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SP3227E 数据资料DataSheet下载
SP3227E 数据资料DataSheet下载

... The SP3224E/3225E are 2-driver/2-receiver devices and the SP3226E/SP3227E are 1driver/1-receiver devices. All are ideal for computer peripherals, point-of-sale equipment, consumer and embedded applications. These devices use an internal high-efficiency, charge-pump power supply that requires only 0.1 ...
LM74670-Q1 Zero IQ Smart Diode Rectifier
LM74670-Q1 Zero IQ Smart Diode Rectifier

... diodes in a bridge rectifier application. The LM74670-Q1 is designed to control a single N-Channel MOSFET in a full or half bridge rectifier as replacement for diode. In a full bridge rectifier, each diode can be replaced by the LM74670-Q1 and a MOSFET. Diodes used in bridge rectifiers cause high po ...
全面认识开关型电源中的 BUCK-BOOST 应用报告 ZHCA041–1999年3月–2002年11月修订
全面认识开关型电源中的 BUCK-BOOST 应用报告 ZHCA041–1999年3月–2002年11月修订

... The two different modes are discussed in greater detail later and design guidelines for the 功率级可以在连续电感器电流和非连续电感器电流模式下工作 连续电感器电流模式在稳态工作 inductor value to maintain a chosen mode of operation as a, function of rated load are given. 时 整个开关周期内都有电流连续通过电感器 非连续电感器电流模式是开关周期内的一部分时间 It is,very desirable for a ...
Word - Minuteman UPS
Word - Minuteman UPS

Design Guide
Design Guide

... Meeting EMI and ESD requirements and achieving maximum line performance depends on good design practices. These practices minimize high-speed digital switching noise, common-mode noise, and provide shielding between internal circuits and the environment. Good design practices apply throughout the en ...
Impedance Measurements, Computations and their
Impedance Measurements, Computations and their

... with the normalized shunt impedance Rs=Q and in most cases also with the quality factor Q. In this calculation the coupling of the mode to a beam traversing the object with the speed of light is considered and expressed by the so-called transit time factor. Such programs can also calculate deflectin ...
YR80.242 - PULS Power Supply
YR80.242 - PULS Power Supply

... This device may only be installed and put into operation by qualified personnel. This device does not contain serviceable parts. If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for inspection. Mount the unit on a DIN-rai ...
Advanced Non-Inverting Step up/down Converter with LQR Control
Advanced Non-Inverting Step up/down Converter with LQR Control

SP3281
SP3281

... The SP3281EB is compatible with low voltage logic down to 1.8V using a logic select pin (VL) which conditions the logic inputs and outputs to be compatible with system logic. The SP3281EB uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation ...
Buck converter
Buck converter

... Capacitors tend to keep the voltage constant (voltage “inertia”). An ideal capacitor with infinite capacitance acts as a constant voltage source. Thus, a capacitor cannot be connected in parallel with a voltage source or a switch (otherwise KVL would be violated, i.e. there will be a short-circuit) ...
Quasi-resonant control with XMC1000
Quasi-resonant control with XMC1000

... Switched-mode power supplies have become a crucial component in many devices we use in daily life. In the past, they were often implemented using simple circuitry. As the market demands smaller, lighter and more efficient power supplies, many control schemes have been invented to address such requir ...
pspice - MavDISK
pspice - MavDISK

... The AC analysis will apply a sinusoidal voltage whose frequency is swept over a specified range. The simulation calculates the corresponding voltage and current amplitude and phases for each frequency. When the input amplitude is set to 1V, then the output voltage is basically the transfer function. ...
pspice - Penn Engineering - University of Pennsylvania
pspice - Penn Engineering - University of Pennsylvania

... The AC analysis will apply a sinusoidal voltage whose frequency is swept over a specified range. The simulation calculates the corresponding voltage and current amplitude and phases for each frequency. When the input amplitude is set to 1V, then the output voltage is basically the transfer function. ...
SP3223E 数据资料DataSheet下载
SP3223E 数据资料DataSheet下载

... capacitors are used they should be oriented as shown in the Typical Operating Circuit. The V+ capacitor may be connected to either ground or Vcc (polarity reversed.) ...
Magnetics Booklet v.3
Magnetics Booklet v.3

... internal voltage) and matched impedance between different parts of electrical circuits. This allows these circuits to be placed in close proximity on the same board so they can handle voltage signals without causing circuit damage or data distortion. Its main function in Broadband/RF Applications (C ...
EC-505 - ITM GOI
EC-505 - ITM GOI

... frequency path to the input of a non-inverting operational amplifier. The amplifier is configured as a voltage-follower (Buffer) giving it a DC gain of one, Av = +1 or unity gain as opposed to the previous passive RC filter which has a DC gain of less than unity. The advantage of this configuration ...
To Filter or Divert?
To Filter or Divert?

