Power delivery device, AC adapter, and electronic apparatus each having variable function of output power

摘要

The PD device comprises a primary-side controller configured to control an input current of a DC/DC converter disposed between an input and an output, and a secondary-side controller connected with AC coupling to the output, and configured to feed back electric power information of the output to the primary-side controller. The primary-side controller varies an output voltage value and an available output current capacity of the DC/DC converter by controlling the input current on the basis of the electric power information fed back from the secondary-side controller. The primary-side controller can change an overpower detecting set value in accordance with the target equipments connected to the output, thereby executing the power change of the DC/DC converter.

主权项

1. A power delivery device comprising:
a DC/DC converter disposed between an input and an output; a primary-side controller configured to control an input current of the DC/DC converter; and a secondary-side controller connected with AC coupling to the output, the secondary-side controller configured to feed back electric power information of the output to the primary-side controller, wherein the primary-side controller varies an output voltage value and an available output current capacity of the DC/DC converter by controlling the input current on the basis of the electric power information fed back from the secondary-side controller, wherein the electric power information of the output is transmitted to the secondary-side overpower protecting circuit from the secondary-side controller in accordance with target equipment connected to the output, the secondary-side overpower protecting circuit feeds back the electric power information to the primary-side controller through the primary-side overpower protecting circuit, and the primary-side controller can change an overpower detecting set value in accordance with the target equipment, thereby changing output power of the DC/DC converter.