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512 X 18 First-In, First-Out
512 X 18 First-In, First-Out

... Voltage applied to a disabled 3-state output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.6 V Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Stor ...
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Variable Resistors - La Favre home page
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MEASUREMENT OF THE ZERO.SEQUENCE CURRENT DI
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... the fault, the distribution of the zero-sequcncc current fllywing from thc ground wires to earth yaries in the yicinity of the fault. The types of faults in a system ,I-ith effcctiycly grounded ncutrals are thc single-phase and double-phase-toground faults. AccOl'ding to the fault statistics of the ...
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... 3V version) from VOUT during normal operation. During shutdown, the resistor divider is disconnected from the output and the part draws only leakage current from the output. During no-load conditions, applying a 1Hz to 100Hz, 2% to 5% duty cycle signal to the SHDN pin ensures that the circuit of Fig ...
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... 22.An electric bulb is rated as 10 W, 220 V. How many of these bulbs can be connected in parallel across the two wires of 220 V supply line if the maximum current which can be drawn is 5 A. 23.How much work is done in moving a charge of 2 coulombs from a point at 118 volts to a point at 128 volts? 2 ...
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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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