Motional load driver

Details Motional load driver Motional load driver

1988-09-26

1990-03-13

Isen, Forester W.

Electrical audio signal processing systems and devices

Loudspeaker feedback

381 59, H04R 300

Patent

active

049088700

ABSTRACT:
A motional load driver for driving a motional load having a motional impedance includes an amplifying section for amplifying an input signal and supplying the input signal to a motional load such as a loudspeaker, a current detecting section for generating an output signal corresponding to a current flowing through the motional load, and a load impedance cancellation current generating section for generating a current corresponding to a magnitude of the output signal generated by the current detecting section and positively feeding back the current to the amplifying section. The current detecting section includes, for example, an impedance element such as a resistor series-connected to the motional load. A voltage between both the terminals of the resistor is converted into a current by a voltage/current converter arranged in the impedance cancelation current generating section, and the current is fed back to the amplifying section. With this arrangement, the motional load can be driven without being influenced by a potential difference between the input and output ground points of the amplifying section.

REFERENCES:
patent: 4118600 (1978-10-01), Stahl
patent: 4797933 (1989-01-01), Hahne
"Synthesis of Loudspeaker Mechanical Parameters by Electrical Means: A New Method for Controlling Low-Frequency Loudspeaker Behavior", 29 J. Audio Eng. Soc. 587, (1981).

Affiliated with

Also associated with

Rating

Motional load driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motional load driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motional load driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-56354