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US 12,638,481 B2Granted
Power detector with wide dynamic range
AssigneepSemi Corporation
InventorsDamian Costa, Chih-Chieh Cheng, Christopher C. Murphy, Tero Tapio Ranta
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AssigneepSemi Corporation
InventorsDamian Costa, Chih-Chieh Cheng, Christopher C. Murphy, Tero Tapio Ranta
Estimating the term…
A power detector with wide dynamic range. The power detector includes a linear detector, followed by a voltage-to-current-to-voltage converter, which is then followed by an amplification stage. The current-to-voltage conversion in the converter is performed logarithmically. The power detector generates a desired linear-in-dB response at the output. In this power detector, the distribution of gain along the signal path is optimized in order to preserve linearity, and to minimize the impact of offset voltage inherently present in electronic blocks, which would corrupt the output voltage. Further, the topologies in the sub-blocks are designed to provide wide dynamic range, and to mitigate error sources. Moreover, the temperature sensitivity is designed out by either minimizing temperature variation of an individual block such as the v-i-v detector, or using two sub-blocks in tandem to provide overall temperature compensation. In one aspect, active resistors are used in order to compensate for temperature variations.
A power detector comprising:
A power detector comprising:
A method of operating a power converter, the power converter including a voltage-to-voltage converter and a differential amplifier, the method comprising:
A method of operating a power converter, the power converter including a voltage-to-voltage converter and a differential amplifier, the method comprising:
Dependencies are inferred from the claim text.