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DRV11873 12-V, 3-Phase Sensorless BLDC Motor Controller (Rev. A)
DRV11873 12-V, 3-Phase Sensorless BLDC Motor Controller (Rev. A)

... winding resistance and low inductance, the FS pin should be pulled high. For low speed fan motors with high motor winding resistance and high inductance, the FS pin should be pulled low. Through FS pin selection, DRV11873 can be used for wide applications from low-speed refrigerator cooling fans to ...
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PASCAL
PASCAL

... o Operating instrument and indicating functions at convenient height. The standard cubicle is designed for IPH 4X and IPH 5X protection as defined in IEC. Higher degree of protection, if required can be provided as an option. The cubicle offers lowest Width and Depth (600mms X 1740 mms) as well as l ...
DRV591 数据资料 dataSheet 下载
DRV591 数据资料 dataSheet 下载

... TEC element manufacturers provide electrical specifications for maximum dc current and maximum output voltage for each particular element. The maximum ripple current, however, is typically only recommended to be less than 10% with no reference to the frequency components of the current. The maximum ...
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... An open in any circuit results in no current. In parallel circuits there is a difference between an open in the main line and an open in a branch: an open in the main line of a circuit of this type results in no current in the whole circuit while an open in a parallel branch results in no current in ...
Introduction to Photovoltaic Systems Maximum Power Point Tracking
Introduction to Photovoltaic Systems Maximum Power Point Tracking

... cells. Additional interesting methods are presented in References 2 and 3. These are by no means the only practical maximum power point tracking methods. Many systems will combine methods, such as using VOC to find the starting point for the iterative methods like P and O or IC. In some cases, chang ...
Differences Between Medium and Low Voltage Filter
Differences Between Medium and Low Voltage Filter

... bushings, they can be connected in any manner. The most common is the ungrounded-wye connection due to the simplicity in bus work. This permits the detection of blown fuses by a neutral voltage relay. C. Capacitor Voltage Rating Depending upon the manufacturer, low voltage filter manufacturers may u ...
High Efficiency Monolithic DC
High Efficiency Monolithic DC

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Aircraft Electrical Power Supplies
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... To achieve these power supplies they can be taken from the main AC busbars or by using transformers . This power supply can also be produced from DC by using Inverters. Inverters use more power than transformers, therefore the transformer supply is normally used as the primary source and the inverte ...
AD8655 数据手册DataSheet 下载
AD8655 数据手册DataSheet 下载

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MEEPE 201 Solid State DC and AC Drives
MEEPE 201 Solid State DC and AC Drives

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measuring rms values of voltage and current

APARTARRAYOS PDV_PVR
APARTARRAYOS PDV_PVR

... voltage. Smaller arresters than shown may be used, contact your Ohio Brass representative for details. For convenience, the data shown in this catalog includes the traditional duty-cycle voltage rating associated with the MCOV of each arrester. The selection of the actual type will be primarily gove ...
Evaluation Board User Guide UG-116
Evaluation Board User Guide UG-116

... ESD Caution ESD (electrostatic discharge) sensitive device. Charged devices and circuit boards can discharge without detection. Although this product features patented or proprietary protection circuitry, damage may occur on devices subjected to high energy ESD. Therefore, proper ESD precautions sho ...
LEP 4.1.01 Measurement of low resistance
LEP 4.1.01 Measurement of low resistance

ADM4073 数据手册DataSheet 下载
ADM4073 数据手册DataSheet 下载

... To measure lower currents accurately, use as large a sense resistor as possible to utilize the higher end of the sense voltage range. This reduces the effects of the offset voltage errors in the internal amplifier. When currents are very large, it is important to take the I2R power losses across the ...
AP5724 Description Pin Assignments
AP5724 Description Pin Assignments

... Schottky diodes, with their low forward voltage drop and fast reverse recovery, are the ideal choices for AP5724 applications. The forward voltage drop of a Schottky diode represents the conduction losses in the diode, while the diode capacitance (CT or CD) represents the switching losses. For diode ...
3-V to 17-V 1-A Step-Down Converter with DCS
3-V to 17-V 1-A Step-Down Converter with DCS

... Seamless transition into power save mode), an advanced regulation topology, that combines the advantages of hysteretic, voltage mode and current mode control including an AC loop directly associated to the output voltage. This control loop takes information about output voltage changes and feeds it ...
FMA2A
FMA2A

... Please be sure to implement in your equipment using the Products safety measures to guard against the possibility of physical injury, fire or any other damage caused in the event of the failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM shall bear no respo ...
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Digital to Analog Converters (DAC)
Digital to Analog Converters (DAC)

... large voltage divider for reference voltage values, and use enable/disable circuitry for the output voltage. ◊ Charge Scaling DACs utilize capacitors instead of resistors. Can be more accurate and potentially faster but are more difficult to implement. ...
DESDALC5LP Product Summary Features
DESDALC5LP Product Summary Features

... 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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Surge protector



A surge protector (or surge suppressor) is an appliance/device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or by shorting to ground any unwanted voltages above a safe threshold. This article primarily discusses specifications and components relevant to the type of protector that diverts (shorts) a voltage spike to ground; however, there is some coverage of other methods.The terms surge protection device (SPD), or transient voltage surge suppressor (TVSS), are used to describe electrical devices typically installed in power distribution panels, process control systems, communications systems, and other heavy-duty industrial systems, for the purpose of protecting against electrical surges and spikes, including those caused by lightning. Scaled-down versions of these devices are sometimes installed in residential service entrance electrical panels, to protect equipment in a household from similar hazards.Many power strips have basic surge protection built in; these are typically clearly labeled as such. However, power strips that do not provide surge protection are sometimes erroneously referred to as ""surge protectors"".
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