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Low Noise Infrared Detector
Low Noise Infrared Detector

Constant-On-Time (COT) SupIRBuck™ DC
Constant-On-Time (COT) SupIRBuck™ DC

... loads from 6A to 15A. Each package size has two footprint compatible VOUT: 0.5V to 12V devices with different current ratings making it very easy to scale up or down Excellent efficiency at very low output current levels to meet optimal price and performance requirements. These options and Programma ...
Hi, I have connected the circuit as shown above. Opamp is used as
Hi, I have connected the circuit as shown above. Opamp is used as

... Hi, I have connected the circuit as shown above. Opamp is used as a comparator The positive terminal of opamp is given fixed voltage of 2.5 V. The negative terminal is given a voltage divider biasing. When IR ray is incident on the sensor, its resistance is less than that of the resistor. Hence volt ...
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... the correct symbol for LDR ...
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Slide 1

... switching pulse width and frequency to stabilize the output. SW Transformer : Step down the voltage with a high frequency transformer. ...
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Detection of Harmful Algal Blooms

IDUINO for Maker`s life Easy Light Dependent Resistor Module
IDUINO for Maker`s life Easy Light Dependent Resistor Module

living with the lab
living with the lab

... enclosure to properly direct the IR light. Your kit includes the black pieces shown. Insert the legs of the LED through the holes in the longer black cylinder, and then install the smaller top piece over the exposed end of the LED. If you don’t have a shield, a piece of paper can be rolled up and ta ...
1.1 Digital vs. analog sensors
1.1 Digital vs. analog sensors

... Older,  analog  sensors  typically  produce  a  voltage  or  current  output  in  response  to   the  characteristic  (light,  temperature,  etc.)  that  they  measure.  Meters  are  then  used   to  measure  the  resulting  voltage  or   ...
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Section 3 – Input Devices

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Higher Physics - Kelso High School

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8 Channel array - K

LDR LDR (or Light Dependant Resistor, or Photoresistor) is a
LDR LDR (or Light Dependant Resistor, or Photoresistor) is a

... Output: This module outputs 5v when the sensor receives no light (the circuit is open) and 0v when exposed to bright light (the circuit is closed). When connected to an input on the Arduino using the TinkerKit Shield, you can expect to read values from 0 to 1023. Module Description: This module feat ...
IR based intelligent Automatic washbasin / mirror lamp controller
IR based intelligent Automatic washbasin / mirror lamp controller

... energy of the photon) is determined by the energy gap of the semiconductor. An LED is often small in area (less than 1 mm2), and integrated optical components may be used to shape its radiation pattern. LEDs present many advantages over incandescent light sources including lower energy consumption, ...
< 1 ... 2978 2979 2980 2981 2982

Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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