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US 2017/0317592 A1Published application
Dc-dc converter
AssigneeSii Semiconductor Corporation
InventorsAkihiro KAWANO, Katsuya GOTO
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Abstract
There is provided a DC-DC converter which is safe and secure, but yet with low power consumption. The DC-DC converter is configured such that an overcurrent protection circuit is operated intermittently only for a predetermined period of time based on a signal output from an output control circuit to turn on a switching element.
Claims3
A DC-DC converter, comprising:
- a switching element connected between one end of an inductor, which includes another end at which an output voltage is generated, and a input terminal of the DC-DC converter;
- an error amplifier that monitors the output voltage;
- an output control circuit that outputs a control signal to a gate of the switching element based on an output signal of the error amplifier;
- and
- an overcurrent protection circuit that outputs a signal to the output control circuit when current flowing through the switching element becomes predetermined current or higher to turn off the switching element,
- wherein a signal based on the output signal of the output control circuit is input to the overcurrent protection circuit so that the overcurrent protection circuit will perform intermittent operation to operate only for a predetermined period of time.
3 more elements
Dependencies are inferred from the claim text.