... To get a better understanding of the let through voltages associated with higher energy surges, 1.2/50us 20kV, 8/20us 9kA surges have been included. Lower let through voltages provide better protection for more sensitive equipment. Some surge protection manufacturers use lower voltage components to ...
Manual EN - Amazon Web Services
Manual EN - Amazon Web Services

... to operate your new amplifier. This booklet contains important • Do not attempt to remove or break off the ground prong from the electrical cord. This prong is used to reduce the risk of elec- information concerning the proper and safe operation of your new amplifier. trical shock and fire i ...
Characteristics of Interleaved PFC Stages
Characteristics of Interleaved PFC Stages

... lieu of a bigger one, which may be more difficult to design. Practically, two 150 W PFC stages are combined to form our 300 W PFC pre-regulator. This approach has several merits like the ease of implementation, the use of more but smaller components or a better heat distribution. Also, Interleaving ...
SP3232EH 数据资料DataSheet下载
SP3232EH 数据资料DataSheet下载

... devices ideal for portable or hand-held applications. The SP3232EH transceiver meets the EIA/TIA-232 and ITU-T V.28/V.24 communication protocols and can be implemented in battery-powered, portable, or hand-held applications such as notebook or palmtop computers. The SP3232EH device features Exar's p ...
Directivity and VSWR Measurements
Directivity and VSWR Measurements

... is how well the impedance of the load matches to the impedance of the source. This match determines how much power can be delivered and how much will be reflected back to the transmitter as measured by the return loss, or ratio of reflected power to transmitted power. Traditionally this quality of a ...
Preparation of Papers in a Two-Column Format for the
Preparation of Papers in a Two-Column Format for the

... alterations are currently accomplished, as example: to substitute incandescent lamps by fluorescent lamps, the use of electronic ballasts in place of magnetic ballasts the use of more efficient fixtures and lamps. For more efficient fluorescent lamps, the latest technologies have been incorporated a ...
SP3491 数据资料DataSheet下载
SP3491 数据资料DataSheet下载

... The SP3490 and the SP3491 are +3.3V low power full duplex transceivers that meet the specifications of the RS-485 and RS-422 serial protocols. These devices are pin-to-pin compatible with the Sipex SP490 and SP491 devices as well as popular industry standards. The SP3490 and the SP3491 feature Sipex ...
PAM2306 Description Pin Assignments
PAM2306 Description Pin Assignments

... 2. support or sustain life and whose failure to perform when properly used in accordance with instructions for use provided in the labeling can be reasonably expected to result in significant injury to the user. B. A critical component is any component in a life support device or system whose failur ...
CHEC Generation Guide
CHEC Generation Guide

... concerned. These types include: (a) solid-state or static inverters, (b) induction machines, and (c) synchronous machines. Many smaller renewable energy systems produce grid quality AC power through an inverter and are therefore typically grouped together. Induction and synchronous generators, on th ...
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Islanding

Islanding refers to the condition in which a distributed generator (DG) continues to power a location even though electrical grid power from the electric utility is no longer present. Islanding can be dangerous to utility workers, who may not realize that a circuit is still powered, and it may prevent automatic re-connection of devices. For that reason, distributed generators must detect islanding and immediately stop producing power; this is referred to as anti-islanding.The common example of islanding is a grid supply line that has solar panels attached to it. In the case of a blackout, the solar panels will continue to deliver power as long as irradiance is sufficient. In this case, the supply line becomes an ""island"" with power surrounded by a ""sea"" of unpowered lines. For this reason, solar inverters that are designed to supply power to the grid are generally required to have some sort of automatic anti-islanding circuitry in them.In intentional islanding, the generator disconnects from the grid, and forces the distributed generator to power the local circuit. This is often used as a power backup system for buildings that normally sell their excess power to the grid.
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