FIELD: physics.
SUBSTANCE: micropower photosensor having a frequency output comprises a photodiode, the cathode of which is connected to the input of a logic inverter, the output of which is connected to the first lead of a resistor, a field-effect transistor, the gate of which is connected to the second output of the resistor, and the source and drain of the field-effect transistor are connected to the input of the logic inverter, the logic inverter being an inverting Schmitt trigger, the anode of the photodiode is connected to a null circuit, and the output of the Schmitt trigger is the output of the device.
EFFECT: high sensitivity, wider dynamic range of converting radiation into a pulse frequency and low power consumption.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| MICROPOWER PHOTOSENSOR | 2014 |
|
RU2554681C1 |
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| DEVICE FOR CHECKING DC SUPPLY DISCHARGE | 0 |
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| PHOTOCURRENT AMPLIFIER | 0 |
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RU2554646C1 |
