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. 28, 2003
Filed:
Apr. 19, 2001
Hendrik Boezen, Nijmegen, NL;
Aloysius Johannes Maria Boomkamp, Nijmegen, NL;
Martinus Bredius, Santa Clara, CA (US);
Peter Buehring, Hamburg, DE;
Patrick Willem Hubert Heuts, Nijmegen, NL;
Abraham Klaas Van Den Heuvel, Nijmegen, NL;
Egon Joehnk, Norderstedt, DE;
Maarten Teunis Visser, Nijmegen, NL;
Ruurd Anne Visser, Nijmegen, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A fault tolerant air bag system needs a floating supply, which supply conventionally is made by means of a DC-DC converter with a transformer. By splitting the main energy reserve capacitor ( ) into two capacitors ( ), and coupling one of the capacitors ( ) to the other ( ) by means of switches ( ) which open during a crash, no transformer is needed any more.