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DC CIRCUIT EXERCISE
DC CIRCUIT EXERCISE

Basic Concepts
Basic Concepts

... The rkk terms are the sum of all resistances in mesh k. The rkj terms are the negative sum of the resistances common to BOTH mesh k and mesh j. ...
BD244/ A/B/ C PNP Epitaxial Silicon Transistor
BD244/ A/B/ C PNP Epitaxial Silicon Transistor

... when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
circuit - Portal UniMAP
circuit - Portal UniMAP

...  If the positive terminal of voltage is met first: +V  If the negative terminal of voltage is met first: -V Without the +/- sign, KVL formula can be written as Sum of voltage drops = sum of voltage rises ...
past paper questions electrical circuits
past paper questions electrical circuits

Experiment I : Input and Output Impedance
Experiment I : Input and Output Impedance

... by choosing various combinations of resistances on the resistor board or using your variable resistor box. It is important to note that the insertion of ammeter A introduces a small series resistance into the circuit and the insertion of voltmeter V introduces a large resistance in parallel with R. ...
I COM V
I COM V

... Consider any two-terminal lumped element with terminals A and B as shown in Figure 1. It may be a resistor, inductor or diode. To suggest this generally , we refer to the two-terminal element as a branch. The reference direction for the voltage is indicated by the plus and minus symbols located near ...
SITOP Power Supply
SITOP Power Supply

... practice, ohmic resistances of the feed and return wires to and from the fault location often prevent this maximum current from flowing. Already at a loop impedance of only 0.4 Ohm (for a wire with a cross section of 1mm2, this corresponds to a distance of only 11m between power supply and load), a ...
Circuit Analysis Slides
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... ■ Being able to find the values for current can tell you a lot about a circuit. It is a few simple calculations away from finding voltage and power, which at the end of the day can also be used to calculate how much money operating electronics may cost. ...
network theorems module
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... When zeroing a voltage source, it becomes a short circuit. When zeroing a current source, it becomes an open circuit. We can find the Thévenin resistance by zeroing the sources in the original network and then computing the resistance between the terminals. ...
Corel Ventura - LH0032.CHP
Corel Ventura - LH0032.CHP

... Because the input devices are FETs, the input bias current may be expected to double for each 11oC junction temperature rise. This characteristic is plotted in the typical performance characteristics graphs. The device will self-heat due to internal power dissipation after application of power thus ...
Zero-Drift, Single-Supply, Rail-to-Rail I/O Quad, Operational Amplifier
Zero-Drift, Single-Supply, Rail-to-Rail I/O Quad, Operational Amplifier

... The AD8574-EP provides benefits previously found only in expensive auto-zeroing or chopper-stabilized amplifiers. Using a patented spread-spectrum, auto-zero technique, the AD8574 eliminates the intermodulation effects from interaction of the chopping function with the signal frequency in ac applica ...
AD8614 数据手册DataSheet 下载
AD8614 数据手册DataSheet 下载

... As with any semiconductor device, whenever the condition exists for the input to exceed either supply voltage, attention needs to be paid to the input overvoltage characteristic. As an overvoltage occurs, the amplifier can be damaged, depending on the voltage level and the magnitude of the fault cur ...
Primary switch mode power supply CP
Primary switch mode power supply CP

... picture. For that the device is set with its mounting rail slide on the upper edge of the mounting rail and locked by lifting it downwards. ...
Lecture 7: Hybrid Transistor Model for small AC :
Lecture 7: Hybrid Transistor Model for small AC :

... Typical values for the h parameters for a 2N3904 transistor in the common emitter configuration: hfe = 120, hoe = 8.7x10-6 Ω-1, hie = 3700 Ω, hre = 1.3x10-4 for IC = 1 mA ...
Lecture 7: Hybrid Transistor Model for small AC :
Lecture 7: Hybrid Transistor Model for small AC :

TDA1574 Integrated FM tuner for radio receivers
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... printed-circuits with high population densities. In these situations reflow soldering is often used. ...
DC Voltage and Current Sense PCB with Analog Output
DC Voltage and Current Sense PCB with Analog Output

3.2 The Wien Bridge Oscillator
3.2 The Wien Bridge Oscillator

... normal and the saturation voltage is at least VBE.) The common-collector - common-emitter (CC-CE), common-collector-common-collector (CCCC), and Darlington configurations are all closely related. They incorporate an additional transistor to boost the current gain and input resistance of the basic bi ...
Circuit Characteristics
Circuit Characteristics

... to the output terminals, unlike 74H and 74S where it is returned to ground which is a more power consuming configuration. This configuration allows the output to pull up to one VBE below VCC for low values of output current. The F00 output includes clamping diodes to limit undershoot and control rin ...
KSA1010 KSA101 0 PNP Epitaxial Silicon Transistor
KSA1010 KSA101 0 PNP Epitaxial Silicon Transistor

... device or system whose failure to perform can be or (b) support or sustain life, or (c) whose failure to perform reasonably expected to cause the failure of the life support when properly used in accordance with instructions for use device or system, or to affect its safety or effectiveness. provide ...
DC to DC Isolated Converter
DC to DC Isolated Converter

... Prices as of April 27, 2016. Check Web site for most current prices. ...
BarkerSwansonMorgan_Lab3-+BJT
BarkerSwansonMorgan_Lab3-+BJT

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Download PGR-4704 Datasheet
Download PGR-4704 Datasheet

Physics 2415 Lecture 24: Circuits with AC Source
Physics 2415 Lecture 24: Circuits with AC Source

... Something surprising happens if ω L = 1/ ωC —there is no phase lag, and the current amplitude is given by Ohm’s law for the resistor alone! Notice this is the same value of ω at which a pure LC circuit oscillates. This is resonance: the driving frequency coincides with the natural frequency of the c ...
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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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