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1.使用电视机怎样省电?答:(1)电视机屏幕选择要适当,22英寸彩电比14英寸彩电多耗电1倍以上,因此,从节能观点家庭以14英寸～18英寸为好。(2)电视机不看时应拔出电源插头。(3)如不看某段节目,可调小音量和亮度。2.采用开关电源的电视机省电吗?答:省电。因为一般电视机采用串联式稳压电源,电路中有一个调整管,当整流电压升高或整机耗电小时,它的电阻变大,电压降就大,一部分电能变成热量耗散掉了。采用开关电源
1. How to use the TV to save electricity? A: (1) TV screen selection is appropriate, 22-inch color TV than 14-inch color TV more than doubled power consumption, therefore, from the energy point of view the family to 14 inches to 18 inches as well. (2) The TV should not pull out the power plug. (3) If you do not see a certain program, adjustable volume and brightness. 2 switching power supply TV save power? A: power. Because the general TV series power supply, the circuit has an adjustment tube, when the rectifier voltage increases or the whole power consumption is small, its resistance becomes larger, the voltage drop is large, part of the power into heat dissipated . Using switching power supply