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SF/SR Series Thumbwheel Switches
SF/SR Series Thumbwheel Switches

... The accuracy and the resolution is not solely dependent on the accuracy of the resistors used, but mainly in the number of decades used. For example: a 100 volt signal can be divided in 10 volt steps with a 10 volt resolution with only one decade; or 1 volt steps with a 1 volt resolution with 2 deca ...
Riello UPS Dialog Dual DLD Series 5000-6000 Manual
Riello UPS Dialog Dual DLD Series 5000-6000 Manual

... be carried out is the earth conductor, which has to be connected to the terminal marked . b) Avoid connecting the output neutral to the input neutral or to earth as this could cause malfunctions. c) DANGEROUS electrical voltages are generated inside the UPS. All installation and maintenance operatio ...
Telemetry 2014 - ACDC Dynamics
Telemetry 2014 - ACDC Dynamics

... Z-GPRS2 ZGPRS2 Is a GSM / GPRS multiprotocol wireless unit with built in I/O’s for high performance data acquisition, Datalogging, Commands, Measurement and Alarm management. Z-GPRS2 works as a stand alone or networked unit. Master Modbus unit on RS484 ports and GSM/ ...
MAX9310A 1:5 Clock Driver with Selectable LVPECL Inputs/Single-Ended Inputs and LVDS Outputs
MAX9310A 1:5 Clock Driver with Selectable LVPECL Inputs/Single-Ended Inputs and LVDS Outputs

... Note 1: Measurements are made with the device in thermal equilibrium. Note 2: Current into a pin is defined as positive. Current out of a pin is defined as negative. Note 3: DC parameters are production tested at +25°C. DC limits are guaranteed by design and characterized over the full operating tem ...
TPA6020A2 Audio Power Amplifier Evaluation
TPA6020A2 Audio Power Amplifier Evaluation

... Applying loads outside of the specified output range may result in unintended operation and/or possible permanent damage to the EVM. Please consult the EVM User's Guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field rep ...
P1237 REQUESTED INFORMATION TEST KB: FUEL PUMP DRIVER MODULE
P1237 REQUESTED INFORMATION TEST KB: FUEL PUMP DRIVER MODULE

Development of a tandem electrostatic accelerator quasi
Development of a tandem electrostatic accelerator quasi

Transparent Current Mirrors Using a-GIZO TFTs: Simulation
Transparent Current Mirrors Using a-GIZO TFTs: Simulation

... technology are fabrication at room-temperature [4], [5], better optical transparency and the relatively high mobility. These a-GIZO TFT applications are not only confined to displays (AMOLED) [6], but also extended to sensors [7]. The a-GIZO TFT technology is more recent among others. Hence the circ ...
1. General Description of Aluminum Electrolytic Capacitors
1. General Description of Aluminum Electrolytic Capacitors

Evaluation Board User Guide UG-073
Evaluation Board User Guide UG-073

... 50 Ω coaxial cable for making connections to the evaluation board. Enter the desired frequency and amplitude (refer to the specifications in the AD9114/AD9115/AD9116/AD9117 or AD9714/AD9715/AD9716/AD9717 data sheets). The evaluation board is set up to be clocked from an external source and the inter ...
Charge Controllers
Charge Controllers

SIM808 Hardware Design
SIM808 Hardware Design

... SIMCom offers this information as a service to its customers, to support application and engineering efforts that use the products designed by SIMCom. The information provided is based upon requirements specifically provided to SIMCom by the customers. SIMCom has not undertaken any independent searc ...
Power Supply Unit with Charge LED
Power Supply Unit with Charge LED

... accepts no responsibility for the way its products are incorporated into the final system design. Under no circumstances should any Yaskawa product be incorporated into any product or design as the exclusive or sole safety control. Without exception, all controls should be designed to detect faults ...
Data Synchronizer Performance in the Presence of Parameter Variability
Data Synchronizer Performance in the Presence of Parameter Variability

Troubleshooting a 4/20mA loop
Troubleshooting a 4/20mA loop

Purpose Protect the stave
Purpose Protect the stave

... Switching must not affect the rest of the SP chain? Transient effects on problem &/or power-up Bus-cable or hybrid Where should the switch be placed? (hybrid) Numerical failure analysis Quantitative estimate of failure rate? Switch failure modes, fail safe, mass, What extra complexity can we justify ...
paper
paper

... driver. This driver reduces the amount of crowbar current produced by introducing additional termination switches between the channel input ports [Fig. 3(a)]. In this configuration, impedance matching is done by the driver only in part and supplemented by the differential termination switches. It is ...
Eaton Software Development Kit
Eaton Software Development Kit

... The Network UPS Tools Opensource framework is a GNU General Public License (GPL) software that provides support for many different UPSs and PDUs. We expressly make the license terms of the GNU GPL applicable to this SDK solution, and by using the SDK you also accept to abide by these license terms; ...
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)
IOSR Journal of VLSI and Signal Processing (IOSR-JVSP)

Position Sensorless Control Based on Coordinate Transformation
Position Sensorless Control Based on Coordinate Transformation

... components, one is the back EMF caused by the PM excitation field, which can reflect the rotor position accurately, and the other is the reaction EMF due to the armature reaction field, which is usually only around 10%–20% of the magnitude of the open-circuit field [21] and may distort the motor air ...
Field Charger/Power Supply - Fire
Field Charger/Power Supply - Fire

... • Language and instructional requirements must be clearly disseminated on any local displays. • Strobes can, under certain circumstances, cause seizures in people with conditions such as epilepsy. • Studies have shown that certain people, even when they hear a fire alarm signal, do not respond to or ...
Alternator Protection for Emergency StandbyEngine Generators
Alternator Protection for Emergency StandbyEngine Generators

... Always carefully consider the balance of protection versus reliability, especially when the protection is for equipment that is operating for very few hours. With some mfrs. the alternator current sensing function monitors faults inside the machine. When the machine incorporates protection for the a ...
QUESTION BANK FOR SYB Sc. ELECTRONICS
QUESTION BANK FOR SYB Sc. ELECTRONICS

... 15. Why heat sink is necessary in case of power transistor? 16. Determine the power that 2N1707 can safely dissipate in free air when TA=500C. Given TJ=2000C and θJ-A=1000c/w. 17. Determine the power that 2N1707 can safely dissipate in free air when TA=600C. Given TJ=2100C and θJ-A=1100c/w. 18. Dete ...
PCA9559 - NXP Semiconductors
PCA9559 - NXP Semiconductors

... multiplexed output with one latched EEPROM bit. It is used for DIP switch-free or jumper-less system configuration and supports Mobile and Desktop VID Configuration, where 2 preset values (1 set of internal non-volatile registers and 1 set of external hardware pins) set processor voltage for operati ...
PDF: 2.09MB
PDF: 2.09MB

... the flow of leakage current and enabling operation at high temperatures. ...
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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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