A novel that traveled back to 1998

Flyback design involves many aspects. The following is a detailed introduction: ##1. Design input The design input can be defined by the final application or selected by the designer. The main parameters include, but are not limited to, input and output voltage, power, ripple factor, and operating mode. For example, in some design cases, the Discontinuous Conduction Mode (TCM) was chosen for the application because of its higher stability and efficiency, with a ripple factor of 1, a fixed maximum duty cycle of 50% to reduce stress and equal use of the MOS and the semiconductor, and a switching frequency of 160KHZ. At the same time, the estimated efficiency of the conversion will be defined (about 80% is common for low-power flyback-type convertors), and then the controller integrated circuit that meets the requirements will be selected according to these input, such as the MP6004 of the MPS (a flyback-type controller that only runs in DMC-mode and has a primary side regulation function to reduce the number of external components). ##2. Calculation 1. ** Calculating the Primary Inductive Value (Lp)** - The worst case scenario would be that the power output of the power source is at full power with the minimum input voltage and the maximum duty cycle. The value of the primary inductors can be calculated according to the relevant formula, and the limit of the maximum inductors can be determined by the given input. 2. ** Calculating turns ratio (nS1)** - In the worst-case scenario of the maximum input voltage (UIN) and the maximum duty cycle (D), the forward voltage drop of the added voltage of the junction made the calculation more accurate, and the turns ratio was estimated using a specific formula. ##3. Metal-Optic Calculation 1. ** Calculating the maximum voltage ** - When calculating the maximum voltage that the switch must withstand, the relevant formula can be used, and a safety margin of 20%(such as V DS_MAX) is usually added to ensure the safe operation of the switch. 2. ** Calculating the maximum current ** - A specific formula was used to estimate the maximum current, and then according to the controller specifications (for example, in the MP6004 controller specifications, the Vds_MAX of the MOS tube was 180V, and the maximum current was 3A), it was determined whether the selected MOS tube could be safely used in the application. ##4. Rectifying Diode Calculation 1. ** Calculating the maximum voltage that can be withstood ** - Use a formula to calculate the maximum voltage that the circuit can withstand, such as VD1_PK = VOUT+VIN_MAX/n (where n is the turns ratio), and then add a certain percentage (such as 40%) of the safety margin to determine the maximum reverse voltage. ##5. Operating Principle of Flyback Converters 1. ** During TON ** - With the Metal-Coupled Devices in the on-state, the current flows from the input through the primary side and charges the coupled inductors in a linear manner. 2. ** During tOff ** - With the Metal-Coupled Devices in the off-state, the Coupled Inductor begins to demagnetize through the Diode, and the current from the Inductor charges the Output Condenser and powers the load. ##6. Flyback Converters Design 1. ** Flyback Transformer ** - It can transfer energy from the primary to the secondary. It will store the energy in the primary magnetic field and transfer the energy to the secondary magnetic field after a certain period of time. It is composed of at least two inductors, the secondary coil and the primary coil. It is wound in the coil frame with an iron core in the middle. The magnetic core determines the magnetic flux density (an important parameters for power transmission). 2. ** Switch ** - The function is to turn on and off the primary circuit, so that the transformer is energized and deenergized, and is controlled by the PM signal from the selected controller. 3. ** Rectifiers and Controllers ** - The voltage on the secondary winding is rectified into pulsating direct current by the rectify, and the load can be cut off and connected from the secondary winding. The rectified voltage is filtered by the capacity to increase the direct current level for the intended application. Most of the time, the Flyback Converters need a buffer to resist the voltage spike on the switch or the switch. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The synonym of cutting is to cut off and learn from each other's strong points to offset one's weak points, while the antonymy is to be complacent. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The contact numbers of Zhangpu County Chihu Central kindergarten were 13960082129 (Director Chen) and 13605020127 (Teacher Lin). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

There were many reasons why Pu Yi sold jade. At the end of the Qing Dynasty, the government was on the verge of collapse and faced internal strife. The national treasury was empty due to war and reparations. In order to make up for the deficit in the national treasury and pay the few loyal officials, Puyi chose to sell jade. For example, he had "stolen" the best imperial jade pearls from his own treasury and sold them. He found the famous "Jade King Qian Baiwan"(Tiebaoting) in Beijing, and Tiebaoting bought the string of court beads at a price that Pu Yi was satisfied with. In addition, after Pu Yi was expelled from the palace, his own financial situation was unstable. He was used to spending money extravagantly. After leaving the palace, he spent money like water to buy clothes, accessories, etc. He might also need to sell jade to maintain his living expenses. For example, when he went out for a meal and wanted a coat but did not bring any money, he used the jade pendant he carried with him to exchange for a coat. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

If it was the Mechanical Ares Laboratory in Dungeon Fighter Online, after completing the quest "The Place of Truth", characters above Level 110 could enter through the NPC "Seven God of War Curio". The entrance material required was the "Mechanical Ares Laboratory Entrance Pass". Through the NPC "Seven God of War Curio" in the normal channel, they could form a high-level Dungeon Party. If it was the Mechanical War God Legion Dungeon, after clearing the side quest "(Codename Galboga) Remnant Distortion 2", players could enter the "Codename Galboga" channel. Players could enter the "Codename Galboga" channel with a reputation of 31,489. Players could participate in the content through the NPC "Curry 0" in the "Codename Galboga" channel. In addition, after completing the quest, players could walk down from the "Namenlos" area and see the "Seven Mechanical War God Laboratory" dungeon. They could also enter from there. Hurry up and click on the link below to return to the super classic "Lord of Mysteries"!

