808nm High-Power Semiconductor Laser Therapeutic Apparatus Based on LPC2138

In this paper, we designed an intelligent 808nm high-power semiconductor laser therapeutic apparatus with the LPC2138 ARM processor. The laser is driven by the digital constant current source module, and the apparatus has good human-machine interaction performance on account of set the parameters intelligently. The function such as operation mode, output power, output pulse width and pulse cycle could be easily set through the TFT touch screen. The application software could transmission the log data to the computer by the USB interface in order to check and study the records later.