Skip to main content

Posts

Showing posts from 2019

Great innovation projects journey of india with Texas Instruments

Hi Friends, here I will come with great information on India projects journey partner Texas Instruments. Texas Instruments has one of the longest space-flight histories of any semiconductor vendor. Even before Texas Instruments engineer Jack Kilby conceived and built the first integrated circuit (IC) in September 1958, Texas Instruments transistors had flown into space on the U.S.’s first satellite, Explorer 1, which launched on Jan. 31 that same year. Since then, products from Texas Instruments have flown on many space missions. Notable and historic missions with Texas Instruments products onboard include:  • Telstar 1, the first broadcast TV satellite • Apollo 11, marking the first man on the moon  • Mariner 2, the first successful interplanetary spacecraft  • Voyager 1, still traveling after 40 years and now the farthest a human-made object from Earth  • Every Space Shuttle mission from 1981-2011  • Navigational satellites supporting GPS and the Global Navigat

Electromagnetics Interview Questions Series

Q-1: When we apply current in circular ring clockwise direction than what pole of bar magnet it should represent or what happens in vice versa. Q-2: Can we used copper as dielectric material at W or V bands.                                              Hello, my dear friend, 's I will come back with this Electromagnetics  subject  questions please give your answer according to your knowledge. if you have doubts then join with me in my WhatsApp group link is below. https://chat.whatsapp.com/BVQAI00KNS91piwNhBfYqK

FM Ratio Detector: FM ratio discriminator working and principle

The ratio FM detector, discriminator or demodulator was widely used for FM demodulation for radio receivers that typically used discrete components. Now with radios using integrated circuits other forms of FM demodulator are more applicable. When used, the FM ratio detector was able to provide good levels of performance with limited number of components. The FM ratio detector may also be called an FM ratio demodulator or even an FM ratio discriminator. The two main types of FM detector or demodulator that were used in circuits using discrete components were the ratio detector and the Foster-Seeley FM detector. Both types were widely used, but the FM ratio detector was the more common because it offered a better level of amplitude modulation rejection of amplitude modulation. This enabled the circuit to provide a greater level of noise immunity as most noise is amplitude noise. It also enabled the FM detector to operate more effectively even with with lower levels of limiting in th

Electronics Devices And Circuits Questions And Answer

Q-1: Why MOSFET is Symmetrical devices but not a Transistor. Q-2:  If we increase the gate to source voltage in negatively then the pinch-off voltage of JFET is increased or decrease, explain with graph plotting. Q-3: why the output resistance of MOSFET is inversely proportional to the channel length modulation parameter. Q-4: In N-P-N transistor Emitter-Base and Base-Collector reverse saturation current are the same or not and why. Q-5: Why NMOS is used as pull-down and PMOS is used as pull-up in CMOS fashion. Hello, my dear friend's I will come back with this EDC subject questions please give your answer according to your knowledge. if you have doubts then join with me in my WhatsApp group link is below. https://chat.whatsapp.com/BVQAI00KNS91piwNhBfYqK

ONE OF THE BEST INTERVIEW QUESTIONS AND ANSWER SERIES

                                     INTERVIEW            QUESTIONS                AND              ANSWER               SERIES Hello my dear friend's here now i will be posted most crucial interview questions ans answer series which is really interactive for you. here you see this series on the label as Interview Questions and Answer. i think it is interesting series.  so be ready for update ????  i will come back with your excitation. 

I2C Bus, Interface and Protocol which is Used inside the RTL-SDR

I2C is a serial protocol for two-wire interface to connect low-speed devices like microcontrollers, EEPROMs, A/D and D/A converters, I/O interfaces and other similar peripherals in embedded systems. It was invented by Philips and now it is used by almost all major IC manufacturers. Each I2C slave device needs an address. The I2C bus is popular because it is simple to use, there can be more than one master, only upper bus speed is defined and only two wires with pull-up resistors are needed to connect an almost unlimited number of I2C devices. I2C can use even slower microcontrollers with general-purpose I/O pins since they only need to generate correct  Start and Stop conditions  in addition to functions for reading and writing a byte. Each slave device has a unique address. Transfer from and to a master device is serial and it is split into 8-bit packets. All these simple requirements make it very simple to implement I2C interface even with cheap microcontrollers that hav

Designing of the PV system

What is a solar PV system? Solar photovoltaic system  or  Solar power system  is one of  renewable energy system  which uses PV modules to convert sunlight into electricity. The electricity generated can be either stored or used directly, fed back into grid line or combined with one or more other electricity generators or more renewable energy source. The solar PV system is a very reliable and clean source of electricity that can suit a wide range of applications such as residence, industry, agriculture, livestock, etc. Major system components: Solar PV system includes different components that should be selected according to your system type, site location, and applications. The major components for the solar PV system are solar charge controller, inverter, battery bank, auxiliary energy sources and loads (appliances).    PV module  - converts sunlight into DC electricity.   The solar charge controller  - regulates the voltage and current coming from the PV  panel

