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Circuit Note
Circuit Note

... this application have peak sensitivities at 470 nm (blue: CLS1522C/L213B/TR8), 550 nm (green: CLS15-22C/L213G/TR8), and 620 nm (red: CLS15-22C/L213R/TR8), with steep roll-off away from their peaks. The photodiodes used in this application have high shunt resistance and are operated in the photovolta ...
Basics of laws used in Solving DC circuits
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DTDG14GP
DTDG14GP

... otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document are no antiradiation design. ...
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Product Data Sheet: Power Amplifier — Type 2706
Product Data Sheet: Power Amplifier — Type 2706

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Operational amplifier

...  When Vin=0, Vout is NOT 0 due to mismatch of transistors in real circuit design.  It is more meaningful to specify input-referred offset voltage, defined as Vos,in=Vos,out / A.  Offset voltage may causes a DC shift of later stages, also causes limited precision in signal comparison. ...
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EUP2518  White LED Step-Up Converter In TSOT-23 Package
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... CAP and Inductor Selection The recommended value of inductor for 2 to 6 WLEDs applications are 10µH to 47µH. Small size and better efficiency are the major concerns for portable device. A 22µH inductor with low DCR (Inductor resistance) is recommended to improve efficiency. To avoid inductor saturat ...
THE PHOTOELECTRIC EFFECT
THE PHOTOELECTRIC EFFECT

... such as contact potentials of dissimilar metals, that may distort this value. The collector is a circular wire constructed so that a light beam can hit the center of the emitter without also hitting the collector. If light does hit the collector, then the photoelectric effect can also occur at the c ...
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... In this configuration the series active filter is voltage controlled in order to compensate the grid distortion, allowing the load voltage to be consisted only by the fundamental content. This way, the voltage compensated by the series active filter is composed by a fundamental content in order to c ...
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TI Audio and Infotainment Processor Solutions

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... falling frequency response of the speaker system in both the low and high frequency areas. A part of the equalization network is a high pass filter that removes low frequency signals that lie below the required frequency range for building acoustic measurements and a low pass filter that removes all ...
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ON DELAY | INLINE (SERIES CONNECTION)

... delay is selected by moving the switch of each increment to the ON position and adding their corresponding values (see examples below). This method provides a greater setting accuracy than is found on other units with an analog potentiometer.  Universal input voltage: 24-240V AC & 12-48V DC  DIP-s ...
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about voltage total harmonic distortion for single

Electronics 3 Class 16 Before the availability of high power
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... - The frequency can be controlled - Described later Load - The motor can be a common AC induction motor - As mentioned they are simpler and more reliable than DC motors Tachometer - This is optional - If it is very important to keep motor speed constant with variable load, then feedback is used Cont ...
Fundamentals of Linear Electronics Integrated & Discrete
Fundamentals of Linear Electronics Integrated & Discrete

Unit - Current Electricity Worksheet
Unit - Current Electricity Worksheet

... c) Voltage drop across each load. 12. Do resistors in parallel increase or decrease total resistance? 13. What resistance must be added in series to a circuit containing a 33 Ω resistor in order to draw 2.0 A of current from a 120 V source? 14. How much energy is dissipated in 10 minutes when a curr ...
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Name Class Date Electric Current 1. Water doesn`t flow in the pipe

... c. One volt is the potential difference between two points if 1 joule of energy is needed to move coulomb of charge between the two points. d. When a lamp is plugged into a 120-V socket, each coulomb of charge that flows in the current is raised to a potential energy of joules. e. Which offers more ...
TECHNICAL DATA
TECHNICAL DATA

< 1 ... 2104 2105 2106 2107 2108 2109 2110 2111 2112 ... 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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