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Draft2 - Baartman`s computer at TRIUMF
Draft2 - Baartman`s computer at TRIUMF

... principle, more orders of magnitude sensitivity are available: a similar scanner installed in our radioactive beam facility can measure currents to the fraction of a pA level. The data file, consisting of 6561 current readings, 81 positions and 81 voltages or angles in this particular case, is proce ...
Advanced Non-Inverting Step up/down Converter with LQR Control
Advanced Non-Inverting Step up/down Converter with LQR Control

Identification of Terminal Connection and System Function for Sensitive Frequency Response
Identification of Terminal Connection and System Function for Sensitive Frequency Response

... the network is yet another factor to be accounted. Namely, the source could be connected between line and ground or between line and neutral. This matter has also been considered. Thus, in all there exist 14 configurations, six system functions, and two different possiways of excitation, implying bi ...
Background Statement for SEMI Draft Document #4773
Background Statement for SEMI Draft Document #4773

... facility based on a set of ‘typical’ parameters. The goal of this table is to provide equipment suppliers and the endusers with a reasonable target values towards which to strive, both from the perspective of limiting the amount of available fault current at the facilities level, as well as increasi ...
MAX5976B Evaluation Kit Evaluates: General Description Features
MAX5976B Evaluation Kit Evaluates: General Description Features

... 3) Turn on the power supply and set the supply to 12V, then disable the power supply. 4) Connect the positive terminal of the power supply to the VIN banana jack on the EV kit. Connect the negative terminal of the power supply to the GND banana jack. 5) Enable the power supply. 6) Verify that th ...
Motorola MC145436A - Telephone Tribute
Motorola MC145436A - Telephone Tribute

Lecture Slides - UTK-EECS
Lecture Slides - UTK-EECS

LTC3619 - Linear Technology
LTC3619 - Linear Technology

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103_unit_2

... not a decimal number. Now that the number has been converted into engineering notation format with a ± 3, ± 6, ± 9, or ± 12 superscript value, the shorthand substitution can be made. The number 39 x103 can be made into 39k by substituting k for x103. Look at the second number in Figure 24. Conver ...
25471_energy_conversion_4
25471_energy_conversion_4

A Survey of Neural Front End Amplifiers and Their Requirements
A Survey of Neural Front End Amplifiers and Their Requirements

... potential is in the 100-mV range; but at a relatively short distance away from the cell surface, this potential falls away rapidly. This is why a gain in the 40-dB range is the least amount one can get away with [4]. Action potentials can be argued to have useful frequency content between 100 Hz to ...
AN-931 APPLICATION NOTE
AN-931 APPLICATION NOTE

Industrial Automation www.infineon.com/automation
Industrial Automation www.infineon.com/automation

... Human Machine Interface (HMI) ...
UM0243
UM0243

... As soon as stand alone mode has been detected, the motor is turned on. The first interrupt request is the one coming from pin PB5, the zero-crossing mains voltage detection pin, the sensitivity has been set so that both rising and falling edges of the signal generate the interrupt request. As soon a ...
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S8VS (15/30/60/90/120/180/240/480-W Models)
S8VS (15/30/60/90/120/180/240/480-W Models)

... *4. To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. *5. Displayed on 7-segment LED. (character height: 8 mm) *6. Resolution of output voltage indication: 0.1 V, Precision of output voltage indication: ±2% (percentage of output voltage value, ±1 ...
convertion of galvanometer into voltmeter
convertion of galvanometer into voltmeter

ADS1252 数据资料 dataSheet 下载
ADS1252 数据资料 dataSheet 下载

... The ADS1252 contains a fully differential analog input. In order to provide low system noise, common-mode rejection of 100dB, and excellent power-supply rejection, the design topology is based on a fully differential switched-capacitor architecture. The bipolar input voltage range is from –4.096 to ...
Poor Man`s 1-GHz
Poor Man`s 1-GHz

Voltage Profiles in Residential Neighbourhoods with High PV
Voltage Profiles in Residential Neighbourhoods with High PV

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244-33LOADS
244-33LOADS

II 777 HVR SP B Installation Instructions
II 777 HVR SP B Installation Instructions

... line or load side of the magnetic contactor. Note: For motors with full load amps less than 25 Amps, loop the conductors through the holes marked "A" and "B" according to Table No. 1 below. The rectangular holes behind the holes marked "A" and "B" are provided for wire looping. (see Figure No. 1). 3 ...
AH5795  SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER
AH5795 SINGLE PHASE HALL EFFECT LATCH SMART FAN MOTOR CONTROLLER

... nominal motor voltage. The motor speed is proportional to the PWM signal duty. For example, with 5V nominal motor, Vdd pin is maintained at 5V typical while varying the PWM control signal duty to adjust the motor speed linearly. Figure below shows the output O1 and O2 in relation to PWM speed contro ...
"Supply-Voltage Supervisors"
"Supply-Voltage Supervisors"

... for undervoltage conditions at the SENSE input. During power up, the RESET output becomes active (low) when VCC attains a value approaching 3.6 V. At this point (assuming that SENSE is above VIT+), the delay timer function activates a time delay, after which outputs RESET and RESET go inactive (high ...
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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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