发明名称 |
Power supply device, control circuit, electronic device and control method for power supply |
摘要 |
A power supply device that includes a switch circuit to which an input voltage is supplied, a coil coupled between the switch circuit and an output terminal from which an output voltage is outputted. A voltage adding circuit adds a slope voltage to a reference voltage. A control unit compares a feedback voltage corresponding to the output voltage and the reference voltage and switches the switch circuit at a timing corresponding to a comparison result of the feedback voltage and the reference voltage. A slope adjustment circuit differentiates a current flowing in the coil and adjusts a slope amount of the slope based on a differentiation result of the current. |
申请公布号 |
US8593126(B2) |
申请公布日期 |
2013.11.26 |
申请号 |
US201213471604 |
申请日期 |
2012.05.15 |
申请人 |
SUGA SHINICHIRO;IDO KENTA;SUZUKI TOMOHIRO;SUMIYA HIROAKI;YASUKOUCHI KATSUYUKI;YOSHINO TAKAHIRO;SPANSION LLC |
发明人 |
SUGA SHINICHIRO;IDO KENTA;SUZUKI TOMOHIRO;SUMIYA HIROAKI;YASUKOUCHI KATSUYUKI;YOSHINO TAKAHIRO |
分类号 |
G05F1/575;G05F1/618 |
主分类号 |
G05F1/575 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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