EDN - Voice of the Engineer
Nov 7, 2024 · Electronic Design News (EDN) is an electronics community for engineers, by engineers. Find the latest articles, magazines, tools, and blogs in the industry.
Audio levels, dBu, dBV, and the gang: What you need to know
Apr 18, 2017 · But before delving into the interfaces and their differences, we need to look at the purely audio phenomenon called dBVU. VU Meters We’ve all seen “VU” (volume unit) meters on audio equipment, but the truth is, very few of them are true VU meters.
Automotive HVAC & Cabin Climate Control System Basics - EDN
Dec 21, 2012 · Introduction. Heating, ventilation and air conditioning (HVAC) is the technology for indoor and automotive ambient comfort. HVAC facilitates in managing the pleasant climate inside the cabin by controlling the degree of hotness/coolness.
Protecting against reverse polarity: Methods examined, Part 1
Aug 22, 2014 · Preventing Damage to the Power Source . This article reviews the pros and cons of each method, but we need to begin with a short warning. If the power source has reversed polarity, some of the solutions proposed protect the device by shorting the power supply.
Setup and Hold Time Basics - EDN
Apr 19, 2012 · Whenever both nMOS and pMOS are turned on, any signal ‘1’ or ‘0’ passes equally well without degradation. The use of transmission gates eliminates undesirable threshold voltage effects which give rise to loss of logic levels.
Parametric on-chip variation: A step towards accurate timing analysis
Aug 7, 2019 · POCV. In POCV, instead of applying a specific derating factor to a cell, cell delay is calculated based on a delay variation of that cell. This delay variation (σ) for each cell is obtained through Monte-Carlo HSPICE simulation.The variation value σ is a unique value specific to that library cell.. Some of the terminologies used for POCV analysis are briefly explained below:
Op-Amp Circuits, Configurations, and Schematics - EDN
Apr 29, 2020 · Introduction to Op Amps. Operational amplifiers (commonly called op amps) are a ubiquitous building block for designing electronic circuits. Today, these devices are fabricated as small integrated circuits, but the concept started long ago using vacuum tubes.
USB Type-C PD 3.0 Specification, Charging and Design - EDN
Jun 25, 2021 · Introduction. The USB Type-C connector and power delivery (PD) specification has brought radical changes to the mobile device industry, and USB Type-C PD 3.0 could optimize battery charging for portable devices.
Eye Diagram Basics: Reading, Analyzing and Applying
Dec 16, 2011 · How to read an eye diagram. A properly constructed eye should contain every possible bit sequence from simple alternate 1’s and 0’s to isolated 1’s after long runs of 0’s, and all other patterns that may show up weaknesses in the design.
SELV In Power Supplies: Definition & Applications - EDN
May 14, 2013 · What does SELV stand for? SELV stands for Safety Extra Low Voltage. Some AC-DC power supply installation manuals contain warnings concerning SELV. For example, there may be a warning about connecting two outputs in series because the resulting higher voltage may exceed the defined SELV safe level, which is less than or equal to 60VDC.