RESONANCE-BASED SINGLE INDUCTOR OUTPUT-DRIVEN DC-DC CONVERTER AND METHOD
First Claim
1. A resonance-based DC-DC converter for converting a DC input voltage to a first DC output voltage on a first output conductor, comprising:
- (a) an inductor having a first terminal directly coupled to a source of a DC input voltage and a second terminal coupled to a resonance conductor;
(b) a resonance capacitor having a first terminal coupled to the resonance conductor;
(c) a first switch coupled between the resonance conductor and the first output conductor, for conducting inductor current into the first output conductor during a first phase;
(d) a second switch coupled between a second terminal of the resonance capacitor and the first output conductor, for conducting inductor current through the resonance capacitor into the first output conductor during a second phase; and
(e) a third switch coupled between the second terminal of the resonance capacitor and a first reference voltage for conducting inductor current from a source of the first reference voltage through the resonance capacitor into the source of the input voltage during a third phase.
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Accused Products
Abstract
A resonance-based DC-DC converter for converting a DC input voltage to a first DC output voltage (VOUT1) on a output conductor (9) includes an inductor (L) having a first terminal connected to a source (2) of a DC input voltage (VIN) and a second terminal coupled to a first conductor (4) and a capacitor (CRES) having a first terminal coupled to the first conductor. A first switch (SW1) is coupled between the resonance conductor and the output conductor to conduct inductor current (IL) into the output conductor during a first phase (Phase1). A second switch (SW2) is coupled between a second terminal of the capacitor and the output conductor to conduct inductor current through the capacitor into the output conductor (9) during a second phase (Phase2). A third switch (SW3) is coupled between the second terminal (31) of the capacitor and a first reference voltage (GND) to conduct inductor current from a source of the first reference voltage through the capacitor to the input voltage (VIN) during a third phase (Phase3).
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Citations
21 Claims
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1. A resonance-based DC-DC converter for converting a DC input voltage to a first DC output voltage on a first output conductor, comprising:
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(a) an inductor having a first terminal directly coupled to a source of a DC input voltage and a second terminal coupled to a resonance conductor; (b) a resonance capacitor having a first terminal coupled to the resonance conductor; (c) a first switch coupled between the resonance conductor and the first output conductor, for conducting inductor current into the first output conductor during a first phase; (d) a second switch coupled between a second terminal of the resonance capacitor and the first output conductor, for conducting inductor current through the resonance capacitor into the first output conductor during a second phase; and (e) a third switch coupled between the second terminal of the resonance capacitor and a first reference voltage for conducting inductor current from a source of the first reference voltage through the resonance capacitor into the source of the input voltage during a third phase. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for converting a DC input voltage to a DC output voltage on an output conductor by means of a resonance-based DC-DC converter, the method comprising:
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(a) coupling a first terminal of an inductor directly to a source of the DC input voltage, coupling a second terminal of the inductor to a resonance conductor, and coupling a first terminal of a resonance capacitor to the resonance conductor; (b) conducting inductor current from the resonance conductor through a first switch into the output conductor during a first phase; (c) conducting inductor current through the resonance capacitor and a second switch and into the output conductor during a second phase; and (d) conducting inductor current from a source of a first reference voltage through a third switch, through the resonance capacitor, and through the inductor into the source of the input voltage during a third phase. - View Dependent Claims (17, 18, 19, 20)
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21. A circuit for converting a DC input voltage to a first DC output voltage on a first output conductor by means of a resonance-based DC-DC converter, comprising:
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(a) means for coupling a first terminal of an inductor directly to a source of the DC input voltage, means for coupling a second terminal of the inductor to a resonance conductor, and means for coupling a first terminal of a resonance capacitor to the resonance conductor; (b) means for conducting inductor current from the resonance conductor through a first switch into the first output conductor during a first phase; (c) means for conducting inductor current through the resonance capacitor and a second switch and into the first output conductor during a second phase; and (d) means for conducting inductor current from a source of the first reference voltage through a third switch, through the resonance capacitor, and through the inductor into the source of the input voltage during the third phase.
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Specification