Lighting apparatus and controlling method thereof
AssigneeWelland Industrial Co., Ltd.
InventorsKun-Nan Tsai, Fu-Tien Lee
Life of this patent
Estimating the term…
Abstract
A lighting apparatus includes a first lighting module, a second lighting module, a rectifier, and a controller. The rectifier is used to rectify the AC power into an input power. The controller is coupled to the rectifier, the first lighting module, and the second lighting module for receiving the input power. When the input power is less than a reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a first connection state. When the input power is greater than the reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a second connection state. Also, a controlling method of the lighting apparatus is disclosed.
Claims18
A lighting apparatus of receiving alternating current (AC), comprising:
- a first lighting module;
- a second lighting module;
- a rectifier for converting the AC into an input power;
- and
- a controller coupled to the rectifier, the first lighting module, and the second lighting module, the controller being configured to receive the input power, when the input power being less than a reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a first connection state, when the input power being greater than the reference value, the controller controls the first lighting module, the second lighting module, and the rectifier to form a second connection state.
A controlling method of the lighting apparatus, for using by a controller to control a first lighting module and a second lighting module, comprising the steps of:
- obtaining an input power, wherein the input power is of rectified alternating current (AC);
- controlling the first lighting module, the second lighting module, and the input power to form a first connection state, when the input power is less than a reference value;
- and
- controlling the first lighting module, the second lighting module, and the input power to form a second connection state, when the input power is greater than the reference value.
A controlling method of the lighting apparatus, for using by a controller to control a plurality of lighting modules, comprising the steps of:
- obtaining an input power, wherein the input power is of rectified alternating current (AC);
- controlling the plurality of lighting modules to form a first connection state, when the input power is less than a first reference value;
- controlling the plurality of lighting modules to form a second connection state, when the input power is greater than the first reference value but less than a second reference value;
- and
- controlling the plurality of lighting modules to form a third connection state, when the input power is greater than the second reference value.
Dependencies are inferred from the claim text.