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Desing of power sources, converters
Desing of power sources, converters

... Power semiconductor converters • Equipment for changing quality of electrical energy (voltage, current, frequency, no. of phases, impedance, etc.) • Conversion of energy „nearly“ without power losses • The most often converters: – rectifiers (diodes, not controlled), – frequency converters (non-dir ...
expt10
expt10

... impedances. The circuit we will use is shown below. In this circuit resistors R 1 and R2 are used to set the base to the desired DC operating voltage. Often in circuits of this kind, one uses an input capacitor to decouple the DC voltage level of vin from the base. In the present circuit what we do ...
R 1
R 1

... Differential Gain Adm ANALOG = 5 V/5ELECTRONICS ...
45 EMD - AllianTech
45 EMD - AllianTech

... The Trig-Tek, Inc. Model 45 EMD Portable Calibrator is designed to provide precision signals for field calibration of measurement instrumentation. This hand held unit generates the required outputs to simulate a variety of transducers including: temperature, pressure and vibration, with laboratory a ...
TAT6254C 数据资料DataSheet下载
TAT6254C 数据资料DataSheet下载

... Gain control is accommodated with a low cost external PIN diode circuit placed between the input trans-impedance amplifier and the output amplifier. This helps reduce the die size of the TAT6254C and provides for excellent PIN diode distortion characteristics over a continuous control range. Up to ...
RF2480
RF2480

... the DC voltage supplied to the I SIG pin. A voltage of 3.0V is recommended. The SIG and REF inputs are inputs of a differential amplifier. Therefore the REF and SIG inputs are interchangeable. If swapping the I SIG and I REF pins, the Q SIG and Q REF also need to be swapped to maintain the correct p ...
Chapter 19 Light, Mirrors, and Lenses
Chapter 19 Light, Mirrors, and Lenses

... need a medium in which to travel. • Electromagnetic (EM) waves are waves that can travel through empty space or through matter – EM waves travel in – vacuum, air, water, glass, etc ...
national semiconductor (lmv722m) ultra low noise dual op amp
national semiconductor (lmv722m) ultra low noise dual op amp

XC2000 Logic Cell Array Families
XC2000 Logic Cell Array Families

... Input/Output Blocks, logic blocks and Interconnect. The designer can define individual I/O blocks for interface to external circuitry, define logic blocks to implement logic functions and define interconnection networks to compose larger scale logic functions. The XACT Development System provides in ...
PowerPoint – Elec L9 – V I Graphs
PowerPoint – Elec L9 – V I Graphs

... In the forward direction the line curves towards the current axis, the current is able to flow but isn’t directly proportional to potential difference. In backwards direction the resistance is very high so current cannot flow so the line is flat. ...
DG5.0 DX with ECWS Setup Instructions rev
DG5.0 DX with ECWS Setup Instructions rev

... amount of time the valve is driven is proportional to the percent opening desired and the configured time for a full stroke. The proportional output is controlled by proportional-integral logic that increases or decreases the output over time as long as the error signal is non-zero. The error is the ...
Lecture 1
Lecture 1

... Unlike electronics, there is no single device which performs many different functions. ...
DAC Presentation kit - University of Toronto
DAC Presentation kit - University of Toronto

... component for total power – Heats up the surrounding area ...
Electric Circuits
Electric Circuits

... and go the opposite way • Ex: household outlets and appliances •DC = Direct current • Charges always flow in the same direction • From negative to positive • Ex: batteries ...
G032 - Pulse Electronics
G032 - Pulse Electronics

... • Are non-intrusive – draws no power from the main circuit • Have a very wide Sensing bandwidth extending from 0.1 Hz up to 17 MHz • Measures AC signals superimposed on a large DC Current • Can measure large currents without saturating and can measure changes of current as fast as 40,000 A/μs ...
Audio PreAmp ICs
Audio PreAmp ICs

Electrical Behavior of a New Gallium Arsenide Power Schottky Diode
Electrical Behavior of a New Gallium Arsenide Power Schottky Diode

High Frequency Power Converters for Utility Applications
High Frequency Power Converters for Utility Applications

... High Frequency Power Converters for Utility Applications In the modern power electronics converter applications, the demands for reaching higher efficiency and higher power density are aligned with higher switching frequency over range of 1 MHz. Compared to silicon-based devices, GaN and SiC power c ...
appendixD
appendixD

... green wires; common or neutral, which is usually not at zero volts (but typically less than a volt or so off ground), is returned to the generator without (supposedly) touching ground, and is usually connected with white wires; and, hot, which is at nominally 170 VAC and is usually connected with bl ...
Experiment 1-6
Experiment 1-6

... In many experiments, one needs to either monitor a signal over a long period of time or measure a quantity, such as voltage and current, which may vary with time very fast. In these cases, one may use a computer to control the experiment and take data. Many experimental instruments are now equipped ...
Document
Document

... a. If Np=400, Ns=1200, and Vg =100V, find the magnitude of Ip if ZL = 9+j12 ohms. b. Find the magnitude of the voltage VL and the current IL for the conditions of part (a). ...
Capacitor Self-Resonance
Capacitor Self-Resonance

... calculation, that the output amplitude didn’t decrease in amplitude due to slew-rate limiting. If you were near the slew-rate limit in step 4, simply decrease the amplitude of the generator output and do the procedure again. Remember, slew-rate limiting is a large-signal phenomenon that can be ameli ...
250W PWM inverter circuit SG3524.
250W PWM inverter circuit SG3524.

LIA135 / LIA136 - IXYS Integrated Circuits Division
LIA135 / LIA136 - IXYS Integrated Circuits Division

... resistor’s voltage source is VOUT, the regulated power supply output. For very low voltage designs where VOUT lacks sufficient headroom to bias the input circuitry, the resistor may be sourced from an auxiliary secondary winding on the transformer. When using the LIA135 / LIA136 this is an unlikely ...
LCD_notes
LCD_notes

... The fact that phosphors emit light in all directions means that viewing angles of close to 180 degrees are possible. Phosphors have been developed over a long period of time, to the point where they offer excellent color saturation at the very small particle size required by high-resolution displays ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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