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Voltage-Controlled Oscillators and Frequency Dividers
Voltage-Controlled Oscillators and Frequency Dividers

Technical Information
Technical Information

... 432 volts (a 48 volt -10% difference). Connecting a transformer without taps would result in an output of about 10% reduced voltage, or 108 volts. While this may be acceptable for some installations, other equipment may not tolerate the low voltage. However, the same load connected to a transformer ...
Theory of Operation and VDD Fault Scenario
Theory of Operation and VDD Fault Scenario

... the other hand, tend to be very sensitive to common mode differences because the voltage reference is relative to a local ground connection at the driver and receiver. Data communications can occur across cables up to ten meters in length. Common mode problems become more pronounced as the end point ...
Title A 60 GHz 25% tuning range frequency generator with implicit
Title A 60 GHz 25% tuning range frequency generator with implicit

... bands (e.g., 57–66 GHz) with margin for process, voltage and temperature (PVT) variations. Meanwhile, long battery lifetime calls for high power efficiency thus, ultimately, high figure-of-merit (FoM). Unfortunately, CMOS implementations of such 60 GHz LOs suffer from poor PN, limited TR and high po ...
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Driving LEDs with Xilinx CPLDs Summary

... These numbers are taken under worst case conditions and, therefore, we can guarantee that the devices will be able to meet this specification. However, it should also be noted that the output buffers can probably drive significantly more current than worst case conditions. To find out how much curre ...
DAC7554 - VersaLogic
DAC7554 - VersaLogic

How to debug a PLL frequency synthesizer
How to debug a PLL frequency synthesizer

... In the case of an active loop filter, the opamp’s input stages may saturate on each correction pulse from the phase-frequency detector. Recovery from this saturation condition is not well defined or controlled, so the loop dynamics will not be as designed. The solution is to “split” the op-amp input ...
A Steep-Slope Tunnel FET Based SAR Analog-to-Digital Converter Student Member, IEEE Fellow, IEEE
A Steep-Slope Tunnel FET Based SAR Analog-to-Digital Converter Student Member, IEEE Fellow, IEEE

... in digital blocks and to compensate the voltage headroom reduction due to a low VDD [4], [5], the new size strategy for Si FinFET has been adopted to use a smaller fan-out factor between logic gates, as shown in Fig. 7. To drive the same analog load (switches), the Si FinFET logic gates have an aver ...
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Simulation and Design of a high speed Solid State Switch

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... operating settings for the control. It is also used to display metering, counter information, control parameters, reset alarms, and provide diagnostic information. Control parameters can also be programmed via a personal computer connected to the control through the front panel RS-232 port. Control ...
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P84399

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TDA8024

... In order to reach a 45 to 55% duty factor on pin CLK, the input signal on pin XTAL1 should have a duty factor of 48 to 52% and transition times of less than 5% of the input signal period. If a crystal is used, the duty factor on pin CLK may be 45 to 55% depending on the circuit layout and on the cry ...
Model 701924 PBDH1000 Differential Probe User’s Manual
Model 701924 PBDH1000 Differential Probe User’s Manual

... • 5-cm pair lead Can connect directly to a pin header or the item you want to measure. It includes a damping resistor that takes pin header connection into account. • 10-cm pair lead Used in combination with a micro clip. It includes a damping resistor that takes the micro clip into account. I ...
Electronics Tutorial about the Types of Resistors The Different Types
Electronics Tutorial about the Types of Resistors The Different Types

... resistor types generally coated with a vitreous or glass epoxy enamel for use in resistance banks or DC motor/servo control and dynamic braking applications. They can even be used as space or cabinet heaters. The non-inductive resistance wire is wound around a ceramic or porcelain tube covered with ...
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... (Li+) battery. It delivers up to 1.55A of current to the battery from inputs up to 7.5V and withstands transient inputs up to 22V. The 4MHz switch-mode charger is ideally suited for small portable devices, such as headsets and ultra-portable media players. It minimizes component size and heat. Batte ...
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TDC3000X Galvanic Isolation/Intrinsic Safety Field Termination

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... The LTM®4611 is a high density 15A output, switch mode DC/DC buck converter power supply capable of operating from very low voltage input supplies. Included in the package are the buck switching controller, power FETs, inductor and loop-compensation components. The LTM4611 delivers up to 15A continu ...
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VULCAN-DayBright-LED-System-Manual

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... Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's ...
Mitsubishi S500 series manual
Mitsubishi S500 series manual

... The electronic overcurrent protection does not guarantee protection of the motor from overheating. Do not use a magnetic contactor on the inverter input for frequent starting/stopping of the inverter. Use a noise filter to reduce the effect of electromagnetic interference. Otherwise nearby electroni ...
Laser PCB Milling Machine - Department of Electrical Engineering
Laser PCB Milling Machine - Department of Electrical Engineering

... lead screws are not meant to be oiled. If the plastic shavings that were everywhere was not an indication that something was wrong, the horrible screeching noise would have. This case of ignorance on the part of a senior design student caused several months of down time as we needed to first search ...
A New Look At An Old Friend
A New Look At An Old Friend

... with the last two is that the bias does become fixed alright – but fixed to the point that it will not change regardless of what other conditions may change in the amplifier. Unless all the other voltage sources are regulated in the amplifier as well, this is not necessarily a good thing. Classic po ...
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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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