Multiplying pulse widths circuit
Posted on Mar 27, 2013
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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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The receiver will accurately condition a wide range of light inputs at up to 10 MHz data rates....
Al's positive input is biased by the thermocouple. Al's output drives a crude V — F converter,...
Sound detected by electret microphone MIC1 is fed to IC1"s input through resistor R2, and...
A designer often needs to know the value of the internal resistance of a battery. Quite a few...
Argon and krypton (rare gas) ion lasers find applications in many diverse fields including (1)...
DC Motor Control Using A Single Switch this simple circuit lets you run a DC motor in clockwise...
This is a simple design schematic circuit for phase control circuit. The circuit can be used to...
This is a simple JFET input buffer that goes into a clean boost based on the old Electro-Harmonix...
This presence detector or proximity sensor circuit reacts in presence of any conductor object...
The transmitter circuit described here has an extra RF power amplifier stage, after the...
Above, the saturation region starts at the knees on the left. We`re interested in curves for...
Fluorescent tube is connected in the LC resonant circuit composed of L2 and C9. Bidirectional...
There are also other methods of coupling signals from one stage to another. Transformer coupling...
I found the following schematic from online sources. It’s about generating and launching ions. I...
1.53 voltage controlled gain amplifier FET connected between the two inputs to the op amp as...
AC arc welding machine transistor load path of the power from the second circuit is shown. The...
CD4069 unit structure of FIG. 2-5 (a) shown below, it is composed of two abutment surfaces into...
CJ-12 Excitation regulator is suitable for a capacity of 250kW or less automatic excitation...
Many times for various reasons we forget or can not water the plants that we have in our homes....
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