Zener Diode
... Reverse Breakdown Voltage (VBR, VZ): OV Protection and Zener diodes are designed to take advantage of this characteristic. This value determines the limiting (or clamping) voltage presented to an application that is subject to an over-voltage event (ESD, Lightning Surge, AC Power-Cross) or, the regu ...
... Reverse Breakdown Voltage (VBR, VZ): OV Protection and Zener diodes are designed to take advantage of this characteristic. This value determines the limiting (or clamping) voltage presented to an application that is subject to an over-voltage event (ESD, Lightning Surge, AC Power-Cross) or, the regu ...
... (50 or 60 Hz) utility source is used. The Cockcroft-Walton (CW) voltage multiplier is a ac to dc converter which is specially designed by cascading number of diode capacitor stages with each stage containing two capacitors and two diodes. In an n-stage CW voltage multiplier provides dc voltage with ...
Guidelines for Providing Surge Protection Introduction
... lightning, but surges can also come from normal utility switching operations, unintentional grounding of electrical conductors (such as when an overhead power line falls to the ground). These surges can also enter the premises via internet cable and telecommunications lines. However, numerous studie ...
... lightning, but surges can also come from normal utility switching operations, unintentional grounding of electrical conductors (such as when an overhead power line falls to the ground). These surges can also enter the premises via internet cable and telecommunications lines. However, numerous studie ...
MQHR-28-28S
... frequency for predictable EMI performance. The isolation stage switches at one half the frequency of the regulation stage, but due to the push-pull nature of this stage it creates a ripple at double its switching frequency. As a result, both the input and the output of the converter have a fundament ...
... frequency for predictable EMI performance. The isolation stage switches at one half the frequency of the regulation stage, but due to the push-pull nature of this stage it creates a ripple at double its switching frequency. As a result, both the input and the output of the converter have a fundament ...
AN51 - Power Conditioning for Notebook and Palmtop Systems
... Burst ModeTM operation can be initiated by floating the mode pin. Input supply current is typically 1.3mA in this mode, and output ripple voltage is 100mVP-P. Pulling the mode pin above 2.5V forces the entire regulator into micropower shutdown where it typically draws less than 20µA. What are the be ...
... Burst ModeTM operation can be initiated by floating the mode pin. Input supply current is typically 1.3mA in this mode, and output ripple voltage is 100mVP-P. Pulling the mode pin above 2.5V forces the entire regulator into micropower shutdown where it typically draws less than 20µA. What are the be ...
lecture notes from ECS303
... represented by V , whereas a sinusoidally time-varying voltage is called an AC voltage and is represented by v. A dc voltage is commonly produced by a battery; ac voltage is produced by an electric generator. Current and voltage are the two basic variables in electric circuits. The common term signa ...
... represented by V , whereas a sinusoidally time-varying voltage is called an AC voltage and is represented by v. A dc voltage is commonly produced by a battery; ac voltage is produced by an electric generator. Current and voltage are the two basic variables in electric circuits. The common term signa ...
UN2E8-2000LL
... The capacitance of gas tube shall be measured each terminal to each other terminal. Test frequency :1MHz The maximum current applying a waveform of 8/20μs that can be applied across the terminals of the gas tube. One hour after the test is completed, re-testing of the DC spark-over voltage does not ...
... The capacitance of gas tube shall be measured each terminal to each other terminal. Test frequency :1MHz The maximum current applying a waveform of 8/20μs that can be applied across the terminals of the gas tube. One hour after the test is completed, re-testing of the DC spark-over voltage does not ...
SgLabs_HP 54701A
... active probing. If four channels of probing are needed, a special oneinput, two-output adapter is available (p/n 01144-61604). Two adapters are needed for four channels of probing. If the HP 1144A is used with any scope not listed above, then the HP 1142A power supply is required. The HP 01144-61604 ...
... active probing. If four channels of probing are needed, a special oneinput, two-output adapter is available (p/n 01144-61604). Two adapters are needed for four channels of probing. If the HP 1144A is used with any scope not listed above, then the HP 1142A power supply is required. The HP 01144-61604 ...
AP6714 1.8MHz SYNCHRONOUS BOOST CONVERTER Description
... capacitor is the maximum allowed output voltage ripple of the converter. This ripple os determined by two parameters of the capacitor, the capacitance and the ESR (Equivalent Series Resistance). It is possible to calculate the minimum capacitance needed for the defined ripple, supposing that ESR is ...
... capacitor is the maximum allowed output voltage ripple of the converter. This ripple os determined by two parameters of the capacitor, the capacitance and the ESR (Equivalent Series Resistance). It is possible to calculate the minimum capacitance needed for the defined ripple, supposing that ESR is ...
Power Quality Analysis in Microgrid
... each phase as 7 kW/7 kW/11 kW respectively. Also in addition, two numbers of solar PV (Mono crystalline Silicon cell) with each power rating of around 12.5 kW, integrated with 15 kVA three phase inverter (SMA Sunny (15,000 TL) Tripower Economic Excellence) was considered. Overall installed capacity ...
