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Variable-Speed Single-Phase Full-Wave Fan
Variable-Speed Single-Phase Full-Wave Fan

... Current limit resistor is connected in a return path of H Bridge connection. This input is connected to the SENSE pin where the Current is limited when the voltage across this resistor crosses the voltage at VLIM Pin. If not used, this pin needs to be connected to ground. 7.3.5 Speed Output The spee ...
laboratory works semiconductor electronics
laboratory works semiconductor electronics

HMC679LC3C
HMC679LC3C

Advanced Monolithic Systems
Advanced Monolithic Systems

... AMS303 is an open collector with a very low supply current of typical 7uA. The advantage of this product is the small space package and simplicity of application. It operates from as low as +2.7V to +15Vand the output pull-up resistor could be biased from higher or lower voltage then Vcc. When a lar ...
TSL257T HIGH-SENSITIVITY LIGHT-TO
TSL257T HIGH-SENSITIVITY LIGHT-TO

... Supply voltage, VDD (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 V Output current, IO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Student Activity DOC
Student Activity DOC

... 3. Replace the resistor with a light bulb. Select the resistor and select . to remove it. Select the light bulb button and place it in the open space. Grab and drag the wires from either side and connect them to each end of the light bulb. You may need to move the leads of the voltmeter in order to ...
Document
Document

... A diode is a component that stops current flowing in one direction, but allows it to flow readily in the other, providing it is over a certain voltage. ...
Profesor Facultad de Minas, Universidad Nacional de Colombia
Profesor Facultad de Minas, Universidad Nacional de Colombia

FSL306LR Green Mode Fairchild Buck Switch  FSL306LR — Green Mode Fair
FSL306LR Green Mode Fairchild Buck Switch FSL306LR — Green Mode Fair

... (FB_OLP), Abnormal Over-Current Protection (AOCP), and Thermal Shutdown (TSD). All of the protections operate in Auto-Restart Mode. Since these protection circuits are fully integrated inside the IC without external components, reliability is improved without increasing cost and PCB space. If a faul ...
Lecture 22: Class C Power Amplifiers
Lecture 22: Class C Power Amplifiers

Direct Drive Lead Acid Battery Desulfator (Type−3 "Jackhammer")
Direct Drive Lead Acid Battery Desulfator (Type−3 "Jackhammer")

... CLEAN OFF EXCESS FLUX!!! Resistors made by left over flux will cause the 555 to lock up. All 3 brands of my 555’s had a +3v spike on the top of the square wave and −3v spike below ground. This was somewhat minimized after the output was hooked to a load. D51, D52, and D53 are 1n4148’s to help protec ...
KENWOOD TL-922 (TL-922A, TL922) MODIFICATIONS
KENWOOD TL-922 (TL-922A, TL922) MODIFICATIONS

... to 240 or down to 220 Volt. The present line voltage in the Netherlands is only 228 V. If you set in the 220 V position you get more power-out, but your valve filament voltage is to high. However if you select 240 V, you will have the correct filament voltage of between 4.85 and 4.95 Volts, but your ...
PGA Amplifier Version 2 (PGAV2) Introduction
PGA Amplifier Version 2 (PGAV2) Introduction

Chapter 3 - Ohm`s Law
Chapter 3 - Ohm`s Law

... The power rating is the maximum amount of power that a resistor can dissipate without being damaged by excessive heat buildup – When a resistor is used in a circuit, its power rating should be greater than the maximum power that it will have to handle ISU EE ...
MOSFETS SOT-323 Plastic-Encapsulate  2SK3018
MOSFETS SOT-323 Plastic-Encapsulate 2SK3018

... JIANGSU CHANGJIANG ELECTRONICS TECHNOLOGY CO., LTD ...
Tutorial 10
Tutorial 10

... (b) Explain what is meant by an e.m.f. of 6.0 V. (a) The internal resistance can be seen as connecting in series with the resistor of 2.9 Ω. Thus the current flowing through both are the same. E = I (R + r) 6.0 = I (2.9 + 0.40) I = 1.818 ...
12 – A, Second Floor, Yusuf Sarai, New Delhi
12 – A, Second Floor, Yusuf Sarai, New Delhi

... Q23. When an alternating voltage of 220V is applied across a device X, a current of 0.5A flows through the circuit and is in phase with the applied voltage. When the same voltage is applied across another device Y, the same current again flows through the circuit but it leads the applied voltage by ...
RSR025N03
RSR025N03

... No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Up ...
Chapter 9 – Network Theorems
Chapter 9 – Network Theorems

ADP1612 数据手册DataSheet 下载
ADP1612 数据手册DataSheet 下载

... INDUCTOR SELECTION The inductor is an essential part of the step-up switching converter. It stores energy during the on-time, and transfers that energy to the output through the output rectifier during the offtime. Use inductance in the range of 4.7 μH to 22 μH. In general, lower inductance values h ...
Dual Differential Line Driver With 3-State Outputs
Dual Differential Line Driver With 3-State Outputs

... drive nor load the bus. This permits many devices to be connected together on the same transmission line for ...
opamp application using lm335-semiconductor temperature sensor
opamp application using lm335-semiconductor temperature sensor

... output of U1,U2 and U3 are indicated. Calculate the unknown values for the circuit in figure 1 (including V3 DC source) so that the output voltage of the circuit will be Output voltage equal changetoper degree change in but temperature known as temperature sensitivity. temperature in °C in mVs. isFo ...
Drive circuit basics
Drive circuit basics

... current decay as the counter voltage is only two diode voltage drops and the resistive voltage drop across the winding resistance. At phase shift the current will decay rapidly as both conducting transistors are turned off. For high speed halfstepping a rapid decay to zero in the half step position ...
NTE2708 Integrated Circuit
NTE2708 Integrated Circuit

... Integrated Circuit NMOS, 8K UV EPROM, 450ns Description: The NTE2708 is an ultra–violet light–erasable, electrically programmable read only memory. It has 8, 192 bits organized as 1024 words of 8–bit length. This device is fabricated using N–channel silicon– gate technology for high speed and simple ...
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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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