ENERGY EFFICIENCY CONTROL METHOD, CONTROL APPARATUS, AND COMMUNICATIONS DEVICE

An energy efficiency control method, where the method is applied to a communications device; the communications device comprises a primary power supply, a secondary power supply, and a control apparatus; and the method includes: obtaining a current load rate of the primary power supply and a load power of the secondary power supply; determining, based on the current load rate of the primary power supply and the load power of the secondary power supply, a target output voltage of the primary power supply and a target input voltage of the secondary power supply that satisfy an energy efficiency requirement of the communications device, where energy efficiency of the communications device is related to the energy efficiency of the primary power supply and the energy efficiency of the secondary power supply; and controlling the primary power supply to output the target output voltage, and controlling an input voltage of the secondary power supply to be the target input voltage.