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Reference-Shift Modulator
Reference-Shift Modulator

... V2. The total resistance of R3 and R4 should be 5 to 10 times the load presented by the grid of V2. Rectifier CR1 must have a maximum rated back voltage equal to or higher than the maximum reference voltage. A 1N38 will tolerate a back voltage of about 100 volts; for a higher voltage, a thermionic r ...
BDTIC www.BDTIC.com/infineon  TLV4946-2L
BDTIC www.BDTIC.com/infineon TLV4946-2L

... General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 ...
BD9A300MUV
BD9A300MUV

... 1ch Synchronous Buck DC/DC Converter BD9A300MUV  Description BD9A300MUV is a synchronous buck switching regulator with built-in low On-resistance power MOSFETs. It is capable of providing current up to 3A. The SLLMTM control provides excellent efficiency characteristics in light-load conditions whi ...
Cables, conduits and trunking
Cables, conduits and trunking

ROC800-Series ROC800-Series Alternating CurrentI/O Module
ROC800-Series ROC800-Series Alternating CurrentI/O Module

Very good – all requirements aptly met. Minor additions/corrections
Very good – all requirements aptly met. Minor additions/corrections

... a different side of the board with as much space as possible between. However, this will create problems with the traces between pins when connections are made between an analog and a digital chip. Strategic placement and prior planning can help reduce this problem by deciding where each analog or d ...
Ohm`s Law
Ohm`s Law

... Make a table of current and resistance data and graph the data such that voltage is the slope of a best-fit line. ...
Follow-up Modeling for Wireless Personal Communication Systems
Follow-up Modeling for Wireless Personal Communication Systems

... maximum re-use of hardware and software IPs. Economic constraints push on flexibility while efficiency requirements often tend toward the opposite direction. This trend is intensified by the technological evolution which results in circuits dominated by interconnections, which are required for flexi ...
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HART

(AFE) Drives - Mirus International
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... treatment of harmonics associated with variable frequency drives (VFDs). They are quick to point out benefits over standard 6-Pulse VFDs equipped with diode bridge rectifiers such as, reduced line current harmonics, improved power factor and inherent regenerative capabilities. But they will hide the ...
Study and Simulation of Current Controlled PWM Inverters
Study and Simulation of Current Controlled PWM Inverters

... detail in [1].These are thus essentially open loop systems where the switching patterns are predetermined. There is no feedback and thus the system cannot ensure whether the output voltages and currents remain within desired margins. Current in this case and the nature of current (both magnitude and ...
MAX3480A/MAX3480B Complete, Isolated, 3.3V RS-485/RS-422 Data Interface _______________General Description
MAX3480A/MAX3480B Complete, Isolated, 3.3V RS-485/RS-422 Data Interface _______________General Description

... The MAX3480B features reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The MAX3480A’s driver slew rate is not limited, allowing transmission rates up to 2.5Mbps. These devices ...
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MAX1177 16-Bit, 135ksps, Single-Supply ADC with 0 to 10V Input Range General Description

... and features a separate digital supply input for direct interface with +2.7V to +5.25V digital logic. The MAX1177 accepts an analog input voltage range from 0 to +10V. It consumes no more than 26.5mW at a sampling rate of 135ksps when using an external reference, and 31mW when using the internal +4. ...
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A Closed-Loop, Wideband, 100A Active Load
A Closed-Loop, Wideband, 100A Active Load

... vulnerable to damage from inappropriate inputs. Follow the remainder of this step in strict accordance with the instructions given. Turn power on, bias Q1’s drain from a 1V supply and apply a –0.1000V DC input while monitoring Q1’s drain current with an ammeter. Trim the “Gain” adjustment for a 10.5 ...
First Trans-Rupter II Transformer Protector Installation in Brazil
First Trans-Rupter II Transformer Protector Installation in Brazil

... • Additional auxiliary contacts, for use with CEMIG’s SCADA system. • An electrical operation counter. The peak value of every fault current interrupted would be stored in the coordinating digital protection relay. • Additional remote gas-density indicator contacts. • A loss-of-dc-voltage relay. • A ...
High Brightness LED Controller using the MC9RS08KA2
High Brightness LED Controller using the MC9RS08KA2

... A fixed frequency step-down (buck) DC to DC converter is implemented with the KA2 for usage in high brightness LED driving applications. The KA2 consists of all active functions required to directly implement a step-down converter with a minimum number of external components. The KA2 enables control ...
Improving Proximity and Touch Interfaces: Capacitive Sensors with
Improving Proximity and Touch Interfaces: Capacitive Sensors with

... The charge-discharge cycle is governed by the sampling rate (fs). If the voltage of one of the RC timing circuits falls below the internal reference voltage Vref, the respective comparator output will become LOW. The logic following the comparators determines which comparator switches first. If the ...
PS9505,PS9505L1,PS9505L2,PS9505L3  Data Sheet Preliminary
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... (2) When designing the printed wiring board, ensure that the pattern of the IGBT collectors/emitters is not too close to the input block pattern of the photocoupler. If the pattern is too close to the input block and coupling occurs, a sudden fluctuation in the voltage on the IGBT output side might ...
Studying Characteristic Curves with LabVIEW
Studying Characteristic Curves with LabVIEW

PSoC 4 Programmable Gain Amplifier (PGA_P4)
PSoC 4 Programmable Gain Amplifier (PGA_P4)

... The Programmable Gain Amplifier uses one of the amplifiers and resistor blocks found in the CTB (see Definitions) to create a user adjustable gain non-inverting amplifier. Two PGAs can be created from a single CTB block. You can find details about this block in the applicable device datasheet and TR ...
T200 使用说明书 THE MANUAL FOR SIGELEI T200 SIGELEI T200
T200 使用说明书 THE MANUAL FOR SIGELEI T200 SIGELEI T200

Infineon - Article - Surge current pulse generator
Infineon - Article - Surge current pulse generator

AN1953
AN1953

... discontinuous mode. In this operation mode there is a high peak current which means that this kind of approach could be used for power below 600W. Here, the system works with fixed ON-time and variable frequency and functions as follows: The main supply is rectified by the bridge and the energy is s ...
A CMOS image sensor for low light applications
A CMOS image sensor for low light applications

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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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