150-A Flash LIDAR current regulator power supply reference design for automotive applications
Description
This flash LIDAR design supplies a 150-A/300-uS current regulated pulse to a laser diode. It operates over an input voltage range of 6 V - 36 V and provides an adjustable current level and time duration pulse. A SEPIC converter minimizes current peaks from the input voltage by using constant current regulation to charge a capacitor bank to a fixed voltage. Once charged: this supplies power to a three-phase synchronous buck converter which regulates the current through the laser diode. The laser diode can be fired at a 30-Hz rate.
Features
- Synchronous buck operates at 50A per phase (3 phases) with an available 4th phase for higher output currentOutput current pulse is sourced from capacitor bank: smoothing input current pulses and reducing EMISEPIC converter operates in constant current / constant voltage mode (CC/CV)Compact size of 50mm x 60mm minimizes PCB area
Applications
- Mechanically scanning LIDAR
Product Categories
| Application Area | End Equipment |
|---|---|
| Mechanically scanning LIDAR | http://www.ti.com/solution/automotive_lidar#referencedesigns |