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电源是放大器的总能量“供应处”。电源的优与劣,对放大器的输出功率P_0、噪声N、动态、定位、压摆率、失真度等指标,均有着至关重要的影响。在当今的“发烧潮”中,电子管放大器款款优质电源亦相继而生,但经过认真端倪之后,发现个中也不乏有不尽人意之处。下面,仅以一款“纯胆优质放大器”为“线”,谈一谈胆机电源的设计细节问题,仅供参考。 首先,将原机电路“照猫画虎”绘于图1。观其电源亦有特点:简洁实用、布局合理。但是,仍有“诸点”倘需改进和打“摩”。
The power supply is the total energy “supply” of the amplifier. The advantages and disadvantages of the power supply, the amplifier output power P_0, noise N, dynamic, positioning, slew rate, distortion and other indicators, have a crucial impact. In today’s “boom of fever,” electronic tube amplifier models have also emerged in high-quality power supply, but after careful clues, we found there are also some unsatisfactory. The following, only to a “pure guts quality amplifier” for the “line”, talk about the power amplifier design details, for reference purposes only. First, the original circuit “cat cat tiger” painted in Figure 1. View of its power also has features: simple and practical, reasonable layout. However, there are still “points” to improve and fight.