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Modules and Gate Driver Boards
Modules and Gate Driver Boards

Phoenix: an Ultra-Low Power Processor for Cubic
Phoenix: an Ultra-Low Power Processor for Cubic

... While the CPU and other logic modules can be power gated, SRAM modules such as IMEM and DMEM cannot be gated due to their data retention requirement. Consequently these modules dominate standby power consumption. Therefore we place emphasis on low leakage SRAM design. Both IMEM and DMEM use the bitc ...
Cast Iron Resistors
Cast Iron Resistors

... Galvanized housing front plates and stainless steel cover plates Adjustment of steps possible due to large number of terminals High reliability because elements are connected with bolts For short-term loads, cast-iron elements with a double storage capacity are available UL certification available, ...
Design of CMOS Crystal Oscillator with Low Power
Design of CMOS Crystal Oscillator with Low Power

... consumption and thereby affecting the life of battery, especially in low-power micro-controllerunit(MCU) and watch system. This issue is extremely important in the node of electronic system in mobile society. Low power CMOS crystal oscillators have either been optimized for low current or for have l ...
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSRJEEE)

... disturbances. In order to overcome these problems the concept of custom power devices is introduced recently. One of those devices is the Dynamic Voltage Restorer (DVR), which is the most efficient and effective modern custom power device used in power distribution networks. DVR is a recently propos ...
Volts, Amps and Ohms – Measuring Electricity
Volts, Amps and Ohms – Measuring Electricity

Exp.1: Linear Variable Differential Transformer (LVDT) Transducers
Exp.1: Linear Variable Differential Transformer (LVDT) Transducers

... As the core moves, these mutual inductances change, causing the voltages induced in the secondaries to change. The coils are connected in reverse series, so that the output voltage is the difference (hence "differential") between the two secondary voltages. When the core is in its central position, ...
ENT 163 04-08 - Portal UniMAP
ENT 163 04-08 - Portal UniMAP

... by an equivalent circuit consisting of a current source IN in parallel with a resistor RN, where IN is the short circuit consisting of a current through the terminals and RN is the input or equivalent resistance at the terminals when the independent sources are turned off. We find RN in the same way ...
DC shunt motor DC series motor
DC shunt motor DC series motor

... shown. With full field, the motor runs at its minimum speed which can be raised in steps by cutting out some of the series turns. ...
oscilloscopes in electronic instrumentation
oscilloscopes in electronic instrumentation

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A. Eddy current losses - Electrical and Computer Engineering

... great influence, since the ferroresonance phenomena are strongly related to this nonlinear function. Very often, the question to be answered for estimating the risk of ferroresonance or designing a damping circuit is : what is the lower bound of the voltage source for which a given kind of ferroreso ...
questions to answer
questions to answer

... and light bulb 2 _______________ , current in the circuit _______________, and the total resistance of the 2 bulbs (add the resistances together in a series circuit)__________________. Sketch your circuit and label the current, voltage, and resistance of each part. 4) Predict what these values will ...


... the fundamental frequency switching method, space vector control method [16], traditional pulse width modulation (PWM) control method and space vector PWM method [15, 17]. A large number of these methods which minimize the computational intricacy and obtaining good results have been proposed in the ...
12-Bit, Voltage Output DIGITAL-TO
12-Bit, Voltage Output DIGITAL-TO

... The reference inputs, VREFL and VREFH, can be any voltage between VSS + 2.25V and VDD – 2.25V provided that VREFH is at least 1.25V greater than VREFL. The minimum output of each DAC is equal to VREFL plus a small offset voltage (essentially, the offset of the output op amp). The maximum output is e ...
412 Laboratory 5 new..
412 Laboratory 5 new..

... Q6: Now what is the apparent (measured) small-signal gain (it’s not the open-circuit gain!) Av=vo(t)/vi(t) ? Analyze the circuit with the small-signal model and RL= 510  attached and calculate Av. How do the measured and calculated values of Av compare? Q7: Compare the voltage gain you measured/ca ...
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... The CMOS inverter is formed by connecting an n-type transistor and a p-type transistor in series, with the p-type inverted to operate from a single-voltage supply, as shown in Fig.1.3. The transfer characteristic of the inverter is also shown. The critical logic voltages, defined at the points on th ...
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ZXTN25020DFL 20V, SOT23, NPN low power transistor Summary

... Zetex Semiconductors is committed to environmental excellence in all aspects of its operations which includes meeting or exceeding regulatory requirements with respect to the use of hazardous substances. Numerous successful programs have been implemented to reduce the use of hazardous substances and ...
Analog Dialogue 30-4
Analog Dialogue 30-4

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An Analysis of Output Ripples for PMOS Charge Pumps and Design

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Data Sheet - Energy Recovery Products

... •  12 V/100 mA auxiliary output •  ProtecNons: output open load, short-circuit (latch-off), and overtemperature with auto recovery •  Conducted and radiated EMI: Compliant with FCC CFR Title 47 Part 15 Class A (120 and 277 Vac) and EN55015 (CISPR 15) at 220/230/240 Vac •  Enables ENERGY STAR® an ...
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NCP1608 Critical Conduction Mode PFC Controller Utilizing a Transconductance Error

MAX9993 EV kit
MAX9993 EV kit

... As the differential IF outputs are relatively high impedance (200Ω), they are more susceptible to component parasitics. It is often good practice to relieve the ground plane directly underneath large components to reduce associated shunt-C parasitics. ...
here
here

... off. But for this exercise you are to control the motor with a signal that is proportional to another, analog, signal. To do this you will use a technique called pulse width modulation, or PWM. This technique is useful because transistors can be used either fully on (voltage is close to zero, so pow ...
Instructions for Authors of Papers Submitted for - HAL
Instructions for Authors of Papers Submitted for - HAL

Average Power
Average Power

... P  S cos(v  i ) S  Vrms I rms S is known as the apparent power. ...
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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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