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. 11, 2013
Filed:
Sep. 30, 2009
Geoffrey N. Drummond, Ft. Collins, CO (US);
Bryce L. Hesterman, Ft. Collins, CO (US);
Geoffrey N. Drummond, Ft. Collins, CO (US);
Bryce L. Hesterman, Ft. Collins, CO (US);
Colorado Power Electronics, Inc., Fort Collins, CO (US);
Abstract
A power supply provides dc power over a wide range of output voltages at full operating power by utilizing multiplying circuits () supplied by a source of high-frequency alternating current (). The multiplier circuits include a plurality of multiplier cells containing at least two diodes () and a driving capacitor (). The multiplier cells are shunted by bypass rectifiers () arranged such that currents are allowed to flow from multiplier input terminals to power supply output terminals. The bypass rectifiers do not conduct current for low output current levels, but conduct increasing levels of current when output currents increase beyond a conduction threshold value, thereby increasing the maximum available output current. Interactions among the diodes and capacitors in the multiplier circuits cause the amplitudes of the multiplier input currents to remain relatively constant as the output voltage is varied while operating at full power.