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Theory and Designs for Building a White LED Headlamp
Theory and Designs for Building a White LED Headlamp

... White LEDs are actually solid state fluorescent lamps consisting of a LED emitting blue light which excites a phosphor which emits white light. These LEDs were developed by the Japanese company Nichia and subsequently have also been manufactured or marketed by HP, Chicago Miniature Lamp, and Sloan P ...
LDB24-xx-xxxx Datasheet
LDB24-xx-xxxx Datasheet

... that exceeds the rated operating current of the LED’s being powered. The “VDIM” used for the peak amplitude in the circuit above is the control voltage at the DIM input that will provide the optimum drive current for the LED lamps. This level can be approximated from the graph above right. 3. The DI ...
Experiment 9 – Bipolar Junction Transistor Amplifier
Experiment 9 – Bipolar Junction Transistor Amplifier

... signal, vi, for a peak-to-peak (p-p) value of about 300 mV. Display the output signal vO1 and compare it to the input signal for gain and phase shift. Make sure there is no discernible distortion in these signals. If there is distortion it will be necessary to reduce the amplitude of vi before proce ...
doc - Design Group
doc - Design Group

... series with a 300 Ohm current limiting resistor. See the design calculations / considerations for the 244 in the Ship Number Display Board section. Communication with the XBee Pic for Okay to Send and Message Waiting This was a data line only and did not require any special considerations. The only ...
AC Circuits
AC Circuits

Technical Description
Technical Description

... 8 Is the bidder an authorized distributor/dealer for the supply of the offered part? (If yes, attach a proof for the same.) 9 The part will be supplied in the original packing supplied by the manufacturer. 10 In any case, the quoting parties must commit to provide test report / conformance certifica ...
6S06pp_L27 - University of Iowa Physics
6S06pp_L27 - University of Iowa Physics

5408,7408,2 input AND gate.pdf
5408,7408,2 input AND gate.pdf

... 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to resul ...
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Direct Current DC Alternating Current (AC) AC current
Direct Current DC Alternating Current (AC) AC current

... • The current is supposed to flow from the hot side to the neutral, if too much current flows the fuse blows or the circuit breaker trips. • the ground is there for protection Æ to provide a safe path for current in the event of a short circuit • on some circuits (kitchens and bathrooms) there is ad ...
Document
Document

... The MMS101H is a digital latching bipolar magnetic switch that integrates TMR and CMOS technology in order to provide a magnetically triggered digital switch with high sensitivity, high speed, and low power consumption. It integrates a push-pull half-bridge TMR magnetic sensor and CMOS signal proces ...
EXPERIMENT 8: MOSFET – Common
EXPERIMENT 8: MOSFET – Common

... • Low power • Very small device (nm) • Simple manufacturing process • Only 1 current, ID ...
Modified Inverting Amplifier
Modified Inverting Amplifier

Experiment # 9
Experiment # 9

... respect to the magnitude as well as to the time. Therefore, conversion of an analog to a digital signal means the value of the analog signal function F(t) is measured at discrete times t0 = ti + i. Δt during a time interval tm = t – t0 and the indicated values changes with steps ΔF . Mostly the meas ...
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General Problem Statement

... – Put more time into research early on ...
soln_1-99
soln_1-99

Kit 48. Introduction To Audio Power Amplifiers
Kit 48. Introduction To Audio Power Amplifiers

The George Washington University School of Engineering and
The George Washington University School of Engineering and

Clippers And Clampers
Clippers And Clampers

... The effective reference level will either have a magnitude of VB+VON or VB-VON, depending on the relative polarities of the two sources (review combining voltage sources in series if necessary). Including Rf in the diode path creates a voltage divider when the diode is forward biased. The result of ...
FB2202B Digital Output with Position Feedback
FB2202B Digital Output with Position Feedback

... Line fault detection (LFD) Permanently self-monitoring Output with watchdog ...
Kirchhoff`s Voltage Law (KVL)
Kirchhoff`s Voltage Law (KVL)

... I = E / (R1+ R2+ R3); I = 9V/18kΩ = 0.5 mA; V1 = I×R1; V1 = 0.5 mA × 3 kΩ = 1.5 V V2 = I×R2 = 5 V; V3 = I×R3 = 2.5 V; Σ(Vij) = 1.5+5+2.5 = 9V = E ...
Chapter 3 - Electricity
Chapter 3 - Electricity

... Parallel ...
Download PGR-6101 Datasheet
Download PGR-6101 Datasheet

... Customizable insulation resistance setpoints for maximum protection Adjustable trip delay for quick protection and system coordination Two Form C output contacts for ground fault and insulation-resistance fault Two analog outputs indicate insulation resistance and ground-fault current Alarms when CT ...
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There are 9 Multiple choice questions, 3 fill in the blank, and two

FB2201B Digital Output with Position Feedback
FB2201B Digital Output with Position Feedback

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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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