Low voltage, high current dc computer power system
AssigneeAdvanced Energy Industries, Inc.
InventorsAnatoli V. Ledenev, Robert M. Porter, Gennady G. Gurov
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Abstract
Methods and circuitry for combining the outputs of multiphase power converters which greatly improves the transient response of the power conversion system are presented in a variety of embodiments. Transformers may be used to accomplish the combining function, and with properly phased and connected windings it is possible to achieve a great reduction in output ripple current and a simultaneous reduction in transistor ripple current, which give the designer freedom to reduce the value of the system output inductor, improving transient response.
Claims119
A method of powering a programmable processor comprising the steps of:
- a. accepting at least a first buck converter power input;
- b. affecting said first buck converter power input with at least one high effective input inductance;
- c. creating a first directional effect in a passive electrical element from said first buck converter input;
- d. accepting at least a second buck converter power input;
- e. affecting said second buck converter power input with at least one high effective input inductance;
- f. creating a second directional effect in said passive electrical element from said second buck converter power input wherein said second directional effect opposes said first directional effect;
- g. combining said at least two affected power inputs to create a combined power signal;
- h. creating a low effective output inductance power output from said combined power signal;
- i. establishing a high current, low voltage power output from said low effective output inductance power output;
- j. providing said high current, low voltage power output to a programmable processor;
- and
- k. at least partially powering said programmable processor by said high current, low voltage power output.
A method of powering a programmable processor comprising the steps of:
- a. accepting at least two power inputs;
- b. affecting said at least two power inputs with at least one high effective input inductance;
- c. combining said at least two affected power inputs to create a combined power signal;
- d. creating a low effective output inductance power output affecting said combined power signal wherein said high effective input inductance is greater than said low effective output inductance;
- e. establishing a high current, low voltage power output affecting said low effective output inductance power output;
- f. providing said high current, low voltage power output to said programmable processor at a voltage of less than about 2V and at a maximum current of greater than about 20 amps;
- and
- g. at least partially powering said programmable processor by said high current, low voltage power output.
A method of powering a programmable processor comprising the steps of:
- a. accepting at least a first power input;
- b. creating a first directional effect in a passive electrical element from said first power input;
- c. accepting at least a second power input;
- d. creating a second directional effect in said passive electrical element from said second power input wherein said second directional effect opposes said first directional effect;
- e. combining said at least two power inputs to create a high current, low voltage power output;
- f. providing said high current, low voltage power output to said programmable processor;
- and
- g. at least partially powering said programmable processor by said high current, low voltage power output.
Dependencies are inferred from the claim text.