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十一、自举升压式开关电源的原理与检修自举升压式开关电源是一种特殊的他激式开关电源。为了使初学者全面了解他激式开关电源的类型和工作过程,下面以汤姆逊彩电二次电源为例,介绍自举升压式开关电源的工作原理与检修方法。 1.电路工作原理汤姆逊TH-4R100机芯彩电中的二次电源是一个并联型他激式开关稳压电源。电路结构如图15所
Eleven, the principle of bootstrapped switching power supply and maintenance Bootstrapped switching power supply is a special kind of his exciting switching power supply. In order to enable beginners to fully understand the type and working process of his excitation switch power supply, the following uses the secondary power supply of Thomson TV as an example to introduce the working principle and maintenance method of the bootstrap boost switching power supply. 1. The circuit works Thomson TH-4R100 movement secondary power in color TV is a parallel type of his active-mode switching power supply. Circuit structure shown in Figure 15