The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 09, 2010
Filed:
Dec. 31, 2007
Chun-sup Kim, San Jose, CA (US);
Chun-Sup Kim, San Jose, CA (US);
Ikanos Communications Inc., Fremont, CA (US);
Abstract
A switch for switchably coupling a signal source to a high impedance load. The switch includes a first bipolar transistor and a floating switch driver. The first bipolar transistor is configured to switchably couple the signal source to the high impedance load responsive to a driver signal applied to a base thereof. The floating switch driver has a control input and an output terminal coupled to the base of the first bi-polar transistor to supply the driver signal thereto. The driver signal comprises a limited forward current during the 'On' state of the floating switch driver and a voltage 'Voff' not less than the reverse breakdown voltage nor greater than the forward voltage drop across a base-emitter connection of the first bipolar transistor during the “Off” state of the floating switch driver.