Company Filing History:
5 out of 25,850 
1 out of 833,002 Years Active: 2001-2006
Title: Walter Haley: Innovator in Amplifier Technology
Introduction
Walter Haley is a notable inventor based in Escondido, California. He holds a total of 6 patents that showcase his contributions to the field of amplifier technology. His innovative designs have significantly impacted the performance and stability of linear amplifiers.
Latest Patents
One of his latest patents is the Dual Feedback Linear Amplifier. This invention employs a dual feedback topology that enhances the stability of multistage linear amplifiers, particularly at higher signal frequencies. By closing an inner feedback loop around the first amplifier stage, configured as a current feedback amplifier, and a second loop around the overall multistage amplifier, the design improves the overall amplifier phase margin. The frequency responses of both feedback loops can be tailored for a flat frequency response or adjusted to compensate for variations.
Another significant patent is the Wideband Error Amplifier. This circuit reduces distortion in amplified signals by reflecting a feedback signal into the amplified output using an output transformer. The design includes a first amplifier that generates a reference signal corresponding to the input signal. An error sense element creates an error signal based on the difference between the reference and amplified signals, ensuring high common-mode rejection. A second amplifier then amplifies the error signal, and the output transformer generates a compensated amplified signal.
Career Highlights
Walter Haley has worked with Telefonaktiebolaget Lm Ericsson, where he applied his expertise in amplifier technology. His work has contributed to advancements in the field, particularly in enhancing the performance of communication systems.
Collaborations
Throughout his career, Walter has collaborated with notable individuals such as Lennart Karl Mathe and Donald Kimball. These collaborations have further enriched his work and innovations in amplifier technology.
Conclusion
Walter Haley's contributions to amplifier technology through his patents and collaborations highlight his role as an influential inventor. His work continues to inspire advancements in the field of electronics and communication systems.