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US 11,309,851 B2Granted
Power supply circuitry and radio communication apparatus
AssigneesKabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
InventorMinoru Nagata
Life of this patent
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Abstract
A power supply circuitry includes a first circuitry, a second circuitry, a fourth circuitry, and a fifth circuitry. The first circuitry outputs a first current based on a drive signal. The second circuitry generates a second current according to the first current. The fourth circuitry generates the drive signal based on a first voltage according to the first current. The fifth circuitry outputs a second voltage based on the first current and on the second current.
Claims18
A power supply circuitry comprising:
- a first circuitry configured to output a first current based on a drive signal;
- a second circuitry configured to output a second current according to the first current;
- a fourth circuitry configured to generate the drive signal based on a first voltage according to the first current;
- and
- a fifth circuitry configured to output a second voltage based on the first current and on the second current.
2 more elements
A power supply circuitry comprising:
- a first transistor configured to output a first current;
- a first differential amplifier coupled to a drive terminal of the first transistor and configured to apply a drive voltage which drives the first transistor, to the first transistor based on a difference between a voltage output from the first transistor and a reference voltage;
- a second transistor having a drive terminal coupled to the drive terminal of the first transistor and configured to output a second current proportional to the first current;
- and
- a second differential amplifier coupled to an output of the first transistor and to an output of the second transistor and configured to output a second voltage based on a difference between the output of the first transistor and the output of the second transistor.
2 more elements
Dependencies are inferred from the claim text.