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Experiment 6 Transistors as amplifiers and switches
Experiment 6 Transistors as amplifiers and switches

AD8032 AnaDev, dual 80MHz.pdf
AD8032 AnaDev, dual 80MHz.pdf

... transition temperature of the plastic, approximately 150°C. Exceeding this limit temporarily can cause a shift in parametric performance due to a change in the stresses exerted on the die by the package. Exceeding a junction temperature of 175°C for an extended period can result in device failure. W ...
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Current Transformers Ratio / Polarity / Types

Chapter 28: Electrical Circuits
Chapter 28: Electrical Circuits

Lecture08: Multi-Loop and RC Circuits
Lecture08: Multi-Loop and RC Circuits

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Benefits of a multiphase buck converter

... low-voltage converter applications with currents of up to approximately 25 A, but power dissipation and efficiency start to become an issue at higher currents. One suitable approach is to use a multiphase buck controller. This article briefly dis­cusses the benefits of using a multiphase buck conver ...
Driving LEDs with a PIC Microcontroller Application Note
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... The multiplexer can be digitally controlled by the microcontroller. Each LED is assigned an address which allows it to be selected by the PIC, in order to determine the current passing through the diode for current regulation or to assist in failure recognition. ...
The Capacitor
The Capacitor

... Objective: To study the properties of capacitance as they concern the discharge of a capacitor through a resistor. DISCUSSION: A capacitor is a device for storing charge. In its simplest form it may be thought of as two parallel conducting plates which lie very close to one another but which are ele ...
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Lecture Notes File

Slide 1
Slide 1

DETERMINATION OF ELEMENT SENSITIVITY WITHOUT
DETERMINATION OF ELEMENT SENSITIVITY WITHOUT

PGA205 数据资料 dataSheet 下载
PGA205 数据资料 dataSheet 下载

... Figure 1 shows the basic connections required for operation of the PGA204/205. Applications with noisy or high impedance power supplies may require decoupling capacitors close to the device pins as shown. The output is referred to the output reference (Ref) terminal which is normally grounded. This ...
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... The STUSB03E is designed to provide USB connectivity in mobile systems where available system supply voltages are not able to satisfy USB requirements. The STUSB03E can operate down to supply voltages of 1.6V and still meet USB physical layer specifications. As shown in the circuit above, the STUSB0 ...
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... signal to the dimming FET, and output connection of the transconductance amplifier. When the PWM dimming signal is HIGH, the gates of the switching FET and dimming FET are enabled. At the same time, the output of the transconductance op-amp is connected to the compensation network. This allows the b ...
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LP38512-ADJ - Texas Instruments

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... negative feedback a proportion of the output signal is 'fed-back' to the input so that it cancels out some of the input signal and reduces the apparent voltage gain of the whole circuit. With an opamp, negative feedback is the only way of controlling the voltage gain of the circuit. The voltage gain ...
Low Power Extended Range DC Motor Controller
Low Power Extended Range DC Motor Controller

... that is going through the armature. The armature resistance of the motor is known and can be measured by connecting the terminals of the motor into an ohmmeter. We thus obtained a value of Ra ≈ 1Ω. Although the armature resistance is not constant for the motor, it is approximated to 1 ohm as it usua ...
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Mini Buck Converters for RF Power Amplifiers
Mini Buck Converters for RF Power Amplifiers

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USB Proceedings 2016 IEEE International Power Electronics and

... select where to apply the university and research centre funds. In this difficult situation we are even prouder, since at this 17th edition, we have 268 submitted papers, while 195 papers are to be presented. We have now more participants, coming from a greater number of countries (more than 45), in ...
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The DatasheetArchive - Datasheet Search Engine

Electrical Engineering Full Day Lesson Plan
Electrical Engineering Full Day Lesson Plan

... is resistance. Before we talk about resistance, let’s talk about wires. Can anyone tell me what a wire is? (something that conducts electricity, a piece of metal). Yes, a wire is all of these things. But primarily, a wire is something that guides electrons to flow where we want them to. So, you can ...
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运算放大器系列AD8022 数据手册DataSheet 下载

... While the AD8022 is internally short-circuit protected, this may not be sufficient to guarantee that the maximum junction temperature (150°C) is not exceeded under all conditions. To ensure proper operation, it is necessary to observe the ...
TPS60200 数据资料 dataSheet 下载
TPS60200 数据资料 dataSheet 下载

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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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