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RT9746 - Richtek
RT9746 - Richtek

... VIN, OVPFB ---------------------------------------------------------------------------------------------------------------VOUT ------------------------------------------------------------------------------------------------------------------------System Level with Air Discharger, VIN, GND ---------- ...
A.M. Stankovic, D.J. Perreault, and K. Sato, Synthesis of Dissipative Nonlinear Controllers for Series Resonant DC/DC Converters, IEEE Transactions on Power Electronics , Vol. 14, No. 4, July 1999, pp. 673-682.
A.M. Stankovic, D.J. Perreault, and K. Sato, Synthesis of Dissipative Nonlinear Controllers for Series Resonant DC/DC Converters, IEEE Transactions on Power Electronics , Vol. 14, No. 4, July 1999, pp. 673-682.

... of undesirable deviations of stored energy) that assures exponential convergence toward the nominal trajectory, thus guaranteeing robust operation. This control design approach is denoted as “dissipativity based” in control and robotics literature [19]; while the basic version of this control design ...
$doc.title

LT6236/LT6237 - Rail-to-Rail Output 215MHz, 1.1nV/√Hz Op Amp/SAR ADC Driver
LT6236/LT6237 - Rail-to-Rail Output 215MHz, 1.1nV/√Hz Op Amp/SAR ADC Driver

... supply current with a 215MHz gain bandwidth product and a 70V/μs slew rate. Low noise, fast settling time and low offset voltage make this amplifier optimal to drive low noise, high speed SAR ADCs. The LT6236 includes a shutdown feature that can be used to reduce the supply current to less than 10μA ...
Master Syllabus Course: PHY 225, Introductory Experimental
Master Syllabus Course: PHY 225, Introductory Experimental

... This activity introduces simple electrical measurement using an analog ammeter to measure current and a digital multimeter (DMM) to measure voltage and electrical resistance. You will investigate the current-voltage characteristics of two electrical components: a resistor and a small incandescent li ...
181-7Z - Edwards Signaling
181-7Z - Edwards Signaling

... Warning— Each electrical rating is an individual maximum and cannot be exceeded! 1 The part number 183 is the same as 181 in all respects except the conduit connection, 181 is left and 183 is right. 2 Configuration with actuator away from the switch 3 Proximity of ferrous materials usually reduces s ...
Temperature Measurement and Control
Temperature Measurement and Control

... wide variety of probes. They are available in the −200 °C to +1350 °C range. The type K was specified at a time when metallurgy was less advanced than it is today and, consequently, characteristics vary considerably between examples. Another potential problem arises in some situations since one of t ...
1. Introduction
1. Introduction

... The reference voltage for this accelerometer is about 1.6V. A “g” of acceleration corresponds to 9.81 m/s2. So, for every increase of 300 mV above the reference voltage of 1.6V, there is an increase of 9.81 m/s2 in acceleration. This is different for the Zdirection of the accelerometer. Due to the g ...
ADM3232E 数据手册DataSheet 下载
ADM3232E 数据手册DataSheet 下载

... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
Speed Control of DC Motor using PIC 16F877A Microcontroller
Speed Control of DC Motor using PIC 16F877A Microcontroller

... applied in real-time development. Some can be solved by hardware technology and by the advance used of software, control system are analyzed easily and detail.DC Motors can be used in various applications and can be used in various sizes and rates as per our applications. The DC-Motor is used in dom ...
RPT-34PB3F
RPT-34PB3F

Fluke 1750 Three-Phase Power Recorder
Fluke 1750 Three-Phase Power Recorder

... All measurements comply with IEC61000-4-30 standards for correct evaluation of all measured values including voltage, current, power, harmonics, flicker etc. Quick and reliable configuration: PDA wireless “front panel interface” provides the ability to verify setup without a laptop along with a wind ...
Ohms Law and Circuits KEY
Ohms Law and Circuits KEY

... In the series circuit, how does the total potential change from using all three bulbs to only using two? How does it change in the parallel circuit? ...
TP-8101, TP-8102, TP-8103, TP-8124, TP-8125
TP-8101, TP-8102, TP-8103, TP-8124, TP-8125

... Make all electrical connections according to installation wiring diagrams. Comply with national and local electrical codes. No. 18 multi-conductor thermostat cable may be used. Low voltage Class 2 wire is acceptable, but No. 18 or larger 600V wire should be used if splices are to be made in the same ...
Preliminary Datasheet  Features
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... In most applications, the part does not dissipate much heat due to its high efficiency. However, in some conditions when the part is operating in high ambient temperature with high RDS(ON) resistance and high duty cycles, such as in LDO mode, the heat dissipated may exceed the maximum junction tempe ...
AND8336 Design Examples of On Board Dual Supply Voltage Logic
AND8336 Design Examples of On Board Dual Supply Voltage Logic

... are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor doe ...
DC load line - UniMAP Portal
DC load line - UniMAP Portal

... around their Q-point values. • When the Q-point is centered, IC and VCE can both make the maximum possible transitions above and below their initial dc values. • When the Q-point is above the center on the load line, the input signal may cause the transistor to saturate. When this happens, a part of ...
- Majlesi Journal of Electrical Engineering
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Current-Mode Second-Order Square-Root
Current-Mode Second-Order Square-Root

... [email protected] Abstract -In this study, square-root-domain current-mode second order bandpass filter circuit has been suggested for low frequency applications. The design of the circuit was carried out with two subcircuits which are square-root circuit and squarer/divider circuit and this ...
1 - VIOT
1 - VIOT

... 1) Connect black test lead to “COM” terminal and red test lead to the “V/OHM” input terminal. 2) Set the function range switch to the OHM range. 3) Connect the test leads across the resistance under measurement and read the display value. Note: a) The polarity of the red test lead is “+”. b) When th ...
Elektroniczne Układy i Systemy Zasilania
Elektroniczne Układy i Systemy Zasilania

Lithium Ion Fast-Charge IC
Lithium Ion Fast-Charge IC

... Charge pending (temperature out of range) ...
a bidirectional switch based high-efficiency isolated
a bidirectional switch based high-efficiency isolated

... series resonant converter except with addition of bidirectional switch at the secondary side of transformer. In order to reduce the switch count the method can also be implement with half bridge and push-pull converter.The bidirectional switch which is connected in secondary side formed by connectin ...
Aurora • Cancer Sagittarius
Aurora • Cancer Sagittarius

About Continuous Wrist Strap Monitors
About Continuous Wrist Strap Monitors

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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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