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THE HANDYMAN`S GUIDE TO OSCILLOSCOPES
THE HANDYMAN`S GUIDE TO OSCILLOSCOPES

ULN2003A DataSheet
ULN2003A DataSheet

RF2044A GENERAL PURPOSE AMPLIFIER Features
RF2044A GENERAL PURPOSE AMPLIFIER Features

... RF input pin. This pin is NOT internally DC-blocked. A DC-blocking capacitor, suitable for the frequency of operation, should be used in most applications. DC-coupling of the input is not allowed, because this will override the internal feedback loop and cause temperature instability. Ground connect ...
The RC circuit
The RC circuit

Preventing HMI and Switch Damage from DC Inductive
Preventing HMI and Switch Damage from DC Inductive

EMIF07-LCD03F3
EMIF07-LCD03F3

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notic ...
ADN4664 数据手册DataSheet 下载
ADN4664 数据手册DataSheet 下载

... 100 Ω. The differential voltage is detected by the receiver and converted back into a single-ended logic signal. When the noninverting receiver input, RINx+, is positive with respect to the inverting input RINx− (current flows through RT from RINx+ to RINx−), then ROUTx is high. When the noninvertin ...
6. Organization, training and methodological support of students` self
6. Organization, training and methodological support of students` self

Three Ways to Detect Light We now establish terminology for photon
Three Ways to Detect Light We now establish terminology for photon

Operating Instructions TK-101
Operating Instructions TK-101

... The TK-101 transducer is integrated directly into the connection socket of our continuous filling level probes of the type series TK-30... It converts the resistance signal of the continuous level measuring sensors into a unit current signal (4..20 mA) proportional to the filling level height. In ca ...
AM Radio - s3.amazonaws.com
AM Radio - s3.amazonaws.com

... • The AM receiver receives the signal from the desired AM station as well a signals from other AM stations, FM and TV stations, cellular phones, and any other source of electromagnetic radiation. • The signal at the receiver antenna is the sum of all of these signals (superposition). • The AM receiv ...
UC2907 数据资料 dataSheet 下载
UC2907 数据资料 dataSheet 下载

... (–) SENSE: (Pin 4) This is a high-impedance pin allowing remote sensing of the system ground, bypassing any voltage drops which might appear in the power return line. This point should be considered as the true ground. Unless otherwise stated, all voltages are with respect to this point. Artificial ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

电路笔记 CN-0029  AD5390/AD5391/AD5392 DAC
电路笔记 CN-0029 AD5390/AD5391/AD5392 DAC

lecture1430873461
lecture1430873461

300-Watt, 100-kHz Converter Utilizes Economical Bipolar Planar
300-Watt, 100-kHz Converter Utilizes Economical Bipolar Planar

... Four 1 Ω/0.5 W resistors in parallel were used because it was a more economical than a single 0.25 Ω/2 W resistor. The low pass filter was built with R13 = 1 kΩ and C5 = 220 pF, giving a time constant of 220 ns, well within one period of the converter, even at light load operation. However, since th ...
LM2931 Series Low Dropout Regulators (Rev. G)
LM2931 Series Low Dropout Regulators (Rev. G)

... estimation, a circuit that is required to deliver a maximum of 10mA of output current from the regulator would need an output capacitor of only half the value compared to the same regulator required to deliver the full output current of 100mA. If the example of the tantalum capacitor in the circuit ...
MAX16801A/B/MAX16802A/B Offline and DC-DC PWM Controllers for High-Brightness LED Drivers General Description
MAX16801A/B/MAX16802A/B Offline and DC-DC PWM Controllers for High-Brightness LED Drivers General Description

... When the LED current needs to be tightly regulated, an additional on-board error amplifier with 1% accurate reference can be utilized. A wide dimming range can be implemented by using low-frequency PWM dimming. The MAX16801/MAX16802 feature an input undervoltage lockout (UVLO) for programming the in ...
File
File

... Also, be sure that the wires are pushed completely into the sockets with NO insulation showing! ...
3.5.4. Contact resistance to a thin semiconductor layer
3.5.4. Contact resistance to a thin semiconductor layer

TVS_web
TVS_web

... • What peak surge power is required (watts vs time) • Stand off voltage equal to or greater than the normal circuit operating voltage • Clamping voltage below the voltage that could cause damage to the protected component • Unipolar or bipolar configurations • Microsemi has over 12,000 TVS device ty ...
BDTIC New NovalithIC™ BTN8982TA Integrated High Current Half-Bridge Motor Drivers
BDTIC New NovalithIC™ BTN8982TA Integrated High Current Half-Bridge Motor Drivers

... Integrated High Current Half-Bridge Motor Drivers The BTN8982TA is an integrated high current half bridge for motor drive applications. It is part of the NovalithIC™ family containing one p-channel high-side MOSFET and one n-channel low-side MOSFET with an integrated driver IC in one package. Due to ...
SGC2363Z 数据资料DataSheet下载
SGC2363Z 数据资料DataSheet下载

... The information in this publication is believed to be accurate and reliable. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents, or other rights of third parties, resulting from its use. No license is granted by implication or ot ...
Experiment
Experiment

Electric Circuits: Potential difference (Grade 10
Electric Circuits: Potential difference (Grade 10

... Look at the circuits below. If we measured the potential dierence between the black dots in all of these circuits it would be the same just like we saw above. So we now know the total potential dierence is the same across one, two or three resistors. ...
< 1 ... 1385 1386 1387 1388 1389 1390 1391 1392 1393 ... 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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