论文部分内容阅读
目前半导体直流稳压器已普遍应用,其中和负载并联或串联着的三极管是可调电阻。大家知道,线性稳压器能保证输出电压有精确度足够高的稳定性,可是线性稳定器的致命弱点是调节三极管上的功率损耗很大,因而效率低,特别是在电源电压变化范围相当宽或者输出端电压的应有值此最低输入电压小得多的时候,损耗更大。如利用工作在开关状态下的半导体三极管
The current semiconductor DC voltage regulator has been widely used, which load parallel or in series with the transistor is adjustable resistance. As we all know, the linear regulator can guarantee the stability of the output voltage with high accuracy, but the fatal weakness of the linear stabilizer transistor power loss is very large, and therefore inefficient, especially in the power supply voltage range is quite wide Or the proper value of the output voltage The loss is greater when the minimum input voltage is much smaller. Such as the use of the switch in the state of the semiconductor transistor