Quasi-resonant magnetron power supply
AssigneeB/E Aerospace, Inc.
InventorKjell Lidström
Life of this patent
Estimating the term…
Abstract
A power supply comprises at least one input to couple the power supply to a power source. The power supply also comprises at least one switched-mode power circuit configured to extract electrical energy from the power source, the electrical energy to be transferred to a load. The power supply additionally comprises at least one control module coupled between the at least one input and the at least one switched-mode power circuit. The control module is configured to control operation of the switched-mode power circuit to regulate a voltage-to-current ratio at the at least one input of the power supply.
Claims20
A power supply, comprising:
- at least one input to couple the power supply to a power source;
- at least one switched-mode power circuit configured to extract power from the power source, wherein the power is to be transferred to a load;
- and
- at least one control module coupled between the at least one input and to the at least one switched-mode power circuit, the at least one control module having
- an input for obtaining a voltage signal representative of a voltage wave shape supplied by the power source, and an input for obtaining a current signal representative of a current wave shape supplied by the power source,
- a control unit configured to generate at least one control signal based on a difference between the voltage wave shape and the current wave shape supplied by the power source, and
- an output for providing the at least one control signal to the at least one switched-mode power circuit to control operation of the switched-mode power circuit to regulate a voltage-to-current ratio at the at least one input of the power supply.
A power supply, comprising:
- a respective input to couple the power supply to each of three phase outputs of a three-phase power source;
- a respective switched-mode power circuit configured to extract power from a respective phase of the power source;
- and
- at least one control module including
- an input for obtaining a voltage signal representative of a voltage wave shape supplied by each phase of the power source, and an input for obtaining a current signal representative of a current wave shape supplied by each phase of the power source,
- a control unit configured to generate at least one control signal based on respective differences between respective voltage wave shapes and corresponding current wave shapes supplied by the phase of the power source, and
- an output for providing the at least one control signal to the respective switched-mode power circuits to control operation of the respective switched-mode power circuits to regulate a voltage-to-current ratio at each of the respective inputs of the power supply.
A method of regulating a power supply having an input to couple the power supply to a power source and a switched-mode power circuit to extract power from the power source, wherein the power is to be provided to a load, the method comprising:
- obtaining a first signal indicative of a voltage wave shape at the input of the power supply;
- obtaining a second signal indicative of a current wave shape at the input of the power supply;
- comparing the first signal and the second signal to detect a difference between the first signal and the second signal;
- generating at least one control signal based on the difference between the first signal and the second signal, and
- controlling, using the at least one control signal, operation of the switched-mode power circuit to regulate a voltage-to-current ratio at the input of the power supply.
Dependencies are inferred from the claim text.