Receiving drive circuit, laser beam receiving circuit and lidar
AssigneeSuteng Innovation Technology Co., Ltd.
InventorZhuozhi YAN
Life of this patent
Estimating the term…
Abstract
This application discloses a receiving drive circuit, a laser beam receiving circuit, and a LiDAR. The receiving drive circuit includes a drive voltage output module, and the drive voltage output module includes: an anode drive voltage output terminal is configured to output a negative anode drive voltage; and a cathode drive voltage output terminal, connected to a cathode of the laser beam detector in the laser beam detection module and configured to output a positive cathode drive voltage, so that the laser beam detector converts the received laser beam signal into a current signal.
Claims12
A receiving drive circuit, applied to a laser beam detection module, wherein the laser beam detection module comprises one or more laser beam detectors, the receiving drive circuit comprises a drive voltage output module, and the drive voltage output module comprises:
- an anode drive voltage output terminal, connected to an anode of the laser beam detector in the laser beam detection module, wherein the anode drive voltage output terminal is configured to output an anode drive voltage, the anode drive voltage is a negative voltage, and an absolute value of the negative voltage is less than an absolute value of a reverse breakdown voltage of the laser beam detector;
- and
- a cathode drive voltage output terminal, connected to a cathode of the laser beam detector in the laser beam detection module, wherein the cathode drive voltage output terminal is configured to output a cathode drive voltage, the cathode drive voltage is a positive voltage, and the positive voltage is less than the absolute value of the reverse breakdown voltage,
- wherein the anode drive voltage and the cathode drive voltage jointly form a reverse bias voltage across two terminals of the laser beam detector, and an absolute value of the reverse bias voltage is greater than an absolute value of the reverse breakdown voltage of the laser beam detector.
A laser beam receiving circuit, comprising a receiving drive circuit and a laser beam detection module, wherein the laser beam detection module comprises one or more laser beam detectors, the receiving drive circuit comprises a drive voltage output module, and the drive voltage output module comprises:
- an anode drive voltage output terminal, connected to an anode of the laser beam detector in the laser beam detection module, wherein the anode drive voltage output terminal is configured to output an anode drive voltage, the anode drive voltage is a negative voltage, and an absolute value of the negative voltage is less than an absolute value of a reverse breakdown voltage of the laser beam detector;
- and
- a cathode drive voltage output terminal, connected to a cathode of the laser beam detector in the laser beam detection module, wherein the cathode drive voltage output terminal is configured to output a cathode drive voltage, the cathode drive voltage is a positive voltage, and the positive voltage is less than the absolute value of the reverse breakdown voltage,
- wherein the anode drive voltage and the cathode drive voltage jointly form a reverse bias voltage across two terminals of the laser beam detector, and an absolute value of the reverse bias voltage is greater than an absolute value of the reverse breakdown voltage of the laser beam detector.
Dependencies are inferred from the claim text.