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OP37 Low Noise, Precision, High Speed Operational Amplifier
OP37 Low Noise, Precision, High Speed Operational Amplifier

Effect of Source Inductance on the Performance of AC to DC
Effect of Source Inductance on the Performance of AC to DC

MAX4551/MAX4552/MAX4553 ±15kV ESD-Protected, Quad, Low-Voltage, SPST Analog Switches General Description
MAX4551/MAX4552/MAX4553 ±15kV ESD-Protected, Quad, Low-Voltage, SPST Analog Switches General Description

... The MAX4551/MAX4552/MAX4553 are ±15kV ESD-protected according to IEC 1000-4-2 at their NC/NO pins. To accomplish this, bidirectional SCRs are included onchip between these pins and the GND pin. In normal operation, these SCRs are off and have negligible effect on the performance of the switches. Whe ...
Synchronous-Buck Power Stage (Rev. A)
Synchronous-Buck Power Stage (Rev. A)

... For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as specified in JESD51-7, in an environme ...
Part 1: Answer the following questions (20 points)
Part 1: Answer the following questions (20 points)

... Part 2: Design your own circuit (40 points) Design a circuit and draw a circuit diagram using the proper symbols. Your circuit must contain a battery, a light bulb (if you would like to substitute another item that uses electrical power ...
MAX1774 Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover General Description
MAX1774 Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover General Description

... The MAX1774 is a complete power-supply solution for PDAs and other hand-held devices. It integrates two high-efficiency step-down converters, a boost converter for backup battery regulation, and four voltage detectors in a small 32-pin QFN or 28-pin QSOP package. The MAX1774 accepts inputs from +2.7 ...
Issues, Models and Solutions for Triac Modulated Phase Dimming of
Issues, Models and Solutions for Triac Modulated Phase Dimming of

... approximated to a DC voltage source due to the large difference between C1(internal to the dimmer) and Cfilt. The charging current of the filter capacitor is also the charging current for C1, which controls the firing angle of the dimmer. The charging current for C1 will be decreased from normal dim ...
Constant-Frequency, Current-Mode Step-Up DC/DC Controller ADP1621
Constant-Frequency, Current-Mode Step-Up DC/DC Controller ADP1621

... Frequency Control Input. Connect a resistor from FREQ to GND to set the free-running switching frequency between 100 kHz and 1.5 MHz. The nominal voltage of this pin is 1.4 V. Power Ground Input. PGND is the ground return for the internal gate driver and the negative input of the internal current-se ...
voltage sources and effects of an electric current
voltage sources and effects of an electric current

... drawing shows the basic principles only. An alternator produces a voltage that regularly changes polarity, called an alternating voltage. The diagrams in Figure 2.7 show the principle, in which one turn of the magnet causes the voltage to go from zero to a positive value, back to zero, then to a neg ...
Sample Paper Two partitioned (1)
Sample Paper Two partitioned (1)

... 38) Taking into account the presence of water, electrical installations installed outside in caravan park shall have minimum IP rating of a) IP5X b) IPX4 c) IP3X d) IPX2 39) Self supported suspension cables within agricultural situations should be a) at a height of at least 2M b) at a height of at l ...
Bio-impedance Measurement
Bio-impedance Measurement

Digital-Pixel Focal Plane Array Technology
Digital-Pixel Focal Plane Array Technology

... feeds an integrating capacitor. Simple switching and buffer circuits are used to connect the integrating capacitor voltage (proportional to the stored photoelectrons) to a multiplexor circuit for readout. As indicated in Figure 3, the integrating capacitor dominates the unit-cell area usage. Given t ...
Ohm`s Law - STLCC.edu :: Users` Server
Ohm`s Law - STLCC.edu :: Users` Server

... Repeat steps 1a through 1d with each of the other two resistors. (R2 and R3) Turn off the digital meters turn the voltage to zero, and then turn off the power supply. ...
HMC449LC3B
HMC449LC3B

... The HMC449LC3B is a x2 active broadband frequency multiplier utilizing GaAs PHEMT technology in a leadless RoHS SMT package. When driven by a 0 dBm signal the multiplier provides +9 dBm typical output power from 27 to 31 GHz. The Fo and 3Fo isolations are >25 dBc and >30 dBc respectively at 30 GHz. ...
Chpt 21 Lecture Powerpoint
Chpt 21 Lecture Powerpoint

... This work is protected by United States copyright laws and is provided solely for the use of instructors in teaching their courses and assessing student learning. Dissemination or sale of any part of this work (including on the World Wide Web) will destroy the integrity of the work and is not permit ...
Solution - University of California, Berkeley
Solution - University of California, Berkeley

... This value is particularly important in this logic style because the evaluate phases are usually implemented as pulses generating using NAND gates driven from the same clock but with one input delayed using inverters. We need to ensure that these pulses are sufficiently large across process variatio ...
PDF
PDF

... increase efficiency and reduce cost. However, traditional inverters have drawbacks, i.e. behave in a boost or buck operation only, and thus the obtainable output voltage range is limited, either lower or higher than the input voltage. The main switching device of VSI and CSI are not interchangeable, ...
A Three-Phase Grid-Connected Inverter for
A Three-Phase Grid-Connected Inverter for

PDF
PDF

... To use the drive as a generic inverter, it is necessary to provide PWM commands. J17 is a DB9 intended for connection to the BLDC motor in the dyno. Complete pin-out is given in the schematic (SK0014 rev 2). Pins 1 and 2 are 5V and ground, respectively, available to run a small external circuit. Pin ...
Indirect optical control of microwave circuits and antennas
Indirect optical control of microwave circuits and antennas

DIY KIT 140. Telephone Switcher MK2
DIY KIT 140. Telephone Switcher MK2

... coil) to the line via IC1, a bi-directional opto-isolator. This circuit has a low DC resistance but a high AC impedance which is required by telephone circuits when the line is looped. The RC network consisting of R4, R5 and C3 is used to provide impedance matching to the telephone line. The metal o ...
User Manual
User Manual

pierburg - MasterTurbo
pierburg - MasterTurbo

... The heart of an EPT is a double seat valve. It is operated on the one hand by a diaphragm through the supply vacuum (VAC connection), whilst a controlling magnetic force acts on the double seat valve via an armature on the other hand. The EPT accordingly forms from the vacuum (e.g. produced by a vac ...
Thermometry (pdf format)
Thermometry (pdf format)

dropper eaves
dropper eaves

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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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