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High-Frequency Voltage-to-Frequency Converter
High-Frequency Voltage-to-Frequency Converter

OpAmp-tutorial
OpAmp-tutorial

High-Speed, Precision, G = 10 or G = 0.1 Difference Amplifiers
High-Speed, Precision, G = 10 or G = 0.1 Difference Amplifiers

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AIT02ZPFC 720W AC-DC Converter Module
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... When LE_ADJ is shorted to GND, the LD_EN will turn off when Vout drops to 250V. When LE_ADJ is open, the LD_EN will turn off when Vout drops to 180V A resistor connected to ground the LD_EN signal can be programmed to turn-off when the output voltage falls to a desired voltage between these two limi ...
MAX828/MAX829 Switched-Capacitor Voltage Inverters
MAX828/MAX829 Switched-Capacitor Voltage Inverters

... shifted downward by VIN volts. This connects C1 in parallel with the reservoir capacitor C2. If the voltage across C2 is smaller than the voltage across C1, then charge flows from C1 to C2 until the voltage across C2 reaches VIN. The actual voltage at the output is more positive than -VIN, since swi ...
Re-engineering the Big Muff PI - The Science of Electric Guitars and
Re-engineering the Big Muff PI - The Science of Electric Guitars and

... the collector and emitter current. The gain and output impedance are mainly determined by the feedback configuration. So let’s not suck too much juice from the battery and select RC = 47 kilohms. As noted in the small-signal analysis, the output impedance will not be equal to RC unless the value if ...
Bipolar Junction Transistors
Bipolar Junction Transistors

... as the output terminal. Delving into the internal operation of the BJT, we do indeed see diode characteristics from base to emitter (with the same polarity as V BE ) and another diode from base to collector (this time opposite to the polarity of a positive VCB ). The relative magic of the BJT is cau ...
HMC723LC3C
HMC723LC3C

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Ohm`s Law, Kirchhoff`s Law, Single loop circuits, Single node

... dependent sources, and resistors, use KCL and Ohm’s Law to solve for unknown currents and voltages OR determine relations between quantities that cannot be resolved (i.e when more unknowns than independent equations exist). ...
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Lecture12 BJT Transistor Circuits

LM8272 Dual RRIO, High Output Current Unlimited Cap Load Op
LM8272 Dual RRIO, High Output Current Unlimited Cap Load Op

... 7 Application and Implementation 7.1 Block Diagram and Operational Description A) Input Stage: As seen in Figure 35, the input stage consists of two distinct differential pairs (Q1-Q2 and Q3-Q4) in order to accommodate the full Rail-to-Rail input common mode voltage range. The voltage drop across R5 ...
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ISL6440 Datasheet

... Internal 5V Linear Regulator (VCC5) All ISL6440 functions are internally powered from an onchip, low dropout, +5V regulator. The maximum regulator input voltage is 24V. Bypass the regulator’s output (VCC5) with a 4.7µF capacitor to ground. The dropout voltage for this LDO is typically 600mV, so when ...
Data Sheet  Features General Description
Data Sheet Features General Description

... Where L1, L2, etc. are the individual losses as a percentage of input power. Although all dissipative elements in the regulator produce losses, two major sources usually account for most of the power losses: VIN quiescent current and I2R losses. The VIN quiescent current loss dominates the efficienc ...
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Low voltage CMOS 16-bit D-type latch (3-state

AC Fundamentals - New Age International
AC Fundamentals - New Age International

... constant over time. By contrast, an A.C. source of electrical power changes constantly in amplitude and regularly here. Because the changes are so regular, alternating voltage and current have a number of properties associated with any such waveform. These basic properties include the following list ...
DS90LV047A 3V LVDS Quad CMOS Differential Line Driver DS90L V047A
DS90LV047A 3V LVDS Quad CMOS Differential Line Driver DS90L V047A

... a HIGH state. This internal circuitry will guarantee a HIGH, stable output state for open inputs. 2. Terminated Input. If the DS90LV047A driver is disconnected (cable unplugged), or if the DS90LV047A driver is in a TRI-STATE or power-off condition, the receiver output will again be in a HIGH state, ...
Chem 133 – Spring 2007 – Exam #1 – March 13, 2007
Chem 133 – Spring 2007 – Exam #1 – March 13, 2007

... 17. (8 pts) For a grating with a blaze spacing of 1200blazes/mm and an incident angle of 30o for incoming radiation, what is the 1st order angle of reflection (reported in degrees) for light of ...
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DS1200HE Data Sheet - Artesyn Embedded Technologies

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LT6660 - Linear Technology

... may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The LT6660 is guaranteed functional over the operating temperature range of –40°C to 85°C. Note 3: If the parts are stored outside of t ...
Input, output and control characteristic of a transistor
Input, output and control characteristic of a transistor

... voltage is always being applied to one of the two "diode junctions". The secret to this arrangement is in the thin layer of the base zone. Charge carriers can always bridge a small gap over the junction. If the base zone is supplied with additional charge carriers by applying a voltage to it, suffic ...
A Behavioral Model for DC-DC Converters using Modelica
A Behavioral Model for DC-DC Converters using Modelica

... nents such as resistors, ideal diodes, capacitors and to form the proportional plus integral (PI) controller. two new components: a controlled current source The error signal is fed to the input of the PI controller and controller output is one that is proportional to both (CCS) and a PI controller ...
2 x 40 W/2 Ohm stereo BTL car radio power amplifier with diagnostic
2 x 40 W/2 Ohm stereo BTL car radio power amplifier with diagnostic

Lecture material (Chap. 2)
Lecture material (Chap. 2)

ADM483 数据手册DataSheet 下载
ADM483 数据手册DataSheet 下载

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Wilson current mirror



A Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a ""mirrored"" current source or sink output at the output terminal. The mirrored current is a precise copy of the input current. It may be used as a Wilson current source by applying a constant bias current to the input branch as in Fig. 2. The circuit is named after George R. Wilson, an integrated circuit design engineer who worked for Tektronix. Wilson devised this configuration in 1967 when he and Barrie Gilbert challenged each other to find an improved current mirror overnight that would use only three transistors. Wilson won the challenge.
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