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Sergé`s famous letter
Sergé`s famous letter

... I could write a volume concerning the 3280 which I consider one of the slipperiest devices (full of non−obvious quirks...) that I have seen. In the balance, I consider it a better work of the IC designer's art than the 13600, mainly because of the interdigital input transistor structure which ensure ...
DRV612 数据资料 dataSheet 下载
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... The DRV612 is a DirectPath line-driver amplifier that requires adequate power-supply decoupling to ensure that the noise and total harmonic distortion (THD) are low. A good low equivalent-series-resistance (ESR) ceramic capacitor, typically 1 μF, placed as close as possible to the device VDD lead wo ...
Introduction to OrCAD Capture and PSpice Notes for demonstrators
Introduction to OrCAD Capture and PSpice Notes for demonstrators

... • The dropdown list in the middle contains recently used components so that you can select them quickly when drawing your circuit. The list is initially empty. • The next set of four buttons are for zooming in and out so that the circuit is drawn on the screen at a convenient scale. • We won’t use t ...
Usage of Three-Terminal Regulators
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... • Descriptions of circuits, software, and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. The incorporation of these circuits, software, and information in the design of the customer's equipment shall be d ...
MAX14781E Half-Duplex RS-485 Transceiver with Polarity Correction General Description
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... The MAX14781E +5V, half-duplex ±25kV ESD-protected RS-485 transceiver features integrated automatic polarity correction to ensure that miswired A and B lines are autonomously corrected, simplifying equipment and network installation. The MAX14781E includes slew-rate limited drivers that minimize EMI ...
RF3854 LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER
RF3854 LOW NOISE, MULTI-MODE, QUAD-BAND, QUADRATURE MODULATOR AND PA DRIVER

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Two-Ports - University of Southern California
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... encourages maximal current conduction through the output port. Recalling (3-10), Ii = IS when ZS = ` and accordingly, h21 is the ZS = ` and ZL = 0 value of the system current gain, Ai. For Ii = 0, which implies an open circuited input port, as diagrammed in Fig. (3.4b), ...
AD549 Ultralow Input Bias Current Operational Amplifier Data Sheet
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... current is essentially independent of common-mode voltage. The AD549 is suited for applications requiring very low input current and low input offset voltage. It excels as a preamp for a wide variety of current output transducers, such as photodiodes, photomultiplier tubes, or oxygen sensors. The AD ...
Ohms Law Worksheet Basic Circuits
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LT5570 - Linear Technology
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... The LT5570’s differential inputs are optimally driven from a fully balanced source. When the signal is from a singleended 50Ω source, conversion to a differential signal is required to achieve the maximum dynamic range. This is best achieved using a 1:4 balun to match the internal 200Ω input impedan ...
AVOP-ELEKTRO-BER-003
AVOP-ELEKTRO-BER-003

MAX220–MAX249 +5V-Powered, Multichannel RS
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ppt - EC - Unit 1 - Transistor, UJT, SCR
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OPAx836 Very-Low-Power, Rail-to-Rail Out, Negative
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Guidelines for Measuring Audio Power Amplifier

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... (a) For v sufficiently low that Q is cut off, find the value of the output voltage v . This is V . _ (b) For v, sufficiently high that Q is carrying all the current /, find the output voltage v . This is V . (c) Determine the value of v, that results in Q conducting 1% of /. This can be taken as V . ...
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Audio Products

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Theory of Operation and VDD Fault Scenario
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... Figure 2. Point-to-point LVDS Driver Receiver configuration The differential aspect of LVDS allows systems to run at high data rates, with low switching power, high noise immunity, and common mode range. Single ended data transfer schemes, on the other hand, tend to be very sensitive to common mode ...
Discrete devices: FETs - UBC Engineering Physics Project Lab
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... of current. Motors, lamps and similar high current devices cannot typically be driven by a normal OPamp. High power Op-amps exist that can provide much higher current levels. Output voltage range is also limited within a few volts of the power rails. ...
hrt_sfbm.pdf
hrt_sfbm.pdf

... value I was not getting a very wide range of clean sounds so I tried reducing the value of that resistor even further to 150k, which helped a lot. I liked all three values so I decided to wire up a center-off DPDT switch to select between those 3 values for the grid load resistor. I mounted the 470k ...
Grid sequence detector based on a stationary reference frame
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... PLLs are possibly the most extended synchronization methods in the case of grid-connected three-phase systems and are usually based on the use of a synchronous reference frame [6], [7]. The dynamic response of some methods, such as the one in [8], is good under balanced grid voltages, but very slow ...
+5V-Powered, Multichannel RS-232 Drivers/Receivers General Description Next-Generation Device Features
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... ROUT........................................................-0.3V to (VCC + 0.3V) Short-Circuit Duration, TOUT to GND ........................Continuous Continuous Power Dissipation (TA = +70°C) 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW 16-Pin Plastic DIP (derate 10.53mW/°C above + ...
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... The LMC555 is a CMOS version of the industry standard 555 series general purpose timers. In addition to the standard package (SOIC, MSOP, and MDIP) the LMC555 is also available in a chip sized package (8 Bump micro SMD) using National's micro SMD package technology. The LMC555 offers the same capabi ...
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Regenerative circuit



The regenerative circuit (or regen) allows an electronic signal to be amplified many times by the same active device. It consists of an amplifying vacuum tube or transistor with its output connected to its input through a feedback loop, providing positive feedback. This circuit was widely used in radio receivers, called regenerative receivers, between 1915 and World War II. The regenerative receiver was invented in 1912 and patented in 1914 by American electrical engineer Edwin Armstrong when he was an undergraduate at Columbia University. Due partly to its tendency to radiate interference, by the 1930s the regenerative receiver was superseded by other receiver designs, the TRF and superheterodyne receivers and became obsolete, but regeneration (now called positive feedback) is widely used in other areas of electronics, such as in oscillators and active filters. A receiver circuit that used regeneration in a more complicated way to achieve even higher amplification, the superregenerative receiver, was invented by Armstrong in 1922. It was never widely used in general receivers, but due to its small parts count is used in a few specialized low data rate applications, such as garage door openers, wireless networking devices, walkie-talkies and toys.
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