Field effect transistors voice amplifier, the input impedance of the transistor is low, only lkCZ, requiring signal source provides a constant current signal to work. The field
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effect transistor is not, it is a voltage-controlled device, within the normal working range of Si, the gate G a few take almost no current. Field effect transistor has a very high input impedance (107n), low noise, large dynamic range and high magnification, use it usually only composed of a voltage amplifier with level to meet the requirements. It is widely used in various electronic sub-circuits. Sub-junction field effect transistor and an insulated gate type two, this section describes the junction field effect transistor transistor. Figure is a gate voltage divider type common source amplifier, similar to those in Figure 9-18 common emitter VT1 transistor amplifier. It works as follows: transistor amplifier and similar circuits, must always be first gate (G) of a source (S) and the gate (G) - drain (D) two IN junction is reverse biased state (for N-type tube ), such as the drain current gate current k change varies, if the drain resistance Rn great, you can get a lot of voltage changes from f and electrical amplification. Its gate bias resistor bias current is not made to its gate, and the gate bias voltage is obtained. To do this in the circuit, it is common bias resistor adjustable resistor RP, easy to obtain when appropriate quiescent point in the circuit to adjust the gate bias.
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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