One of reversing circuit reverse braking resistor in series with a DC motor armature start
Posted on Mar 28, 2007
New Circuits
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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 Project Multi-Pattern Running light is used to generate several designs of Running Lights....
A power transistor can be used to provide a high powered zener voltage from a low wattage zener....
The µA2240 may easily be configured as a programmable voltage controlled timer with a minimum...
This circuit was designed to charge NiCad battery packs in the range of 4.8 to 15.6 V from a...
This preamplifier has a built-in regeneration control boost gain selectivity. CI is a single or...
This is designed to work with a varity of stepper motors, 5 or 6 wire unipolar types. Its also...
Aquaponics systems need a good water quality, and one of the parameters is pH value, which needs...
The ADI Company one ADM1066 is it monitor one piece powers many kinds of of configurated...
This simple home emergency lights uses very few components yet is able to produce a reasonable...
This is a step by step guide to modifying the disposable camera flash unit that powers the Geiger...
This antenna amplifier is very useful for 35kHz-150Mhz frequency band. This antenna amplifier...
The National Semiconductor LMV225 is a linear RF power meter IC in an SMD package. It can be used...
In ladder logic symbolism, an electromechanical relay coil is shown as a circle, and the...
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