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2 Impedance and Transfer Functions
2 Impedance and Transfer Functions

STA-1400 - Amplifier
STA-1400 - Amplifier

... amplifiers STA-600 and STA-1400 for the top parts in bi-amping and the STA-1000 for the bass reproduction. For the functional control, we applied the digital speaker management DSM-260. The units were tested in a small factory building ... it featured many windows, a concrete floor and several tile ...
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... The fixed-bias configuration on fig. includes the coupling capacitors C1 and C2 that isolate the dc biasing arrangement from the applied signal and load; they act as short-circuit equivalents for the ac analysis. Once the level of gm and rd are determined from the dc biasing arrangement, specificati ...
AD8273 数据手册DataSheet 下载
AD8273 数据手册DataSheet 下载

... The resistors on the AD8273 are laser trimmed and tightly matched. Specifications that depend on the resistor matching, such as gain drift, common-mode rejection, and gain accuracy, are better than can be achieved with standard discrete resistors. The positive and negative input terminals of the AD8 ...
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OT 180/120…277/700 P5
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... current to keep the output voltage controlled to the maximum allowed output voltage. _ The driver automatically reduces the output current in case the maximum allowed output power is exceeded. _ Hot-plug of the load or external switching on the secondary side is not allowed. _ The protective earth ( ...
Chapter Two Voltage and Current Measurement
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... Physics and Astronomy Outreach Program at the University of British Columbia ...
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... to signal shown in Fig 1. this voltage is known as bias voltage and it's magnitude is such that it always keep the input circuit forward biased regardless the polarity of signal. A input circuit has low resistance, therefore a small change in signal voltage causes a appreciable change in emitter cur ...
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... respectively. Besides, the converter can operate in the buck, balance and boost modes to achieve a wide voltage range. The operational principles are analyzed and experimental results of a 1-kW 100-kHz prototype are provided to verify the effectiveness of the presented converter. Existing system: Is ...
The text of the original article (Word 2000 format)
The text of the original article (Word 2000 format)

... This output is then buffered and amplified by a wideband power amplifier, comprised of Q8 through Q12. The amplifier provides a voltage gain of 5, and an output impedance of a few ohms to drive the test circuit with around 3 V p-p. The emitter follower Q8 provides a low impedance drive to a cascode ...
Sample Paper - 2008 Subject – Physics CLASS – XII Time: Three
Sample Paper - 2008 Subject – Physics CLASS – XII Time: Three

... capacitor is then disconnected from the source. If the distance between the plates is doubled, state with reasons, how the following will change. a) Electric field between the plates b) Capacitance of the capacitor and c) Energy stored in the capacitor. 20. The input resistance of a silicon transist ...
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Ultralow Distortion, Ultralow Noise Op Amp AD797

... The architecture of the AD797 was developed to overcome inherent limitations in previous amplifier designs. Previous precision amplifiers used three stages to ensure high open-loop gain (see Figure 30) at the expense of additional frequency compensation components. Slew rate and settling performance ...
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... Figure shows the basic two stage op-amp made using an NMOS diff-amp and a PMOS commonsource amplifier (M7). As seen in Fig. M7 is biased to have the same current as M3 and M4. Note also the addition of the compensating network consisting of a compensation capacitor, Cc, (Miller compensation) and a z ...
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... The capacitive load drive of the AD8005 can be increased by adding a low valued resistor in series with the capacitive load. Introducing a series resistor tends to isolate the capacitive load from the feedback loop thereby diminishing its influence. Figure 29 shows the effects of a series resistor o ...
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Physics Sample Paper for Engg Entrance Exam 1
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SILICON DESIGNS, INC.

... The case connector pins and cable connector sockets are gold plated brass. The connector shells are Nylon. The cable consists of four 28 AWG (7x36) tin-plated copper wires with Teflon FEP insulation surrounded by a 40 AWG tin plated copper braided shield. The shield jacket is Teflon FEP with a nomin ...
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... Developed specifically for wind power applications, the PowerModule™ PM3000W power converter from AMSC® introduces a new era in wind power conversion with a scalable, double conversion architecture that uses easily mountable mono-frame construction for a common building block. Advanced Grid Compatib ...
AN52 - Linear Technology Magazine Circuit Collection, Volume 1
AN52 - Linear Technology Magazine Circuit Collection, Volume 1

... over input variations and manufacturing spread in the LT1110’s on time and frequency. The circuit’s output ripple measures 200mVP-P, and efficiency is 78% at full load with a 2.4V input. Output power can be scaled down for less demanding requirements. To reduce peak current, increase the value of R1 ...
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SRM-310_Owner` Manual_E

... ● SRM-323II uses the output stage of an emitter follower to realize low impedance and increase the dynamic range in the high frequency. ● At the input-stage, a simple two-stage configuration using low-noise FET makes it possible to achieve a natural sound quality with a lot of information. ● SRM-323 ...
Avoiding Op Amp Instability Problems In Single-Supply Applications
Avoiding Op Amp Instability Problems In Single-Supply Applications

crystal oscillator
crystal oscillator

...  Class A amplifiers are biased so that they conduct continuously. The output is an amplified linear reproduction of the input.  Class B amplifiers are biased at cutoff so that no collector current flows with zero input. Only one-half of the sine wave is amplified.  Class AB linear amplifiers are ...
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Valve RF amplifier



A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical radio frequency signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching to transistors somewhat later. Specially constructed valves are still in use for very high power transmitters, although rarely in new designs.
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