Abstract in Chinese:
A highly reliable power management circuit of digital signal processor (DSP) TMS320F28335 is designed. The power supply demands of the DSP were analyzed, and the required power was accounted. The 1.9 V and 3.3 V dual power supply management circuit meeting demands of power and power-on timing of the chip was designed. The circuit has the correct electrical sequence and reasonable time interval. The experimental platform verifies that the power supply circuit’s output voltage is stable, the power-on timing is good, and the power supply ripple is within a reasonable range. In conclusion, both DC character and AC specialty of the circuit show excellent performance, which can guarantee the reliable operation of the DSP.
