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SP3238E
SP3238E

... The SP3238E device is an RS-232 transceiver solution intended for portable or hand-held applications such as notebook and palmtop computers. The SP3238E uses an internal high-efficiency, charge-pump power supply that requires only 0.1µF capacitors in 3.3V operation. This charge pump and Exar's drive ...
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TJF1052i
TJF1052i

... The TJF1052i is a high-speed CAN transceiver that provides a galvanically isolated interface between a Controller Area Network (CAN) protocol controller and the physical two-wire CAN bus. The TJF1052i is specifically targeted at industrial applications, where galvanic isolation barriers are needed b ...
VENF-1372i 25amp Brushless ESC_P1
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IEEE Std 112-2004, IEEE Standard Test Procedure for Polyphase
IEEE Std 112-2004, IEEE Standard Test Procedure for Polyphase

... those cases where the matter has previously received formal consideration. At lectures, symposia, seminars, or educational courses, an individual presenting information on IEEE standards shall make it clear that his or her views should be considered the personal views of that individual rather than ...
QS6J11
QS6J11

... shall bear no responsibility whatsoever for your use of any Product outside of the prescribed scope or not in accordance with the instruction manual. The Products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability th ...
ATS - MS Word Document
ATS - MS Word Document

... E. Inspection of all contacts shall be possible from the front of the switch without disassembly of operating linkages and without disconnection of power conductors. Switches rated 800 amps and higher shall have front removable and replaceable contacts. All stationary and moveable contacts shall be ...
Senior Design I Final Document - UCF EECS
Senior Design I Final Document - UCF EECS

... The Green Box is a system intended to make green energy more practical for use in the average home. The purpose of this system is to allow for the easy connection of up to 3 types of energy producing devices that include wind, solar, and human power in any configuration. The system will also store a ...
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Assessing an EM environment
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... H.F. RADIATION can cause interference. D High-frequency (H.F.) can interfere with radio navigation, safety services, computers, and communications equipment. D Have only qualified persons familiar with electronic equipment install, test, and service H.F. producing units. D The user is responsible fo ...
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... With the increasing demand for higher power density, especially soft switching topologies like half-bridge (e.g. HID half-bridge or LLC) and full-bridge concepts (e.g. ZVS bridge) seem to be the ideal solution. These topologies reduce the switching losses and increase the reliability of the system d ...
MC14043B - CMOS MSI
MC14043B - CMOS MSI

... or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental ...
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... EMC INTRODUCTION Hypertherm's CE-marked equipment is built in compliance with standard EN50199. The equipment should be installed and used in accordance with the information below to achieve electromagnetic compatibility. The limits required by EN50199 may not be adequate to completely eliminate int ...
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... Although the adaptive algorithm calls for only moderate charging power levels, the magnitude of the inrush current should still be as high as possible. In fact, our tests have shown that for the IUI profile to be effective the inrush current must not be less than 0.40C10. The charge algorithm profil ...
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... The R-2R Ladder Network Intersil processes are not very good at making accurate resistors; the absolute tolerances may range from 0.5 to 30 percent depending on the how the resistor is made, it’s value, where it is located on the die, and if it is trimmed. Intersil processes are extremely good at ma ...
50 MHz to 2200 MHz Quadrature Modulator ADL5385
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... designed for use from 50 MHz to 2200 MHz. Its excellent phase accuracy and amplitude balance enable both high performance intermediate frequency (IF) and direct radio frequency (RF) modulation for communication systems. The AD5385 takes the signals from two differential baseband inputs and modulates ...
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... When transformer feeder protection is being considered it is advisable to use relays having an instantaneous high-set unit. This is set above the secondary short-circuit level and transformer in-rush current, which then allows the operating time of upstream relays to be reduced thereby reducing the ...
Liebert Series 610 UPS Installation Manual - 1000kVA, 60Hz, Three Phase Single-Module
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... is used to bring in MAINS Power (voltage lines to power meter) and current sensor wiring. The 1/2” conduit opening located on the top of the enclosure is used to interface low voltage signals, such as the IDR interface and isolated pulse output. (Outdoor enclosures equipped with one 3/4” conduit ope ...
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... The MC-4210-H2S Modbus Sensor may be installed in a variety of configurations to solve almost any gas sensor requirements. The monitor may be used in a Stand Alone 4 to 20 milliampere current loop output mode or a Stand Alone 0 to 3 VDC voltage output mode. When used in the voltage output mode, the ...
MAX98358 PDM Input Class D Audio Power Amplifier General Description Features
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... or (left/2 + right/2) output from the stereo input data. The MAX98358 takes a stereo pulse density modulated (SPDM) input signal directly into the DAC. Data on the rising edge of PDM_CLK is considered left-channel data while data on the falling PDM_CLK edge is right channel. A mono sum feature is al ...
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DMN65D8L Product Summary Features
DMN65D8L 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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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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