A Chinese professional motorcycle accessories supplier & manufacturer - JSE
best motorcycle mobile charger from Shenzhen Mingguangda Technology Co., Ltd is designed with a clear and consistent concept - render reliability, thus we never make concessions in achieving its performance and functionality. Only quality-certified materials and components are used and a variety of systems are established to ensure its quality. Customers know what to expect if they invest in this product.
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Our products like best motorcycle mobile charger are well-recognized in the industry, so is our customer service. At Mingguangda, customers can get a comprehensive and professional customization service. Customers are also welcomed to request samples from us.
The mechanical stabilizer is represented by stannikon. We often see its shadow in the production gags of various film and television dramas or large-scale programs. The main body of mechanical stabilizer is people to control its balance, so the final film quality is directly proportional to the operator's technology and experience. Before the birth of electronic stabilizer, mechanical stabilizer has occupied this market for a long time.
Electronic stabilizer (each of the three axes is driven by a motor, and the control handle is next to it)
The electronic stabilizer uses battery power supply, and then uses various electronic algorithms to achieve mechanical balance. It is a relatively novel product. At present, the scheme of three-axis stabilizer is the most mature. It was born in the sky, which has a great impact on the traditional mechanical stabilizer. In the early days, the electronic stabilizer was mainly aimed at some individual models of civil level, but today, it can support about 10kg digital projectors, and the product line is also very rich.
Various mechanical stabilizers (the principle of achieving stability through the consistency of the upper and lower center of gravity)
The mechanical stabilizer has a certain technical content and needs long-term training to be better used. Moreover, the whole system is relatively heavy. In terms of flexibility, it is not as convenient as electronic, especially when shooting in a narrow space. However, its load-bearing is relatively large. In the current professional production field, it is still dominated by this type of products.
Lighter electronic stabilizer (the larger the load, the larger the stabilizer)
The electronic stabilizer is easier to operate. As long as you have the sense of lens movement, you can start it easily. Small, light, easy to use and easy to carry, it is more attractive than the mechanical stabilizer. However, after all, it is an electronic product. Considering the working stability, many professionals are still on the sidelines.
The mechanical stabilizer can be hand-held
The mechanical stabilizer is divided into two levels. The first is the hand-held mechanical stabilizer. Its principle is actually very easy to understand. It is mainly applicable to some small machines, such as; SLR, micro single, sports DV or mobile phone, with dimensions ranging from about 1m to about 15cm. With the continuous expansion of video functions of small digital devices, handheld mechanical stabilizers have really become popular among the people. Previously, they can only be achieved by using the effects photographed by large devices such as stannikon.
Mechanical stabilizers can also be used with stannikon rocker arms
There is also a relatively professional equipment, that is, what we usually call stannikon stability system. In fact, the principle of this kind of products is similar to the above, but its configuration is more professional and load-bearing. This kind of stable system is cumbersome and needs professional personnel to operate. It is mainly aimed at the professional film and television production field. It is the oldest and most mature stable follow-up scheme at present.
The trend of electronic stabilizers is becoming smaller and lighter
Electronic stabilizers are also divided into two levels. Small hand-held electronic stabilizers are mainly used for video shooting of small devices such as SLR, micro single, sports DV or mobile phone. The whole size is much smaller and more convenient to carry than hand-held mechanical stabilizers. The characteristics of small, light, easy to use and easy to carry are destined to have a good development prospect in the future. However, compared with the handheld mechanical stabilizer of the same level, the price is much higher.
Electronic stabilizer can adapt to more use environment and shooting angle
Today, with the development of electronic stabilizers, several mainstream manufacturers have also launched three-axis electronic stabilizers applied in professional fields. At present, this kind of stabilizers can withstand the shooting of professional film cameras. At the same time, it also integrates all the advantages of easy carrying and easy use of electronic stabilizers, and the surrounding professional auxiliary accessories are relatively complete. However, the models it supports are still limited (especially the models of radio and television system), coupled with the operating habits of a large number of stannikon practitioners, I'm afraid there is still a long way to go before such products can completely replace stannikon.
Mechanical and electronic are now in a scuffle situation. However, from the current situation, the advantages of electronic triaxial have become more and more obvious in the field of handheld level; In the professional field, mechanical stability systems such as stannikon still occupy the main power, but they are not at ease. A large number of three-axis stability systems are maturing step by step.
The electronic stabilizer can also work with two people, one is responsible for moving and the other is responsible for controlling the lens angle
After making clear the difference between the two, in fact, many people already have the answer in their mind. If the budget is sufficient, the author also suggests to buy an electronic three-axis one. After all, it is easy to operate. The shooting scene can pay more attention to the lens design without worrying about technical problems, so as to make the shooting works better. The above is the whole content of this article. For more information, please continue to pay attention to pconline digital camera channel.
