Programmable power regulator for medium to high power RF amplifiers with variable frequency applications
First Claim
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1. A power regulator for regulating power provided to a transistor-based circuit, comprising:
- means for controlling a variable reference voltage based on a frequency of operation; and
means for modifying an output voltage based on a change in the frequency of operation, wherein the means for controlling controls the variable reference voltage based on a target frequency and an operational frequency band that has been divided into sub-bands.
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Abstract
A power regulator regulates the power provided to a transistor-based circuit, such as that which might be employed in a high stability MTI radar system. According to the invention, a variable reference voltage is controlled based on the frequency of operation. The output voltage of the power regulator is then modified accordingly. Preferably, the reference voltage is controlled based on the location of the target frequency in relation to the overall operational frequency band, which has been divided into a series of sub-bands.
48 Citations
33 Claims
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1. A power regulator for regulating power provided to a transistor-based circuit, comprising:
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means for controlling a variable reference voltage based on a frequency of operation; and
means for modifying an output voltage based on a change in the frequency of operation, wherein the means for controlling controls the variable reference voltage based on a target frequency and an operational frequency band that has been divided into sub-bands. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A power regulator for regulating power provided to a transistor-based circuit, comprising:
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means for controlling a variable reference voltage based on a frequency of operation; and
means for modifying an output voltage based on a change in the frequency of operation, wherein the means for controlling controls the variable reference voltage based on the location of a target frequency within a series of sub-bands, wherein the series of sub-bands comprise the operational frequency band of the power regulator. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A frequency-adaptive power regulator for regulating power provided to a transistor-based circuit used in a pulsed radar system, comprising:
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an input circuit for providing an input regarding a frequency;
a control circuit for determining a modified reference voltage or a modified offset voltage based on the input;
an error amplifier or differential amplifier for modifying an output voltage;
a pass-through circuit for passing the modified output voltage when the pulsed radar system is engaged; and
a discharge circuit for discharging voltage when the output voltage is to be reduced. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25)
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26. A method of regulating power provided to a transistor-based circuit, comprising:
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dividing an operational frequency band into a sub-bands;
controlling a power regulator output voltage based on a specific frequency;
wherein the power regulator output voltage is controlled in order to maintain a substantially uniform output response of the transistor-based circuit. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. A method of regulating power provided to a transistor-based circuit, comprising:
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providing input values corresponding to a target frequency;
computing a modified output voltage that is appropriate for the target frequency;
modifying a reference voltage based on the modified output voltage; and
providing the modified output voltage to the transistor-based circuit, thereby rendering an output response that is substantially independent of variations in transistor gain across frequency.
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Specification