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:
Jun. 13, 1995
Filed:
Apr. 05, 1993
Applicant:
Inventors:
David F Mietus, Phoenix, AZ (US);
Robert B Davies, Tempe, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K / ;
U.S. Cl.
CPC ...
361 91 ; 361 93 ; 361103 ; 361115 ;
Abstract
A voltage driven control die (20) for use with a power device (22) has been provided. The voltage driven control die includes an under voltage lock-out circuit (46) which inhibits drive to the power device until the input voltage exceeds a predetermined threshold voltage. Moreover, the control die includes a noise immunity enhancement circuit (56) for providing an excess reverse bias across an output SCR (58) for preventing false triggering of the output SCR. The control die also includes circuitry (40, 44) for detecting an over temperature or an over current condition within the power device.