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pasive filters - Portal UniMAP
pasive filters - Portal UniMAP

CircuitI_exp081411498038
CircuitI_exp081411498038

... After the circuit is drawn and the source is specified with its attributes, we need to add some specifications for the transient analysis. These specifications control the simulation time and the display of output variables. ► Final Time specifies how long the simulation should run. In other words, ...
File
File

...  Electric loads in a _________________________________ than electric loads in a similar parallel circuit. ...
CIRCUIT FUNCTION AND BENEFITS CIRCUIT DESCRIPTION
CIRCUIT FUNCTION AND BENEFITS CIRCUIT DESCRIPTION

... Figure 1) features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic, using the separate VIO supply. Excellent layout, grounding, and decoupling techniques must be utili ...
Signal Resistance of the Current Mirror
Signal Resistance of the Current Mirror

Lecture material
Lecture material

... This is caused by a phenomenon called the skin effect. At radio frequencies, current flow is limited to the outermost area of a conductor; thus, the higher the frequency, the smaller the effective area and the greater the resistance. Consequently, the quality factor (Q = XL/R) of the tank circuits r ...
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MAX7036 300MHz to 450MHz ASK Receiver with Internal IF Filter General Description
MAX7036 300MHz to 450MHz ASK Receiver with Internal IF Filter General Description

... has a power-down pin to put it in a low-current sleep mode, making it ideal for cost- and power-sensitive applications. The low-noise amplifier (LNA), phaselocked loop (PLL), mixer, IF filter, received-signalstrength indicator (RSSI), and baseband sections are all on-chip. The MAX7036 uses a very-lo ...
The MOSFET as an Amp..
The MOSFET as an Amp..

... A: Since in cutoff and saturation d VO d VI  0 , a small change in input voltage VI will result in almost no change in output voltage VO . Contrast this with the active region, where d VO d VI  1 . This means that a small change in input voltage VI results in a large change in the output voltageV ...
AN849 Basic PICmicro Oscillator Design
AN849 Basic PICmicro Oscillator Design

EE2003 Circuit Theory
EE2003 Circuit Theory

... voltage source or a resistor. • A node is the point of connection between two or more branches. • A loop is any closed path in a circuit. • A network with b branches, n nodes, and l independent loops will satisfy the fundamental ...
section 26 23 00 - low voltage switchgear
section 26 23 00 - low voltage switchgear

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Circuits - Camden Central Schools

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... 1. Describe the structure of: (a) an intrinsic semiconductor (b) an n type extrinsic semiconductor 2. Explain why the addition of an impurity of different valency does not affect the overall charge on the semiconductor. 3. Explain why the resistance of an NTC thermistor falls with increasing tempera ...
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The Kirchoff Laws

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The diagram below shows an incomplete parallel circuit and
The diagram below shows an incomplete parallel circuit and

Principles of oximetry
Principles of oximetry

... precise, so that the results are highly reproducible with a low scatter, but have a high bias so that the results are not centered on the true values. In contrast, a unit may have a very low bias, but have poor precision, with values swinging widely from side to side of the true value. In clinical p ...
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Practical Phase-Locked Loop Design

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a AN-584 APPLICATION NOTE
a AN-584 APPLICATION NOTE

... external presence of an additional input and output. The additional input, VOGM, controls the output commonmode voltage. The additional output is the analog complement of the single output of a conventional op amp. For its operation, the AD813x makes use of two feedback loops as compared to the sing ...
< 1 ... 335 336 337 338 339 340 341 342 343 ... 524 >

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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