Log amplifier with pole-zero compensation

Patent · Fri Feb 08 00:00:00 EST 1985

OSTI ID:5271248

Brookshier, W

A logarithmic amplifier circuit provides pole-zero compensation for improved stability and response time over 6-8 decades of input signal frequency. The amplifer circuit includes a first operational amplifier with a first feedback loop which includes a second, inverting operational amplifier in a second feedstock loop. The compensated output signal is provided by the second operational amplifier with the log elements, i.e., resistors, and the compensating capacitors in each of the feedback loops having equal values so that each break point is offset by a compensating break point or zero.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL (United States)
• DOE Contract Number: W-31-109-ENG-38
• Assignee: Dept. of Energy
• Application Number: ON: DE85017796
• OSTI ID: 5271248
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
AMPLIFIERS
DESIGN
CAPACITORS
ELECTRONIC CIRCUITS
RESISTORS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
EQUIPMENT
420800* - Engineering- Electronic Circuits & Devices- (-1989)