Category: ENGINEERING VIDEO

In this video Ms. Shristy Khandelwal, asst. professor, B. Tech Dpartment, Electronics and Communication, Biyani Girls College, Jaipur explains about the PLL which is a control system that generates a signal that has a fixed relation to the phase of a reference signal. In other words, PLL is a circuit which generates a frequency and then detects phase difference between input and output frequency according to which it corrects the output frequency, so as to lock or synchronize the frequency of a controlled oscillator. PLL consists of three blocks i.e phase detector, low pass filter, and voltage controlled oscillator.
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In this video Ms. Shristy Khandelwal, asst. professor, Biyani Girls College, explains the purpose of power amplifier which takes a signal from a source device and makes it suitable for driving a loud speaker. Audio power amplifiers are those amplifiers which are designed to drive loud speakers .Power is not really something that can be “amplified”. Voltage and current can be amplified.
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In this video Ruksaar Khan, student, Biyani International Institute of Engineering & Technology, explains about the superconductors i.e metals which allows the electric current to pass through them without any loss due to heat dissipisation. It was discovered in the year of 1911 by the scientist Heike kemmerlingh Onnes . It is used for transmisiion and has many advantages over overhead power lines.

In this Video, Mrs. Deepika Rathore , Asst. Professor, Biyani Group of Colleges is explaining about the Southern Blotting. This technique is used for detection of a specific DNA sequence in DNA samples. Southern blotting combines transfer of electrophoresis-separated DNA fragments to a filter membrane and subsequent fragment detection by probe hybridization. After hybridization, excess probe is washed from the membrane and the pattern of hybridization is visualized on X-ray film by autoradiography in the case of a radioactive or fluorescent probe, or by development of color on the membrane if a chromogenic detection method is used.

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In this Video, Monika Kiroriwal, Assistant Professor, Biyani Group of Colleges explains about the implementation of CMOS NOR Gate logic design. CMOS logic design made by pull-up and pull-down networks. Pull-up network is made by using PMOS transistors and pull-down network using NMOS transistors. To design the CMOS NAND gate first take the compliment of the expression and then make the pull-up and pull-down networks using PMOS and NMOS transistors respectively. PMOS transistors are connected in series and NMOS transistors are in parallel and after combining these two networks final CMOS NOR gate is produced. Output is taken at the junction points and then verify the truth table of digital NOR gate.

In this Video, Ms. Komal Mehna, Assistant professor, Biyani group of colleges, explains pin diagram of 8051 microcontroller. It is a 40 pin IC which consist 4, 8 bit input & output ports, supply voltage, reset, PSEN, ALE and ground pin. Port 1 is known as truly input and output port where as other ports are used for dual purpose. It has two timers/counters and two oscillators.