5G (fifth generation communication technology) commercial is accelerating, and the fastest spread is expected to be in the 2018 PyeongChang Winter Olympics. As the leading giants, Huawei, Ericsson, Nokia & Alang, ZTE and other top four communication companies are not only fighting for the scene in the terminal experiments, but also the basic core solutions. According to media reports, in the discussion of the 5G short-code scheme of the just-concluded 3GPP RAN1 87 conference, the Polar Code scheme, which is mainly promoted by China Huawei, became the 5G control channel eMBB scene coding scheme (signaling coding). The data shows that coding and modulation are the most esoteric part of wireless communication technology and are known as the crown of communication technology. This time, the Polar code won the victory of the control channel short code (uplink and downlink), and achieved a historic breakout in the case where the uplink and downlink short codes of the data channel and the full-length code scheme both cost the US LDPC camp. It is understood that the polarization code was first proposed by Professor Erdal Arikan of Bilken University in Turkey in 2008. It is the only channel coding that can theoretically prove to reach the Shannon limit and has practical linear complexity coding and decoding capabilities. technology. Additional reading: 1. The development of TD-LTE technology, China's communication technology has become one of the mainstream technologies in the world for the first time. However, its core long code encoding Turbo code and short code tail biting convolutional code are not original Chinese technologies. 2. The coding camp from 3G, 4G to 5G is mainly the LDPC represented by the United States, the European Turbo represented by France and the Polar of China. 3. Europe's Turbo 2.0 lost momentum in the 5G era and became the direct PK of LDPC and China's Polar. 4. LDPC is led by Qualcomm, and its supporters include Intel, Samsung, Nokia, Verizon and others. Polar is led by Huawei and ZTE. Supporters include vivo, OPPO, Xiaomi, Alibaba, Lenovo, China Unicom, China Telecom, China Mobile, Datang Telecom, Spreadtrum, China Mobile Research Institute, Xinwei Communication, Coolpad and the other side of the strait. Compatriots: Acer, MediaTek, Taiwan University.
Dc Gear Motor can be defined as an extension of Dc Motor which already had its Insight details demystified here. A dc gear motor has a gear assembly attached to the motor. The speed of motor is counted in terms of rotations of the shaft per minute and is termed as RPM .The gear assembly helps in increasing the torque and reducing the speed. Using the correct combination of gears in a dc gear motor, its speed can be reduced to any desirable figure. This concept where gears reduce the speed of the vehicle but increase its torque is known as gear reduction.
Application field: usually used Electronic door locks, shutter motor, home audio equipment, sweep the floor machine robot
Features: dc gear motor drive precision, small volume, large torque, low noise, durability, low energy consumption, customized power design,easy installation, easy maintenance;Simplify design and save space.
Method of use: the best stable in horizontal plane, installed on the dc gear motor output shaft parts, cannot use a hammer to knock,knock prone to press into the dc gear motor drive, may cause damage to internal components, and cannot be used in the case of blocked.
Operating temperature range:
Dc geared motors should be used at a temperature of -10~60℃.
The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
If a geared motor is used outside the prescribed temperature range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.Depending on the temperature conditions ,it may be possible to deal with them by changing the grease of the motor's parts.Please feel free to consult with us about this.
Storage temperature range:
Dc geared motors should be stored ta a temperature of -15~65℃.
In case of storage outside this range,the grease on the gearhead area will become unable to function normally and the motor will become unable to start.
Service life:
â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
when it come to volume production,we're a major player as well .each month,we rurn out 600000 units,all of which are compliant with the rohs directive.Have any questions or special needed, please contact us, we have the engineer group and best sales department to service to you Looking forward to your inquiry. Welcome to our factory.
Dc Gear Motor,Gear Box Motor,Gear Reduction Motor,Small Diameter Dc Gear Motor Shenzhen Shunchang Motor Co., LTD. , https://www.scgearmotor.com
