【正文】 a multiple noise filter link after connected to exchange work, so as to achieve the purpose of energy feedback work, back to the grid electricity generating energy reached 97%, and effectively save electric energy. Second, energy feedback unit matters needing attention , energy feedback unit and its connected device internal have endanger the personal safety of high pressure, wrong operation or improper installation may lead to personal property loss, so that the proposed by specially trained personnel installation operation. , installation and wiring, in order to ensure the safe, please make sure to energy feedback unit and connected to it inverter power supply all disconnect and waits for 5 ~ 10 minutes, stay inverter internal capacitance stored in electricity discharge is finished, all can only operate. , energy feedback unit and converter as close as possible to the farthest distance, do not exceed 2 meters. , because energy feedback unit interior special design allows the user can not consider the grid sequence, namely: energy feedback unit of A, B and C terminals need not to the grid A, B and C or frequency converter input R, S, T onetoone. But connection request when energy feedback unit of A, B and C terminals must and inverter munication input terminals R, S, T directly connected, can not through any intermediate switches or contactors, also can not connected to other ac circuits. , energy feedback unit DC (+) terminal and converter DC bus is connected, DC () and converter DC bus negative connected the two cable advice adopting soft cable, and stranded inner connection, in order to reduce radiation. , located on the radiator PE site wiring screws, please connect real reserve, could not connect grid neutral (neuter line). , energy feedback unit designs for natural cooling way, so he asked energy feedback unit within the fluctuation, left 100mm 30mm inside cannot have other things influence the air flow shade. Third, energy feedback unit applicable occasions , energy feedback unit used in potential type load such as: oil pumping unit, mine hoist, etc。 PUSH 39。 unit begin implementation of, that is to say: the system39。 is not 39。s data lines will be referred to as data bus, all the line of control devices known as control bus. Singlechip at internal or external memory and other devices have memory cells, these memory cells to be assigned addresses to use, the allocation of addresses is of course to give the form of electrical signals, and because memory cells are more so for address the allocation of more lines, these lines were known as the address bus. Second, data, address, mand: The reason why these three together, because these three are the essence is the same figure, or are a string of39。s of dedicated processor, whereas normal type exfactory price dropped to $1, the highestprofile [1] type was only ten dollars. Contemporary SCM system no longer only in LuoJi environment, development and use of special embedded operating system is widely used in the whole range of singlechip microputer. While in as a handheld puters and mobile phones key processing of highend microcontroller even can directly use the special Windows and Linux operating system. Singlechip processor more than dedicated suitable for use with embedded system, so it has gained the most applications. In fact microcontroller is the world largest number of the puter. Modern human life that are used in almost every pieces of electronic and mechanical products will be integrated have microcontroller. Mobile, telephone, calculator, home appliances, electronic toys, PDA and mouse and so on puter accessories are equipped with 12 department microcontroller. The PCS in also will affect many microputer in the work. Cars equipped with more than 40 department general singlechip microputer, plex industrial control system even there may be hundreds microputer in working at the same time! The number of MCU is not only far more than PCS and other calculation bined, and even more than the number of human beings. SCM is also called monolithic micro controller, it is not plete a logic function chips, but it is a puter system integration to a chip. The puter equivalent of a micro puter, and pared, microcontroller lack only the I/O devices. General speaking: a chip became a puter. Its pact size, light quality, cheap, for learning, application and development provides the convenience. Meanwhile, learning to use a single chip puter is knowledge of puter principle and structure of the best choice. SCM internal also use and puter functions similar module, such as CPU, memory, parallel bus and hard disk storage device functions are the same, the difference is its relative performance all these parts of our home puter weak, but the price is much lower, usually less than 10 yuan can... Use it to do some control electric appliance category is not very plicated work is sufficient. We use now roller washing machine, smoke exhaust hood, VCD and so on the home appliance inside can see the figure! ... It was mainly used as a core part of the control part. It is a kind of online realtime control puter, online is site control, need is strong antijamming ability, low cost, this also is and offline puter (such as household PC) the main difference. A single chip puter is by program running, and can be modified. Through the different program realization of different function, especially the unique some special function, this is another device needs to spend effort can do that, while some others are great effort also hard to do. One is not very plicated function if use in the United States during the 1950s development of 74 series, or from the 1960s CD4000 series these pure hardware to fix words, circuit must be a large piece of PCB board! But if if use American 1970s success on the market series