bidirectional, variable-speed motor control
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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 article discusses several opamp-based headphone amplifier circuits, including suggestions...
Take strobe-flash pictures the instant a pin pricks a balloon, a hammer breaks a lamp bulb or a...
So the concept here is pretty simple. I wanted to mount a microphone on a stick with an LED and...
The pulser is intended to switch the mains voltage on and off at intervals between just under a...
A matching Yamaha T-760 tuner. It sounds (and obviously looks) great with the A-760. The cost was...
The PB1009K is a silicon monolithic IC developed for GPs receivers. This IC integrates a full VCO...
This circuit is intended to let the user turn off a lamp by means of a switch placed far from...
Derating is the method of decreasing a devices operational limits as temperature is increased, in...
This 18 dB gain amplifier was built Manhattan-style to evaluate the Linear Technology LT1253 dual...
So there is a chance to use them in combination with a condenser microphone amplifier for a VLF...
The transmitter we recommend to build is quite simple. It can even be built by a beginner....
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