The Brusless DC motor of permanent magnetism is a new electrical machinery with new principle, innovative technology, new method at present, it is by the Brusless DC motor body of permanent magnetism BLDCM, trochanter position transducer RPS And control device CU Three parts of constituent electromechanics` integrated systems. This electrical mac
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hinery has overcome a great deal of drawbacks of the brush motor, so, develop quickly in recent years, have already applied to a lot of fields. The umbilical power mainly provides the electric energy for various chips of the control device, adopt, give control device chip to power after the multi-channel voltage output through high-frequency the intersection of DC/DC and isolated the intersection of switch and source transformations the intersection of system and external input voltage generally. Umbilical main input is minor, but require simple and reliable, good stability. The traditional switching power supply adopts the discrete components and parts, shortcoming of it is bad to store in circuit complicatedness, inefficiency, reliabilitying etc. U. S. A. PI Power Integration The specialized integrated chip of TOPSwitch series switching power supply that the company introduces can well solve these problems, make frequency as 100kHz on it, the peripheral circuit is simple, electromagnetic disturbance is small, the cost is cheap, can reduce volume and weight of the control device effectively, and strengthen the reliability of system work. Originally design choosing TOP224Y chip among themming forms the anti exciting type switching power supply of single-end as the control device power. The anti exciting type converter of single-end is also called the energy-storing type converter of the inductance, its voltage transformer...
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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