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Understanding I/Q Signals and Quadrature Modulation ...

https://www.allaboutcircuits.com/.../understanding-i-q-signals-and-quadrature-modulation

Quadrature modulation refers to modulation that involves I/Q signals. Quadrature phase shift keying can be accomplished by adding I and Q carriers that have been individually multiplied, in accordance with the incoming digital data, by +1 or –1.

True, Reactive, and Apparent Power | Power Factor ...

https://www.allaboutcircuits.com/.../chpt-11/true-reactive-and-apparent-power

The mathematical symbol for reactive power is (unfortunately) the capital letter Q. True Power The actual amount of power being used, or dissipated, in a circuit is called true power , and it is measured in watts (symbolized by the capital letter P, as always).

The D Latch | Multivibrators | Electronics Textbook

https://www.allaboutcircuits.com/textbook/digital/chpt-10/d-latch

Since the enable input on a gated S-R latch provides a way to latch the Q and not-Q outputs without regard to the status of S or R, we can eliminate one of those inputs to create a multivibrator latch circuit with no “illegal” input states.. Such a circuit is called a D latch, and its internal logic looks like this: Note that the R input has been replaced with the complement (inversion) of ...

Circuit Simplification Examples | Boolean Algebra ...

https://www.allaboutcircuits.com/textbook/digital/chpt-7/circuit-simplification-examples

Circuit Simplification Examples Chapter 7 - Boolean Algebra ... If you would like to verify this, you may generate a truth table for both expressions and determine Q’s status (the circuits’ output) for all eight logic-state combinations of A, B, and C, for both circuits. The two truth tables should be identical.

X7R, X5R, C0G…: A Concise Guide to Ceramic Capacitor Types ...

https://www.allaboutcircuits.com/technical-articles/x7r-x5r-c0g...-a-concise-guide-to...

Technical Article X7R, X5R, C0G…: A Concise Guide to Ceramic Capacitor Types March 30, 2018 by Robert Keim This technical brief attempts to dispel some of the fog that surrounds the three-character cryptograms used to describe ceramic caps.
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Technical Articles

Understanding Analog-to-Digital Converters: Deciphering ...

https://www.allaboutcircuits.com/technical-articles/understanding-analog-to-digital...

Technical Article Understanding Analog-to-Digital Converters: Deciphering Resolution and Sampling Rate November 20, 2015 by Elliott Smith Resolution and sampling rate are two important factors to consider when selecting an analog-to-digital converter (ADC).
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Update the Firmware in Your ESP8266 Wi-Fi Module - Projects

https://www.allaboutcircuits.com/projects/update-the-firmware-in-your-esp8266-wi-fi-module

Objective and Rationale. This is the author's second article about the ESP8266 integrated circuit, a relatively new chip comprising a full-featured 32-bit RISC µC and a built-in 802.11 b/g/n Wi-Fi circuit.