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... to the “Type B” filter is used for the pre-lock lowpass filter to obtain phase lock quickly, within 0.5 seconds as demonstrated by the zero phase error. A similar filter to the “Type D” filter, with significantly overdamped characteristics, is used after phase lock because this filter rejects higher ...
A unique, low- voltage, source- coupled J-FET VCO
A unique, low- voltage, source- coupled J-FET VCO

... value of the feedback capacitor. If the shunt capacitor is required, attention should be paid to the fact that both the feedback capacitor and the shunt capacitor are connected in series to ground. And the series capacitance of these two capacitors is directly connected, in parallel, to the resonant ...
CR14 - Atos
CR14 - Atos

... The flamepaths are specified in the manutacturer drawings. Far information regarding the dimenslons of the flameproof joints the manufacturer shall be contacted. For the selection of connecting cable with operating temperature suitable for the installation conditions of equipment refer to the manufa ...
UCC5614 数据资料 dataSheet 下载
UCC5614 数据资料 dataSheet 下载

HMC492LP3 / 492LP3E
HMC492LP3 / 492LP3E

... connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. This evaluation board is designed for single ended input testing. J2 a ...
Arc Series
Arc Series

... quality of power provided by the network. Consequently, c o n n e c t i o n re s t r i c t i o n s o r m a x i m u m i m p e d a n c e requirements permitted by the network at the public network connection point must be applied to these systems. In this case the installer or the user is responsible ...
Getting the Best Performance from AC to DC Power
Getting the Best Performance from AC to DC Power

... The segment of power electronics is growing with a faster rhythm than other sectors, as a matter of fact, thanks to increasing research on intelligent, reliable, energy efficient and environmentally sustainable solutions, necessarily linked to the world of power. In this dynamic context, Power Fortr ...
MAX9987/MAX9988 +14dBm to +20dBm LO Buffers/Splitters with ±1dB Variation General Description
MAX9987/MAX9988 +14dBm to +20dBm LO Buffers/Splitters with ±1dB Variation General Description

... The MAX9987/MAX9988 LO amplifiers/splitters each consist of a single input amplifier, a two-way passive power splitter, two separate output amplifiers, as well as a third buffer amplifier to drive the LO’s PLL. The bias currents for the amplifiers are adjustable through off-chip resistors. This allo ...
TLE6254-3G - Infineon Technologies
TLE6254-3G - Infineon Technologies

... enabled by the INH output. The WAKE input reacts to both, transition from high to low voltage level as well as the other way round. To avoid faulty wake-ups due to transients on the bus lines or the WAKE input circuitry respectively, a certain filter time is implemented. As soon as VCC is provided, ...
Improved Hybrid Amplifier Efficiency Using SiGe
Improved Hybrid Amplifier Efficiency Using SiGe

... silicon-on-glass technology, these varactor topologies were used to implement two continuous-tunable matching networks, which provide low-loss and lowdistortion and a 1:10 impedance transformation range [9]. In this paper we present for the first time, a complete amplifier with reconfigurable input ...
HMC493LP3 / 493LP3E
HMC493LP3 / 493LP3E

... connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used to connect the top and bottom ground planes. The evaluation circuit board shown is available from Hittite upon request. This evaluation board is designed for single ended input testing. J2 a ...
Evaluates: MAX2181 MAX2181 Evaluation Kit
Evaluates: MAX2181 MAX2181 Evaluation Kit

NTD20N03L27 - Power MOSFET, 20 A, 30 V, N
NTD20N03L27 - Power MOSFET, 20 A, 30 V, N

Aalborg Universitet QFT Framework for Robust Tuning of Power System Stabilizers
Aalborg Universitet QFT Framework for Robust Tuning of Power System Stabilizers

... From technical point of view, QFT as a graphical tool (i.e., that can graphically show the robust performance and robust stability bounds simultaneously with the specification of the operating point response) can provides simple tuning and protection abilities. The mentioned advantages suggest, “QFT ...
Powercut 900
Powercut 900

... cover's rear panel are not blocked with packaging material that can prevent the air flow through the power source. The power source has a lifting eyelet and can be lifted easily. Check that the lifting equipment that is to be used can withstand the weight of the power source. The weight is stated in ...
LT6100/LT6017 - Dual/Quad 3.2MHz, 0.8V/μs Low Power, Over-The-Top Precision Op Amp
LT6100/LT6017 - Dual/Quad 3.2MHz, 0.8V/μs Low Power, Over-The-Top Precision Op Amp

... MSOP .............................................................. 300°C ...
GE - ECM Motor Technology and Troubleshooting
GE - ECM Motor Technology and Troubleshooting

... • Uses logic in Circuit Board of outdoor unit – Control Board sends a PWM signal to the motor – Signal can be read with a “DC” volt meter, with motor at full speed (22º90º) at PW1, ...
TRANSIENT VOLTAGE SURGE SUPPRESSORS 16709
TRANSIENT VOLTAGE SURGE SUPPRESSORS 16709

P84233
P84233

... Table 2B: Current Ratings (AMPS) for 12VDC Models Maximum RMS Current Voltage 121575W DC 8-17.5VDC ...
AN1282 - NXP Semiconductors
AN1282 - NXP Semiconductors

SP720, SP721 and SP723 Turn-On and Turn-Off
SP720, SP721 and SP723 Turn-On and Turn-Off

INTRODUCTION
INTRODUCTION

... transformers for converting from one voltage level to another protective devices, such as circuit breakers, ...
$doc.title

... The input uses a small CMOS inverter stage with a low input capacitance, so no drive energy is needed. The output LOW is bipolar (Q4) with a small (M7) in parallel, and the output HIGH is a combination of a bipolar transistor (Q2) and PMOS (M4) to pull the output to the full Vcc. Bipolar transistors ...
ALP20 and ALT20/21 Series, +85°C
ALP20 and ALT20/21 Series, +85°C

... Apply the rated voltage to the capacitor at room temperature for a period of one hour, or until the leakage current has fallen to a steady value below the specified limit. During re-aging a maximum charging current of twice the specified leakage current or 5 mA (whichever is greater) is suggested. ...
OKI-78SR Series
OKI-78SR Series

... All models regulate within specification and are stable under no load to full load conditions. Operation under no load might however slightly increase output ripple and noise. Temperature Derating Curves The graphs in this data sheet illustrate typical operation under a variety of conditions. The Der ...
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Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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