Verilog vs. VHDL

One of the longest standing “arguments” between engineers in digital design has been the issue of which is best—Verilog or VHDL? For many years this was partly a geographical divide, with North America seeming to be mainly using Verilog and Europe going more for VHDL, although this was not universal by any means. In many cases, the European academic the community was trending toward VHDL with its easy applicability to system level design and the perception that Verilog was really more a “low level” design language. With the advent of SystemVerilog and the proliferation of design tools, these boundaries and arguments have largely subsided, and most engineers realize that they can use IP blocks from either language in most of the design tools. Of course, individuals will always have their own preferences; however, it is true to say that now it is genuinely possible to be language agnostic and use whichever language and tools the user prefers. More often than not, the choice will depend

Overview of The GPS System

The Global Positioning System (GPS) is a satellite-based navigation system which is consists of 24 orbiting satellites, each of which makes two circuits around the Earth every 24 hours. These satellites transmit three bits of information – the satellite's number, its position in space, and the time the information is sent. These signals are picked up by the GPS receiver, which uses this information to calculate the distance between it and the GPS satellites. With signals from three or more satellites, generally, four satellite signal is pickup by the GPS receiver that can be formed triangulate its location on the ground (i.e., longitude and latitude) from the known position of the satellites. With four or more satellites, a GPS receiver can determine a 3D position (i.e., latitude, longitude, and elevation). In addition, a GPS receiver can provide data on your speed and direction of travel. Anyone with a GPS receiver can access the system. Because GPS provides real-time, three-d

VLSI Design – Front End and Back End

In VLSI design, what is VLSI Front end and what is VLSI Back end?  What does a front end engineer do compared to a back end engineer in the VLSI design flow?  Who has better opportunities in terms of career and earning potential?  These are some common questions that every student or entry-level engineer encounters. Introduction: Let's try to understand this in detail.  Following diagram illustrates a standard VLSI Design life cycle and the various stages involved in the design from specification to manufacturing. Specification:  This is the first stage in the design process where we define the important parameters of the system that has to be designed into a specification. High-level Design : In this stage, various details of the design architecture are defined. In this stage, details about the different functional blocks and the interface communication protocols between them, etc. are defined. Low-level Design:  This phase is also known as microarchitecture phase. In

What is the Radome

A radome is a structural, weatherproof enclosure that protects a radar system or antenna and is constructed of material that minimally attenuates the electromagnetic signal transmitted or received by the antenna. Radomes protect antenna surfaces from weather and/or conceal antenna electronic equipment from public view. There are specialized radome manufacturers who provide radomes for all types applications including for weather radar, air traffic control, satellite communications, and telemetry. Radomes can be manufactured in many shapes and sizes. The particular application or frequency determines the use of a variety of construction materials. Radome Services LLC crews are experienced with all types, including dielectric, space frame, composite, and air inflatable radomes that are mounted on the ground, towers, roof tops and on board ships. Types of Radomes A radome is an electronic antenna enclosure. These enclosures are made of either rigid self-supporting materials or a

Radar frequency bands and wavelength

World War II Bands Band Name Band Frequency Band Wavelength VHF 214 – 236 MHz 1.4 to 1.27 meters P 300 MHz 1 meter UHF 425-610 MhZ 70.6 to 49.18 cm L 1250-1380 MhZ 24 to 21.74 cm S 2700-3900 MHz 11.11 to 7.69 cm C 5300-5520 MHZ 5.66 to 5.43 cm X 9,230 – 9,404 MHz 3.25 to 3.19 cm Ku 16,000 MHz 1.88 cm Ka >20,000 MHz 1.5 cm Q 40,000 MHz 7.5 mm IEEE Band Band Name Band Frequency Band Wavelength I Band 0 - 200 MHz Up to 1.5 meters G Band 200 - 250 MHz 1.5 to 1.2 meters P Band 250 - 500 MHz 1.2 meters to 60 cm L Band 500 - 1,500 MHz 60 to 20 cm S Band 2,000 - 4,000 MHz 15 to 7.5 cm C Band 4,000 - 8,000 MHz 7.5 to 3.75 cm X Band 8,000 - 12,000 MHz 3.75 to 2.5 cm Ku Band 12,000 - 18,000 MHz 2.5 to 1.67 cm K Band 18,000 - 26,000 MHz 1.67 to 1.15 cm Ka Band 26,000 - 40,000 MHz 11.54 to 7.5 mm V Band 40,000 - 75,000