Introduction of transistor tuned amplifier – An audio amplifier amplifies a wide band of frequencies equally well and does not allow the selection of a particular desired frequency while rejecting all other frequencies. Sometimes it is desired that an amplifier should be selective that is it should select desired frequency or narrow band of frequencies … Read more
Transistor biasing is required for proper operation of transistors in any circuit. The basic purpose of biasing is to keep the base emitter junction forward biased and collector base junction is reverse biased, during the application of signal. Define faithful amplification During amplification the magnitude of signal should increase and there should be no change … Read more
In the previous article we got some information about oscillators definition, sinusoidal oscillators, essential of transistor oscillators, so today we are going to discuss the different types of transistor oscillators. So let’s start the topic. If the tank and feedback circuit are properly connected a transistor can work as an oscillator to produce continuous discontinuous … Read more
Before knowing about sinusoidal oscillator, we will get some information about oscillator. After that we will learn about Positive Feedback Amplifier, Essential of Transistor Oscillator and Barkhausen Criterion. So let’s start the topic. Oscillator definition An oscillator is an electronic circuit that produces a repeating electronic signal in equal intervals of time. They are widely … Read more
A transistor power amplifiers handles large signals. Many of those inputs are driven so hard by the large signal that the collector current either cut-off or is in the saturation region during a large portion of the input cycle. Therefore, such amplifiers are generally classified according to their mode of operation, that is the part … Read more
Definition – A transistor amplifier which amplifies the power level of a signal having audio frequency range is known as transistor audio power amplifier. A practical amplifier always consists of several stages that amplify a weak signal until sufficient power is available to operate a loudspeaker or other output device. In this multistage amplifier the … Read more
The most common use of diodes is rectification. Rectifier diodes are use in power supplies to convert a. c. voltage to d. c. voltage. But the diode can’t do only rectification. Now a days in this fast developing world many specific types of diodes are manufactured for specific application. So some special purpose diodes are … Read more
Here today we are going to discuss about the working of JK flip-flop. And also we will look at the truth table. So stay with us till the end. So let’s start. The JK flip-flop has two inputs J and K. It is the improved version of RS flip flop so that when both inputs … Read more
Here we are discuss some information about working of four bit ripple counter. So till the end stay with us and lets start. One more thing remember a 4-bit ripple counter is also know as 4-bit asynchronous/binary/ripple counter. What is a counter ? Flip flops can be connect together to perform counting operation and such … Read more
The topic that we are going to discuss is feedback in electronics, and also we will discuss what is the positive and negative feedback, after that we will see some short question answer. So lets start this topic. The theory of feedback is probably as old as the invention of the first machine, but feedback … Read more
