| 摘要 |
The LED tube lamp includes a lamp tube configured to receive an external driving signal; a rectifying circuit configured to rectify the external driving signal to produce a rectified signal; a filtering circuit coupled to the rectifying circuit, and configured to filter the rectified signal to produce a filtered signal, wherein the filtering circuit has a first filtering output terminal and a second filtering output terminal; an LED lighting module coupled to the filtering circuit, wherein the LED lighting module includes a driving circuit having a first driving output terminal and a second driving output terminal and configured to receive the filtered signal to produce a driving signal, and an LED module configured to receive the driving signal and emit light; and a mode switching circuit coupled to at least one of the first and the second filtering output terminal and at least one of the first and the second driving output terminal, and configured to determine to perform one of a first driving mode and a second driving mode. |
| 主权项 |
1. A light-emitting diode (LED) tube lamp having different modes for operating under different types of power sources, comprising:
a lamp tube, configured to receive an external driving signal; a rectifying circuit, configured to rectify the external driving signal to produce a rectified signal; a filtering circuit, coupled to the rectifying circuit, and configured to filter the rectified signal to produce a filtered signal; a driving circuit, configured to produce a driving signal based on the filtered signal; a mode switching circuit, coupled to the filtering circuit and the driving circuit, and being controlled to determine whether to provide a bypass signal path that allows the filtered signal to bypass at least one electronic component of the driving circuit; and an LED module, coupled to the driving circuit and the mode switching circuit, and configured to emit light based on the signal received from one of the driving circuit and the bypass signal path. |
