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General
General

Commun-ications Test Facility
Commun-ications Test Facility

... & Spectral) & Reflectivity ...
References
References

Valve Troubleshooting Guide Product Description
Valve Troubleshooting Guide Product Description

...  If this is a repair job or new installation where the gear case position has been moved from the as received (Standard position 4) position, see Figure 1 to make sure the gear case parts have been reassembled correctly.  All testing to be done with power on for both the monitor and valve control ...
1 Confirmed Action Notes of the DG Technical Forum meeting
1 Confirmed Action Notes of the DG Technical Forum meeting

DD Frame - Series Circuit Breakers
DD Frame - Series Circuit Breakers

Introduction to ORCAD/PSPICE Capture (versions 9.1
Introduction to ORCAD/PSPICE Capture (versions 9.1

... source. You can place wires between components in the schematic by going to the ‘Place’ menu and selecting ‘Wire’ or you can click on the ‘Place Wire’ symbol which is found on the right hand side of the screen and is the third symbol from the top. Once this option is selected click on the top node o ...
LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and
LM76 ±0.5˚C, ±1˚C, 12-Bit + Sign Digital Temperature Sensor and

... Note 9: Limits are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 10: 12 bits + sign, two’s complement Note 11: This specification is provided only to indicate how often temperature data is updated. The LM76 can be read at any time without regard to conversion state (and will y ...
Introduction to Capacitor Technologies
Introduction to Capacitor Technologies

... Optimizing the physical design of the capacitor, for example by maximizing the usable electrode surface area and minimizing package overheads, also helps increase the CV of the end product. Capacitor Properties An ideal capacitor has exactly the desired capacitance value and it is a perfect insulato ...
MAX134 Evaluation Kit Evaluates: General Description Features
MAX134 Evaluation Kit Evaluates: General Description Features

... ADC reading and the last zero reading appear just below. The displayed reading and raw ADC value are updated at the end of each conversion. Values from REG0–REG4 are displayed as the raw reading. The Displayed Reading is the Raw reading minus the Zero reading. The demonstration program updates the z ...
Manual - Effective Solar
Manual - Effective Solar

generator selection contents
generator selection contents

... losses. There are a number of machine losses which can be either calculated or measured. windage and friction loss iron loss copper loss stray loss excitation loss From this it follows that the input power required from the prime mover is higher than the electrical output power of the a.c. generator ...
Cascadable Three-Input Single-Output Current-Mode Universal Filter Using CDBAs
Cascadable Three-Input Single-Output Current-Mode Universal Filter Using CDBAs

... where !p = 1 - "p and "p (|"p| << 1) denotes the currenttracking error from p terminal to z terminal, !n = 1 - "n and "n (|"n| << 1) represents the current-tracking error from n terminal to z terminal, and # = 1 - "v and "v (|"v| << 1) is the voltage-tracking error from z terminal to w terminal of t ...
HMC174MS8 / 174MS8E
HMC174MS8 / 174MS8E

... SPDT switches in 8-lead MSOP packages for use in ...
MMST6427 Features Mechanical Data
MMST6427 Features Mechanical Data

... Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings noted herein may also be covered by one or more United States, international or foreign trademarks. LIFE SUPPORT Diodes Incorporated products are specifically n ...
SP319
SP319

... which accept either TTL or CMOS inputs and output the RS-232 signals with an inverted sense relative to the input logic levels. Typically, the RS-232 output voltage swing is +9V with no load, and +5V minimum with full load. The transmitter outputs are protected against infinite short-circuits to gro ...
LCA-XXX-CCD-REB
LCA-XXX-CCD-REB

... DC outputs to 0. Then we have to rely on the protection diodes to keep the drains above FS in the time between Vsub being turned on and the CABAC DC outputs being programmed. We need to know that this does not damage the CABAC. The CCD power-up sequences are almost the same as in unipolar operations ...
AD4101172176
AD4101172176

... source. The power consumed by the clock is given by Pclk,f = Cclk,f . V2dd . fclk ...
7 Modeling Ferrite Core Losses
7 Modeling Ferrite Core Losses

Electrical Standard Engineering Inclusions
Electrical Standard Engineering Inclusions

... establishment to confirm there is adequate capacity and this must include assessing the impact to the current energy contracts and network agreements. The Director Energy Services and the Regional Manager can provide advice on existing retail contracts or network agreements respectively. Where the r ...
Linear Current Starved Delay Element
Linear Current Starved Delay Element

MASW-004100-1193  HMIC™ SP4T Silicon PIN Diode Switch Features
MASW-004100-1193 HMIC™ SP4T Silicon PIN Diode Switch Features

... The simultaneous application of negative DC current to the low loss port and positive DC current to the remaining isolated ports as shown in Figure 1 will operate the MASW-004100-1193 PIN diode switch. The backside metalized area of the die is the RF and DC return ground plane. The DC return is achi ...
System Impact Assessment Application
System Impact Assessment Application

... Describe any control schemes that are to be used to automatically change the tap positions for any of the transformers, or to switch into-service or out-of-service any capacitors or reactors. ...
MAX5812 12-Bit Low-Power, 2-Wire, Serial Voltage-Output DAC General Description
MAX5812 12-Bit Low-Power, 2-Wire, Serial Voltage-Output DAC General Description

... (Figure 3). This condition is not a legal I2C format, at least one clock pulse must separate any START and STOP conditions. Repeated START Conditions A repeated start (Sr) condition might indicate a change of data direction on the bus. Such a change occurs when a command word is required to initiate ...
Three-Phase Induction Motor Stator Current Optimization
Three-Phase Induction Motor Stator Current Optimization

... induction motors such as, efficiency, power loss and power factor. All these factors must be considered at loads which are less than nominal loads, due to their influence on the whole performance of an induction motor. In other words, these parameters have to be optimized simultaneity by reducing th ...
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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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