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SILTRONIX - 1011B User manual
SILTRONIX - 1011B User manual

... operational area (fixed or mobile); connection of power (either 117 volts AC, or 12 volts DC); and the connection of an antenna. The following paragraphs are therefore devoted to the installation requirements involving micro. phones, fIXed and mobile operation, and recommended antenna types. Before ...
the tetrode boards - Bruce`s home page
the tetrode boards - Bruce`s home page

MAX2620 10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs _________________General Description
MAX2620 10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs _________________General Description

... The oscillator is a common-collector, negativeresistance type that uses the IC’s internal parasitic elements to create a negative resistance at the baseemitter port. The transistor oscillator has been optimized for low-noise operation. Base and emitter leads are provided as external connections for ...
AD7892: LC2MOS Single Supply, 12-Bit 600 kSPS ADC Data Sheet  (Rev C, 06/2000)
AD7892: LC2MOS Single Supply, 12-Bit 600 kSPS ADC Data Sheet  (Rev C, 06/2000)

... that operates from a single +5 V supply. The part contains a 1.47 µs successive approximation ADC, an on-chip track/hold amplifier, an internal +2.5 V reference and on-chip versatile interface structures that allow both serial and parallel connection to a microprocessor. The part accepts an analog i ...
ISL4489E, ISL4491E
ISL4489E, ISL4491E

... These devices utilize a differential input receiver for maximum noise immunity and common mode rejection. Input sensitivity is ±200mV, as required by the RS-422 and RS-485 specifications. Receiver input resistance of 120kΩ surpasses the RS-422 spec of 4kΩ, and is more than eight times the RS-485 “Un ...
Here you can find the manual for Neets Switching Relay
Here you can find the manual for Neets Switching Relay

... wider than the other. A grounding-type plug has two blades and a third grounding prong. The wide blade or the third prong is provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet. • Unplug this apparatus during lig ...
Lecture1.5
Lecture1.5

... Figure 3. PN junction operation in forward bias mode showing reducing depletion width. Both p and n junctions are doped at a 1e15/cm3 doping level, leading to built-in potential of ~0.59V. Reducing depletion width can be inferred from the shrinking charge profile, as fewer dopants are exposed with ...
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Electrical conductivity of graphite

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Tempus JPCR 530194-2012 Energy Efficiency, Renewable Energy Sources and Environmental

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The Dielectric Voltage Withstand Test

... The use of a trip current setting to determine dielectric breakdown is based on the assumption that current above the trip setting is indicative of dielectric breakdown. While this is true in many cases, there are instances in which a current above the trip-out threshold is not indicative of a break ...
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MAX15062 60V, 300mA, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converters General Description

... Benefits and Features ...
Steady-State Response of RC Circuit to Periodic Square Wave Input
Steady-State Response of RC Circuit to Periodic Square Wave Input

... You can consider the described system as a system with a periodic push with large gaps between the pushes. Every push inserts some energy into the system, when the push is over the energy in the system decays towards zero. If the resistor in the circuit is disconnected, R → ∞; then the system become ...
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Two-Electrode Spark Gap Preamble

MAX3243 数据资料 dataSheet 下载
MAX3243 数据资料 dataSheet 下载

... (HBM) protection pin to pin (serial-port connection pins, including GND). The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. This combination of drivers and receivers matches that ne ...
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air-cooled argon ion lasers with pictures and information

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Just What Is A Service Factor?

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... obtain the largest voltage from the smallest number of junctions, an array standard requires a circuit design that can deliver nearly uniform microwave power to many thousands of junctions, all of which are connected in series. The solution to this problem is a simple extension of Fig. 3 to a series ...
Mojotone 1484 Amp Kit Manual
Mojotone 1484 Amp Kit Manual

... This step can help prevent cold solder joints by eliminating the need to push wires through an already established solder connection. If you plan on doing modifications such as “hot-rodding” (adding a bright switch etc.) and have never put a kit together before, it is suggested that you assemble the ...
CHAPTER 25 - Aerostudents
CHAPTER 25 - Aerostudents

Installation and Maintenance Sheet - IF 1405 Revision 1
Installation and Maintenance Sheet - IF 1405 Revision 1

... following the wiring pattern established for your system. Connect grounding conductors. The ground conductor must be fastened to the ground terminal on the neutral block. See Figure 2. 3. Check plug/receptacle polarization. The ARKTITE ® receptacles on the WSRD CH S901 enclosures are polarized so th ...
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1200-Series Datasheet

Inductor and Magnetic Product Terminology Definitions
Inductor and Magnetic Product Terminology Definitions

... bias current is increased further. This applies mostly to ferrite cores in lieu of powdered iron. Powdered iron cores exhibit “soft” saturation characteristics. This means their inductance drop from higher DC levels is much more gradual than ferrite cores. The rate at which the inductance will drop ...


... PEMFCs are the most popular type of Fuel Cells (F Cs) and traditionally use hydrogen as the fuel. One FC problem is its relative slow dynamics caused by the time constant of the hydrogen and oxygen supply systems that can be in the range of several seconds. In this sense, supercapacitors (SCs) respo ...
LOC04 Basic Electrical Measurement and Error Analysis
LOC04 Basic Electrical Measurement and Error Analysis

... 3. Switch the DMM to the highest ohm range (2000M)—denoted by the Ω symbol. Using the same steps used in voltage find the proper range to take a reading of the resistor provided with the lab. Record the nominal value of the resistor: _______________ Equation and Measurement 3 4. Calculate the relati ...
ISL69147 Data Short
ISL69147 Data Short

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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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