Accession Number:

AD0652423

Title:

A CLASS 'A' D. C. COUPLED POWER AMPLIFIER.

Descriptive Note:

Technical rept.,

Corporate Author:

ROYAL AIRCRAFT ESTABLISHMENT FARNBOROUGH (ENGLAND)

Personal Author(s):

• Taylor,G. A.
• Skingle,C. W.

Report Date:

1966-07-01

Pagination or Media Count:

42.0

Abstract:

An amplifier which is suitable for current-driving electromagnetic vibration generators of the type used in the resonance testing of aircraft is described. The amplifier has an output impedance of 5000 ohms and can typically supply a load of 3 ohm with a current of plus or minus 4 amps while introducing less than 1 degree phase-shift between the input voltage and output current over the frequency range D.C. to 2 kcs. To achieve the high output impedance and response to D.C., directly coupled transistors have been used in a current negative-feedback circuit. Author

Descriptors:

• *POWER AMPLIFIERS
• DIRECT CURRENT
• UNITED KINGDOM
• COUPLING CIRCUITS
• TRANSISTORS
• FEEDBACK
• ELECTRICAL IMPEDANCE
• GAIN
• VIBRATORS(ELECTRICAL)

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE