration during the working process of the power supply. The loose piece only dissipates heat into the air, and if the hot air cannot be discharged in time, the heat dissipation effect will be greatly reduced. The arrangement of the fans plays a decisive role in the heat dissipation capacity.

The fans of the traditional version of the PC power supply above are exhausted to dissipate heat, which can ensure that the heat in the power supply can be discharged in time, avoid the accumulation of heat in the power supply and the chassis, and also prevent external dust from entering the chassis from the power supply during work. There are two specifications of fans used in general PC power supplies: oil seal bearings and ball bearings, the former is quieter, but the latter has a longer life, of course, it is better if you use a magnetic levitation fan!

4 Look at certifications.

Generally speaking, the more certified items a power supply gets, the more reliable the quality of the power supply, of course, it must be the products that have really passed these certifications, not those power supplies that are labeled with false standard certifications.

The first step is to calculate the power of all the household appliances in the house

The types of household appliances in ordinary families are probably televisions, refrigerators, air conditioners, water heaters, microwave ovens and other household appliances.

In addition, we can also directly estimate the electricity consumption of electrical equipment at home according to the construction area of the home, now the country has given the residential electricity load standard, at this stage the electricity load standard of ordinary residential buildings is 80 watts per square meter, of course, the standards of each region are not the same, here is the construction area, for example, the construction area is 100 square meters of residential electricity load is 8000w.

In the second step, we can calculate the current according to the power of the device

After knowing the power of the device, we can find out and calculate the current, or according to the formula of power calculation p uicos, to find out and calculate the current i p (ucos);

We still take a house with a construction area of 100 square meters as an example, the electricity load at this time is 8000W, that is, the power p is 8000W, the voltage is calculated according to 220V, the power factor COS we take, and the coefficient is considered according to 1, so the calculation current I p (UCOS) 8000W (220V.

In the third step, we can calculate the current according to the work of the device to select the wire

Through the above calculation, we know that the calculated current of electricity consumption of a house with a construction area of 100 square meters is about, and after knowing the calculated current, we can choose the wire according to the calculated current;

We can directly check the safety ampacity meter of wires and cables, we will know that the ampacity range of 10 square copper core wires is between 44A and 65A under the condition of laying at a normal distance through the pipe buried at a normal distance, and this current carrying capacity range can meet our needs, of course, if you choose 16 square copper core wires, there is no problem.

Through the above three steps, we can choose the wire diameter of the wire we need at home, and you can also try this method.

The first thing to do is determine whether you choose a desktop power supply or a gaming power supply, or a small case power supply, a server power supply, or a power adapter power supply, etc. At the same time, it is also necessary to determine whether the module outputs a wide output, whether the input voltage is 110V or 220V, and whether the input voltage needs a wide voltage input.

2. The maximum power output of the power supply.

Determine what the general power your load needs, generally require the output power to account for about 70% of the total power, high and low can be used to 80%, the margin is too small if the power output may be overloaded, the power supply long-term overload work has a great impact on the life of the power supply, so first of all, determine the power you need. At the same time, there are voltage requirements, current requirements, whether single or dual or multiple outputs, these must be taken into account.

3. Isolated power supply or non-isolated power supply.

The power supply is divided into isolated and non-isolated power supply, and the isolated power supply generally has a transformer, and if the human body directly touches the live parts, it must be an isolated power supply, and the voltage should be within the safe voltage range. 

4. Miscellaneous. Choosing the right power supply should also take into account the problem of heat dissipation, considering the ambient temperature of the power supply, some power supplies do not have a fan inside or the heat dissipation effect is not good; It is also a factor to consider, it is not cost-effective to buy too high; Whether there is over-voltage and over-current protection; When choosing a power supply, you should also see if there is certification, for example, some power supplies are with 80plus certification, see clearly whether it is platinum or gold, silver, bronze, etc., it is best to buy a brand of power supply, trustworthy.

Computer enthusiasts are welcome to chat.

Power supplies are divided into two categories: ordinary power supplies and special power supplies.

1. Ordinary power supply.

It can also be subdivided into: PC power supply, rectifier power supply, custom power supply, heating power supply, welding power supply, arc power supply, electroplating power supply, switching power supply, inverter power supply, AC regulated power supply, DC regulated power supply, DC DC power supply, communication power supply, module power supply, frequency conversion power supply, UPS power supply, EPS emergency power supply, purification power supply, network power supply, power operation power supply, adapter power supply, linear power supply, power controller driver, power power supply, other ordinary power supply, inverter power supply, parameter power supply, voltage regulation power supply, transformer power supply.

2. Special power supply.

Special power supply can be subdivided into: shore power supply, security power supply, high-voltage power supply, medical power supply, military power supply, aerospace power supply, laser power supply, and other special power supplies.

Special power supply refers to special types of power supply. The so-called special is mainly due to the technical index requirements of measuring the power supply are different from the commonly used power supply, which is mainly due to the particularly high output voltage, the output current is particularly large, or the stability, dynamic response and ripple requirements are particularly high, or the voltage or current output of the power supply is pulse or some other requirements.

The classification of common power supplies is:

Switching power supply, inverter power supply, AC regulated power supply, DC regulated power supply, DC DC power supply, regulated power supply, communication power supply, module power supply, variable frequency power supply, UPS power supply, EPS emergency power supply, purification power supply, PC power supply, rectifier power supply, custom power supply, heating power supply, welding power supply, arc power supply, electroplating power supply, network power supply, power operation power supply, adapter power supply, linear power supply, power controller driver, power supply, other ordinary power supply Inverter power supply, parameter power supply, voltage regulation power supply, Transformer power supply.

The classification of special power supplies is:

Security power supply, high voltage power supply, medical power supply, military power supply, aerospace power supply, laser power supply, and other special power supplies.

Power Classification:The power supply is both AC and DC.

DC power supply circuits are divided into two forms: switching power supply and non-switching power supply, and the circuits are also very different.

Switching power supplies generally do not use transformers.

Non-switching power supply is a traditional design method, and the power supply circuit mostly uses a transformer to transform the voltage and then rectify the filter.

Several components are connected to each other by wires to form a "circuit", which can also be called a "network". More specifically, a circuit is a network that can form a closed loop. A "branch" is a part of a circuit, and each component has its own branch.

The intersection of any two or more branches is called a node.

In an electrical circuit, a power supply is a device that provides electrical energy, which converts other forms of energy into electrical energy; An appliance is a device that consumes electrical energy, which converts it into other forms of energy

A power supply is a device that provides power to electronic devices, also known as a power supply device, which provides the electrical energy required by all the components in the computer. Whether the power of the power supply, current and voltage are stable or not will directly affect the working performance and service life of the computer.

Dry batteries, etc., are called power supplies. A rectifier power supply is a device that converts alternating current into direct current through a transformer and rectifier. The electronic device that provides the signal is called the signal source.

The transistor can amplify the signal sent from the front, and then transmit the amplified signal to the circuit behind. The transistor can also be regarded as a signal source for the later circuits. Rectifier power supplies and signal sources are sometimes referred to as power supplies.