High power dimmer and dimming system having switchable power modes, dimming device and method for transmitting power and dimming commands

摘要

A dimming system is composed of a dimmer (1) having switchable power modes and at least one lighting device (2). When the dimmer (1) is in a non-dimming bypass mode, an input power is directly transmitted to the at least one lighting device (2) with the dimmer (1) being bypassed so that the circuit in the dimmer (1) consumes no power. When the dimmer (1) is in a dimming mode, an output selector (15) of the dimmer (1) outputs a dimming output power having a dimming command therein to each one of the at least one lighting device (2) to decode the dimming command embedded in the dimming output power and perform a dimming operation according to the dimming command. As the dimming operation lasts briefly, the dimmer (1) hardly generates heat for little power consumed and is applicable to various high power lighting devices.