Patent Number: 6,166,921

Title: Semiconductor device including an integrated circuit for realizing a DC voltage converter

Abstract: An integrated circuit includes a converter for converting a first DC voltage from a DC voltage source to an AC signal. The converter include an inductor and a transistor. The inductor and an intrinsic capacitance of the transistor provide an oscillating circuit without a need for a transformer. The integrated circuit also includes a rectifier for rectifying the AC signal to form a second DC voltage which has a sign opposite to the sign of the first DC voltage.

Inventors: Rudelle; Marie-Irene (Caen, FR), Jean; Patrick (Vaux sur Seulles, FR)

Assignee: U.S. Philips Corporation

International Classification: H02M 3/156 (20060101); H02M 3/07 (20060101); H02M 3/158 (20060101); H02M 3/04 (20060101); H02M 003/335 (); G05F 001/40 ()

Expiration Date: 12/26/2017