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USB Type-C PD 3.0 Specification, Charging and Design - EDN
网页2021年6月25日 · The first one—Power Delivery 2.0—supports fixed output voltages including 5, 9, 12, 15, or 20V at specific operating currents, for example 3 A. The second specification—PD 3.0—includes programmable power supply (PPS), a feature that allows the USB Type-C charger’s output voltage to be adjusted in …
Setup and Hold Time Basics - EDN
网页2012年4月19日 · Hold time is defined as the minimum amount of time after the clock’s active edge during which data must be stable. Violation in this case may cause incorrect data to be latched, which is known as a hold violation. Note that setup and hold time is measured with respect to the active clock edge only.
Roadside Electric Car Charging: 3 Solutions For EVs - EDN
网页2020年10月27日 · Battery modules can be recharged using traditional 110V or 220V household outlets. Up to five modules: One module (22 kg): 3.5 kWh (3.2 kWh usable) for 14-15 miles of range. Two modules (44 kg): 7 kWh (6.4 kWh usable) for 28-30 miles of range. Three modules (66 kg): 10.5 kWh (9.6 kWh usable) for 42-45 miles of range.
Top 10 Uses Of The Internet - EDN
网页1995年12月21日 · At least 85% of the inhabitants of cyberspace send and receive e-mail. Some 20 million e-mail messages cross the Internet every week. 2. Research. 3. Downloading files. 4. Discussion groups. These include public groups, such as those on Usenet, and the private mailing lists that ListServ manages.
Burn-in 101 - EDN
网页2014年10月14日 · Burn-in testing is the process by which we detect early failures in components, thereby increasing component reliability. In the semiconductor world, this means taking us closer to zero DPPM. During burn-in, the component is exercised under extreme operating conditions (elevated temperatures and voltages). This stresses the component under test ...
Audio levels, dBu, dBV, and the gang: What you need to know
网页2017年4月18日 · Here’s what you need to know. First off, you need to know that I expended significant effort to avoid naming this article “ dB or not dB, that is the question ”. But seriously: The vast majority of line-level analog audio interfaces fall into two categories: Advertisement. Unbalanced, using “RCA” connectors, at a so-called “-10dBV ...
Eye Diagram Basics: Reading, Analyzing and Applying
网页2011年12月16日 · An eye diagram is a common indicator of the quality of signals in high-speed digital transmissions. An oscilloscope generates an eye diagram by overlaying sweeps of different segments of a long data stream driven by a master clock. The triggering edge may be positive or negative, but the displayed pulse …
Setup and Hold Time Equations and Formulas - EDN
网页2012年8月10日 · Hence to fulfill the setup time requirement, the formula should be like the following. T c2q + T comb + T setup ≤ T clk + T skew (1) Let’s have a look at the timing diagram below to have a better understanding of the setup and hold time. Figure 2 Setup and hold timing diagram. Now, to avoid the hold violation at the launching flop, the data ...
Clock Domain Crossing Techniques & Synchronizers - EDN
网页2014年9月30日 · In general, a conventional two flip-flop synchronizer (2-FF) is used for synchronizing a single bit level signal. As shown in Figure 1 and Figure 2 , flip flop A and B1 are operating in asynchronous clock domain. There is probability that while sampling the input B1-d by flip flop B1 in CLK_B clock domain, output B1-q may go into metastable state.
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