The following are some ideas for designing the kindergarten booth renderings: ** 1. Confirm the theme ** 1. ** Fairy tale forest theme ** - The color was mainly green, and natural elements such as fake trees and vines could be added as decorations to create a forest atmosphere. Set up some simple scenes in the stall, such as tree holes, so that children can play the role of elves, small animals, or forest guardians. They can carry out activities through storytelling and role-playing. 2. ** Technology Exploration Station ** - Modern technological elements could be added, such as simple programming toys and robot models. The overall design style was modern and simple. It could use some cool colors such as blue and silver that represented technology. It could use lines and geometric figures to construct space and reflect the sense of technology. 3. ** Art Creation Area ** - There must be enough space to place all kinds of artistic materials and tools, such as colored clay, brushes, paper, etc. In terms of color, you can choose bright and rich colors to stimulate your child's creative inspiration. The layout of the booth should be easy for the children to create freely. Some display shelves could be set up to display the children's works. 4. ** Little gourmet ** - The design should pay attention to hygiene and safety, and warm colors such as yellow and orange could be used. A simple cooking area was set up, equipped with tools and materials for making fruit platters, simple sandwiches, and other food. At the same time, there must be an area to display the finished food and a small table for the children to share the food. 5. ** Little Guardian of the Green ** - The main color was green, and some recycled materials could be added for decoration, such as flower pots made of used tires. There would be a garbage sorting game area, with different colored trash cans to mark different types of garbage, and a plant planting area to display some small plants suitable for planting in the kindergarten. ** 2. Consider the space layout ** 1. ** Event Space ** - Make sure there's enough space for children to move around freely, whether it's role-playing, operating tech toys, creating art, or making food. 2. ** Exhibition Space ** - Every stall should have a display area for items related to the theme or the children's work. For example, the science and technology exploration station displayed the simple programming results written by the children, and the art creation area displayed the children's paintings and handmade works. 3. ** Storage space ** - For stalls that required materials and tools, such as the art creation area and the small gourmet stall, a certain amount of storage space should be reserved to store unused materials, tools, and unfinished works. ** 3. Pay attention to color matching ** 1. ** Attract children ** - Use bright, bright colors because children are usually more interested in colorful things. However, one must also pay attention to the coordination of colors and avoid overly messy color combinations. 2. ** Reflect the theme ** - For example, green was the main theme for environmental protection, blue and other cool colors could be used for science and technology theme, and warm colors could be used for food theme to strengthen the theme through color. ** 4. Add interaction elements ** 1. ** Game Elements ** - For example, when designing the renderings of the garbage sorting game at the Little Guardian booth, one had to consider the placement of the game props and how to guide the children to participate in the game. 2. ** Operation Area ** - For example, the programming toy operation area of the science and technology exploration station, the creation workbench of the art creation area, the cooking table of the little gourmet, etc., had to be designed to be convenient for children to operate, and to match the child's height and operating habits. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

There was a novel called " I Came Home to Farm After I Transmigrated from the Apocalypse ", which told the story of the protagonist who was still fighting against the mutated monster one second ago, and then transmigrated back to the time before he died. There was also a novel where the protagonist was reborn three months before the zombie outbreak. The protagonist was unprepared when the zombie outbreak occurred in his previous life. After his rebirth, he began to actively prepare supplies and so on. It also involved the plot of transmigrating from the apocalypse.

It has been rainy lately. <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>

The actress who played Wei Zhao's sister in " Long Run Water " was Guan Xin, whose original name was Liu Yinglun. While waiting for the TV series, he could also read the exciting content related to this site!

The following are some recommendations for novels where the main character is a doctor: "Doctor: Helping a beautiful woman remove her silica gel barehanded at the beginning of the game!" "Rise of the Great Doctor","Great Martial Doctor","Strange Descent: I Became a Doctor, Doctor Ling Ran, Full-time Chinese Doctor, This Doctor Is Too Awesome, The Descendant of the Divine Doctor Breaks into the City, The Divine Doctor's Hands (The main character Zhang Yang transmigrated to 1998 and has miraculous medical skills to save many people),"Unparalleled Medical Skills"(The male lead Hua Feng is a child from the countryside),"Doctor Nan's Road to Courting His Wife","The Days of Begging Dr. Shen to Pretend to Be His Boyfriend"(The male lead Shen Yihan is the head surgeon),"The Golden Doctor of Rebirth"(The female lead is a doctor with superb medical skills. She is reborn as the youngest chief surgeon in the body of a young nurse). <a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>