The motor vehicle is the automotive of no emission at present, as the means of transportation of green, will bring the huge change to human society in the 21st century. And the direct-flow brushless electric machine relies on its fine characteristic to already become major technology and developing direction of the electrical machinery field of mo
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tor vehicle. The of good performance brushless electric machine system is due to the of good performance control module, and the characteristic of the control module depends on the characteristic of the electric power supply to a great extent, so the high-quality power supply power system occupies quite important position in the whole motor vehicle system. The control module of the direct-flow brushless electric machine is a numerically controlled electronic system which adopts the microcontroller. The switching power supply that is controlled on the basis of UC3842 high-performance electric current mode PWM generator is suitable for applying to this kind of system. Originally design realizing the complete segregation exported and input through the small-scale high-frequency voltage transformer, not only has raised the efficiency of the power, has simplified the peripheral circuit, also reduced cost and volume of the power. The voltage stabilization of power supply, the ripple is small, incessant, reliable performance. Single-end anti exciting type typical structure such as Fig. 1 of varying. Single-end means the magnetic core of the voltage transformer only works on the collinear side of magnetic Hysteresis; It means when the gas switching tube is turned on, the stored energy in the primary coil that anti exciting, and the secondary winding is obstructed; When the gas switching tube is shut off, the energy in the primary...
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of....
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is....
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to....
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This....
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the....
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,....
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the....
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power....
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
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