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LTC490 - Linear Technology
LTC490 - Linear Technology

... A typical connection of the LTC490 is shown in Figure 5. Two twisted-pair wires connect two driver/receiver pairs for full duplex data transmission. Note that the driver and receiver outputs are always enabled. If the outputs must be disabled, use the LTC491. There are no restrictions on where the c ...
3-Channel SDTV Video Amplifier with 5th-Order Filters and 5.2
3-Channel SDTV Video Amplifier with 5th-Order Filters and 5.2

... therefore it is also nonlinear. True chominance (C) is derived from linear RGB, and thus the difference between chroma (C') and chrominance (C) exists. The color difference signals (P'B/ P'R/U'/V') are also referenced this way to denote the nonlinear (gamma-corrected) signals. R'G'B' (commonly misla ...
Load regulation - s3.amazonaws.com
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... IC Voltage Regulators The only external components required with the 78XX series are input and output capacitors and some form of heat sink. These IC’s include thermal shutdown protection and internal current limiting. The 78XX series are primarily used for fixed output voltages, but with additiona ...
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SP 200 - Farnell
SP 200 - Farnell

... The SP 200 features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user selectable. The SP 200 features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. LED backlighting ensures excellent readability un ...
Chapter 27 - SMU Physics
Chapter 27 - SMU Physics

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N-type (ex. Silicon doped with Phosphorus) has extra electron

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... A controller to charge a Li-ion battery from a solar panel needs to do a number of things to protect the solar cell and the battery. It needs to prevent reverse current (with a diode) so that the battery does not drive the solar cells backwards when they are shaded. The charge controller needs to re ...
SG6105A Power Supply Supervisor + Regulator + PWM upervisor+Re
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... conditions is mandatory in PC power supplies. These protection circuits can be realized by using many discrete components and comparators, which occupy a lot of PCB space and add to assembling costs. This single chip controller IC provides complete protection circuits, shunt regulators, and PWM cont ...
Ohm`s Law using a PhET Simulation
Ohm`s Law using a PhET Simulation

... The fundamental relationship among the three important electrical quantities current, voltage, and resistance was discovered by Georg Simon Ohm. The relationship and the unit of electrical resistance were both named for him to commemorate this contribution to physics. One statement of Ohm’s law is t ...
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PAM2421/ PAM2422/ PAM2423 Description Pin Assignments

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Lect 28 Example
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... V_ra20c := Ia_27c⋅ ( Rseries)V_ra20c = 8 V Find a triangle that has sides with voltage equal to voltage drop and current equal to If_se. Notice that the If_se extends from the Vt line, not the Ea line. In this case the triangle will have a plus If_se since cumulative compounded. ...
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... primary inductance be chosen between 10 μH and 20 μH. When LPrimary is lower than 10 μH, the converter operates at higher frequency, which increases switching loss proportionally. This leads to lower efficiency and longer charging time. When LPrimary is greater than 20 μH, the rating of the transfor ...
Review for Formula, Circuit and Resistance test
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... 20. In the lab, you have been given the following materials: a battery, three lamps, two switches and a fuse. You must assemble a circuit containing the battery, one switch and the three lamps. The lamps are to be connected in parallel, and they must all turn on at the same time and give off the sa ...
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Monte Carlo writeup
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SWITCHGEAR - National Grid

... defined in the Bilateral agreement. The principles of this document applies to equipment connected at other voltages”. This document defines the technical requirements for switchgear connected to the National Grid Electricity Transmission System at 400kV, 275kV, 132kV. The principles of this documen ...
Nuclear Spectroscopy with the PC
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... The PC is turned into a MCA using a software package called LABVIEW. LABVIEW is a product of National Instruments and is commonly used in research environments to interface computers with data collecting hardware. For the LABVIEW applications in this class you will not need to know any of the detail ...
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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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