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LTC4257 - IEEE 802.3af PD Power over
LTC4257 - IEEE 802.3af PD Power over

DC Coupling with 7 Series FPGAs GTX Transceivers
DC Coupling with 7 Series FPGAs GTX Transceivers

... The assumption for this example is that the TX driver is able to provide a termination voltage such that the resultant line common mode voltage is 725 mV when the RX is ground terminated. With the data available, the common mode voltage of the line is 725 mV, which appears to be a viable scenario. F ...
ADM2914 数据手册DataSheet 下载
ADM2914 数据手册DataSheet 下载

... Supply Voltage. VCC operates as a direct supply for voltages up to 6 V. For voltages greater than 6 V, it operates as a shunt regulator. A dropper resistor must be used in this configuration to limit the current to less than 10 mA. When used without the resistor, the voltage at this pin must not exc ...
AN3027 Application note How to design a transition-mode PFC pre-regulator
AN3027 Application note How to design a transition-mode PFC pre-regulator

... the frequency modulation offered by the L4981) and a considerable component count. The second one requires a simpler control (implemented by ST's L6563S), much fewer external parts and is therefore much more economical. With the first method the boost inductor works in continuous conduction mode, wh ...
BD80C0AFPS-LB
BD80C0AFPS-LB

Technote 7 Using Op Amps Successfully
Technote 7 Using Op Amps Successfully

... at the midpoint of the supplies and redefine the circuit “grounds” to that voltage. This works well. The points are that “ground” is a concept that the designer has to address, there can be multiple “grounds” in a system, and keep in mind that Op Amps have a limited operating range that is bounded b ...
assign - UMD Physics
assign - UMD Physics

... labeled with their resistances. The ammeters are ideal meters that read and respectively. The direction of each loop and the direction of each current arrow that you draw on your own circuits are arbitrary. Just assign voltage drops consistently and sum both voltage drops and currents algebraically ...
MAX17021/MAX17082/MAX17482 Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies General Description
MAX17021/MAX17082/MAX17482 Dual-Phase, Quick-PWM Controllers for IMVP-6+/IMVP-6.5 CPU Core Power Supplies General Description

... Operating Temperature Range .........................-40°C to +105°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +165°C Lead Temperature (soldering, 10s) .................................+300°C ...
Chapter 12
Chapter 12

... – conventional current flows in the opposite direction ...
Chapter 8 FET Amplifiers
Chapter 8 FET Amplifiers

... Let’s first look at an equivalent FET circuit to better understand it’s operation. The FET is basically a current source that is controlled by VGS. Note that the resistance from gate to source can be neglected since it is so large in value and in most cases the drain to source resistance (rds) can b ...
Fuses – Introductory Information
Fuses – Introductory Information

... The most important point of a fuse specification is the time/current characteristic. This curve describes the breaking behaviour of fuses in the overload range which usually covers currents from 1 x IN or 1,5 x IN (depending on type and style) up to approximately 3 x IN. Above these currents, the sh ...
Lecture 14
Lecture 14

... of MOS transistors to store logic levels (to remain charged or discharged) and by using clock signals to turn on transistors for very brief interval of time only. nMOS gate with Substrate grounded, is a fundamental component of Dynamic logic circuits. It is completely symmetrical Drain and Source te ...
Lecture Notes (6 and 7
Lecture Notes (6 and 7

Channel Noise in Excitable Neuronal Membranes
Channel Noise in Excitable Neuronal Membranes

... but does not exceed -60 mV for higher Na densities. For moderate levels of depolarization, an increase in the magnitude of the ionic current noise with voltage is the dominant factor which leads to an increase in voltage noise; for higher voltages phenomenological impedances are large and shunt awa ...
LTC3250-1.5/LTC3250-1.2 - High Efficiency, Low Noise
LTC3250-1.5/LTC3250-1.2 - High Efficiency, Low Noise

Consideration of Operating Characteristics for Bi
Consideration of Operating Characteristics for Bi

... conversion ratio of reverse direction mode using eq. (8)-(10). As shown in Fig. 4 (a), only one resonance peaks appears at fpr in the output impedance. On the other hand, there are two resonance peaks appear at fsr (series resonant peak) and fpr (parallel resonant peak) in the input impedance. The f ...
Lecture 11 - UniMAP Portal
Lecture 11 - UniMAP Portal

Active Elements for Analog Signal Processing: Classification
Active Elements for Analog Signal Processing: Classification

Methods for extra-low voltage transcranial direct current stimulation
Methods for extra-low voltage transcranial direct current stimulation

Leakage Immune Modified Pass Transistor Based 8T SRAM Cell in
Leakage Immune Modified Pass Transistor Based 8T SRAM Cell in

HMC981LP3E 数据资料DataSheet下载
HMC981LP3E 数据资料DataSheet下载

A flexible anisotropic self-powered piezoelectric nanowires configuration
A flexible anisotropic self-powered piezoelectric nanowires configuration

... charge polarity at the top of the NWs, while the bottom side has a tensile strain leading to negative charge polarity at the top of the NWs on the bottom side. So when the NGs is under bending followed by releasing, the response of the output voltage vary between positive and negative polarity for t ...
EEE-PP-007 - 4351
EEE-PP-007 - 4351

OPA2830
OPA2830

... The OPA2830 is a dual, low-power, single-supply, wideband, voltage-feedback amplifier designed to operate on a single +3V or +5V supply. Operation on ±5V or +10V supplies is also supported. The input range extends below ground and to within 1.8V of the positive supply. Using complementary common-emi ...
MAX6397/MAX6398 Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V General Description
MAX6397/MAX6398 Overvoltage Protection Switch/Limiter Controllers Operate Up to 72V General Description

... The MAX6397/MAX6398 are small, high-voltage overvoltage protection circuits. These devices disconnect the output load or limit the output voltage during an input overvoltage condition. These devices are ideal for applications that must survive high-voltage transients such as those found in automotiv ...
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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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