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:
Apr. 19, 2022
Filed:
Dec. 12, 2019
Signify Holding B.v., Eindhoven, NL;
Bernhard Christiaan Van Dijk, Geldrop, NL;
Paul Robert Veldman, Oss, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
A circuit is for generating a DC voltage supply from a higher voltage AC signal. A first capacitor (C) is in series between an input () and a first node (N), a first diode (D) is in forward direction between the first node and a DC voltage supply node (Nout), a second capacitor (C) is between the DC voltage supply node and a reference terminal, and a second diode (D) is in forward direction between the reference terminal and the first node. This defines a general charge pump architecture. A third capacitor (C) is then provided between the first node and a second node (N) and a controllable voltage supply () defines the voltage at the second node (N). This adjustable node voltage improves the efficiency of the circuit, in that excess current can be dissipated efficiently, and it can be implemented with a simple circuit.