| 摘要 |
A power supply system of a smart device (1), the power supply system comprising: a power distribution device (2), an electrical connection trace (3), and a switch device (5), and further comprising: a high-frequency signal generation apparatus (4) and a first low-pass filtering apparatus (6); the high-frequency signal generation apparatus (4) is located between the power distribution device (2) and the switch device (5), and two ends thereof are electrically connected respectively to a first trace (31) and a second trace (32) for generating a high-frequency signal; the first low-pass filtering apparatus (6) is located between the high-frequency signal generation apparatus (4) and the smart device (1), is connected to the switch device (5) in parallel, and is used for filtering the high-frequency signal on a path from the first trace (31) to the smart device (1) when the switch device (5) is turned off. By adding the high-frequency signal generation apparatus (4) between the first trace (31) and the second trace (32) and connecting the low-pass filtering apparatus (6) to the switch device (5) in parallel, the power supply system enables a control module (11) of the smart device (1) to control a non-smart module (12) according to the high-frequency signal in a simple and easy manner and has a lower cost. |
