Radio with a switched mode power supply

摘要

A radio including a switched mode power supply configured to shift its operating frequency to a frequency which alleviates electromagnetic interference with a radio frequency to which the radio is or will be tuned.

主权项

1. A radio receiver for use in receiving radio signal frequencies in the public broadcasting standard spectrum, the radio receiver including:
a switched mode power supply; a user input interface via which a user is able to select a radio signal frequency bandwidth to which the radio receiver is to be tuned; and a controller configured to, in response to the radio signal frequency bandwidth selected via the user input interface, shift an operating frequency of the switched mode power supply to a predetermined operating frequency before the radio receiver is tuned to the selected radio signal frequency bandwidth, whereby the predetermined operating frequency of the switched mode power supply is configured to alleviate electromagnetic interference arising with the selected radio signal frequency bandwidth to which the radio receiver is to be tuned.