发明名称 |
STEP-UP/DOWN DC-DC CONVERTER |
摘要 |
A step-up/down DC-DC converter is disclosed that includes: a step-up/down part generating an output voltage by stepping up or down an input voltage; and a control part generating an error signal indicating an error between a voltage value obtained by dividing the output voltage and a predetermined reference voltage, and causing the step-up/down part to perform a step-up or step-down operation based on the comparison between the error signal and first and second triangle wave signals. The control part includes a first circuit generating the first triangle wave signal for step- down control and a second circuit generating the second triangle wave signal for step-up control. The first circuit generates a clock signal synchronized with the first triangle wave signal, and outputs the clock signal to the second circuit. The second circuit generates the second triangle wave signal synchronized with the first triangle wave signal based on the input clock signal.
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申请公布号 |
KR20050119213(A) |
申请公布日期 |
2005.12.20 |
申请号 |
KR20057020272 |
申请日期 |
2005.10.25 |
申请人 |
RICOH CO., LTD. |
发明人 |
NITTA SHOHICHI;MATSUO MASAHIRO;NOMURA RITSUKO |
分类号 |
H02M3/155;H02M3/158;(IPC1-7):H02M3/155 |
主分类号 |
H02M3/155 |
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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