US 2025/0167516 A1 · RAPID RECHARGE LASER DRIVER CIRCUIT

Abstract

Devices, systems, and methods are provided for rapid laser recharging. A pulse emitting device may include an emitter to emit pulses, a first capacitor to provide pulses to the emitter, a second capacitor to charge the first capacitor, a first gate and a second gate to control the flow of current to the capacitors and the emitter, and a power supply configured to supply energy associated with the pulses. When the first gate is open, the first capacitor charges a first pulse of the pulses. When the first gate closes, the emitter emits the first pulse. When the first gate opens, the second gate closes and the second capacitor charges the first capacitor with a second pulse of the pulses. When the second gate opens after the second capacitor charges the first capacitor with the second pulse, the first gate closes and the emitter emits the second pulse.

Claims18

Dependent claims

A light detection and ranging (LIDAR) pulse emitting device, comprising:

an emitter configured to emit pulses;
a first capacitor configured to provide energy to the emitter to create the pulses;
a second capacitor configured to charge the first capacitor;
a first gate configured to control in part a first discharge of the energy from the first capacitor through the emitter;
a second gate configured to control in part a second discharge of the energy from the second capacitor;
a power supply configured to supply the energy associated with the pulses;
an additional power source configured to recharge the first capacitor;
a third capacitor connected in parallel to the additional power source and continuously charged by the additional power source;
and
a third gate having one end connected to one end of the additional power source and one end of the third capacitor, and the other end connected to one end of the second capacitor and one end of the second gate.

7 more elements

A light detection and ranging (LIDAR) pulse emitting system associated with a vehicle, the pulse emitting system comprising:

an emitter configured to emit pulses;
a first capacitor configured to provide energy to the emitter to create the pulses;
a second capacitor configured to charge the first capacitor, the second capacitor connected in parallel to the first capacitor;
a first gate configured to control in part a first discharge of the energy from the first capacitor through the emitter;
a second gate configured to control in part a second discharge of the energy from the second capacitor;
a power supply configured to supply the energy associated with the pulses;
an additional power source configured to recharge the first capacitor;
a third capacitor connected in parallel to the additional power source and continuously charged by the additional power source;
and
a third gate having one end connected to one end of the additional power source and one end of the third capacitor, and the other end connected to one end of the second capacitor and one end of the second gate.

7 more elements

Dependencies are inferred from the claim text.

Rapid recharge laser driver circuit

Life of this patent

Rapid recharge laser driver circuit

Life of this patent

Abstract

Claims18