LM1894 Principles and Applications a
Posted on Mar 28, 2007
New Circuits
-
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.....
.
The design objective was to produce an hFE tester with switched collector currents for the DUT...
The circuit is built around an LM339 quad comparator, Ul, which forms the basis of a Schmitt...
The base of Ql is connected to the car"s ignition circuit. One side of the piezoelectric buzzer...
The LED with integrated flasher is connected in series with the base-emitter junction of...
This closed-loop peak detector circuit uses a Schottky diode inside feedback loop to obtain good...
A differential current sensing that is inserted inside a H bridge circuit. is shown in the...
I have had a few inquiries about a low power FM transmitter, and this article should satisfy...
This circuit is similar to the one above but uses positive feedback to get a little more...
This project was deliberately aimed at developing a very low cost cosmic ray detector using...
This light dimmer control has active timing capacitor reset or AC line zero-crossing...
This is a design project of an air-filter sensor to be used in home heating and cooling system....
A charge amplifier is an amplifier whose equivalent input impedance is a capacitive reactance...
Connect serial cable with serial port and if you are using USB to TTL or RS232 or serial...
As shown in FIG audio circuit is commonly used in color television, TA8218AH pin functions and...
characters left: