例句與造句

1. In the 1970s and 1980s, most PAs employed heavy Class AB amplifiers.
2. For example, class AB amplifiers are around 25 or 50 % efficiency while Class D amps are much higher; around 80 % or more efficiency.
3. Modern Class AB amplifiers commonly have peak efficiencies between 30 55 % in audio systems and 50-70 % in radio frequency systems with a theoretical maximum of 78.5 %.
4. This means that a Sziklai output stage in a class AB amplifier, reducing the need for emitter resistors, significantly reducing the number of components which must be in thermal contact with the heatsink and reducing the likelihood to thermal runaway.
5. It's difficult to find class ab amplifiers in a sentence. 用class ab amplifiers造句挺難的