Closed-loop efficiency modulation for use in network powered applications

摘要

Methods for reducing power dissipation from an input power source in a telecommunications system are disclosed. In one embodiment the method includes: utilizing a first I2C device to monitor an input voltage and input current to a remote unit; providing the input voltage and input current to a main microprocessor for calculating an input power; utilizing a second I2C device to monitor an output voltage and output current from the remote unit; providing the output voltage and output current to the main microprocessor for calculating an output power; calculating a power efficiency of the remote unit at the main microprocessor based on the input power and the output power; utilizing a third I2C device to provide the power efficiency of the remote unit to a digital power manager; and utilizing the digital power manager to control the DA trim output to a DC/DC converter.

主权项

1. A method for providing end-to-end power efficiency in a device connected on a telecommunications loop comprising the steps of:
(a) utilizing a first communication protocol device to monitor an input voltage and input current to a remote unit; (b) providing the input voltage and the input current to a main microprocessor for calculating an input power; (c) utilizing a second communication protocol device to monitor an output voltage and output current from the remote unit; (d) providing the output voltage and the output current to the main microprocessor for calculating an output power; (e) calculating a power efficiency of the remote unit at the main microprocessor based on the input power and the output power; (f) utilizing a third communication protocol device to provide the power efficiency of the remote unit to a digital power manager; and (g) utilizing the digital power manager to control the DAC trim output to a DC/DC converter.