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Environ 3 Wallbox Dimming System (Discontinued)
Environ 3 Wallbox Dimming System (Discontinued)

... 11. Ballasts shall be designed such that 3-foot and 4-foot linear T8 models can be mixed on the same dimmed circuit and maintain consistent light output at any output level. 12. Ballasts should be capable of striking lamps at any light level. 13. Ballasts shall comply with an “A” sound rating. 14. B ...
lecture 080 – latchup and esd
lecture 080 – latchup and esd

... • Latchup is prevented by: - Keeping the NMOS and PMOS transistors separated - Reducing the well resistance with appropriate well ties - Surrounding the transistors with guard rings • ESD is caused by triobelectric charging which discharges through the IC when the power is off • The current produced ...
Full-text PDF (accepted author manuscript)
Full-text PDF (accepted author manuscript)

... Multilevel converters have superior characteristics over the standard two-level converter such as reduced output harmonics, lower dv/dt and switching loss. They are widely used in high or medium voltage (>3kV) power conversion systems thanks to their capability to handle higher voltage and higher po ...
Basics of SMPS Layout
Basics of SMPS Layout

Design Optimization of High Frequency Transformer for Dual Active
Design Optimization of High Frequency Transformer for Dual Active

... battery based energy storage systems [1], [2]. Among DCDC converter topologies, bidirectional dual active bridge (DAB) isolated DC-DC converter [3], [4] shown in Fig. 1(a) is often considered as a preferred candidate for such applications because of its advantages on galvanic isolation, switching lo ...
UNIT 5 Ignition Systems
UNIT 5 Ignition Systems

... are directly aligned with the pole piece teeth. Position 6 is the result of pole piece reverse polarity. The transistor has turned off and the ground path for the primary ignition coil has opened. The straight vertical rise from position 6 is now displayed over to the extreme left side of the scope, ...
High-Speed, 4-A, 600-V High-Side Low
High-Speed, 4-A, 600-V High-Side Low

... UCC27714 is a 600-V high-side, low-side gate driver with 4-A source and 4-A sink current capability, targeted to drive power MOSFETs or IGBTs. The device comprises of one ground-referenced channel (LO) and one floating channel (HO) which is designed for operating with bootstrap supplies. The device ...
DS3901 Triple, 8-Bit NV Variable Resistor with Dual Settings and User EEPROM
DS3901 Triple, 8-Bit NV Variable Resistor with Dual Settings and User EEPROM

KEY COMPONENTS FOR POWER FACTOR CORRECTION IN
KEY COMPONENTS FOR POWER FACTOR CORRECTION IN

... Apart from your excellent experience, the construction of reliable and competitive equipment for power factor correction requires top-class components at reasonable cost. No compromise in quality and safety should be permitted when it comes to the key part of your PFC equipment. Germany’s largest ma ...
Design Optimization of High Frequency Transformer for Dual
Design Optimization of High Frequency Transformer for Dual

... battery based energy storage systems [1], [2]. Among DCDC converter topologies, bidirectional dual active bridge (DAB) isolated DC-DC converter [3], [4] shown in Fig. 1(a) is often considered as a preferred candidate for such applications because of its advantages on galvanic isolation, switching lo ...
Reverse Battery Protection
Reverse Battery Protection

introduction-to-the
introduction-to-the

... Programmers work in the virtual world. Machinery works in the physical world. How does one connect the virtual world to the physical world? Enter the microcontroller. A microcontroller is basically a small-scale computer with generalized (and programmable) inputs and outputs. The inputs and outputs ...
Performance Validation
Performance Validation

LTM4619 - Dual, 26VIN, 4A DC/DC uModule Regulator
LTM4619 - Dual, 26VIN, 4A DC/DC uModule Regulator

... switching mode DC/DC power supply. It can deliver up to 4A (DC current) for each output with few external input and output capacitors. This module provides precisely regulated output voltages programmable via external resistors from 0.8VDC to 5.0VDC over 4.5V to 26.5V input voltages. The typical app ...
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... transistors are designed to afford the greatest common-emitter current gain, βF, in forward-active mode. If this is the case, the collector–emitter current is approximately proportional to the base current, but many times larger, for small base current variations. • Saturation: With both junctions f ...
AP7217
AP7217

... layout, the output capacitor must be placed as close as possible to OUT and GND pins, and keep the leads as short as possible. ENABLE/SHUTDOWN Operation The AP7217 is turned on by setting the EN pin high, and is turned off by pulling it low. If this feature is not used, the EN pin should be tied to ...
ALM2402-Q1 Dual Op-amp with High Current Output
ALM2402-Q1 Dual Op-amp with High Current Output

... Each op-amp includes over-temperature flag/shutdown. It also includes separate supply pins for each output stage that allow the user to apply a lower voltage on the output to limit the Voh and henceforth the on-chip power dissipation. The ALM2402 is packaged in a 12 pin leadless DRR package and 14 p ...
Datasheet
Datasheet

... The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. ...
AN10909 Low VCEsat transistors in medium power load switch
AN10909 Low VCEsat transistors in medium power load switch

A-156 System  A - 100 1.  Introduction QNT
A-156 System A - 100 1. Introduction QNT

... If an ADSR is used as a control voltage source the A-129/3 is no longer required as the ADSR generates only positive voltages. One very interesting combination is with a Theremin module A-178 as the continuous voltage from the Theremin is converted into “musically correct“ intervals by the quantizer ...
A Progressive Way to Integrate Current Measurement into Modern Abstract
A Progressive Way to Integrate Current Measurement into Modern Abstract

What reliably supplies 24 V DC
What reliably supplies 24 V DC

PPS3210 Programmable DC Power Supply User`s Manual
PPS3210 Programmable DC Power Supply User`s Manual

FSSD07 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
FSSD07 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer

... baseband processor hosts to a common peripheral card or module, providing bi-directional support of the dualvoltage SD/SDIO or MMC cards available in the marketplace. Each host SDIO port has its own supply rail, such that hosts with different supplies can be interfaced to a common peripheral module ...
Supply Voltage Supervisors
Supply Voltage Supervisors

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Electrical ballast



An electrical ballast is a device intended to limit the amount of current in an electric circuit. A familiar and widely used example is the inductive ballast used in fluorescent lamps, to limit the current through the tube, which would otherwise rise to destructive levels due to the tube's negative resistance characteristic.Ballasts vary in design complexity. They can be as simple as a series resistor or inductor, capacitors, or a combination thereof or as complex as electronic ballasts used with fluorescent lamps and high-intensity discharge lamps.
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