... each phase as 7 kW/7 kW/11 kW respectively. Also in addition, two numbers of solar PV (Mono crystalline Silicon cell) with each power rating of around 12.5 kW, integrated with 15 kVA three phase inverter (SMA Sunny (15,000 TL) Tripower Economic Excellence) was considered. Overall installed capacity ...
Levers
... calculated by the velocity ratio: Velocity ratio = distance moved by effort ÷ distance moved by load A class 3 lever does not have the mechanical advantage of class-one levers and class-two levers, so examples are less common. The effort and the load are both on the same side of the fulcrum, but th ...
... calculated by the velocity ratio: Velocity ratio = distance moved by effort ÷ distance moved by load A class 3 lever does not have the mechanical advantage of class-one levers and class-two levers, so examples are less common. The effort and the load are both on the same side of the fulcrum, but th ...
Ekho: Bridging the Gap Between Simulation and Reality in Tiny
... Figure 1: The general structure for an energyharvesting device. Environmental energy is converted into either AC or DC power, which may be amplified and/or rectified before being stored in a battery or capacitor for use by the devices components. Energy harvesting makes it possible to deploy sensors ...
... Figure 1: The general structure for an energyharvesting device. Environmental energy is converted into either AC or DC power, which may be amplified and/or rectified before being stored in a battery or capacitor for use by the devices components. Energy harvesting makes it possible to deploy sensors ...
ee2353 high voltage engineering
... • A switching surge is a short duration transient voltage produced in the system due to a sudden opening or closing of a switch or c.b or due to an arcing at a fault in the system. • Impulse generator circuit is modified to give longer duration wave shape,100/1000 μs,R1 is increased to very high val ...
... • A switching surge is a short duration transient voltage produced in the system due to a sudden opening or closing of a switch or c.b or due to an arcing at a fault in the system. • Impulse generator circuit is modified to give longer duration wave shape,100/1000 μs,R1 is increased to very high val ...
MOS Current Mode Logic for Low Power, Low Noise CORDIC
... the gate which the VSC is trying to model, but VSCs can be shared across different gates. The main difficulty in using a single VSC to set the RFP voltage for different types of gates is that the voltage swing of the gates will not track Vlow exactly. The number of VSCs used in a circuit can range f ...
... the gate which the VSC is trying to model, but VSCs can be shared across different gates. The main difficulty in using a single VSC to set the RFP voltage for different types of gates is that the voltage swing of the gates will not track Vlow exactly. The number of VSCs used in a circuit can range f ...
Converter Modules
... containing components manufactured by RLC and based upon personal injuries, deaths, property damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be to any extent liable, including without limitation penalties imposed by the Consumer Product Safety Act (P ...
... containing components manufactured by RLC and based upon personal injuries, deaths, property damage, lost profits, and other matters which Buyer, its employees, or sub-contractors are or may be to any extent liable, including without limitation penalties imposed by the Consumer Product Safety Act (P ...
G. Hassan, D.J. Perreault, and T.A. Keim, “Design of Dual-Output Alternators with Switched-Mode Rectification,” 2003 IEEE Power Electronics Specialists Conference , Acapulco, Mexico, June 2003, pp. 1992-2000.
... In the implementation of Fig. 4, a conventional diode bridge rectifier is used to supply the 42V bus. The 14V bus is supplied through a semi-controlled rectifier made of three additional thyristors in conjunction with the bottom diodes of the diode bridge. The two outputs can be regulated by a combi ...
... In the implementation of Fig. 4, a conventional diode bridge rectifier is used to supply the 42V bus. The 14V bus is supplied through a semi-controlled rectifier made of three additional thyristors in conjunction with the bottom diodes of the diode bridge. The two outputs can be regulated by a combi ...
REF2912 数据资料 dataSheet 下载
... Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these, or any other conditions beyond those specified, is not implied. (2) Short-circuit to ground. ...
... Exposure to absolute maximum conditions for extended periods may degrade device reliability. These are stress ratings only, and functional operation of the device at these, or any other conditions beyond those specified, is not implied. (2) Short-circuit to ground. ...
4 MB - Yaskawa
... Do not attempt to modify or alter the drive in any way not explained in this manual. Failure to comply could result in death or serious injury. Yaskawa is not responsible for any modification of the product made by the user. This product must not be modified. Do not allow unqualified personnel to us ...
... Do not attempt to modify or alter the drive in any way not explained in this manual. Failure to comply could result in death or serious injury. Yaskawa is not responsible for any modification of the product made by the user. This product must not be modified. Do not allow unqualified personnel to us ...
Aalborg Universitet droop-controlled islanded microgrids
... by line impedance mismatches, as the frequency at steady state is constant throughout the whole microgrid. The additional reactive current supplied by each inverter reduces the maximum real power that can be supplied by the inverters. Equal sharing of linear and non-linear loads has been investigate ...
... by line impedance mismatches, as the frequency at steady state is constant throughout the whole microgrid. The additional reactive current supplied by each inverter reduces the maximum real power that can be supplied by the inverters. Equal sharing of linear and non-linear loads has been investigate ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.