| 摘要 |
PROBLEM TO BE SOLVED: To provide a lamp control system capable of simultaneously satisfying requirements for low-intensity illumination of a liquid crystal display panel and consumption energy saving of a lamp. SOLUTION: The lamp control system includes a control circuit, a power source conversion circuit, a resonant transformer circuit and a switch module. The control circuit receives a set of switch signals, and outputs a control signal on the basis of the receipt of the switch signals. The power source conversion circuit is connected with the control circuit, and outputs an AC signal on the basis of the control circuit and the control signal from the switch module. The resonant transformer circuit is connected with the power source conversion circuit, and outputs at least two sets of electric signals on the basis of the AC signal, and drives the lamp. The switch module is connected with the power source conversion circuit, and controls output of the AC signal from the power source conversion circuit to the resonant transformer circuit on the basis of the other one set of the switch signal. Thus, electric signal output of the resonant transformer circuit to a plurality of lamps are controlled. COPYRIGHT: (C)2010,JPO&INPIT |
