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US 10,424,683 B1Granted
Photodetector comprising a single photon avalanche diode and a capacitor
AssigneeHi LLC
InventorsBruno Do Valle, Rong Jin, Jacob Dahle, Husam Katnani
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Abstract
An exemplary photodetector includes a SPAD and a capacitor. The capacitor is configured to be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source. The capacitor is further configured to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.
Claims30
A photodetector comprising:
- a single photon avalanche diode (SPAD);
- and
- a capacitor configured to
- be charged, while the SPAD is in a disarmed state, with a bias voltage by a voltage source, and
- supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.
2 more elements
A method comprising:
- charging a capacitor connected to a single photon avalanche diode (SPAD) with a bias voltage while the SPAD is in a disarmed state;
- and
- using the capacitor to supply, when the SPAD is put in an armed state, the bias voltage to an output node of the SPAD such that a voltage across the SPAD is greater than a breakdown voltage of the SPAD.
Dependencies are inferred from the claim text.