Discussion
What does class AB trade against class B?
Answer: A
Biasing the devices into slight conduction costs a small standing current and a few per cent of efficiency, and removes the crossover step that dominates class B's distortion at low levels. The trade runs the other way from the second option. Bandwidth and output impedance are unaffected. A class defined by a conduction angle just over half a cycle exists purely to take that trade, which is why it is the standard choice for audio. Checking the units of each quantity catches a wrong formula before the arithmetic begins.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development