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One of the most common applications questions on opera-
One of the most common applications questions on opera-

... 2V +VS = 15V limitation. Figure 1b shows an application where the input less than 2V will not be accurately handled by the op amp. 大器”则能很好的应对此类特殊的应用。尽管如此, signal is referencedopto amp” ground.would In thishandle case, input of A “single-supply this signals particular +VS = 15V 仍可采用许多不同的方式将标准的运算放大器用于 ...
Optimal output filter design for microprocessor
Optimal output filter design for microprocessor

MC34151, MC33151 High Speed Dual MOSFET Drivers
MC34151, MC33151 High Speed Dual MOSFET Drivers

SN65HVD179 数据资料 dataSheet 下载
SN65HVD179 数据资料 dataSheet 下载

... only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltage values, except differential I/O bu ...
DS2741 Current Monitor and Accumulator with Integrated Sense Resistor General Description
DS2741 Current Monitor and Accumulator with Integrated Sense Resistor General Description

... accumulation IC that is intended for current-monitoring applications. The differential voltage measured across the on-chip 38mΩ sense resistor is digitized by an internal ADC that provides an accurately scaled digital signed 10-bit value that represents bidirectional current up to ±2.5A. The measure ...
3 nV/√Hz, Low Power Instrumentation Amplifier AD8421
3 nV/√Hz, Low Power Instrumentation Amplifier AD8421

... 200 fA/√Hz current noise with only 2 mA quiescent current, making it an ideal choice for measuring low level signals. For applications with high source impedance, the AD8421 employs innovative process technology and design techniques to provide noise performance that is limited only by the sensor. T ...
MC34152 - High Speed Dual MOSFET Drivers
MC34152 - High Speed Dual MOSFET Drivers

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LM101A, LM201A, LM301A

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GPUVolt: Modeling and Characterizing Voltage Noise in GPU

master specification - OPS Schneider Electric
master specification - OPS Schneider Electric

... 2. The PMAC instrument can be direct panel mounted in a 92mm x 92mm (3.6 in x 3.6 in) panel cutout, using sliding clamps tightened by thumbscrews. 3. The PMAC instrument supports direct display of all parameters on the front panel or remote display in user programmable groups, using plain language l ...
ADM3307E 数据手册DataSheet 下载
ADM3307E 数据手册DataSheet 下载

... is also provided. While in shutdown, one receiver remains active (two receivers active with ADM3310E), thereby allowing monitoring of peripheral devices. This feature allows the device to be shut down until a peripheral device begins communication. ...
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Starting High Inertia Loads - Rockwell Automation Knowledgebase

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Infineon Power LED Driver

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A METHOD FOR CHARACTERIZATION OF THREE

... types of transformer connection. It was further assumed that positive and negative-sequence source impedances are equal. This resulted in four types of three-phase unbalanced sag, shown as a phasor diagram in Figure 2. Type A is due to three-phase faults, types B, C and D are due to single-phase and ...
LF353-N 数据资料 dataSheet 下载
LF353-N 数据资料 dataSheet 下载

... A feedback pole is created when the feedback around any amplifier is resistive. The parallel resistance and capacitance from the input of the device (usually the inverting input) to AC ground set the frequency of the pole. In many instances the frequency of this pole is much greater than the expecte ...
S. Lim, J. Ranson, D.M. Otten and D.J. Perreault, Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage, IEEE Transactions on Power Electronics , Vol. 30, No. 2, pp. 805-816, Feb. 2015.
S. Lim, J. Ranson, D.M. Otten and D.J. Perreault, Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage, IEEE Transactions on Power Electronics , Vol. 30, No. 2, pp. 805-816, Feb. 2015.

... The first stage is a variable-topology SC circuit that requires only two energy transfer capacitors and provides nearly continuous input and output currents. To create a suitable intermediate voltage over which the second (regulation) stage can run, the SC transformation stage is operated in differen ...
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Application Note for Switching Mode Power Supply Design with

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MAX1513/MAX1514 TFT-LCD Power-Supply Controllers General Description Features

... for startup sequencing. The MAX1513 includes an additional linear-regulator controller and a high-performance buffer amplifier. The MAX1513/MAX1514 can operate from 2.7V to 5.5V input supplies and provide overload protection with timer delay latch on all the regulated outputs. The step-up regulator ...
A Higher Voltage Multilevel Inverter with Reduced Number of Power
A Higher Voltage Multilevel Inverter with Reduced Number of Power

... levels. Based on this technical background, this paper levels. The first cell dc voltage supply Vdc is added if switch suggests a novel topology for a three phase five-level T1 is turned ON leading to Vmg =+Vdc where Vmg is the multilevel inverter. The number of switching devices, voltage at node (m ...
DT1140-04LP Features Mechanical Data
DT1140-04LP Features Mechanical Data

... Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: ...
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ZXGD3112N7 Description Applications Features Mechanical Data

MAX1647/MAX1648 Chemistry-Independent Battery Chargers _______________General Description ____________________________Features
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... MAX1647 functions as a level 2 charger, compliant with the Duracell/Intel Smart Battery Charger Specification. The MAX1648 omits the SMBus serial interface, and instead sets the charge voltage and current proportional to the voltage applied to external control pins. In addition to the feature set re ...
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Understanding of tuning techniques of converter controllers for VSC

NiCD/NiMH Fast-Charge Management ICs (Rev. A)
NiCD/NiMH Fast-Charge Management ICs (Rev. A)

... The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers ...
Single phase controller with digital interface
Single phase controller with digital interface

... The PM7744 is a single phase PWM controller that provides complete control logic and protections to realize a general DC-DC step-down converter. With its high level of integration, this 16-pin device allows a reduction of the cost and size of the power supply solution and also provides real-time Pow ...
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Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
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