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MFJ-249C User Manual REV1B
MFJ-249C User Manual REV1B

... Most RF-interference problems occur at lower frequencies and are caused by high-power AM-broadcast stations. These signals couple efficiently into large antenna arrays and are especially problematic for 160-meter verticals. In the event you encounter intense local interference, we recommend using th ...
lab11 - University of Puget Sound
lab11 - University of Puget Sound

... force field and are repelled or attracted to other magnets. Thus it is plausible to explain magnetic materials as objects which sustain internal currents. Today you'll use a device called a solenoid (a coil of wire) that creates a moderately large magnetic field when you pass a current through it. I ...
P83966
P83966

... loudspeaker meets or exceeds the UL listed standards for audible signal appliances and is capable of operating within the ambient temperature range of 66º C (150º F) to -35ºC (-30ºF). This unit complies with UL Standard 1480 (Speakers for Fire Protective Signaling Systems). Additional information is ...
Battery Chargers • Inverters • DC Converters • Power
Battery Chargers • Inverters • DC Converters • Power

1N5817 - Vishay
1N5817 - Vishay

... Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements about the suitability of products for a particular a ...
ISSCC 2014 Digest of Technical Papers
ISSCC 2014 Digest of Technical Papers

... zeros, ωz1 to ωz3, reducing the negative phase shift caused by the four nondominant poles ωp2 to ωp5 (Fig. 17.2.3). Since ωp2-ωp5 and ωz1-ωz3 are all beyond the unity-gain frequency, ωu, the stability is unconditional during startup, large transients or saturation recovery. This fact differentiates ...
WIPO IPC: Internet Publication
WIPO IPC: Internet Publication

... In this section, the following special cases occur:  Among the general applications covered by sections other than section H, it is worth noting that electric heating in general is covered by subclasses F24D or F24H or class F27, and that electric lighting in general is partly covered by class F21, ...
Glassman High Voltage DC Power Supplies…
Glassman High Voltage DC Power Supplies…

... The proper selection of a high voltage power supply for a particular application is a more difficult task than the selection of a low voltage supply. For one thing, today’s high voltage regulated power supplies are often more complex than their low voltage counterparts. The selection of high voltage ...
AN2834 Application note How to get the best ADC accuracy in STM32F10xxx devices
AN2834 Application note How to get the best ADC accuracy in STM32F10xxx devices

... The analog power supply is used as the reference voltage for conversion. As the ADC output is the ratio between the analog signal voltage and the supply voltage, any noise on the analog reference will cause a change in the converted digital value. For example, with an analog reference of 3.3 V and a ...
CMOS Mixed Signal Design - Part I: OpAmp Design
CMOS Mixed Signal Design - Part I: OpAmp Design

Aalborg Universitet Margin against Cascading Events
Aalborg Universitet Margin against Cascading Events

... proposed in order to adjust the system emergent states and prevent unwanted relay operation and voltage instability during load restoration. The key issue of load shedding is to determine where to shed the load and how much should be shedding. A method based on sensitivity of relay operation margin ...
termination options for any-frequency, any-output
termination options for any-frequency, any-output

Termination Options for Any-Frequency, Any
Termination Options for Any-Frequency, Any

... and a maximum of 3.73 VPP regardless of the core VDD supply. For best performance, the slew rate at input Pins 3 and 4 must be greater than 1 V/ns. This makes the inputs 3.3 V-tolerant even when the core voltage is powered with 1.8 V. An Si5338/34/56/55 should have an input duty cycle no worse than ...
A Co-Synthesis Methodology for Power Delivery and Data Interconnection
A Co-Synthesis Methodology for Power Delivery and Data Interconnection

Modeling of Eddy-Current Loss of Electrical Machines and Transformers
Modeling of Eddy-Current Loss of Electrical Machines and Transformers

... PWM supply, the concept “loss ratio” is introduced. The loss ratio is defined as the eddy-current loss under PWM supply compared to the eddy-current loss with pure sinusoidal voltage supply. Fig. 4 shows that the loss ratio varies with switching frequency. The calculation results are the same when c ...
Power Master AC/DC DIGITAL BATTERY CHARGER DBC Series
Power Master AC/DC DIGITAL BATTERY CHARGER DBC Series

... output is designed for connecting to two battery banks and charging both batteries at the same time. Each output has one rectifier to prevent countercurrent from happening. Ideally, the two battery banks should have same battery capacity, else the unbalance in different capacities may cause over cha ...
Class 1000 Meter - E-Mon
Class 1000 Meter - E-Mon

... To ensure a safe installation, the Class 1000 meter requires an external switch mechanism, such as a circuit breaker, be installed on the Class 1000 MAINS input wiring. The switch mechanism must be installed in close proximity to the meter and easily reachable for the operator. This device must also ...
Current-Transformer Phase-Shift Compensation
Current-Transformer Phase-Shift Compensation

Design of a Restartable Crystal Controlled Clock for Use in... Asynchronous, Locally Synchronous Design Methodology
Design of a Restartable Crystal Controlled Clock for Use in... Asynchronous, Locally Synchronous Design Methodology

... due to inherent noise in the circuit, the flip-flop eventually exits the metastable state. This delay in exiting the metastable region is sometimes, however, sufficient for a system to crash. The possibility of flip-flops entering a metastable state is high in an asynchronous system whose inputs do ...
DAC8501 - Texas Instruments
DAC8501 - Texas Instruments

How AutoTune™ regulates current in stepper
How AutoTune™ regulates current in stepper

... help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms. No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) ...
Acom 1000 Operation Manual
Acom 1000 Operation Manual

... where it will be used. Pay particular attention when you move it from a very cold into a very warm place - condensation is likely and this could result in damage to the high voltage circuits. In such a case, wait at least 4 hours. A similar effect can occur after a rapid warming of the operating roo ...
THS6032
THS6032

... The THS6032 is a low-power line driver ideal for asymmetrical digital subscriber line (ADSL) applications. This device contains two high-current, high-speed current-feedback drivers, which can be configured differentially for driving ADSL signals at the central office. The THS6032 features a unique ...
Angliiskii
Angliiskii

Atmel LED Drivers MSL4163/MSL4164
Atmel LED Drivers MSL4163/MSL4164

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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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