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:
Jan. 15, 2008
Filed:
Jul. 19, 2002
Mauro Fagnani, Nerviano, IT;
Albino Pidutti, Udine, IT;
Claudio Adragna, Monza, IT;
STMicroelectronics S.r.l., Agrate Brianza (MI), IT;
Abstract
A bootstrap circuit for switching power supplies (SMPS), a switching power supply including a bootstrap circuit, and an integrated circuit of a switching power supply, are provided. The bootstrap circuit () for switching power supplies includes a first supply voltage (Vin) coming from a first terminal and a second supply voltage (Vcc) coming from a second terminal and a third terminal (). The bootstrap circuit includes: a first current path between the first terminal and the third terminal (); a second current path between the first terminal and the second terminal; a third current path between the second terminal and the third terminal (); and a two-way voltage regulator (M, Dz, R, R) placed along the second current path.