SOFT-START CIRCUIT AND BUCK CONVERTER COMPRISING THE SAME
First Claim
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1. A switch control circuit for a power switch coupled to an inductor between an input terminal and an output terminal in a converter circuit, the switch control circuit comprising:
- a soft start circuit configured to compensate a soft start voltage during a soft start time period according to a result of comparing a feedback voltage corresponding to an output voltage of the output terminal and an input detection voltage corresponding to an input voltage of the input terminal; and
a circuit configured to control switching of the power switch by using the soft start voltage and the feedback voltage during the soft start time period.
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Abstract
A buck converter includes a power switch having a first end to receive an input voltage, and a soft start circuit configured to compensate a soft start voltage during a soft start time period according to a result of comparing a feedback voltage corresponding to an output voltage of the buck converter and an input detection voltage corresponding to the input voltage. The buck converter controls switching of the power switch using the soft start voltage.
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Citations
20 Claims
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1. A switch control circuit for a power switch coupled to an inductor between an input terminal and an output terminal in a converter circuit, the switch control circuit comprising:
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a soft start circuit configured to compensate a soft start voltage during a soft start time period according to a result of comparing a feedback voltage corresponding to an output voltage of the output terminal and an input detection voltage corresponding to an input voltage of the input terminal; and a circuit configured to control switching of the power switch by using the soft start voltage and the feedback voltage during the soft start time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A buck converter comprising:
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a power switch having a first end to receive an input voltage; and a soft start circuit configured to compensate a soft start voltage during a soft start time period according to a result of comparing a feedback voltage corresponding to an output voltage of the buck converter and an input detection voltage corresponding to the input voltage, wherein the buck converter controls switching of the power switch using the soft start voltage. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification