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Q. Explain how LEDs are arranged in a seven segment display ?
The illustration given below shows the basic layout of the segments in a seven- segment display. The segments themselves are identified with lower-case letters "a" through "g," with segment "a" at the top and then counting clockwise. Segment "g" is the center bar.
Most seven-segment digits also include a decimal point ("dp"), and some also include an extra triangle to turn the decimal point into a comma. This improves readability of large numbers on a calculator, for example. The decimal point is shown here on the right, but some display units put it on the left, or have a decimal point on each side.
Seven-segment displays can be constructed using different technologies. The three most common methods are
1. fluorescent displays (used in many line-powered devices such as microwave ovens and some clocks and clock radios)
2. liquid crystal displays (used in many battery-powered devices such as watches and many digital instruments)and
3. LEDs (used in either line-powered or battery-powered devices).
Classification of Solids into Insulators, Semiconductor and Conductors A solid can conduct electric current if the electrons can move in it. This is possible only when an ener
A button does some command in a program when it is clicked. Buttons generally have a 3-dimensional look, although you may have to move the mouse over the button for it to look 3D.
Merits: 1. It is very simple to shift the operating point anywhere in the active region by just changing the base resistor (R B ). 2. A very small number of compon
Circuits, which provide sinusoidal waveforms, are but useful in themselves and form the basis of many other circuits, such as square and triangular waveform generators, and clocks.
Q. Write a note on clampers ? Clamper is a circuit that "clamps" a signal to a different dc level. The different types of clampers are positive negative and biased clampers.
Q. A low-pass filter circuit is shown in Figure. Using a PSpice program and PROBE, obtain the Bode magnitude plot for the transfer function ¯H(f) = ¯V out / ¯V in for the frequ
Tick off the material, which is different from the group (A) Constantan. (B) Manganin. (C) Nichrome. (D) Brass. Ans: Tick off the materi
2365 302 written exam
i need research publication help. The topic is PHASED ARRAY ANTENNA DESIGN for KU-band. I want a research paper that can be published in some conference.
The growth in communications over the past 60 years has been phenomenal. The invention of the transistor in 1947 and the integrated circuit and laser in 1958 have paved the way to
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