Amplifier circuit having integral means for detecting and preven

Amplifiers – Combined with automatic amplifier disabling switch means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

330 9, 330 30D, 330207P, H03F 114

Patent

active

040064280

ABSTRACT:
An amplifier circuit including provision for detecting non-linear circuit operation caused by the application of input signals that exceed either the amplifier dynamic range or the amplifier slewing capability is disclosed. The amplifier circuit includes the cascaded combination of a voltage amplifier stage, a voltage-to-current converter stage, a current limiter stage and an output stage. A first signal, obtained at the junction between a capacitor and resistor that are series connected between the signal common or ground potential and the input terminal to the output stage, is compared with a second signal obtained at the input terminal of the voltage to current converter stage. When the amplifier circuit is operating within the linear region these two signals are of equal magnitude or exhibit some other known relationship to one another. If, however, the amplifier operation is non-linear, due to either the application of an input signal of an amplitude that exceeds the linear dynamic range of the amplifier or due to an applied input signal having a time rate of change that exceeds the amplifier slew rate capability, a detectable increase in the voltage difference between the first and second signals occurs. This detected signal can be utilized for a number of functions including either disconnecting the improper input signal from the amplifier input terminals or conditioning the signal such that it lies within the linear operating range of the amplifier.

REFERENCES:
patent: 3678402 (1972-07-01), Tempel
patent: 3891933 (1975-06-01), Suzuki et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Amplifier circuit having integral means for detecting and preven does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Amplifier circuit having integral means for detecting and preven, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Amplifier circuit having integral means for detecting and preven will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1093674

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.