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Aalborg Universitet
Aalborg Universitet

Soft-Switching Full-Bridge PWM DC–DC
Soft-Switching Full-Bridge PWM DC–DC

XP1080-QU
XP1080-QU

Datasheet - RobotShop
Datasheet - RobotShop

... Strain-gauge load cells convert the load acting on them into electrical signals. The measuring is done with very small resistor patterns called strain gauges - effectively small, flexible circuit boards. The gauges are bonded onto a beam or structural member that deforms when weight is applied, in t ...
CT425 PID Temperature Controller
CT425 PID Temperature Controller

... On/Off and Alarm work similarly with the only difference being how Hysteresis is used. Please see the Hysteresis description for further information. When set to Disabled, the output is de-energized regardless of the Reverse Acting setting. Reverse Acting: Setting this to True causes the respective ...
Auto – Word Document
Auto – Word Document

... e) switches up to 12 steps for each switching ratio f) option of selecting switched steps as fixed steps g) adjustable capacitor current to current transformer ratio (c/k value or sensitivity) from 0.025A to 1.5A. h) selectable switching on and off delays of 10, 30, 60, 120, 180, 300, and 500 second ...
3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver ADN2847
3.3 V Dual-Loop 50 Mbps to 3.3 Gbps Laser Diode Driver ADN2847

CMOS Hex Voltage-Level Shifter for TTL-to
CMOS Hex Voltage-Level Shifter for TTL-to

Evaluates:  MAX2750/MAX2751/MAX2752 MAX2750/MAX2751/MAX2752 Evaluation Kits General Description Features
Evaluates: MAX2750/MAX2751/MAX2752 MAX2750/MAX2751/MAX2752 Evaluation Kits General Description Features

... The MAX2750/MAX2751/MAX2752 evaluation kits (EV kits) simplify evaluation of the MAX2750/MAX2751/ MAX2752 VCOs. These kits enable testing of the devices’ RF performance and require no additional support circuitry. The signal output uses an SMA connector to facilitate the connection to RF test equipm ...
File - SPHS Devil Physics
File - SPHS Devil Physics

... represented in terms of energy change per charge moving through a battery and a resistor.  Since electric potential difference times charge is energy, and energy is conserved, the sum of the potential differences about any closed loop must add to zero.  The electric potential difference across a r ...
L35to36_MOSFET
L35to36_MOSFET

MAX17007A/MAX17007B/MAX17008 Dual and Combinable QPWM Graphics Core Controllers for Notebook Computers General Description
MAX17007A/MAX17007B/MAX17008 Dual and Combinable QPWM Graphics Core Controllers for Notebook Computers General Description

... The MAX17007A/MAX17007B/MAX17008 are dual QuickPWM™ step-down controllers intended for general power generation in battery-powered systems. The two switched-mode power supplies (SMPSs) can also be combined to operate in a two-phase single-output mode. Constant on-time Quick-PWM operation provides fa ...
OPA695 Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES
OPA695 Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable FEATURES

... This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete devi ...
1 Introduction to all optical switching technologies
1 Introduction to all optical switching technologies

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,

... compensation strategy implemented using an UPQC type compensator. Their proposed compensation scheme enhances the system power quality, exploiting fully DC–bus energy storage and active power sharing between UPQC converters, features not present in DVR and D–STATCOM compensators. The internal contro ...
Motional feedback with loudspeakers
Motional feedback with loudspeakers

... with that atfo. To obtain at the frequency tfo an acous(since; with a constapt displacement amplitude, the actic power that is equal to that at frequencies higher than celeration increases with frequency). Because of this fo, the amplifier must thus be capable of delivering an the higher harmonics g ...
IOSR Journal of Electronics and Communication Engineering (IOSRJECE)
IOSR Journal of Electronics and Communication Engineering (IOSRJECE)

Spectroscopy of Light Emission from a Scanning Tunneling
Spectroscopy of Light Emission from a Scanning Tunneling

... photons is found to be independent of tunneling current but spectra depends on the materials of tunneling junctions and on applied bias voltage, I-eelectrons. For each energy of tunneling tunneling junction, the average spectrum at fixed bias voltage has been obtained from a set of ...
BD00HC5WEFJ
BD00HC5WEFJ

D=c System Short=circuit Current Calculations
D=c System Short=circuit Current Calculations

... currents, is also applicable when calculating the shortcircuit duty on a feeder circuit breaker. The resistance and inductance of the feeder circuit breaker are neglected when calculating the duty on that circuit breaker and, therefore, the calculation of the shortcircuit current is usually the same ...
TS3004 - Silicon Labs
TS3004 - Silicon Labs

... where ICPWM and VCPWM is the current supplied and voltage applied to the CPWM capacitor, respectively. The pulse width is determined based on the period of FOUT and should never be greater than the period at FOUT. Make sure the PWM_CNTRL pin is set to at least 400mV when calculating the pulse width ...
MP6902 Synchronous Rectification Controller Application Note
MP6902 Synchronous Rectification Controller Application Note

R.M.A. Dawson, Z. Shen, D.A. Furst, S. Connor, J. Hsu, M.G.Kane, R.G. Stewart, M.H. Lu, A. Ipri, J.C. Sturm, et al, "A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers," SID Symposium Digest 30, 438 (1999).
R.M.A. Dawson, Z. Shen, D.A. Furst, S. Connor, J. Hsu, M.G.Kane, R.G. Stewart, M.H. Lu, A. Ipri, J.C. Sturm, et al, "A Polysilicon Active Matrix Organic Light Emitting Diode Display with Integrated Drivers," SID Symposium Digest 30, 438 (1999).

Resistor-Capacitor (RC) Circuits
Resistor-Capacitor (RC) Circuits

IOSR Journal of Electrical and Electronics Engineering PP 37-42 www.iosrjournals.org
IOSR Journal of Electrical and Electronics Engineering PP 37-42 www.iosrjournals.org

... consumption, we will derive analytical expressions for the four noise parameters directly from device noise model and will then examine several LNA architectures. From this, we will design a LNA with near minimum noise figure, along with excellent impedance match and good power gain. The Low Noise A ...
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Resistive opto-isolator



Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.
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