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transistor bias circuits
transistor bias circuits

Chapter 5 Lecture Notes - the GMU ECE Department
Chapter 5 Lecture Notes - the GMU ECE Department

LM2704 Micropower Step-up DC/DC Converter
LM2704 Micropower Step-up DC/DC Converter

... turns off the NMOS switch. The SW voltage will then rise to the output voltage plus a diode drop and the inductor current will begin to decrease as shown in Figure 3. During this time the energy stored in the inductor is transferred to COUT and the load. After the 400ns off-time the NMOS switch is t ...
Circuits
Circuits

... wall outlet as shown below. Bulb #1 is 100W and Bulb #2 is 40W. Which statement is true? 1) Both bulbs are at their normal brightness. 2) The 100W bulb is brighter than the 40W bulb. 3) The 40W bulb is brighter than the 100W bulb. 4) Both bulbs are at equal brightness. ...
MAX16128/MAX16129 Load-Dump/Reverse-Voltage Protection Circuits General Description Features
MAX16128/MAX16129 Load-Dump/Reverse-Voltage Protection Circuits General Description Features

Low Voltage Or Dead Cell In The Battery
Low Voltage Or Dead Cell In The Battery

2017-electric-circuits-1oyiem3
2017-electric-circuits-1oyiem3

... The voltmeter will read 12 V, since the potential difference across the resistor must be equal to the potential difference across the battery. As we will see later, if there were more than one resistor in the circuit, there would not necessarily be 12 volts across each. The power can be found by P = ...
UC2874-2 数据资料 dataSheet 下载
UC2874-2 数据资料 dataSheet 下载

Design Review: Isolated 50 Watt Flyback Converter Using the
Design Review: Isolated 50 Watt Flyback Converter Using the

... the average forward current rating of the device. If the maximum working peak reverse voltage is exceeded the reverse leakage current will rise above its specified limit. The peak reverse voltage that the device will be subjected to is equal to the reflected maximum input voltage minus the voltage d ...
L6375D
L6375D

... Diagnostic logic The operating conditions of the device are permanently monitored and the following occurrences are signalled via the DIAG1/DIAG2 open drain output pins, see Table 6: Diagnostic truth table. ...
DNF7
DNF7

... • Ideal to convey high current load ...
A New PSPICE Subcircuit for the Power MOSFET Abstract AN-7510
A New PSPICE Subcircuit for the Power MOSFET Abstract AN-7510

... A gate to source input capacitance is represented by CIN. MOSFET output capacitance is provided by model DBDMOD as described above. Feedback capacitance is provided by DPLCAP as defined by model DPLCAPMOD. A diode was used for this function to provide a square root dependency with drain to source vo ...
EET 114 PowerPoint Slides - Sinclair Community College
EET 114 PowerPoint Slides - Sinclair Community College

pdf - CHIC
pdf - CHIC

... This limitation has made it more attractive to pursue alternative approaches, such as distributed oscillators. Distributed amplifiers have been studied for over 50 years [2][3][4]. Skvor, et al proposed to build a VCO by operating a distributed amplifier in the reverse gain mode, using the output fr ...
ECE3030 Physical Foundations of Computer Engineering, Fall 2015
ECE3030 Physical Foundations of Computer Engineering, Fall 2015

... 1) (10 pts.) You need to drive a load of 1 pF. Your first stage gate has a capacitance of 7 fF. How many stages do you need to minimize the total delay? 2) (10 pts.) Define the following terms: a) Noise Margin b) Dynamic Power c) Static Power d) Leakage Current 3) (10 pts.) Consider an inverter in a ...
The following demo shows how to utilize the wattmeter instrument. In
The following demo shows how to utilize the wattmeter instrument. In

LECTURE.2.Electricity
LECTURE.2.Electricity

... points, energy is stored. This stored energy is called ELECTRICAL POTENTIAL or ...
Choose the Right Regulator for the Job: Part 1, Regulator Control
Choose the Right Regulator for the Job: Part 1, Regulator Control

EXP 4
EXP 4

... The circuit shown in Figure 2 is a first order low-pass filter (LPF). Here the dc voltage Vc is used to supply the dc biasing current IABC which in turn determines gm. The analysis of this circuit is simple provided you recognize that the Darlington pair attached at the output of OTA is just a buffe ...
UC2577-ADJ 数据资料 dataSheet 下载
UC2577-ADJ 数据资料 dataSheet 下载

FL77904 - Phase-cut Dimmable Compact LED Direct AC Driver
FL77904 - Phase-cut Dimmable Compact LED Direct AC Driver

a High Speed, Low Power Dual Op Amp AD827
a High Speed, Low Power Dual Op Amp AD827

... leads and a large ground plane are needed whenever possible to provide low resistance, low inductance circuit paths. One should remember to minimize the effects of capacitive coupling between circuits. Furthermore, IC sockets should be avoided. Feedback resistors should be of a low enough value that ...
BDTIC C C M - P F C
BDTIC C C M - P F C

... The compensation of the current loop is implemented at the ICOMP pin. This is OTA6 output and a capacitor CICOMP has to be installed at this node to ground (see Figure 8). Under normal mode of the operation, this pin gives a voltage which is proportional to the averaged inductor current. This pin is ...
MAX750A/MAX758A Adjustable, Step-Down, Current-Mode PWM Regulators _______________General Description
MAX750A/MAX758A Adjustable, Step-Down, Current-Mode PWM Regulators _______________General Description

... system coupled with a simple step-down (buck) regulator topography. Input voltages range from 4V to 11V for the MAX750A, and from 4V to 16V for the MAX758A. The current-mode PWM architecture provides cycle-bycycle current limiting, improved load transient response characteristics, and simpler outer- ...
AdvLessons#11
AdvLessons#11

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TRIAC



TRIAC, from triode for alternating current, is a genericized tradename for an electronic component that can conduct current in either direction when it is triggered (turned on), and is formally called a bidirectional triode thyristor or bilateral triode thyristor.TRIACs are a subset of thyristors and are closely related to silicon controlled rectifiers (SCR). However, unlike SCRs, which are unidirectional devices (that is, they can conduct current only in one direction), TRIACs are bidirectional and so allow current in either direction. Another difference from SCRs is that TRIAC current can be enabled by either a positive or negative current applied to its gate electrode, whereas SCRs can be triggered only by positive current into the gate. To create a triggering current, a positive or negative voltage has to be applied to the gate with respect to the MT1 terminal (otherwise known as A1).Once triggered, the device continues to conduct until the current drops below a certain threshold called the holding current.The bidirectionality makes TRIACs very convenient switches for alternating-current (AC) circuits, also allowing them to control very large power flows with milliampere-scale gate currents. In addition, applying a trigger pulse at a controlled phase angle in an AC cycle allows control of the percentage of current that flows through the TRIAC to the load (phase control), which is commonly used, for example, in controlling the speed of low-power induction motors, in dimming lamps, and in controlling AC heating resistors.
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