Light Sensor Circuit
By: Arisa, Iffat R
.
Publisher: New Delhi STM Journals 2019Edition: Vol.9(2), May-Aug.Description: 7-11p.Subject(s): Electrical EngineeringOnline resources: Click here
In:
Trends in electrical engineering (TEE)Summary: The presence of light increases current in the photo diode or phototransistor. LM317 supplied lower voltage DC power in the circuit. Capacitors are connected in parallel with the DC output in order to filter out any high frequency AC signal coming from the noise. NE555P Timer produced accurate oscillation. BPV11 is used as a photodiode. LM311 is the comparator and the light on/off is converted to low/ high of the comparator output.
| Item type | Current location | Call number | Status | Date due | Barcode | Item holds |
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Articles Abstract Database
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School of Engineering & Technology Archieval Section | Not for loan | 2020630 |
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The presence of light increases current in the photo diode or phototransistor. LM317 supplied lower voltage DC power in the circuit. Capacitors are connected in parallel with the DC output in order to filter out any high frequency AC signal coming from the noise. NE555P Timer produced accurate oscillation. BPV11 is used as a photodiode. LM311 is the comparator and the light on/off is converted to low/ high of the comparator output.
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