Relationship between China's three major operators

There have been seven major telecom operators in the history of New China: the first was telecommunications, and later Mobile and Weitong were separated from telecommunications, and then Unicom, China Netcom, Jitong and China Railcom were all established by themselves.

In 2002, it merged into 6 operators: Later, the 10 branches of Telecom North and Netcom and Jitong merged into New Netcom.

In 2008, it merged into the current 3 full-service operators:

Xin Telecom = Telecom + China Unicom C network + Weitong basic telecommunications business;

New Unicom = Unicom G network + Netcom;

New mobile = mobile + Railcom public network;

This week, China's three major telecom operators announced their results last year. It is not difficult to find out from the performance that an apple has stirred up the market of China's 1 billion mobile phone users.

China Unicom and China Telecom rely on iPhones and other mobile phones to steal a large number of users from China Mobile, and they have also paid the price of “only earning money and not making money”. The total profit of the three companies reached 146.5 billion yuan last year, which is only 70% of Apple's profit for the same period (208.1 billion yuan). An apple made the Chinese telecom market structure tilted last year, and the market leader China Mobile was under pressure.

Although China Mobile's net profit has reached six times that of Telecom and China Unicom, the gap between the three companies in 3G users has gradually decreased. In terms of speed, moving the elephant is getting slower and slower.

The data shows that China Mobile's operating income in 2011 was 528 billion yuan, exceeding the sum of revenues of China Telecom and China Unicom (244.493 billion yuan and 209.17 billion yuan respectively), but the growth rate of 8.8% was behind the other two (11.7 respectively). % and 22.1%).

In terms of profit, mobile net profit was RMB 125.9 billion, and net profit reached six times the total profit of telecom (16.604 billion yuan) and China Unicom (4.23 billion yuan), although the increase of 5.2% was the highest in the past three years. However, it is still in a disadvantageous position among the three companies. Telecom and China Unicom are 10.5% and 20.0% respectively. This has a lot to do with the introduction of the iPhone by rival China Unicom, which has greatly diverted existing mobile users.

From the data point of view, the number of 3G users of the three companies has increased by more than 140%. Except for mobile, the number of 3G users of the other two operators has reached or exceeded 20% of the total number of users, and China Telecom, which has obtained the latest mobile license, 3G users account for the highest proportion. Although the Apple iPhone has become a powerful weapon for Unicom to attract users, the company has paid the price of a substantial reduction in net profit.

From the data point of view, China Unicom's mobile phone subsidy in 2010 was 3.172 billion yuan, almost doubled in 2011 to 5.79 billion yuan. Moreover, in order to make up for the loss of the exclusive advantage of the iPhone, China Unicom rushed to the “thousand-yuan smartphone” market at the end of last year, but paid a heavy price for the mobile phone subsidy. The fourth quarter had a rare loss of 36 million yuan, much lower than the market expectation of 1 billion. Yuan net profit.

China Unicom's "bad example" has also driven the three major telecom giants to increase subsidies for mobile phone users. Last year, China Mobile's mobile phone subsidies were 17.2 billion yuan, and China Telecom's mobile phone subsidies were 15.6 billion yuan. China Unicom's 3G sales expenses last year totaled 13.1 billion yuan in mobile phone subsidies, of which 3G mobile phone subsidies totaled 5.8 billion yuan.

China Mobile, which is in a hurry, is still actively communicating with Apple and hopes for 4G. However, some brokers believe that even if China Mobile is willing to introduce Apple's iPhone and 4G, it will help China Mobile to retain its market share, which may have lost significantly. The price may be a 20% to 30% decline in profits. So it seems that when China's three major telecom giants can get out of Apple's haze?

High Voltage Power Modules

The CCP1000 series high-voltage power supply module is a single-phase 220Vac input modular high-voltage power supply. The whole series adopts unified small and compact aluminum chassis with the designed output power at 1KW, and the output voltage levels at 5KV / 10KV / 20KV / 30KV / 40KV / 50KV for selection.


Top View Of Ccp1000 Modular Hvps


Unlike common high voltage power modules that have a fixed output or only a limited range of voltage adjusting, the CCP1000 series adopts resonant inverter with PWM control. The output voltage and current of the high-voltage power module can be continuously adjusted from approximately 0 to the rated value, that is, a constant-voltage and constant-current type modular high-voltage power supply. Small potentiometers installed on the exposed circuit board on one side of the chassis can be adjusted by electric screwdriver to adjust the output voltage and current.
The HV power module is also equipped with a DB9 interface to facilitate the bus control of embedded installation equipment. Customers can apply 0-10V signals and dry contact signals to the interface according to our interface definition to achieve comprehensive control and monitoring functions on the power supply, like high voltage start / stop, output setting and reading.

The CCP1000 high voltage power modules are equipped with complete protection functions, which can deal with sparking, short-circuit, and overload conditions. With the discharge protection circuit recommended by iDealTek-Electronics, the high-voltage module can also cope with conventional capacitor charging and discharging conditions.

At present, the high voltage power modules are mainly used in air or oil fume purification, capacitor charging and other application fields that require a high-voltage power module that can be embedded installation.

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Yangzhou IdealTek Electronics Co., Ltd. , https://www.idealtekpower.com