论文部分内容阅读
一、稳定电源的输出功率电源的输出功率 P_出=UI,U 是电源的端电压,I是外电路的总电流。当电源的电动势ε、内阻 r 确定时,阻值为 R 的负载电阻连接到电源两端,U 和 I 都与 R值有关,使电源的输出功率即 R 消耗的功率变化较复杂,值得注意。R 值大时 U 大 I 小,R 值小时 U 小 I 大,这表明 P_出随 R 的增大不是简单的增大或减小,需要
First, the output power of the stabilized power supply The output power of the power supply P_out=UI, U is the terminal voltage of the power supply, I is the total current of the external circuit. When the emf of the power source and the internal resistance r are determined, the load resistance with the resistance value R is connected to both ends of the power supply. Both U and I are related to the R value, making the power output power, that is, the power consumption of R consumed, more complex and worth noting. . When R is large, U is large, I is small, R is small, U is small, and I is large. This indicates that the increase of P_ with R is not a simple increase or decrease.