Patent Number: 6,683,498

Title: Protection circuit for extending headroom with off-chip inductors

Abstract: A protection circuit for extending the dynamic range of an amplifier circuit is described. Off-chip impedances, such as inductors, cause the output of the circuit to swing above and below the bias voltage. A protection circuit is included, either on-chip or off-chip, to protect the integrated circuit components if there is a fault condition in either of the off-chip impedances.

Inventors: Burns; Lawrence M. (Laguna Hills, CA), Dauphinee; Leonard (Irvine, CA)

Assignee: Broadcom Corporation

International Classification: G05F 3/24 (20060101); G05F 3/08 (20060101); H03G 3/00 (20060101); H03G 3/30 (20060101); H03F 003/45 ()

Expiration Date: 01/27/2021