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:
Oct. 07, 1986
Filed:
Sep. 04, 1984
Shi-Chuan Lee, Del Mar, CA (US);
Douglas W Schucker, Mesa, AZ (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
A BI-CMOS circuit is provided wherein an output terminal is coupled between an upper and lower NPN push-pull transistor. This provides high current drive capability along with no d.c. power dissipation. A P-channel device has a source and a drain connected to the collector and base, respectively, of the upper NPN transistor. An N-channel device has a source and drain connected to the base and collector, respectively, of the lower NPN transistor. The gates of the P-channel and N-channel devices are connected to an input terminal and provide a high impedance thereat. Additional N-channel devices are coupled between the bases of the upper and lower NPN transistors and a supply voltage terminal for improving the switching speed of the output signal.