| 释义 |
- Implementations
{{mi|{{Orphan|date=February 2013}}{{unreferenced|date=May 2018}}
}}An OCL amplifier (output capacitor-less amplifier) is any audio amplifier with direct-coupled capacitorless output. Typically, OCL amplifiers can be any of several amplifier classes, and typically have a push-pull output stage. Advantages of OCL amplifiers over capacitor-coupled amplifiers include - Avoiding the cost and bulk of an output capacitor
- better immunity to motorboat oscillation
- larger output power at very low frequencies and DC
Disadvantages of OCL amplifiers include - larger power dissipation and passing DC through the load, in the minority of designs with poorly controlled DC bias point
- increased sensitivity of the output DC bias point to process variations, although the last disadvantage is less important for older bipolar processes.
Implementations - LM4910 by National Semiconductor
- Lab tutorial on OCL amplifier from Hong Kong Polytechnic University
{{Electronics-stub}}Wzmacniacz (muzyka) 1 : Audio amplifiers |