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50 mA, 24 V, 3.2-uA Supply Current, Low Dropout, Linear Regulator
50 mA, 24 V, 3.2-uA Supply Current, Low Dropout, Linear Regulator

Paper Title (use style: paper title)
Paper Title (use style: paper title)

Current E1ectrici1y
Current E1ectrici1y

... portional to the square of the current. 37. Critical Thinking When demand for elec tric power is high, power companies some times reduce the voltage, thereby producing a “brown out” \‘hat is being saved? Power, not energy; most devices will have to run longer. ...
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... high side MOSFET RDSON multiplied by the switch current squared. During the off cycle, the low side N-channel MOSFET conducts, also dissipating power. Device operating current also reduces efficiency. The product of the quiescent (operating) current and the supply voltage represents another DC loss. ...
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Electric Circuit Lab
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... determine the resistance for each resistor with Ohm’s law always connect the voltmeter in parallel, ammeter in series draw circuit diagrams for parallel ...
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... • The number of Distinct Analog Outputs • Can be Unipolar or Bipolar - See Figure 14-1 page 402 • chart shown in Figure 14-1(c) graphically shows the relationship between digital inputs and analog outputs for a Bipolar output 3-bit DAC » With a 000 input the output = (-) Input Reference Voltage » Wi ...
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1. What is the voltage across the 20Ω resistor? a. 0 V b. 2 V c. 3 V d
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... 29.In the circuit (below and right), the brightly-illuminated reverse-biased photodiode operates in which quadrant of the IV characteristic curve (shown at the bottom of the page)? Assume that the reverse bias current is less than 100 O and the turn on voltage is less than 1 V. a. Quadrant A deliver ...
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... connected in series, parallel, and series/parallel. You will be familiar with operation of an ohmmeter and learn how to hook-up electrical circuit. Equivalent Resistance Resistors can be connected in series or in parallel in electric circuits. When resistors are connected in series, they share the s ...
250mA High Speed Buffer BUF634
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< 1 ... 653 654 655 656 657 658 659 660 661 ... 984 >

Current mirror

A current mirror is a circuit designed to copy a current through one active device by controlling the current in another active device of a circuit, keeping the output current constant regardless of loading. The current being 'copied' can be, and sometimes is, a varying signal current. Conceptually, an ideal current mirror is simply an ideal inverting current amplifier that reverses the current direction as well or it is a current-controlled current source (CCCS). The current mirror is used to provide bias currents and active loads to circuits. It can also be used to model a more realistic current source (since ideal current sources don't exist).The circuit topology covered here is one that appears in many monolithic ICs. It is a Widlar mirror without an emitter degeneration resistor in the follower (output) transistor. This topology can only be done in an IC as the matching has to be extremely close and cannot be achieved with discretes.Another topology is the Wilson mirror. The Wilson mirror solves the Early effect voltage problem in his design.
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