Step-down autotransformer rotor excitation frequency starting 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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RF based Automatic meter reading, or AMR, is the technology of automatically collecting data from...
One yet circuit with the known LM3915. It does not differ in a lot of points from other...
The NE604"s signal-strength indicator section is used, based on an internal logarithmic...
The problem with using two zeners back to back in series to get symmetrical clamping is that the...
This is a simple triangle-wave generator using two IC devices and a transistor. The triangle...
Traditionally, high quality reception of VLF natural radio signals has involved driving or hiking...
Below you can see the rest of the schematic integrated with the voltage regulator from my last...
A very simple TV audio video transmitter circuit can be designed using this schematic diagram....
This was actually used to program my Digital Voice Recorder which I made for my VI sem project....
The STI5211 is a standard definition, full back-end processor for satellite set-top boxes,...
A very simple ultrasonic parking sonar electronic project can be designed using this schematic...
An increasing number of appliances draw a very small current from the power supply. If you need...
Most surviving TR-1s no longer work. Many collectors (such as myself) prefer to keep them in...
MAX732/733 refers to the DC-DC current PWM step-up regulator. As to MAX732, output voltage is...
Adapting one of my failed Tesla coils into a crystal radio set to show the neighborhood kids....
BA2101 dimming using ASIC to produce a barrel of light touch stepping, Its a non- constant lamp...
Circuit schematic shown in Figure 2-3 ov, rlr, VT2 composition twin direct coupled input...
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