Diagram 2 shake tube n. Capacitance C. Trigger voltage rectifier filter element. H is a trigger voltage transistor amplifier circuit, three pull tube n, U, v. Composition trigg
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er thyristor as BCR diac. LED switching status display, c6. G. day. DW, dish for the power circuit section. When touched with a finger briefly under speculation inch touch sheet, the bodys AC induction voltage through the diode rectifier, capacitor c, filter plus obtain a pulsating DC voltage, input A transistor base so conduction, H set an electrode current two routes, all the way to the flow of R.V2 base because it is a short touch, so collector current is short, the current does not cause C, the voltage changed greatly .K not turned on, and the other JL! stream troops, R, U G pole, so n will have collector current flowing through the n base, so n.V4 from off state into saturated conduction state exhausted, the n-nest high electrode electrically him (nearly 6V supply voltage). the a current through the SCR system very romantic person, SCR BCR conducting open shoulder .DZ light bulb. and when the high potential electrode V-ju, will maintain the current through the island, K3 inflows U base, maintain U. the V4 saturated conduction state. to turn off power to the switch, just simply touching a finger again to bring films, Rang contact time is more than 3 seconds, so collector electrode has a longer duration of current flows through Rz charge to C3, when the white charging to 0.7V, n is turned off and the n low potential, V4 also turned off thyristor gate current losing BCR cut LL.DZ lamp goes out. after touch-up, U, V held in the off state.
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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