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SA-600R Series Pure Sine Wave Inverter User`s Manual
SA-600R Series Pure Sine Wave Inverter User`s Manual

an enhanced voltage sag compensation scheme for dynamic
an enhanced voltage sag compensation scheme for dynamic

MAX8500–MAX8504 PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets General Description
MAX8500–MAX8504 PWM Buck Converters with Bypass FET for N-CDMA/W-CDMA Handsets General Description

TGA9092-SCC 数据资料DataSheet下载
TGA9092-SCC 数据资料DataSheet下载

... Operating Channel Temperature ...
Current Meter Guard/Ground Connections
Current Meter Guard/Ground Connections

... The Guard Return mode is used to measure the leakage current through the test object only and not any other stray leakage currents. This permits the accurate reading of leakage currents through only the insulation area desired. When using the Guard Return mode, so long as the low end of the load, th ...
A Circuit for the Square Root of the Sum of Two Squared Voltages
A Circuit for the Square Root of the Sum of Two Squared Voltages

doc - Seattle Central College
doc - Seattle Central College

... can work with. (Hint: the limiting factor will probably be the ½ Watt power dissipation rating of the Zener diode)  Based on your resistor choices, figure out the minimum voltage required for your circuit to work with. (i.e., how low can the voltage go without causing the output voltage to sag?)  ...
Chap 4 Methods of Analysis
Chap 4 Methods of Analysis

Analog Devices Welcomes Hittite Microwave Corporation
Analog Devices Welcomes Hittite Microwave Corporation

... the data into other devices. The demux is DC coupled supporting broadband operation. All clock and data inputs to the HMC855LC5 are CML and terminated on-chip with 50 Ohms to the positive supply, GND, and may be DC or AC coupled. The differential outputs are source terminated to 50 Ohms and may also ...
Evaluating the Efficacy of Low Power Process to Design - Inf
Evaluating the Efficacy of Low Power Process to Design - Inf

... In micrometer designs, the static current is usually ignored due to its insignificant value when compared to dynamic power. The device dimension scaling increases the electric field between transistor structures increasing the magnitude of this static current [6]. In modern designs, if none leakage ...
MAX8860 低噪声、低压差300mA (确保)稳压器,µMAX封装
MAX8860 低噪声、低压差300mA (确保)稳压器,µMAX封装

... Thermal overload protection limits total power dissipation in the MAX8860. When the junction temperature (TJ) exceeds +170°C, the thermal sensor sends a signal to the shutdown logic, turning off the pass transistor and allowing the IC to cool. The pass transistor turns on again after the IC’s juncti ...
Transformers Electrical transformers are used to transform voltage or
Transformers Electrical transformers are used to transform voltage or

... Commonly Step-down transformers are used for toys and other house hold items because they convert 120 volts to 6 to 9 volts. The 120 volt source can give you a respectable shock whereas a 6 to 9 volt source will not. Often the AC voltage is converted to DC using a diode and a capacitor. The diode al ...
Operating Modes Overview:
Operating Modes Overview:

Technical Reference
Technical Reference

... Two-, three-, or four-wire proximity sensors contain a transistor oscillator and a snap-action amplifier. This provides exceedingly high accuracy to a set switching point, even with very slowly approaching targets. Switching characteristics are unaffected by supply voltage fluctuations within the sp ...
XMT® 304CC/CV
XMT® 304CC/CV

... Stick electrode performance. ...
RFHA1000 50MHz TO 1000MHz, 15W GaN WIDEBAND POWER AMPLIFIER Features
RFHA1000 50MHz TO 1000MHz, 15W GaN WIDEBAND POWER AMPLIFIER Features

... infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended application circuitry and specifications at any time with ...
Abstracts - Acta Technica
Abstracts - Acta Technica

... Abstract. The operating conditions of the system consisting of induction generator, capacitor bank and rectifier load is investigated. The harmonic analysis is performed for currents and voltages of a self-contained induction generator with capacitor excitation when direct current consumers are conn ...
STK534U3xx series  Application Note 1.  Product synopsis
STK534U3xx series Application Note 1. Product synopsis

... STK534U3xx series Application Note 5.3. Heat sink mounting and torque If a heat sink is used, insufficiently secure or inappropriate mounting can lead to a failure of the heat sink to dissipate heat adequately. This can lead to an inability of the device to provide its inherent performance, a serio ...
step-up transformer N2>N1
step-up transformer N2>N1

... Commonly Step-down transformers are used for toys and other house hold items because they convert 120 volts to 6 to 9 volts. The 120 volt source can give you a respectable shock whereas a 6 to 9 volt source will not. Often the AC voltage is converted to DC using a diode and a capacitor. The diode al ...
Transformers Electrical transformers are used to transform voltage or
Transformers Electrical transformers are used to transform voltage or

... Commonly Step-down transformers are used for toys and other house hold items because they convert 120 volts to 6 to 9 volts. The 120 volt source can give you a respectable shock whereas a 6 to 9 volt source will not. Often the AC voltage is converted to DC using a diode and a capacitor. The diode al ...
4. Replace the BJT with one of its small
4. Replace the BJT with one of its small

... Here the operating conditions of the transistor are zero input base current ( IB ), zero output collector current ( IC ) and maximum collector voltage ( VCE ) which results in a large depletion layer and no current flowing through the device. Therefore the transistor is ...
Q4807113117
Q4807113117

... DSTATCOMs are the distribution network STATCOMs. There are some variations of the STATCOM, but their composition is basically the same. One STATCOM is composed of one inverter with energy storing capacitors on its dc side, inductance and a control system, and it is connected in parallel with the pow ...
Control principles of micro-source inverters used in microgrid
Control principles of micro-source inverters used in microgrid

TECHNICAL SPECIFICATION
TECHNICAL SPECIFICATION

Unique Single-Chip Ballast Control IC with Integrated PFC Control
Unique Single-Chip Ballast Control IC with Integrated PFC Control

< 1 ... 828 829 830 831 832 833 834 835 836 ... 1315 >

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.
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