Christopher David Macchietto

US Patent:

20070115600, May 24, 2007

Filed:

Nov 22, 2005

Appl. No.:

11/285634

Inventors:

Mitchel Lohr - Windsor CO, US
Christopher Macchietto - Fort Collins CO, US

International Classification:

H02H 3/22

US Classification:

361111000

Abstract:

Apparatus and methods for protecting an electronic application circuit from electrical over-stress (EOS) conditions both while the application circuit is powered on and while the application circuit is powered off. In one aspect apparatus is provided that integrates with the application circuit that utilizes an existing clamp circuit to guard against EOS conditions while the application circuit is powered off and while the application circuit is powered on. The apparatus may include a clamp circuit for EOS protection while the application circuit is powered on and may include a band-gap reference voltage source coupled to activate the clamp circuit when the application circuit is powered on.

US Patent:

20180076768, Mar 15, 2018

Filed:

Sep 15, 2016

Appl. No.:

15/266975

Inventors:

- Singapore, SG
Christopher D. Macchietto - Fort Collins CO, US
Richard Niescier - Bethlehem PA, US

International Classification:

H03B 5/32
H03G 3/20

Abstract:

At least one example embodiment provides a controller to sample a first signal. The first signal indicates an initial amplitude of an output signal of an oscillator circuit. The controller selects a step amount based on the first signal and a target amplitude of the output signal. The controller generates a control signal for the oscillator circuit based on the selected step amount. The control signal indicates a change in gain for the oscillator circuit according to the selected step amount.