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9-1 A 0.026mm2 Capacitance-to-Digital Converter for Biotelemetry
9-1 A 0.026mm2 Capacitance-to-Digital Converter for Biotelemetry

IOSR Journal of Applied Physics (IOSRJAP)
IOSR Journal of Applied Physics (IOSRJAP)

Basic Properties Terminology Theory
Basic Properties Terminology Theory

... predominantly capacitive at any frequency of interest. This is because the capacitive reactance also varies approximately linearly with 1/f. At higher currents, at and above the milliamp range, temperature variation becomes minimal. The plot of the temperature coefficient (DV/DT) is given in Figure ...
ee141_hw5_sol
ee141_hw5_sol

... VDSAT,n = 0.63; VDSAT, p = -1V; kn’ = 115x10-6 A/V2; kp’ = -30x10-6 A/V2;  = 0;  = 0; a) Vin = 0V; and the capacitor is fully charged. B switches from 0V to VDD instantly. Explain what happens at Node X? What is the propagation delay, tp , as seen at X? B turns on NMOS pass transistor. Node X is p ...
Chapter 1: Semiconductor Diodes
Chapter 1: Semiconductor Diodes

630ES Checkout Routine (PART 2)
630ES Checkout Routine (PART 2)

... The AMPTEC 630ES measures DC resistance with a 4 Wire Kelvin technique. Two of the wires Current high and Current Low pass through the resistance under test in a current loop - as part of a failsafe constant current source with only 5 mA in the current loop. It doesn't matter if the test leads are l ...
Chapter 28
Chapter 28

... terminal voltage exceed the emf? Choose your answer from the same possibilities as in part (i). 28_c28_p794-828 Chapter 28 7. What is the time constant of the circuit shown in Figure OQ28.7? Each of the five resistors has resistance R, and each of the five capacitors has capacitance C. The internal ...
Ultralow Distortion IF VGA AD8375
Ultralow Distortion IF VGA AD8375

... the device. Generally, the larger the inductance of the choke, the higher its parasitic capacitance. Therefore, the value and type of the choke should be chosen keeping this trade-off in mind. ...
Three-Phase Current Measurement
Three-Phase Current Measurement

... The inverter consists of three halfbridge units with top and bottom transistors. The shunt resistors (R1, R2 and R3) used for current sensing are placed below the bottom transistors of the corresponding phase. In some cases, it is possible to reconstruct the three-phase current just from a DC link s ...
Datasheet - Texas Instruments
Datasheet - Texas Instruments

Zener Diodes
Zener Diodes

... Zener diodes regulate voltage by acting as complementary loads, drawing more or less current as necessary to ensure a constant voltage drop across the load. This is analogous to regulating the speed of an automobile by braking rather than by varying the throttle position: not only is it wasteful, bu ...
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11 - HCC Learning Web

... equivalent resistance depends on the voltage applied across the group. (d) The equivalent resistance is equal to the sum of the resistances in the group. (e) None of those statements is correct. 2. Several resistors are connected in series. Which of the following statements is correct? Choose all th ...
Why Isn`t There Enough Power To Start My Bike!?!
Why Isn`t There Enough Power To Start My Bike!?!

... wattage, but they aren't the only example. Sometimes you have a load like an amplifier/radio. An amplifier/radio can be rated by wattage, but that is supposed to be a measure of how much power is available to produce the music. It is not a measure of the total power used by the unit because it doesn ...
Amateur Extra Licensing Class
Amateur Extra Licensing Class

... the quality factor, Q, is: ...
TPA0252 数据资料 dataSheet 下载
TPA0252 数据资料 dataSheet 下载

RF5924 2.4GHz TO 2.5GHz, SINGLE-BAND FRONT-END MODULE Features
RF5924 2.4GHz TO 2.5GHz, SINGLE-BAND FRONT-END MODULE Features

... the overall 802.11b/g solution. The FEM has integrated b/g power amplifier, power detector, RX balun and TX filtering. Also it is capable of switching between WiFi RX, WiFi TX, and BTH RX/TX operations. It has low insertion loss at the 2.4GHz to 2.5GHz WiFi and BTH paths. The device is manufactured ...
SP339 数据资料DataSheet下载
SP339 数据资料DataSheet下载

... receiver (1TX/1RX) in both half and full duplex configurations. The RS-232 mode (3TX/5RX) provides full support of all eight signals commonly used with the DB9 RS-232 connector. A dedicated diagnostic loopback mode is also provided. The high speed drivers operate up to 20Mbps in RS485/422 modes, and ...
4 - Binus Repository
4 - Binus Repository

... due to each source acting alone and obtain the total response by adding the individual phasors. If the sources have different frequencies, then superposition can still be used but its application is different. With different frequency sources, each source must be treated in a separate steady-state a ...
DAC8222 数据手册DataSheet 下载
DAC8222 数据手册DataSheet 下载

... ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the DAC8222 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to ...
Solving more complex resistor networks
Solving more complex resistor networks

...  Ammeters are placed in series with a circuit element, so they will experience the same current as it. ...
MAX9508 CVBS/S-Video Filter Amplifier with SmartSleep and Bidirectional Video Support General Description
MAX9508 CVBS/S-Video Filter Amplifier with SmartSleep and Bidirectional Video Support General Description

... The MAX9508 video filter amplifier with SmartSleep and bidirectional video support is ideal for set-top boxes (STBs), portable DVD players, and portable media players (PMPs). The inputs can be directly connected to the digital-to-analog converter (DAC) outputs. The reconstruction filter removes high ...
LTC6802-2 - Multicell Addressable Battery Stack Monitor
LTC6802-2 - Multicell Addressable Battery Stack Monitor

The Pervasive  Maxwell  Demon Dan Vue 15 March
The Pervasive Maxwell Demon Dan Vue 15 March

... state transition probability and approximating it with an effective Fokker-Planck equation. In this section, General Theory, we will introduce the Langevin equation (as a prerequisite to using the Fokker-Planck equation), then the FokkerPlanck equation itself. The Langevin equation, which describes ...
APV25S0 - Calibration Circuit
APV25S0 - Calibration Circuit

UM0243
UM0243

< 1 ... 94 95 96 97 98 99 100 101 102 ... 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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