| 摘要 |
PURPOSE: A voltage stabilizing circuit of a multimedia monitor is provided to solve a power instability problem caused by a shortage of driving current in the initial operation of the monitor to enable stable power supply. CONSTITUTION: A voltage stabilizing circuit of a multimedia monitor includes a rectifier(60), a main transformer(10) and an auxiliary transformer(30), a main power controller(20) and an auxiliary power controller(40), and a voltage stabilizer(50). The rectifier receives input AC voltage and rectifies the AC voltage to output DC voltage. The main transformer and auxiliary transformer receives the DC voltage and outputs DC voltage having at least one predetermined level. The main power controller and auxiliary power controller controls power of the transformers. The voltage stabilizer selectively provides power to the main power controller using the output voltage of the main transformer and auxiliary transformer as a start power supply source.
|
