Daryl Wayne Roberts

US Patent:

6448838, Sep 10, 2002

Filed:

Mar 16, 2001

Appl. No.:

09/808829

Inventors:

Barry B. Heim - Mesa AZ
Daryl G. Roberts - Chandler AZ

Assignee:

Semiconductor Components Industries LLC - Phoenix AZ

International Classification:

H03K 1700

US Classification:

327365, 327392, 327375

Abstract:

In a switching circuit, a first electrical element ( ) is disabled before a second electrical element ( ) is enabled. The switching operation is called break before make and ensures that disabling operation of a first electrical element occurs before enabling operation of a second electrical element. The assurance is in the form of a disable signal being detected from a first electrical element at an input of a first detection circuit ( ). Correspondingly, the detected disable signal of the first electrical element enables operation of the second electrical element. Alternatively, a detected disable from the second electrical element at the input of the second detection circuit ( ) enables operation of the first electrical element.