As shown in the figure, when the "" - "pole of the battery to be charged is connected to the circuit, first turn W1 to the bottom, then turn on the power switch, then press the an button, JA acts, and ja-1 is pulled in and locked; Ja-2 connect the charging circuit. Take 36ah lead storage battery as an example. Slowly adjust W1 to change the oscillation frequency of bt33, so as to change the conduction angle of unidirectional thyristor. Make the pointer of the ammeter about 1.8A. At this time, the charger charges the battery. With the increase of charging time, the charging current gradually decreases and the voltage at both ends of the battery gradually increases. When the voltage at both ends of the battery is 16V, JB acts and JB-1 disconnects the 220V power supply circuit; JA is released, ja-1 is unlocked, ja-2 disconnects the battery and detection circuit, and the charger stops working.
The safe charging current of the battery is generally 1 / 20 of the capacity. For example, the charging current of 36ah battery is about 1.8A. In order to make the charger universal, the power of the transformer should be larger and the output voltage should be higher. I choose the secondary output 10A / 24V transformer, which can charge the battery below 150Ah. 20A / 200V silicon stack for rectifier and 20A / 200V unidirectional thyristor. The contact current of JA relay is greater than 10a, and that of JB relay and button is greater than 5A. The integrated circuit LM324 is better than the LM741, and the genuine 74l products on the market cannot be bought. When the defective output pin does not act, there is a voltage of about 1.3V. The resistance is 1 / 2W, others are shown in the figure, and there are no special requirements.
The element is fixed in a metal casing made of iron sheet, and the volume depends on the size of the transformer. The current meter, voltage meter, power switch, button, charging "", "-" pole terminal and current adjustment potentiometer W1 are installed at the appropriate position of the front panel, and the fuse and power line lead are installed on the rear panel. Heat sink shall be installed for rectifier silicon stack and unidirectional thyristor. The components can be debugged after being welded on the copper clad plate of the universal circuit and connected correctly according to the circuit diagram. An external 16V power supply is used to supply power to the voltage comparator centered on the operational amplifier LM324. Adjust W3 to make the relay JB just act. The adjustment of the protection circuit is completed. Find a 150Ah lead-acid battery to be charged, connect it for charging, and slowly adjust W1 and W2, that is, adjust W1 to increase the charging current and W2 to reduce the charging current. When W1 is adjusted to the maximum, the charging current is 7.5A, so that the charging current is less than the operating current of the transformer. After adjustment, replace W2 with a fixed resistance close to the adjusted resistance.
4 Note that W1 must be turned to the left before charging; When charging, the battery cannot be connected reversely: slowly adjust the charging current; Turn off the power switch at the end of charging.
Imagine this: On a sunny summer day, you are riding a motorcycle on a high-speed road, the sun is shining on your face, and your hair is flying in the wind. When people think of motorcycles, a lot of people will have such a picture in their minds, instead of immediately thinking about how innovative motorcycles are, especially racing.Brammo Motorsports is a leading electric vehicle technology company headquartered in Oregon, USA. The company has been at the forefront of high-power battery innovation. Brammo has always been committed to the design and development of electric vehicles, including the award-winning Enertia and Empulse. They are actually building some of the highest performance electric motorcycles that are more environmentally friendly than gasoline-powered motorcycles.Battery management technology will continue to improve the way companies use high-power batteries for innovative designs. Today, high-power batteries have been widely used in everything from power tools and vacuum cleaner robots to forklifts and grid energy storage systems.
Brammo's high-end model Empulse R is a street car electric motorcycle with track control racing pedigree. Its Parker GVM motor can provide precise torque and speed, supporting 54hp/6,000rpm output power and 66lb-ft torque. Empulse R has a top speed of more than 100mph and was described by reviewers as "has exactly the same interventional performance as internal combustion engine models, and it also adds a driving feel that will never be achieved by internal combustion engine models."The power source of the transmission system is the Brammo Power BPM1590 battery pack. This 10kWh high-capacity lithium-ion battery can achieve 77 miles of cruising range under comprehensive urban and highway conditions. Its nickel-manganese-cobalt oxide battery can guarantee at least 1,500 charging cycles and can be fully charged in 4 hours. The core of BPM1590 adopts TI's latest battery management IC, which can not only continuously monitor the key parameters of the battery (voltage, current and temperature), but also stop charging and discharging when necessary, thus ensuring a safe customer experience.
The patented Impedance Track battery monitoring algorithm in the battery management circuit can not only monitor the amount of energy added and consumed by the battery cell, but also calculate factors such as temperature and battery aging, so that the remaining mileage can be accurately reported. Our cell balance technology can keep all independent units in the battery always at the same power level, ensuring that a certain unit will not have a weaker power than other units after a period of time, thereby maximizing the life of the motorcycle. All this will bring a pleasant, exciting and highly reliable driving experience to the end user.
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