Amplifiers boost the power of audio signals using transistors, which are made from semiconductors like silicon that have been modified through a process called doping. The transistor in an amplifier typically involves a three-layer structure with p-type and n-type semiconductors, allowing it to cont...
Next, we have to decide the value of the REresistor. The value that we choose is integral so that we do not overheat and possibly destroy the transistor. How we choose REis based on the value of the current, IEthat we want following through the transistor and what is a safe current to...
You talk about adding a resistor to make the transistor amplify but it reduces the signal and you do not say the value of the resistor. Of course it will not amplify if the resistor value is calculated wrong. What value did you use for the added collector resistor? The inverter was compl...
Factors in Audio Class D Amplifier DesignThe lower power dissipation provides a strong motivation to use Class D for audio applications, but there are important challenges for the designer. These include:Choice of output transistor size Output-stage protection Sound quality Modulation technique EMI LC...
Before we start, it should be noted that we’ll be using the transistor as a simple switch and not as an amplifier. Remember, transistors can operate either as an amplifier or a switch. If you’re using a transistor to amplify a signal, the transistor is said to be operating in the ...
10. THE TRANSISTOR CAN ACT LIKE A SWITCH (OR LIKE A PARTIALLY-ON SWITCH.) 11. CONNECT A POWER SUPPLY OR BATTERY FROM COLLECTOR TO EMITTER IN ORDER TO CREATE A BIG FLOW OF CHARGE (BUT WHY?) 12. THERE'S ANOTHER DEPLETION ZONE BETWEEN COLLECTOR AND BASE. ...
region” or “ON mode” when using a bipolar NPN transistor as a switch as being, both the junctions are forward biased, IC = Maximum, and VB > 0.7v. For a PNP transistor, the Emitter potential must be +ve with respect to the Base. This is theworking of the transistor as a switch...
enables silicon to gain freeelectronsthat carry electric current. The silicon becomes either an n-type semiconductor where electrons flow out of it or a p-type semiconductor where electrons flow into it. Either way, the semiconductor enables the transistor to function as a switch or amplifier. ...
Over the years, the manufacturing process of transistors has evolved significantly thanks to technological advances, enabling the production of increasingly smaller and more powerful transistors. Today, transistors are manufactured using advanced techniques such as FinFET (Fin Field-Effect Transistor) and ...
Step 1: What Console to Choose We will be covering the NES in this Instructable, but you can make a portable out of any console you want. Some are harder than others, though. Here are the "main" game systems that would be easy to make handheld: ...