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Lab 1 - UCSD CSE
Lab 1 - UCSD CSE

Elimination of the motor neutral voltage
Elimination of the motor neutral voltage

... Elimination of the motor neutral voltage:  The neutral voltage is not required in the proposed method, only the three motor terminal voltages need to be detected. Elimination of the fixed phase shift circuit:  The proposed specific average line to line voltage inherently lags 30 electric degrees c ...
MAX6971 16-Port, 36V Constant-Current LED Driver General Description Features
MAX6971 16-Port, 36V Constant-Current LED Driver General Description Features

... or more LED supplies. Bypass each supply to GND with a 0.1µF capacitor as close to the MAX6971 as possible. This is normally adequate for static LED driving. For multiplex or PWM applications, it is necessary to add an additional bulk electrolytic capacitor of 4.7µF or more to each supply for every ...
Circuit design (cont.)
Circuit design (cont.)

Emf and Internal Resistance
Emf and Internal Resistance

Download
Download

International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1688-1695
International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1688-1695

... multilevel inverter can be chosen arbitrarily, so the output voltage of the inverter can reach high level even without the use of transformer. In addition, due to the step characteristic, the output voltage can be almost sinusoidal which, in turn, decrease the size of the filter. There are three com ...
OP177
OP177

... different output voltages. This nonlinearity causes errors in high closed-loop gain circuits. It is important to know that the manufacturer’s AVO specification is only a part of the solution because all automated testers use endpoint testing and, therefore, show only the average gain. For example, F ...
Sensor Technology
Sensor Technology

Solid State Relays Input Resistor Selection
Solid State Relays Input Resistor Selection

... VOL is the low-level output of the driving logic gate or the collector-emitter voltage of the driving logic transistor I F is the forward current through the LED In choosing appropriate input resistors for a design, parameter variations must be considered. For the power source, consider power supply ...
12_emf_and_power
12_emf_and_power

... [A] The power dissipated by the resistor doubles and the resistance doubles. [B] The power dissipated by the resistor quadruples and the resistance doubles. [C] The power dissipated by the resistor doubles and the resistance is unchanged. [D] The power dissipated by the resistor quadruples and the r ...
Motor Wiring Diagram
Motor Wiring Diagram

Individual-phase decoupled P–Q control of three
Individual-phase decoupled P–Q control of three

DS1816 3.3V EconoReset with Open Drain Output FEATURES
DS1816 3.3V EconoReset with Open Drain Output FEATURES

... 3. A 1kW external pull-up resistor may be required in some applications for proper operation of the microprocessor reset control circuit. 4. Measured with RST output open. 5. Measured with 2.7V £ VCC £ 3.3V. 6. tR = 5ms 7. VOH and IOH are a function of the value of RP and the associated output load ...
Short Catalog 12 Halaman.cdr
Short Catalog 12 Halaman.cdr

... Counter threshold IEC 60-1and 1180-1 (minimal discharge current detected) Maximum discharge current detected in compliance with IEC 60-1 and 1180-1 Permanent working current Terminal capacity Necessary circuit breaker Operating temperature range Protection index Dimensions Weight ...
The A40 Power Amplifier
The A40 Power Amplifier

... Q11 and R8 serve to feed current to the diodes D1 D2 which provide the voltage reference for the current sources. Q11 and R8 form a current source themselves, and used instead of a resistor to bias the diodes, they provide a higher power supply rejection for the negative half of the circuit. This lo ...
Slide 1
Slide 1

... Line regulation The percentage change in output voltage for a given change in input (line) voltage. Load regulation The percentage change in output voltage for a given change in load current. Linear regulator A voltage regulator in which the control element operates in the linear region. Switching A ...
View Slide
View Slide

... • Static power dissipation • when the device is OFF • leakage current • Dynamic power dissipation • when the device is ON • switching • Short-circuit power dissipation • when Vdd and Gnd are shorted ...
DY34760764
DY34760764

... voltages sinusoidal, it makes no effect on each lineto-neutral voltage. Meanwhile, the capacitors C, resistor R and common-mode transformer L1 and L2 forms the common-mode voltage filter for the purpose of mitigating common-mode voltage generated. It can be shown that the network of capacitors C has ...
three phase transformers three phase system basics
three phase transformers three phase system basics

Using DSP Hybrids in High Power Applications Initial Design Tips
Using DSP Hybrids in High Power Applications Initial Design Tips

Introduction to Photovoltaic Systems Maximum Power Point Tracking
Introduction to Photovoltaic Systems Maximum Power Point Tracking

BD8184MUV
BD8184MUV

... the sufficient margin so that these two values are within the standard value range. (3) Selecting the Input Capacitor Since the peak current flows between the input and output at the DC/DC converter, a capacitor is required to install at the input side. For the reason, the low ESR capacitor is recom ...
LMV761, LMV762/Q - Texas Instruments
LMV761, LMV762/Q - Texas Instruments

... input offset voltage. The LMV761 single has a shutdown pin that can be used to disable the device and reduce the supply current. The LMV761 is available in a space-saving 6-pin SOT-23 or 8-Pin SOIC package. The LMV762 dual is available in 8-pin SOIC or VSSOP package. The LMV762Q-Q1 is available VSSO ...
CSCI 2980: Introduction to Circuits, CAD, and Instrumentation
CSCI 2980: Introduction to Circuits, CAD, and Instrumentation

... A point of connection of two or more circuit elements. A node is one end of a circuit element together with all the perfect conductor that are attached to it. ...
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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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