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AP8a - Sensor + Test
AP8a - Sensor + Test

DL Quench Detection System
DL Quench Detection System

... voltages over time or temperature changes. This high impedance is important and ensures that only a small amount of current is taken from the solenoid during operation. The Amplifier is protected from any voltage spikes by two opposing diodes connected across its input pins, this will minimise the i ...
Unit-7Lecture 47 Calibration of Discharge Detectors Partial
Unit-7Lecture 47 Calibration of Discharge Detectors Partial

bar graph display ic
bar graph display ic

... To reduce signal to the input, a variable resistor is needed. Otherwise all LEDs will light (in bar mode) or turn off (in dot mode). If the input is not connected to the 0 rail through a preset or resistor, Lat LED at pin10 will lock on. Supply voltage It can be as low as 3 volts. It must be at leas ...
Fully Integrated TX/RX HV ASIC design for CMUT
Fully Integrated TX/RX HV ASIC design for CMUT

... Fully Integrated TX/RX HV ASIC design for CMUT ultrasound application Kangqiao Zhao, Peng Wang, Surya Sharma, Rune Kaald, and Trond Ytterdal Department of Electronics and Telecommunications, NTNU Ultrasound imaging is a non-invasive technique for medical diagnosis, which becomes a common practice fo ...
AN1694: The Four Basic Building Blocks of an Op Amp
AN1694: The Four Basic Building Blocks of an Op Amp

... the differential pair (and the inputs of the op amp) work. Achieving the 2:1 function is easier than you might expect. In the differential circuit shown in Figure 3, there are two inputs and two outputs. A 2:1 circuit would only have one output. Ok, then let's ignore one of the outputs. That may see ...
Plastic Fiber Optic Photologic Detectors IF
Plastic Fiber Optic Photologic Detectors IF

Three-Level Shunt Active Filter Compensating Harmonics and
Three-Level Shunt Active Filter Compensating Harmonics and

... a shunt active power filter, making use of the multilevel inverter advantages of better total harmonic distortion, reduced semiconductor switches ratings and reduced switching losses. This inverter is based on typical PWM and is employed as active powers filter (APF) used to compensate reactive powe ...
starter / generator motor controller
starter / generator motor controller

... 4 GEN - This connection is used to put the MSK 4413 into GENERATOR MODE and manage power from the connected motor as it is being spun and place that power onto the bus connection. V+ is applied to this pin to select this mode. As with the START pin this can be done with a manual switch or some type ...
LM6172 Dual High Speed, Low Power, Low Distortion, Voltage
LM6172 Dual High Speed, Low Power, Low Distortion, Voltage

... The LM6172 is a dual high speed voltage feedback amplifier. It is unity-gain stable and provides excellent DC and AC performance. With 100 MHz unity-gain bandwidth, 3000V/µs slew rate and 50 mA of output current per channel, the LM6172 offers high performance in dual amplifiers; yet it only consumes ...
Chapter 7 - St. Thomas the Apostle School
Chapter 7 - St. Thomas the Apostle School

... Resistance- The tendency for a material to oppose the flow of electrons, changing electrical material into thermal energy and light. • All materials have some electrical resistance • Resistance is measured in Ohms • Making wires thinner, longer, or hotter increases the resistance. ...
DS3695A/DS3695AT/DS3696A Multipoint RS485/RS422 Transceivers
DS3695A/DS3695AT/DS3696A Multipoint RS485/RS422 Transceivers

... mode range ( a 12V to b7V), for multipoint data transmission. In addition they are compatible with requirements of RS-422. The driver and receiver outputs feature TRI-STATE capability. The driver outputs remain in TRI-STATE over the entire common mode range of a 12V to b7V. Bus faults that cause exc ...
BITX40 with Raduino - tips and mods
BITX40 with Raduino - tips and mods

... Along with a current limiting resistor in series with the LED. A 12 V LED, which would have an internal current limiting resistor, can be connected directly across the relay. Most red LED's have a forward voltage of about 1.65v, so at 12V that would be anywhere between 1K to 1.2K series resistor for ...
MTEC - UCF EECS
MTEC - UCF EECS

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Physics 3 - NYCC SP-01

BITX40 with Raduino - tips and mods
BITX40 with Raduino - tips and mods

Unit 7: Electrical Circuits and Systems Review KEY
Unit 7: Electrical Circuits and Systems Review KEY

DSS2x101-015A
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uv tron® driving circuit c3704 series
uv tron® driving circuit c3704 series

... Note 3: No load can be driven by an output from points “1” and “2” because these signals are output from the only C-MOS IC directly. When a load such as a buzzer and a relay is connected to this circuit, it should be connected to the point open collector output. The transistor ratings of the open co ...
Slide 1
Slide 1

... Linear Circuit  obeys Ohm’s Law (i.e. v α i or v = Ri)  if the i or v in any part of the circuit is sinusoidal, the i and v in every other part of the circuit is sinusoidal and of the same frequency Non-linear circuits do not obey Ohm’s Law. Circuit Elements:  Active – supply energy: voltage or ...
foreign voltage guide by country
foreign voltage guide by country

Lab 4: Small-Signal Modeling of BJT Amplifiers
Lab 4: Small-Signal Modeling of BJT Amplifiers

Direct current (DC) supply grids for LED-Lighting
Direct current (DC) supply grids for LED-Lighting

... The rectifier is the essential element and is typically a bridge rectifier consisting of four diodes. The electrolytic capacitor (elcap) levels out the pulsating rectified sinusoidal voltage. Recently IEC SC77A WG1 agreed to a new review of the standard IEC 61000-3-2, which means that in the near f ...
DC684A - Linear Technology
DC684A - Linear Technology

... This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing- ...
Line Transformer - Selection Guide
Line Transformer - Selection Guide

... Isolation Transformers: Used for maximum safety, versatility (can be used on both electrical & electronic equipment) and isolation from the power source, used to step-up, step-down or for straight isolation. The disadvantage to using them is weight (about double the "Auto"), more expensive and large ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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