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LED as a Photodiode

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LED as a Photodiode
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Reverse biased LED Shine a light source onto the LED, small current generated (~10nA?) Use large resistor as a current sense resistor (1M to 10M) As DVM input impedance typically 1Meg, will need to buffer voltage generated by current sense resistor (or DVM will load circuit).

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Charge Amplifier with Capacitive Source

tdavison86

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tdavison86

146 Circuits

Date Created

3 years, 7 months ago

Last Modified

3 years, 7 months ago

Tags

  • led
  • resistors
  • opamp
  • photodiode

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