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TL3016 数据资料 dataSheet 下载
TL3016 数据资料 dataSheet 下载

... http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requ ...
TS-100 - Apogee Instruments
TS-100 - Apogee Instruments

Lesson C7-1
Lesson C7-1

... Watts or wattage Is a measure of electrical power.  Electrical power is work being done by current(amperage) under pressure(voltage) in getting the electrons through the resistance of wires and machines back to the ...
FOR IMMEDIATE RELEASE E-T-A`s Programmable Electronic
FOR IMMEDIATE RELEASE E-T-A`s Programmable Electronic

... electronic circuit breaker that enables users to program the current rating, program the lowvoltage threshold, control circuits remotely, and prioritize loads during battery backup. No conventional circuit breaker offers this degree of circuit protection and control for telecommunications equipment. ...
Basic Circuits
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... i. Make 3 light bulbs light up. Unscrew one bulb, what happens to the other 2? Unscrew 2 bulbs, what happens to the 3rd bulb? ...
a wide range fuzzy based maximum power point tracker for
a wide range fuzzy based maximum power point tracker for

Reigh Walling Commen.. - pes-psrc
Reigh Walling Commen.. - pes-psrc

... This document is prepared to indicate the type of information regarding fault current contributions from wind farms for use in interconnection impact studies. Knowledge of contribution of fault current from a wind farm to a transmission system is required to assess the impact of the wind farm interc ...
Sepam 2000 Retrofit - Schneider Electric
Sepam 2000 Retrofit - Schneider Electric

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CHARACTERISATION OF THE ELECTRICAL RESPONSE OF A APPLICATIONS

... CMOS failed without the use of external components. The results of this work may be applied to at least two [7] problems found with CMOS integration. As is clear from Eq. (6) and Figure 2, resistance modulation is achievable by means of a control current. This allows for very fine tuning of a resist ...
DISTRIBUTED MAXIMUM POWER POINT TRACKING WITH
DISTRIBUTED MAXIMUM POWER POINT TRACKING WITH

... same structure is applicable to buck-boost or other DC-DC converter topologies. Moreover, in figure 5 a Norton equivalent of the bulk impedance is adopted, which is calculated from the voltage and power delivered by the DC-DC converter. The first control condition for boost, buck-boost and other ste ...
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Call Pulseout(17, 0.0013, 1)

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AN113 - Power Conversion, Measurement and Pulse Circuits
AN113 - Power Conversion, Measurement and Pulse Circuits

... The LTC1799’s output is divided down to form a 2-phase 925Hz square wave clock. This frequency, harmonically unrelated to 60Hz, provides excellent immunity to harmonic beating or mixing effects which could cause instabilities. S1 and S2 receive complementary drive, causing the FET-A1 based stage to ...
0508 - cired
0508 - cired

... starting in May 2012). Final results will be available after the end of the validation period in summer 2013. All results discussed in this chapter are based on manually reviewed data of one-minute average values, where untypical grid situations were filtered out which would have influenced the vali ...
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Design of a Three-Phase Unity Power Factor Single-Stage

AND8255/DA Simple DC SPICE Model for the LLC
AND8255/DA Simple DC SPICE Model for the LLC

... 50% duty cycle half−bridge delivers high voltage square waves swinging from 0 to the input voltage Vin to a resonating circuit. By adjusting the frequency via a voltage−controlled oscillator (VCO), the feedback loop can adjust the output level depending on the power demand. ...
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... A SQUID is by definition a low impedance device. Typically, room-temperature electronics are optimized for high impedances. Consequently, this impedance mismatch results in a decrease in the signal-to-noise ratio. There are many schemes which tackle this problem successfully, e.g. non-dispersive rea ...
AND8273 - Design of a 100 W Active Clamp Forward DC
AND8273 - Design of a 100 W Active Clamp Forward DC

... Using the Design Tool, an rms magnetizing current of 0.294 A is calculated. A ceramic capacitor is preferred due its low equivalent series resistance (ESR). TDK’s C3216X7R2J103M is used. Although maximum drain voltage of this design is 150 V, a 630 V capacitor is used as it is readily available. ...
MAX1479 300MHz to 450MHz Low-Power, Crystal-Based +10dBm ASK/FSK Transmitter General Description
MAX1479 300MHz to 450MHz Low-Power, Crystal-Based +10dBm ASK/FSK Transmitter General Description

... OOK, and FSK data in the 300MHz to 450MHz frequency range. The MAX1479 supports data rates up to 100kbps in ASK mode and 20kbps in FSK mode (both Manchester coded). The device provides an adjustable output power of more than +10dBm into a 50Ω load. The crystal-based architecture of the MAX1479 elimi ...
Line / Load Reactors
Line / Load Reactors

From 0.3 sec. Up to 1 min. CYCLIC TIMER
From 0.3 sec. Up to 1 min. CYCLIC TIMER

... MODULE'S SUPPLYING. The Circuit I-110 had to be supplied by 230 VAC. Using an adequate plug and a cable for mains connect this last one to the input terminal 230 VAC. Install a fuse and a switch as it is indicated in General Wiring Map (see hereafter). Both are necessary to protect the module and fo ...
Lead-Acid Fast-Charge IC
Lead-Acid Fast-Charge IC

BODAS Controller RC Series 21
BODAS Controller RC Series 21

< 1 ... 1101 1102 1103 1104 1105 1106 1107 1108 1109 ... 2207 >

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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