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Electricity Notes, Part I
Electricity Notes, Part I

Unijunction Transistor Symbol and Construction
Unijunction Transistor Symbol and Construction

... used for either switching (cut-off and saturation mode dependent) applications or for amplification (active mode operation), just like ordinary transistors. 2. The phototransistors can be configured in two different configurations viz., common collector and common emitter, depending on the terminal ...
KSA940 PNP Epitaxial Silicon Transistor Absolute Maximum Ratings
KSA940 PNP Epitaxial Silicon Transistor Absolute Maximum Ratings

... or (b) support or sustain life, or (c) whose failure to perform 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. ...
FAN2012 1.5 A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator
FAN2012 1.5 A Low-Voltage, Current-Mode Synchronous PWM Buck Regulator

... REF ...
MCH3144 数据资料DataSheet下载
MCH3144 数据资料DataSheet下载

Electronics
Electronics

as1 series compact case
as1 series compact case

... sensing switches are a cost-effective way to detect live conductors and see current flow to fans, heaters, pumps, lighting or other AC powered devices. Current Sensing Switch Applications ...
Investigating the Characteristics of Photovoltaic Panels
Investigating the Characteristics of Photovoltaic Panels

... is the external resistance that draws power and is typically varied in an experiment –ie a variable resistance ...
1422-1 Resonance and Filters - Cleveland Institute of Electronics
1422-1 Resonance and Filters - Cleveland Institute of Electronics

...  The estimated resonant frequency was the same as was found in Experiment 4 (426mA), as compared to the Iline which ...
Conceptual Tools
Conceptual Tools

download
download

... Cable insulation resistance is based on soil conditions, cable length and age, and other variables. This option will display a relative percentage leakage value. This option may also substitute for periodic circuit megger readings and provides programmable ground fault detection with two (2) levels ...
STEVAL-ISV006V2
STEVAL-ISV006V2

... based on the SPV1040 high efficiency solar battery charger with embedded MPPT. The SPV1040 device is a low power, low voltage, monolithic step-up converter with an input voltage range from 0.3 V to 5.5 V, and is capable of maximizing the energy generated by even a single solar cell (or fuel cell), w ...
Objective bits
Objective bits

Practical Electricity - The Pennsylvania Renewable Energy
Practical Electricity - The Pennsylvania Renewable Energy

... Voltage leads Current in a inductive circuit Current leads voltage in a capacitive circuit ...
Evaluates:  MAX1729 MAX1729 Evaluation Kit General Description Features
Evaluates: MAX1729 MAX1729 Evaluation Kit General Description Features

... The MAX1729 evaluation kit (EV kit) is a low-power, step-up DC-DC converter followed by a low-dropout linear regulator. It accepts a positive input voltage between 2.7V to 5.5V and converts it to an output voltage ranging from 2.5V to 16V. The output voltage is dynamically adjustable through an exte ...
2. Art of Op-Amp design
2. Art of Op-Amp design

... blocks of simple two-stage Op–amp is shown below. Each box in the figure can be replaced with an actual circuit implemented in modern VLSI technology. The topologies which a designer chooses are very much dependent upon the type of application he or she is looking for. However it may also depend on ...
The MOSFET Current Mirror
The MOSFET Current Mirror

... If the load resistor becomes larger than R +Vt 1 Iref , the ...
Phys 345 Electronics for Scientists
Phys 345 Electronics for Scientists

Simple DC circuits General rules In a series circuit it is the current
Simple DC circuits General rules In a series circuit it is the current

... is to assign a sense to the current in each of the branches of the circuit - this can be done completely arbitrarily as if you get it wrong then the value of the current will be negative. In this circuit the chosen direction of the 3 currents I1, I2 and I3 is upwards. There are 2 nodes at b and d an ...
audio amplifier - Kaushik Science Projects
audio amplifier - Kaushik Science Projects

Trench Field-Stop IGBT3 Turn-Off
Trench Field-Stop IGBT3 Turn-Off

... output capacitance Cq, which is much larger than the usual junction capacitance between collector and emitter. The tail current is described by an R-C element. The additional output capacitance varies with the amount of stored charge, which depends not only on load current but also on the time the I ...
I-1 Inductor 1 consists of a single loop of wire
I-1 Inductor 1 consists of a single loop of wire

... resistor, and a switch. The secondary coil is connected to an ammeter. When the switch is thrown closed, the ammeter shows.. A) a zero current all the time B) a non-zero current for a brief time when the switch is closed C) a steady non-zero current after the switch is closed ...
Solid State Timers and Controllers Solid State DC Flasher
Solid State Timers and Controllers Solid State DC Flasher

Take an example of CMOS transistor
Take an example of CMOS transistor

AD580 数据手册DataSheet 下载
AD580 数据手册DataSheet 下载

... of the temperature characteristic of any one of these devices to absolute zero (with an emitter current propor-tional to the absolute temperature), however, reveals that it will go to a VBE of 1.205 V at 0 K, as shown in Figure 3. Thus, if a voltage could be developed with an opposing temperature co ...
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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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