Look for the blanket internal disconnection circuit, its working principle is: M spot welding have a wire about 2cm induction body, when a sense of
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when to be close to the body charged mains FireWire side by VD induced voltage is rectified by the VT1 ~ VT3 a composite tube amplification, VT4 was added to the base, so that VT4 conduction. LED light-emitting display: When the susceptor away from the line of fire or fire when the line is not live, because no induced voltages VT1-VT3 no output, VT4 was less bias and off, LED off. Component selection and production as follows. Transistor value g 20, Ieeo as small as possible; light-emitting diodes I. ED can choose one model; the value of the resistor R is generally several tens Europe, RP semi-variable resistor. When debugging, you should inductor (induction test pencil) live near the line of fire, change the resistance of RP, the LED goes out to the light. When away from the line of fire when, I. ED should be extinguished. When using test pencil checking electric blankets, heating wire and two joints should be power line disconnect any one package with an insulating cloth broken thread wrapped on one side and then the power cord is connected and plugged into a live wire resistance FireWire catch hole (to prevent electric shock, but also enough to withstand a series of small electric capacity), so close to the body test pencil induction heating wire is not disconnected from the far end of sequentially looking for, once the LED goes out, they found at the break.
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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