Interleaved power converters incorporating bang-bang control
First Claim
Patent Images
1. A method of power conversion comprising:
- applying a first oscillator signal to a first power converter to provide a first power to an output;
applying a second oscillator signal, out of phase with respect to the first oscillator signal, to a second power converter to provide a second power to the output;
overriding the first and second oscillator signals to change the power output of both power converters to correct the output; and
removing override of the first and second oscillator signals and continuing the first and second oscillating signals from points in their cycles at which they were overridden.
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Abstract
Bang or bang-bang control is applied to interleaved power converters. With the bang control on, oscillator signals applied to the power converters are overridden in order to change the power output of both power converters. When the override is removed, both oscillating signals continue from points in their cycles at which they were overridden. An oscillator may be frozen during override by interrupting the charging and discharging of a capacitor in the oscillator.
62 Citations
15 Claims
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1. A method of power conversion comprising:
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applying a first oscillator signal to a first power converter to provide a first power to an output;
applying a second oscillator signal, out of phase with respect to the first oscillator signal, to a second power converter to provide a second power to the output;
overriding the first and second oscillator signals to change the power output of both power converters to correct the output; and
removing override of the first and second oscillator signals and continuing the first and second oscillating signals from points in their cycles at which they were overridden. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An interleaved power converter system comprising:
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a first power converter responsive to a first oscillator signal to provide a first power to an output;
a second power converter responsive to a second oscillator signal, out of phase with respect to the first oscillator signal, to provide a second power to the output; and
override circuitry which overrides the first and second oscillator signals to change the output power of both power converters to correct the output, the first and second oscillator signals continuing from points in their cycles at which they were overridden with removal of the override. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A power conversion system comprising:
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means for applying a first oscillator signal to a first power converter to provide a first power to an output;
means for applying a second oscillator signal, out of phase with respect to the first oscillator signal, to a second power converter to provide a second power to the output;
means for overriding the first and second oscillator signals to change the power output of both power converters to correct the output; and
means for removing override of the first and second oscillator signals and continuing the first and second oscillating signals from points in their cycles at which they were overridden.
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Specification