V-shaped torque motor speed control circuit
Posted on Mar 28, 2007
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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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This is a four-channel temperature measurmet adapter that works without external power supply. It...
This project is useful if you wish to experiment with absolute phase, or are just interested in...
This circuit is a static SCR switch for use in a dc circuit. When a low power signal is applied...
This circuit is often used by amateur radio operations, shortwave listeners, and other operators...
The circuit uses a Hall-effect sensor, which consists of an IC that resides in a small gap in a...
To boost the output power of low power FM broadcast band exciters, a number of these are...
The affection of the ability accumulation is a Tamura 3FD-410 5V bifold primary/dual accessory...
This project allows one to build a very high quality version of the Stax SRD-7MkII headphone...
In the old days it was very simple to use the parallel port of a standard PC and program just...
Voltage to be sampled is applied to the input which is one end of R2 (100K linear taper...
A very simple circuit forexperiments with AT90S2313, 2x16 LCD display and 4x4 keypad. The clock...
Because of the high rhythm of peoples lives. Tense, intense competition, many people suffering...
Figure (a) shows the output amplifier circuit 170W at 4 loads; LM4651 is a former circuit class D...
Figure 1-89 is an example of loudness control circuit. Potentiometer from the ground 30% of the...
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