Phase controller and multi-phase voltage converter using the same
First Claim
1. A phase controller for a multi-phase voltage converter, comprising:
- a plurality of logic control circuits configured to receive a plurality of phase-change signals and output a plurality of logic signals according to said plurality of phase-change signals, respectively;
a plurality of signal generators configured to provide a plurality of bridge circuits with a plurality of phase selection signals to drive said plurality of bridge circuits; and
a phase selection circuit coupled to said plurality of logic control circuits and said plurality of signal generators and configured to receive said plurality of logic signals and a voltage determination signal and control said plurality of signal generators according to said plurality of logic signals and said voltage determination signal;
wherein, when an output voltage provided by said multi-phase voltage converter is higher than a pre-determined voltage, said phase selection circuit receives said voltage determination signal at a high logic level, and said phase selection circuit controls said plurality of signal generators to output said plurality of phase selection signals to said plurality of bridge circuits according to said plurality of logic signals and said voltage determination signal such that said plurality of bridge circuits conducts a phase change;
wherein, if said voltage determination signal stays at a high logic level for a pre-determined time period, said phase selection circuit controls said plurality of signal generators to output a plurality of phase selection signals at a high logic level to said plurality of bridge circuits such that said plurality of bridge circuits provides power at the same time to rapidly increase said output voltage.
1 Assignment
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Accused Products
Abstract
Provided herein is a phase controller for a multi-phase voltage converter. The phase controller includes a plurality of logic control circuits, a phase selection circuit and a plurality of signal generators. The logic control circuits receive a plurality of phase-change signals and output a plurality of logic signals, respectively. The signal generators provide a plurality of bridge circuits with a plurality of phase selection signals to drive the bridge circuits. The phase selection circuit controls the signal generators according to the logic signals and a voltage determination signal. When the voltage determination signal stays at a high logic level for a pre-determined time period, the phase selection circuit controls the signal generators to output a plurality of phase selection signals at a high logic level to the bridge circuits such that the corresponding bridge circuits provide power at the same time.
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Citations
20 Claims
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1. A phase controller for a multi-phase voltage converter, comprising:
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a plurality of logic control circuits configured to receive a plurality of phase-change signals and output a plurality of logic signals according to said plurality of phase-change signals, respectively; a plurality of signal generators configured to provide a plurality of bridge circuits with a plurality of phase selection signals to drive said plurality of bridge circuits; and a phase selection circuit coupled to said plurality of logic control circuits and said plurality of signal generators and configured to receive said plurality of logic signals and a voltage determination signal and control said plurality of signal generators according to said plurality of logic signals and said voltage determination signal; wherein, when an output voltage provided by said multi-phase voltage converter is higher than a pre-determined voltage, said phase selection circuit receives said voltage determination signal at a high logic level, and said phase selection circuit controls said plurality of signal generators to output said plurality of phase selection signals to said plurality of bridge circuits according to said plurality of logic signals and said voltage determination signal such that said plurality of bridge circuits conducts a phase change; wherein, if said voltage determination signal stays at a high logic level for a pre-determined time period, said phase selection circuit controls said plurality of signal generators to output a plurality of phase selection signals at a high logic level to said plurality of bridge circuits such that said plurality of bridge circuits provides power at the same time to rapidly increase said output voltage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A multi-phase voltage converter, comprising:
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a plurality of bridge circuits; a central controller coupled to an output terminal of said plurality of bridge circuits and configured to generate a voltage determination signal according to an output voltage provided by said plurality of bridge circuits and generate a plurality of phase signals according to said voltage determination signal; and a phase controller coupled to said plurality of bridge circuits and said central controller, comprising; a plurality of logic control circuits configured to receive a plurality of phase-change signals and output a plurality of logic signals according to said plurality of phase-change signals, respectively; a plurality of signal generators configured to provide said plurality of bridge circuits with a plurality of phase selection signals to drive said plurality of bridge circuits; and a phase selection circuit coupled to said plurality of logic control circuits and said plurality of signal generators and configured to receive said plurality of logic signals and said voltage determination signal and control said plurality of signal generators according to said plurality of logic signals and said voltage determination signal; wherein, when an output voltage provided by said multi-phase voltage converter is higher than a pre-determined voltage, said phase selection circuit receives said voltage determination signal at a high logic level, and said phase selection circuit controls said plurality of signal generators to output said plurality of phase selection signals to said plurality of bridge circuits according to said plurality of logic signals and said voltage determination signal such that said plurality of bridge circuits conduct a phase change; wherein, if said voltage determination signal stays at a high logic level for a pre-determined time period, said phase selection circuit controls said plurality of signal generators to output a plurality of phase selection signals a high logic level to said plurality of bridge circuits such that said plurality of bridge circuits provide power at the same time to rapidly increase said output voltage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification