Patent ID: 7656097
Filing Date: 2010-02-02
Classification: H05B,Y02B

Abstract:
1. A constant power type magnetic ballast control system for a HID lamp, the system comprising: a management system module for outputting HID lamp control signals on the basis of Zigbee communications; a wireless control module for controlling the HID lamp by bi-directionally communicating with the management system module, wherein the wireless control module includes a Zigbee wireless module for transmitting and receiving control signals to and from the management system module through bi-directional communications; an application board provided with one or more sensors for detecting a HID lamp state; an electronic switch unit for controlling power applied to the HID lamp according to the signals outputted from the Zigbee wireless module and the application board; and a power supply unit for supplying power to the Zigbee wireless module, the application board, and the electronic switch unit; and a constant power type magnetic ballast unit provided with a plurality of power factor improving condensers of different capacities to be selected by the wireless control module, for stably supplying power wherein the constant power type magnetic ballast unit controls illumination of the HID lamp according to the combination of power factor improving condensers of different capacities; wherein the capacities of the plurality of condensors can be adjusted by the electronic switch unit, and the electronic switch unit is arranged to control illumination of the HID lamp by adjusting the capacities of the condensors to control power factor so that the illumination can be adjusted according to the number of condensers.